Fix 404 for embed root page

Going to `/~gitbook/embed/page/` should load the space's root page, but returns a 404 instead. This fixes that.

.github/CONTRIBUTING.md

@@ -54,10 +54,9 @@ After forking this repository, you'll want to [create a branch](https://docs.git
 #### 3. Install dependencies and run the project locally
 
 ##### Prerequisites:
-- Node.js (Version: >=20.6)
-  - Use `nvm` for easy Node management
-- [Bun](https://bun.sh/) (Version: >=1.2.15)
-  - We use a text-based lockfile which isn't supported below 1.2.15
+
+- [Node.js](https://nodejs.org/en) (see "engines" in `package.json`)
+- [Bun](https://bun.sh/) (see "packageManager" in `package.json`)
 
 ##### Setup steps:
 

.github/workflows/ci.yaml

@@ -4,8 +4,9 @@ on:
     push:
         branches:
             - main
+            - changeset-release/main
 env:
-    NPM_TOKEN_READONLY: ${{ secrets.NPM_TOKEN_READONLY }}
+    BUN_NPM_TOKEN: ${{ secrets.NPM_TOKEN_READONLY }}
 jobs:
     format:
         runs-on: ubuntu-latest
@@ -41,7 +42,7 @@ jobs:
         name: Build (Open Source)
         timeout-minutes: 6
         env:
-            NPM_TOKEN_READONLY: ''
+            BUN_NPM_TOKEN: ''
         steps:
             - name: Checkout
               uses: actions/checkout@v4

.github/workflows/deploy-preview.yaml

@@ -5,7 +5,7 @@ on:
       branches:
         - main
 env:
-    NPM_TOKEN_READONLY: ${{ secrets.NPM_TOKEN_READONLY }}
+    BUN_NPM_TOKEN: ${{ secrets.NPM_TOKEN_READONLY }}
 jobs:
     deploy-v2-vercel:
         name: Deploy v2 to Vercel (preview)
@@ -182,9 +182,9 @@ jobs:
                   SITE_BASE_URL: ${{ needs.deploy-v2-cloudflare.outputs.deployment-url }}/url/
                   ARGOS_TOKEN: ${{ secrets.ARGOS_TOKEN }}
                   ARGOS_BUILD_NAME: 'customers-v2'
-    pagespeed-testing-v2:
+    browserless-testing-v2-vercel:
         runs-on: ubuntu-latest
-        name: PageSpeed Testing v1
+        name: Browserless Testing v2 (Vercel)
         needs: deploy-v2-vercel
         steps:
             - name: Checkout
@@ -195,8 +195,26 @@ jobs:
               run: bun install --frozen-lockfile
               env:
                   PUPPETEER_SKIP_DOWNLOAD: 1
-            - name: Run pagespeed tests
-              run: bun ./packages/gitbook/tests/pagespeed-testing.ts
+            - name: Run tests
+              run: cd ./packages/gitbook && bun e2e-browserless
               env:
                   BASE_URL: ${{needs.deploy-v2-vercel.outputs.deployment-url}}
-                  PAGESPEED_API_KEY: ${{ secrets.PAGESPEED_API_KEY }}
+                  SITE_BASE_URL: ${{ needs.deploy-v2-vercel.outputs.deployment-url }}/url/
+    # browserless-testing-v2-cloudflare:
+    #     runs-on: ubuntu-latest
+    #     name: Browserless Testing v2 (Cloudflare)
+    #     needs: deploy-v2-cloudflare
+    #     steps:
+    #         - name: Checkout
+    #           uses: actions/checkout@v4
+    #         - name: Setup Bun
+    #           uses: ./.github/composite/setup-bun
+    #         - name: Install dependencies
+    #           run: bun install --frozen-lockfile
+    #           env:
+    #               PUPPETEER_SKIP_DOWNLOAD: 1
+    #         - name: Run tests
+    #           run: cd ./packages/gitbook && bun e2e-browserless
+    #           env:
+    #               BASE_URL: ${{needs.deploy-v2-cloudflare.outputs.deployment-url}}
+    #               SITE_BASE_URL: ${{ needs.deploy-v2-cloudflare.outputs.deployment-url }}/url/

.github/workflows/deploy-production.yaml

@@ -4,7 +4,7 @@ on:
         branches:
             - main
 env:
-    NPM_TOKEN_READONLY: ${{ secrets.NPM_TOKEN_READONLY }}
+    BUN_NPM_TOKEN: ${{ secrets.NPM_TOKEN_READONLY }}
 jobs:
     deploy-v2-vercel:
         name: Deploy v2 to Vercel (production)

.github/workflows/deploy-staging.yaml

@@ -4,7 +4,7 @@ on:
         branches:
             - main
 env:
-    NPM_TOKEN_READONLY: ${{ secrets.NPM_TOKEN_READONLY }}
+    BUN_NPM_TOKEN: ${{ secrets.NPM_TOKEN_READONLY }}
 jobs:
     deploy-v2-vercel:
         name: Deploy v2 to Vercel (staging)

.github/workflows/publish.yaml

@@ -6,7 +6,7 @@ on:
             - main
 
 env:
-    NPM_TOKEN_READONLY: ${{ secrets.NPM_TOKEN_READONLY }}
+    BUN_NPM_TOKEN: ${{ secrets.NPM_TOKEN_READONLY }}
     
 concurrency: ${{ github.workflow }}-${{ github.ref }}
 
@@ -14,29 +14,38 @@ jobs:
     publish:
         name: Publish
         runs-on: ubuntu-latest
+        permissions:
+            id-token: write
+            pull-requests: write
+            contents: write
         steps:
             - name: Checkout Repo
               uses: actions/checkout@v3
               with:
                   # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
                   fetch-depth: 0
+            - name: Setup Node
+              uses: actions/setup-node@v4
+              with:
+                  node-version: 22
+                  registry-url: 'https://registry.npmjs.org'
+            # Ensure npm 11.5.1 or later is installed
+            - name: Update npm
+              run: npm install -g npm@latest
             - name: Setup Bun
               uses: ./.github/composite/setup-bun
             - name: Install dependencies
               run: bun install --frozen-lockfile
               env:
                   PUPPETEER_SKIP_DOWNLOAD: 1
-            - name: Create Release Pull Request or Publish to npm
+            - name: Create Release Pull Request
               id: changesets
               uses: changesets/action@v1
               with:
-                  publish: npm run release
-                  version: npm run changeset-version
+                  publish: bun run publish-all-packages
+                  version: bun run changeset-version
               env:
                   # Using a PAT instead of GITHUB_TOKEN because we need to run workflows when releases are created
                   # https://github.com/orgs/community/discussions/26875#discussioncomment-3253761
                   GITHUB_TOKEN: ${{ secrets.GH_PERSONAL_TOKEN }}
-                  NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
-                  CLOUDFLARE_ACCOUNT_ID: ${{ secrets.CLOUDFLARE_ACCOUNT_ID }}
-                  CLOUDFLARE_API_TOKEN: ${{ secrets.CLOUDFLARE_API_TOKEN }}
 

.gitignore

@@ -25,3 +25,7 @@ yarn-error.log*
 
 # TypeScript
 *.tsbuildinfo
+.npmrc
+
+# Bun pack artifacts
+packages/*/*.tgz

.nvmrc

@@ -1 +1 @@
-v20.6
+v22.3

README.md

@@ -35,7 +35,7 @@ To run a local version of this project, please follow these simple steps.
 
 ### Prerequisites
 
-- Node.js (Version: >=20.6)
+- Node.js (Version: >= 22.3)
     - Use nvm for easy Node management
 - [Bun](https://bun.sh/) (Version: >=1.2.15)
   - We use a text-based lockfile which isn't supported below 1.2.15
@@ -90,7 +90,7 @@ If you are GitBook staff, you'll need our NPM token in your local environment.
 ```
 .env.local
 
-NPM_TOKEN_READONLY=xxx
+BUN_NPM_TOKEN=xxx
 ```
 
 and then reinstall dependencies.

bunfig.toml

@@ -1,2 +1,2 @@
 [install.scopes]
-"gitbook" = { token = "$NPM_TOKEN_READONLY", url = "https://registry.npmjs.org" }
+"gitbook" = { token = "$BUN_NPM_TOKEN", url = "https://registry.npmjs.org" }

package.json

@@ -1,22 +1,27 @@
 {
     "name": "gitbook",
     "version": "0.1.0",
+    "engines": {
+        "node": "^22.3.0"
+    },
     "devDependencies": {
         "@biomejs/biome": "^1.9.4",
-        "@changesets/cli": "^2.27.12",
-        "turbo": "^2.5.0",
-        "vercel": "^39.3.0"
+        "@changesets/cli": "^2.29.7",
+        "turbo": "^2.6.1",
+        "vercel": "^39.4.2"
     },
-    "packageManager": "bun@1.2.15",
+    "packageManager": "bun@1.3.2",
     "overrides": {
         "@codemirror/state": "6.4.1",
-        "react": "^19.0.0",
-        "react-dom": "^19.0.0",
+        "@types/react": "catalog:",
+        "@types/react-dom": "catalog:",
+        "react": "catalog:",
+        "react-dom": "catalog:",
         "esbuild": "0.24.2"
     },
     "private": true,
     "scripts": {
-        "dev": "turbo run dev",
+        "dev": "turbo run dev --concurrency 20",
         "build": "turbo run build",
         "clean-deps": "rm -rf node_modules && rm -rf packages/*/node_modules",
         "typecheck": "turbo run typecheck",
@@ -26,16 +31,29 @@
         "e2e": "turbo run e2e",
         "e2e-customers": "turbo run e2e-customers",
         "changeset": "changeset",
-        "changeset-version": "changeset version && bun run format",
-        "release": "turbo run release && changeset publish",
+        "changeset-version": "changeset version && bun run format && bun update",
+        "publish-all-packages": "turbo run publish-to-npm --continue=dependencies-successful",
         "download:env": "op read op://gitbook-x-dev/gitbook-open/.env.local >> .env.local",
         "clean": "turbo run clean"
     },
     "workspaces": {
         "packages": ["packages/*"],
         "catalog": {
-            "@gitbook/api": "^0.140.0",
-            "bidc": "^0.0.2"
+            "@tsconfig/strictest": "^2.0.6",
+            "@tsconfig/node20": "^20.1.6",
+            "@gitbook/api": "0.150.0",
+            "@scalar/api-client-react": "^1.3.46",
+            "@types/react": "^19.0.0",
+            "@types/react-dom": "^19.0.0",
+            "assert-never": "^1.4.0",
+            "bidc": "^0.0.2",
+            "bun-types": "^1.1.20",
+            "classnames": "^2.5.1",
+            "react": "^19.0.0",
+            "react-dom": "^19.0.0",
+            "tsdown": "^0.15.6",
+            "typescript": "^5.5.3",
+            "usehooks-ts": "^3.1.1"
         }
     },
     "patchedDependencies": {

packages/browser-types/CHANGELOG.md

@@ -1,5 +1,29 @@
 # @gitbook/browser-types
 
+## 0.1.3
+
+### Patch Changes
+
+- 10995e0: Use NPM Trusted publishing for publishing the package.
+- Updated dependencies [10995e0]
+  - @gitbook/icons@0.3.4
+
+## 0.1.2
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+- Updated dependencies [6142d6b]
+  - @gitbook/icons@0.3.3
+
+## 0.1.1
+
+### Patch Changes
+
+- 295f03d: Republish packages
+- Updated dependencies [295f03d]
+  - @gitbook/icons@0.3.2
+
 ## 0.1.0
 
 ### Minor Changes

packages/browser-types/package.json

@@ -8,17 +8,29 @@
             "default": "./dist/index.js"
         }
     },
-    "version": "0.1.0",
+    "sideEffects": false,
+    "version": "0.1.3",
     "dependencies": {
         "@gitbook/api": "catalog:",
         "@gitbook/icons": "workspace:"
     },
     "devDependencies": {
-        "typescript": "^5.5.3"
+        "bun-types": "catalog:",
+        "tsdown": "catalog:",
+        "typescript": "catalog:"
     },
     "scripts": {
-        "build": "tsc",
-        "typecheck": "tsc --noEmit"
+        "build": "tsdown",
+        "typecheck": "tsc --noEmit",
+        "dev": "bun run build -- --watch ./src",
+        "publish-to-npm": "../../scripts/publish-if-new.sh"
     },
-    "files": ["dist", "README.md", "CHANGELOG.md"]
+    "files": ["dist", "README.md", "CHANGELOG.md"],
+    "publishConfig": {
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
+    },
+    "repository": {
+        "url": "https://github.com/GitbookIO/gitbook"
+    }
 }

packages/cache-tags/CHANGELOG.md

@@ -1,5 +1,23 @@
 # @gitbook/cache-tags
 
+## 0.3.4
+
+### Patch Changes
+
+- 10995e0: Use NPM Trusted publishing for publishing the package.
+
+## 0.3.3
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+
+## 0.3.2
+
+### Patch Changes
+
+- 295f03d: Republish packages
+
 ## 0.3.1
 
 ### Patch Changes

packages/cache-tags/package.json

@@ -4,22 +4,32 @@
     "exports": {
         ".": {
             "types": "./dist/index.d.ts",
-            "development": "./src/index.ts",
             "default": "./dist/index.js"
         }
     },
-    "version": "0.3.1",
+    "sideEffects": false,
+    "version": "0.3.4",
     "dependencies": {
         "@gitbook/api": "catalog:",
-        "assert-never": "^1.2.1"
+        "assert-never": "catalog:"
     },
     "devDependencies": {
-        "typescript": "^5.5.3"
+        "bun-types": "catalog:",
+        "tsdown": "catalog:",
+        "typescript": "catalog:"
     },
     "scripts": {
-        "build": "tsc",
+        "build": "tsdown",
         "typecheck": "tsc --noEmit",
-        "dev": "tsc -w"
+        "dev": "bun run build -- --watch ./src",
+        "publish-to-npm": "../../scripts/publish-if-new.sh"
     },
-    "files": ["dist", "src", "README.md", "CHANGELOG.md"]
+    "files": ["dist", "README.md", "CHANGELOG.md"],
+    "publishConfig": {
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
+    },
+    "repository": {
+        "url": "https://github.com/GitbookIO/gitbook"
+    }
 }

packages/colors/CHANGELOG.md

@@ -1,5 +1,23 @@
 # @gitbook/colors
 
+## 0.4.3
+
+### Patch Changes
+
+- 10995e0: Use NPM Trusted publishing for publishing the package.
+
+## 0.4.2
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+
+## 0.4.1
+
+### Patch Changes
+
+- 295f03d: Republish packages
+
 ## 0.4.0
 
 ### Minor Changes

packages/colors/package.json

@@ -4,18 +4,28 @@
     "exports": {
         ".": {
             "types": "./dist/index.d.ts",
-            "development": "./src/index.ts",
             "default": "./dist/index.js"
         }
     },
-    "version": "0.4.0",
+    "sideEffects": false,
+    "version": "0.4.3",
     "devDependencies": {
-        "typescript": "^5.5.3"
+        "bun-types": "catalog:",
+        "tsdown": "catalog:",
+        "typescript": "catalog:"
     },
     "scripts": {
-        "build": "tsc",
+        "build": "tsdown",
         "typecheck": "tsc --noEmit",
-        "dev": "tsc -w"
+        "dev": "bun run build -- --watch ./src",
+        "publish-to-npm": "../../scripts/publish-if-new.sh"
     },
-    "files": ["dist", "src", "README.md", "CHANGELOG.md"]
+    "files": ["dist", "README.md", "CHANGELOG.md"],
+    "publishConfig": {
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
+    },
+    "repository": {
+        "url": "https://github.com/GitbookIO/gitbook"
+    }
 }

packages/embed/CHANGELOG.md

@@ -1,5 +1,35 @@
 # @gitbook/embed
 
+## 0.1.5
+
+### Patch Changes
+
+- 10995e0: Use NPM Trusted publishing for publishing the package.
+- Updated dependencies [10995e0]
+  - @gitbook/icons@0.3.4
+
+## 0.1.4
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+- Updated dependencies [6142d6b]
+  - @gitbook/icons@0.3.3
+
+## 0.1.3
+
+### Patch Changes
+
+- 295f03d: Republish packages
+- Updated dependencies [295f03d]
+  - @gitbook/icons@0.3.2
+
+## 0.1.2
+
+### Patch Changes
+
+- 7508674: Fix bundling of packages
+
 ## 0.1.1
 
 ### Patch Changes

packages/embed/package.json

@@ -5,27 +5,44 @@
     "exports": {
         ".": {
             "types": "./dist/index.d.ts",
-            "default": "./dist/index.js",
-            "standalone": "./dist/standalone/index.js",
-            "react": "./dist/react/index.js"
+            "default": "./dist/index.js"
+        },
+        "./react": {
+            "types": "./dist/react/index.d.ts",
+            "default": "./dist/react/index.js"
         }
     },
-    "version": "0.1.1",
+    "sideEffects": false,
+    "version": "0.1.5",
     "dependencies": {
         "@gitbook/api": "catalog:",
         "@gitbook/icons": "workspace:",
         "bidc": "catalog:"
     },
     "peerDependencies": {
-        "react": "^18.0.0"
+        "react": "*"
     },
     "devDependencies": {
-        "typescript": "^5.5.3",
-        "react": "^19.0.0"
+        "@types/react": "catalog:",
+        "tsdown": "catalog:",
+        "typescript": "catalog:",
+        "react": "catalog:"
     },
     "scripts": {
-        "build": "tsc && bun build src/standalone/index.ts --bundle --minify --outdir=standalone",
-        "typecheck": "tsc --noEmit"
+        "build": "bun run build-lib && bun run build-standalone",
+        "build-lib": "tsdown",
+        "build-standalone": "bun build src/standalone/index.ts --bundle --minify --outdir=standalone",
+        "clean": "rm -rf ./dist",
+        "typecheck": "tsc --noEmit",
+        "dev": "bun run build -- --watch ./src",
+        "publish-to-npm": "../../scripts/publish-if-new.sh"
     },
-    "files": ["dist", "README.md", "CHANGELOG.md", "standalone"]
+    "files": ["dist", "README.md", "CHANGELOG.md"],
+    "publishConfig": {
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
+    },
+    "repository": {
+        "url": "https://github.com/GitbookIO/gitbook"
+    }
 }

packages/embed/src/react/GitBookFrame.tsx

@@ -1,4 +1,6 @@
-import React from 'react';
+'use client';
+
+import { useEffect, useMemo, useRef, useState } from 'react';
 import type {
     GetFrameURLOptions,
     GitBookEmbeddableConfiguration,
@@ -17,19 +19,19 @@ export type GitBookFrameProps = {
 export function GitBookFrame(props: GitBookFrameProps) {
     const { className, visitor, buttons, welcomeMessage, suggestions, tools } = props;
 
-    const frameRef = React.useRef<HTMLIFrameElement>(null);
+    const frameRef = useRef<HTMLIFrameElement>(null);
     const gitbook = useGitBook();
-    const [gitbookFrame, setGitbookFrame] = React.useState<GitBookFrameClient | null>(null);
+    const [gitbookFrame, setGitbookFrame] = useState<GitBookFrameClient | null>(null);
 
-    const frameURL = React.useMemo(() => gitbook.getFrameURL({ visitor }), [gitbook, visitor]);
+    const frameURL = useMemo(() => gitbook.getFrameURL({ visitor }), [gitbook, visitor]);
 
-    React.useEffect(() => {
+    useEffect(() => {
         if (frameRef.current) {
             setGitbookFrame(gitbook.createFrame(frameRef.current));
         }
     }, [gitbook]);
 
-    React.useEffect(() => {
+    useEffect(() => {
         gitbookFrame?.configure({
             buttons,
             welcomeMessage,

packages/embed/tsdown.config.ts

@@ -0,0 +1,13 @@
+import { defineConfig } from 'tsdown';
+
+export default defineConfig([
+    {
+        entry: 'src/index.ts',
+        outDir: 'dist',
+    },
+    {
+        entry: 'src/react/index.ts',
+        outDir: 'dist/react',
+        unbundle: true,
+    },
+]);

packages/emoji-codepoints/CHANGELOG.md

@@ -1,13 +1,25 @@
 # @gitbook/emoji-codepoints
 
+## 0.2.2
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+
+## 0.2.1
+
+### Patch Changes
+
+- 295f03d: Republish packages
+
 ## 0.2.0
 
 ### Minor Changes
 
--   57adb3e: Second release to fix publishing with changeset
+- 57adb3e: Second release to fix publishing with changeset
 
 ## 0.1.0
 
 ### Minor Changes
 
--   5f8a8fe: Initial release
+- 5f8a8fe: Initial release

packages/emoji-codepoints/package.json

@@ -1,12 +1,12 @@
 {
     "name": "@gitbook/emoji-codepoints",
     "description": "Optimized mapping of codepoints to the fully qualified emoji codepoints",
-    "version": "0.2.0",
+    "version": "0.2.2",
     "private": true,
     "exports": "./dist/index.ts",
-    "dependencies": {},
+    "sideEffects": false,
     "devDependencies": {
-        "emoji-assets": "^8.0.0"
+        "emoji-assets": "^9.0.0"
     },
     "scripts": {
         "generate": "bun ./build.ts",

packages/expr/CHANGELOG.md

@@ -1,5 +1,42 @@
 # @gitbook/expr
 
+## 1.2.4
+
+### Patch Changes
+
+- 10995e0: Use NPM Trusted publishing for publishing the package.
+- 10995e0: Use NPM dependency for eval-estree-expression
+
+## 1.2.3
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+
+## 1.2.2
+
+### Patch Changes
+
+- 295f03d: Republish packages
+
+## 1.2.1
+
+### Patch Changes
+
+- a629900: Add dev script for @gitbook/expr
+
+## 1.2.0
+
+### Minor Changes
+
+- 6da3655: Fix exports in gitbook/expr package.json
+
+## 1.1.1
+
+### Patch Changes
+
+- 3548fa6: Fix eval-estree-expr named import
+
 ## 1.1.0
 
 ### Minor Changes

packages/expr/package.json

@@ -1,37 +1,47 @@
 {
     "name": "@gitbook/expr",
     "description": "Safely evaluate & parse user-defined GitBook expressions.",
-    "version": "1.1.0",
+    "version": "1.2.4",
     "type": "module",
     "exports": {
         ".": {
             "types": "./dist/index.d.ts",
-            "development": "./src/index.ts",
             "default": "./dist/index.js"
         }
     },
     "sideEffects": false,
     "dependencies": {
-        "eval-estree-expression": "github:jonschlinkert/eval-estree-expression#9cf28d2",
         "acorn": "^8.14.0",
         "acorn-loose": "8.4.0",
         "acorn-walk": "^8.3.4",
+        "assert-never": "catalog:",
         "escodegen": "^2.1.0",
-        "assert-never": "^1.2.1"
+        "eval-estree-expression": "github:jonschlinkert/eval-estree-expression#fb0246a"
     },
     "devDependencies": {
-        "bun-types": "^1.1.20",
-        "tsdown": "^0.15.0",
+        "@tsconfig/strictest": "catalog:",
+        "@tsconfig/node20": "catalog:",
+        "@types/escodegen": "^0.0.10",
         "@types/estree": "^1.0.6",
-        "@babel/types": "^7.26.0",
         "@types/json-schema": "^7.0.15",
-        "@types/escodegen": "^0.0.10"
+        "bun-types": "catalog:",
+        "tsdown": "catalog:",
+        "typescript": "catalog:"
     },
     "scripts": {
-        "build": "tsdown --project tsconfig.build.json",
+        "build": "tsdown",
         "typecheck": "tsc --noEmit",
         "unit": "bun test",
-        "clean": "rm -rf ./dist"
+        "clean": "rm -rf ./dist",
+        "dev": "bun run build -- --watch ./src",
+        "publish-to-npm": "../../scripts/publish-if-new.sh"
     },
-    "files": ["dist", "README.md", "CHANGELOG.md"]
+    "files": ["dist", "README.md", "CHANGELOG.md"],
+    "publishConfig": {
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
+    },
+    "repository": {
+        "url": "https://github.com/GitbookIO/gitbook"
+    }
 }

packages/expr/src/runtime.ts

@@ -10,7 +10,8 @@ import {
 } from 'acorn';
 import { parse as parseLoose } from 'acorn-loose';
 import escodegen from 'escodegen';
-import { evaluate } from 'eval-estree-expression';
+import evalESTreeExpr from 'eval-estree-expression';
+const { evaluate } = evalESTreeExpr;
 
 import { AutoComplete } from './autocomplete';
 import { ExpressionError } from './errors';

packages/expr/tsconfig.build.json

@@ -1,10 +0,0 @@
-{
-    "$schema": "https://json.schemastore.org/tsconfig",
-    "extends": ["./tsconfig.json"],
-    "exclude": ["**/*.test.ts"],
-    "compilerOptions": {
-        "declaration": true,
-        "noEmit": false,
-        "outDir": "dist"
-    }
-}

packages/fonts/CHANGELOG.md

@@ -1,5 +1,23 @@
 # @gitbook/fonts
 
+## 0.1.3
+
+### Patch Changes
+
+- 10995e0: Use NPM Trusted publishing for publishing the package.
+
+## 0.1.2
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+
+## 0.1.1
+
+### Patch Changes
+
+- 295f03d: Republish packages
+
 ## 0.1.0
 
 ### Minor Changes

packages/fonts/package.json

@@ -4,28 +4,38 @@
     "exports": {
         ".": {
             "types": "./dist/index.d.ts",
-            "development": "./src/index.ts",
             "default": "./dist/index.js"
         }
     },
-    "version": "0.1.0",
+    "sideEffects": false,
+    "version": "0.1.3",
     "dependencies": {
         "@gitbook/api": "catalog:"
     },
     "devDependencies": {
-        "google-font-metadata": "^6.0.3",
-        "typescript": "^5.5.3"
+        "bun-types": "catalog:",
+        "google-font-metadata": "^6.0.7",
+        "tsdown": "catalog:",
+        "typescript": "catalog:"
     },
     "scripts": {
         "generate": "bun ./bin/generate.js",
-        "build": "tsc --project tsconfig.build.json",
+        "build": "tsdown",
         "typecheck": "tsc --noEmit",
-        "dev": "tsc -w",
+        "dev": "bun run build -- --watch ./src",
         "clean": "rm -rf ./dist && rm -rf ./src/data",
-        "unit": "bun test"
+        "unit": "bun test",
+        "publish-to-npm": "../../scripts/publish-if-new.sh"
     },
-    "files": ["dist", "src", "bin", "README.md", "CHANGELOG.md"],
+    "files": ["dist", "bin", "README.md", "CHANGELOG.md"],
     "engines": {
         "node": ">=20.0.0"
+    },
+    "publishConfig": {
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
+    },
+    "repository": {
+        "url": "https://github.com/GitbookIO/gitbook"
     }
 }

packages/fonts/src/__snapshots__/getDefaultFont.test.ts.snap

@@ -1,57 +1,57 @@
-// Bun Snapshot v1, https://goo.gl/fbAQLP
+// Bun Snapshot v1, https://bun.sh/docs/test/snapshots
 
 exports[`getDefaultFont should return correct object for Latin text 1`] = `
 {
   "font": "Inter",
-  "url": "https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hjp-Ek-_0ew.woff",
+  "url": "https://fonts.gstatic.com/s/inter/v20/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hjp-Ek-_0ew.woff",
 }
 `;
 
 exports[`getDefaultFont should return correct object for Cyrillic text 1`] = `
 {
   "font": "Inter",
-  "url": "https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZthjp-Ek-_0ewmM.woff",
+  "url": "https://fonts.gstatic.com/s/inter/v20/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZthjp-Ek-_0ewmM.woff",
 }
 `;
 
 exports[`getDefaultFont should return correct object for Greek text 1`] = `
 {
   "font": "Inter",
-  "url": "https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZxhjp-Ek-_0ewmM.woff",
+  "url": "https://fonts.gstatic.com/s/inter/v20/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZxhjp-Ek-_0ewmM.woff",
 }
 `;
 
 exports[`getDefaultFont should handle mixed script text 1`] = `
 {
   "font": "Inter",
-  "url": "https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZthjp-Ek-_0ewmM.woff",
+  "url": "https://fonts.gstatic.com/s/inter/v20/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZthjp-Ek-_0ewmM.woff",
 }
 `;
 
 exports[`getDefaultFont should handle different font weights: regular 1`] = `
 {
   "font": "Inter",
-  "url": "https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hjp-Ek-_0ew.woff",
+  "url": "https://fonts.gstatic.com/s/inter/v20/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hjp-Ek-_0ew.woff",
 }
 `;
 
 exports[`getDefaultFont should handle different font weights: bold 1`] = `
 {
   "font": "Inter",
-  "url": "https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuFuYAZ9hjp-Ek-_0ew.woff",
+  "url": "https://fonts.gstatic.com/s/inter/v20/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuFuYAZ9hjp-Ek-_0ew.woff",
 }
 `;
 
 exports[`getDefaultFont should handle different fonts: inter 1`] = `
 {
   "font": "Inter",
-  "url": "https://fonts.gstatic.com/s/inter/v18/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hjp-Ek-_0ew.woff",
+  "url": "https://fonts.gstatic.com/s/inter/v20/UcCO3FwrK3iLTeHuS_nVMrMxCp50SjIw2boKoduKmMEVuLyfAZ9hjp-Ek-_0ew.woff",
 }
 `;
 
 exports[`getDefaultFont should handle different fonts: roboto 1`] = `
 {
   "font": "Roboto",
-  "url": "https://fonts.gstatic.com/s/roboto/v32/KFOmCnqEu92Fr1Mu4mxMKTU1Kg.woff",
+  "url": "https://fonts.gstatic.com/s/roboto/v49/KFOMCnqEu92Fr1ME7kSn66aGLdTylUAMQXC89YmC2DPNWubEbVmUiAz0klQm_20.woff",
 }
 `;

packages/fonts/tsconfig.build.json

@@ -1,4 +0,0 @@
-{
-    "extends": "./tsconfig.json",
-    "exclude": ["node_modules", "src/**/*.test.ts"]
-}

packages/gitbook/CHANGELOG.md

@@ -1,5 +1,168 @@
 # gitbook
 
+## 0.20.0
+
+### Minor Changes
+
+- 1d92dc1: Update site layout and blocks with container queries and better transitions
+
+### Patch Changes
+
+- 8fdc5c8: Fix webframe height issue
+- 9022d87: Add breadcrumbs to search results
+- 0c01832: SearchInput fixes — Translate Clear button, Bold theme color, "Esc" keyboard shortcut
+- 1d1f0a7: Fix search container shadow
+- 2aa4f2e: Update dropdown menu styling
+- a49781e: Printable collapsed code block
+- 7d6a316: Revert contentref anchor title
+- e27986b: Reword "Everywhere" search scope to "All docs"
+- 758b34d: Move the "Ask <query>" to the bottom of search results if query is not a question
+- 0ae7cfd: Improve AI Search branding
+- f9f8011: Add alt text support to card covers
+- ebbb476: Improve ancestor label in references
+- 1b0613e: Tweak language dropdown styling
+- 3355960: Fix ToggeableLinkItem display
+- c31e564: Fix icon resolution for page group
+- 55c0b03: Support translations and generic variants together
+- 3876f70: Edgeless Assistant window on `depth: flat` sites
+- 683bb8f: Add confirmation to "Copy MCP URL" page action
+- 4534ea8: Implement unique title tags for sections & variants
+- 6d56df7: Treat pages without visible TOC items as `no-toc`
+- 8606f22: Add padding to TOC page group items
+- 3676d64: Update search scope UI
+- c32d449: Fix OpenAPI path display
+- 8ce7322: Add OpenAPI servers selection
+- 2c3066e: Improve OAuth2 scopes handling in OpenAPI
+- 6b1c9fe: Fix opacity of ScrollContainer buttons on bold themes
+- Updated dependencies [b4a021a]
+- Updated dependencies [a512c90]
+- Updated dependencies [df1966d]
+- Updated dependencies [b45feaf]
+- Updated dependencies [10995e0]
+- Updated dependencies [f9f8011]
+- Updated dependencies [10995e0]
+- Updated dependencies [8ce7322]
+- Updated dependencies [2c3066e]
+  - @gitbook/react-openapi@1.5.3
+  - @gitbook/openapi-parser@3.0.5
+  - @gitbook/react-contentkit@0.7.8
+  - @gitbook/browser-types@0.1.3
+  - @gitbook/cache-tags@0.3.4
+  - @gitbook/react-math@0.6.4
+  - @gitbook/colors@0.4.3
+  - @gitbook/embed@0.1.5
+  - @gitbook/fonts@0.1.3
+  - @gitbook/icons@0.3.4
+  - @gitbook/expr@1.2.4
+
+## 0.19.2
+
+### Patch Changes
+
+- 6142d6b: Mark as sideEffects, fix all package bundles
+- 75543b1: Update minimum Node version in .npmrc
+- 511f1cf: Add scroll margin to Expandable
+- Updated dependencies [6142d6b]
+  - @gitbook/emoji-codepoints@0.2.2
+  - @gitbook/react-contentkit@0.7.7
+  - @gitbook/openapi-parser@3.0.4
+  - @gitbook/browser-types@0.1.2
+  - @gitbook/react-openapi@1.5.2
+  - @gitbook/cache-tags@0.3.3
+  - @gitbook/react-math@0.6.3
+  - @gitbook/colors@0.4.2
+  - @gitbook/fonts@0.1.2
+  - @gitbook/icons@0.3.3
+  - @gitbook/expr@1.2.3
+
+## 0.19.1
+
+### Patch Changes
+
+- 295f03d: Republish packages
+- Updated dependencies [bdde392]
+- Updated dependencies [295f03d]
+  - @gitbook/react-contentkit@0.7.6
+  - @gitbook/browser-types@0.1.1
+  - @gitbook/cache-tags@0.3.2
+  - @gitbook/colors@0.4.1
+  - @gitbook/emoji-codepoints@0.2.1
+  - @gitbook/expr@1.2.2
+  - @gitbook/fonts@0.1.1
+  - @gitbook/icons@0.3.2
+  - @gitbook/openapi-parser@3.0.3
+  - @gitbook/react-math@0.6.2
+  - @gitbook/react-openapi@1.5.1
+
+## 0.19.0
+
+### Minor Changes
+
+- ed7d47d: Show a toolbar for authenticated users with access to the current site.
+- 50c1be3: Move inline expression evaluation from API to GBO
+- 56e46ce: Add Italian translation
+- b932e4e: Scope search across sections and variants
+
+### Patch Changes
+
+- 162cfe4: Hide sections if only one is present
+- 1456251: Unify section display condition
+- 9344431: Fix missing geo data in site insights because of incorrect proxying of events.
+- eea8f1e: Enhance OpenAPI security scopes handling
+- 2b8a2d2: Add stable scroll gutter to search container
+- b498521: Fix robots.txt preventing favicon from being indexed.
+- ceb32b1: Redo search scope UI
+- 8e99871: Highlight discriminator properties in oneOf, allOf, anyOf objects
+- 2fc2127: Make search accessible
+- f3e4041: Adapt OpenAPI code samples to prefill API key using visitor data
+- 6815dd1: Fix markdownPageURL for PageActions
+- c06b3dd: Improve default site icon
+- cba583a: Use sitespace title instead of space title in search
+- e434442: Support nested site section groups
+- 469b332: Add support for inline expressions rendering with visitor data on GBO side
+- 0ef5dc8: Update to column width sizing
+- 1e4e54e: Fix rounded outline items
+- 379d486: Expose "Best match" when site has translations
+- c21693f: Improve screen reader accessibility for hints
+- badf3a9: Add alt text to inline image
+- c23d4ef: Fix crash for card cover defined without objectFit
+- d74f8a7: Improve wide page width layout
+- b8388e5: Add scrollcontainer component
+- b85eccd: Refactor section tabs
+- 1e53f46: Fix button content truncate
+- 7a504b7: Fix OpenAPI response dropdown & vertical overflow
+- a4c3399: Fix OpenAPI alternatives not showing
+- Updated dependencies [a629900]
+- Updated dependencies [eea8f1e]
+- Updated dependencies [8e99871]
+- Updated dependencies [f3e4041]
+- Updated dependencies [319a1e5]
+- Updated dependencies [529f940]
+- Updated dependencies [754cc11]
+- Updated dependencies [d7948e3]
+- Updated dependencies [a4c3399]
+  - @gitbook/expr@1.2.1
+  - @gitbook/react-openapi@1.5.0
+
+## 0.18.0
+
+### Minor Changes
+
+- 262afa3: Expose a MCP server for the docs site under /~gitbook/mcp
+
+### Patch Changes
+
+- Updated dependencies [262afa3]
+  - @gitbook/icons@0.3.1
+  - @gitbook/react-openapi@1.4.3
+  - @gitbook/react-contentkit@0.7.5
+
+## 0.17.2
+
+### Patch Changes
+
+- @gitbook/react-openapi@1.4.2
+
 ## 0.17.1
 
 ### Patch Changes

packages/gitbook/e2e/customers.spec.ts

@@ -62,11 +62,11 @@ const testCases: TestsCase[] = [
         contentBaseURL: 'https://docs.gmgn.ai',
         tests: [{ name: 'Home', url: '/' }],
     },
-    {
-        name: 'docs.spicychat.ai',
-        contentBaseURL: 'https://docs.spicychat.ai',
-        tests: [{ name: 'Home', url: '/' }],
-    },
+    // {
+    //     name: 'docs.spicychat.ai',
+    //     contentBaseURL: 'https://docs.spicychat.ai',
+    //     tests: [{ name: 'Home', url: '/' }],
+    // },
     {
         name: 'docs.portainer.io',
         contentBaseURL: 'https://docs.portainer.io',
@@ -112,11 +112,11 @@ const testCases: TestsCase[] = [
         contentBaseURL: 'https://adiblar.gitbook.io',
         tests: [{ name: 'Home', url: '/' }],
     },
-    {
-        name: 'docs.gradient.network',
-        contentBaseURL: 'https://docs.gradient.network',
-        tests: [{ name: 'Home', url: '/' }],
-    },
+    // {
+    //     name: 'docs.gradient.network',
+    //     contentBaseURL: 'https://docs.gradient.network',
+    //     tests: [{ name: 'Home', url: '/' }],
+    // },
     // {
     //     name: 'mygate-network.gitbook.io',
     //     contentBaseURL: 'https://mygate-network.gitbook.io',
@@ -172,11 +172,6 @@ const testCases: TestsCase[] = [
         contentBaseURL: 'https://docs.realapp.link',
         tests: [{ name: 'Home', url: '/' }],
     },
-    {
-        name: 'docs.plaza.finance',
-        contentBaseURL: 'https://docs.plaza.finance',
-        tests: [{ name: 'Home', url: '/' }],
-    },
     {
         name: 'docs.publicai.io',
         contentBaseURL: 'https://docs.publicai.io',

packages/gitbook/e2e/internal.spec.ts

@@ -33,6 +33,7 @@ import {
     headerLinks,
     runTestCases,
     waitForCookiesDialog,
+    waitForCoverImages,
     waitForNotFound,
 } from './util';
 
@@ -159,20 +160,20 @@ const searchTestCases: Test[] = [
             await expect(page.getByTestId('ai-chat-input')).toBeFocused();
         },
     },
-    {
-        name: 'Ask - AI Mode: Assistant - Button',
-        url: getCustomizationURL({
-            ai: {
-                mode: CustomizationAIMode.Assistant,
-            },
-        }),
-        screenshot: false,
-        run: async (page) => {
-            await page.getByTestId('ai-chat-button').click();
-            await expect(page.getByTestId('ai-chat')).toBeVisible();
-            await expect(page.getByTestId('ai-chat-input')).toBeFocused();
-        },
-    },
+    // {
+    //     name: 'Ask - AI Mode: Assistant - Button',
+    //     url: getCustomizationURL({
+    //         ai: {
+    //             mode: CustomizationAIMode.Assistant,
+    //         },
+    //     }),
+    //     screenshot: false,
+    //     run: async (page) => {
+    //         await page.getByTestId('ai-chat-button').click();
+    //         await expect(page.getByTestId('ai-chat')).toBeVisible();
+    //         await expect(page.getByTestId('ai-chat-input')).toBeFocused();
+    //     },
+    // },
     {
         name: 'Ask - AI Mode: Assistant - URL query (Initial)',
         url: `${getCustomizationURL({
@@ -228,6 +229,58 @@ const testCases: TestsCase[] = [
                     );
                 },
             },
+            {
+                name: 'Expandable TOC navigation',
+                url: '',
+                run: async (page) => {
+                    await waitForCookiesDialog(page);
+
+                    // Verify "Navigation" link is not visible initially
+                    const navigationLink = page.getByRole('link', { name: 'Navigation' });
+                    await expect(navigationLink).not.toBeVisible();
+
+                    // Find and click the chevron element that is next to "Editor" in the TOC
+                    // It is a span inside the link
+                    const editorChevron = page
+                        .getByRole('link', { name: 'Editor' })
+                        .locator('span');
+                    await editorChevron.click();
+
+                    // Verify "Navigation" link becomes visible after expansion
+                    await expect(navigationLink).toBeVisible();
+                },
+            },
+            {
+                name: 'Expandable nested TOC navigation',
+                url: '',
+                screenshot: false,
+                run: async (page) => {
+                    await waitForCookiesDialog(page);
+
+                    // Verify "Spaces" link is not visible initially
+                    const navigationLink = page.getByRole('link', { name: 'Spaces' });
+                    await expect(navigationLink).not.toBeVisible();
+
+                    // Find and click the chevron element that is next to "Editor" in the TOC
+                    // It is a span inside the link
+                    const editorChevron = page
+                        .getByRole('link', { name: 'Editor' })
+                        .locator('span');
+                    await editorChevron.click();
+
+                    // At this stage the link should still not be visible
+                    await expect(navigationLink).not.toBeVisible();
+
+                    // Then we click 'Content Structure' chevron to expand further
+                    const contentStructureChevron = page
+                        .getByRole('link', { name: 'Content Structure' })
+                        .locator('span');
+                    await contentStructureChevron.click();
+
+                    // Verify "Spaces" link becomes visible after expansion
+                    await expect(navigationLink).toBeVisible();
+                },
+            },
             ...searchTestCases,
             {
                 name: 'Not found',
@@ -285,6 +338,37 @@ const testCases: TestsCase[] = [
                     ).toBeVisible();
                 },
             },
+            {
+                name: 'Switch variant with alternate link in metadata',
+                url: 'rfcs',
+                run: async (page) => {
+                    const spaceDropdown = page
+                        .locator('[data-testid="space-dropdown-button"]')
+                        .locator('visible=true');
+                    await spaceDropdown.click();
+
+                    const variantSelectionDropdown = page.locator(
+                        'css=[data-testid="dropdown-menu"]'
+                    );
+
+                    // Click the variant space called 'Multi-Variants' for which
+                    // there is an alternate link in the current (RFC variant) page metadata
+                    await variantSelectionDropdown
+                        .getByRole('menuitem', {
+                            name: 'Multi-Variants',
+                        })
+                        .click();
+
+                    // It should navigate to the alternate link defined in the metadata (a completely different page)
+                    await page.waitForURL((url) =>
+                        url.pathname.includes('multi-variants/reference/api-reference/pets')
+                    );
+                    // Verify we are on the correct page by checking the h1
+                    await expect(
+                        page.getByRole('heading', { level: 1, name: 'Pets' })
+                    ).toBeVisible();
+                },
+            },
         ],
     },
     {
@@ -727,7 +811,10 @@ const testCases: TestsCase[] = [
                 url: 'blocks/integrations',
                 run: async (page) => {
                     await waitForCookiesDialog(page);
-                    const mermaidIframe = page.locator('iframe[title*="mermaid"]').contentFrame();
+                    const mermaidIframe = page
+                        .locator('iframe[title*="mermaid"]')
+                        .first()
+                        .contentFrame();
                     await expect(mermaidIframe.getByText('Mermaid', { exact: true })).toBeVisible();
                     await expect(mermaidIframe.getByText('Diagram', { exact: true })).toBeVisible();
                 },
@@ -851,7 +938,10 @@ const testCases: TestsCase[] = [
             {
                 name: 'With cover',
                 url: 'page-options/page-with-cover',
-                run: waitForCookiesDialog,
+                run: async (page) => {
+                    await waitForCookiesDialog(page);
+                    await waitForCoverImages(page);
+                },
             },
             {
                 name: 'With cover for dark mode',
@@ -866,12 +956,18 @@ const testCases: TestsCase[] = [
             {
                 name: 'With hero cover',
                 url: 'page-options/page-with-hero-cover',
-                run: waitForCookiesDialog,
+                run: async (page) => {
+                    await waitForCookiesDialog(page);
+                    await waitForCoverImages(page);
+                },
             },
             {
                 name: 'With cover and no TOC',
                 url: 'page-options/page-with-cover-and-no-toc',
-                run: waitForCookiesDialog,
+                run: async (page) => {
+                    await waitForCookiesDialog(page);
+                    await waitForCoverImages(page);
+                },
                 screenshot: {
                     waitForTOCScrolling: false,
                 },
@@ -1454,10 +1550,7 @@ const testCases: TestsCase[] = [
                     locale,
                 },
             }),
-            run: async (page) => {
-                const dialog = page.getByTestId('cookies-dialog');
-                await expect(dialog).toBeVisible();
-            },
+            run: waitForCookiesDialog,
         })),
     },
     {

packages/gitbook/e2e/util.ts

@@ -143,7 +143,10 @@ export const headerLinks: CustomizationHeaderItem[] = [
 
 export async function waitForCookiesDialog(page: Page) {
     const dialog = page.getByTestId('cookies-dialog');
-    await expect(dialog).toBeVisible();
+    await expect(dialog).toBeVisible({
+        // Cookies dialog may take some times to appear
+        timeout: 10_000,
+    });
 }
 
 export async function waitForNotFound(_page: Page, response: Response | null) {
@@ -151,6 +154,13 @@ export async function waitForNotFound(_page: Page, response: Response | null) {
     expect(response?.status()).toBe(404);
 }
 
+export async function waitForCoverImages(page: Page) {
+    // Wait for cover images to exist (not the shimmer placeholder)
+    await expect(page.locator('img[alt="Page cover"]').first()).toBeVisible({
+        timeout: 10_000,
+    });
+}
+
 /**
  * Transform test cases into Playwright tests and run it.
  */
@@ -336,6 +346,7 @@ export function getCustomizationURL(partial: DeepPartial<SiteCustomizationSettin
         pageActions: {
             externalAI: true,
             markdown: true,
+            mcp: true,
         },
         trademark: {
             enabled: true,

packages/gitbook/open-next.config.ts

@@ -7,7 +7,8 @@ export default {
             converter: 'edge',
             proxyExternalRequest: 'fetch',
             queue: () => import('./openNext/queue/middleware').then((m) => m.default),
-            incrementalCache: () => import('./openNext/incrementalCache').then((m) => m.default),
+            incrementalCache: () =>
+                import('./openNext/incrementalCache/server').then((m) => m.default),
             tagCache: () => import('./openNext/tagCache/middleware').then((m) => m.default),
         },
     },
@@ -18,7 +19,8 @@ export default {
             converter: 'edge',
             proxyExternalRequest: 'fetch',
             queue: () => import('./openNext/queue/middleware').then((m) => m.default),
-            incrementalCache: () => import('./openNext/incrementalCache').then((m) => m.default),
+            incrementalCache: () =>
+                import('./openNext/incrementalCache/middleware').then((m) => m.default),
             tagCache: () => import('./openNext/tagCache/middleware').then((m) => m.default),
         },
     },

packages/gitbook/openNext/customWorkers/defaultWrangler.jsonc

@@ -1,15 +1,13 @@
 {
     "main": "default.js",
     "name": "gitbook-open-v2-server",
+    "keep_names": false,
     "compatibility_date": "2025-04-14",
     "compatibility_flags": [
         "nodejs_compat",
         "allow_importable_env",
         "global_fetch_strictly_public"
     ],
-    "observability": {
-        "enabled": true
-    },
     "vars": {
         "NEXT_CACHE_DO_QUEUE_DISABLE_SQLITE": "true"
     },
@@ -17,7 +15,8 @@
         "dev": {
             "vars": {
                 "STAGE": "dev",
-                "OPEN_NEXT_REQUEST_ID_HEADER": "true"
+                "OPEN_NEXT_REQUEST_ID_HEADER": "true",
+                "GITBOOK_URL": "http://localhost:8771"
             },
             "r2_buckets": [
                 {

packages/gitbook/openNext/customWorkers/doWrangler.jsonc

@@ -2,14 +2,12 @@
     "main": "do.js",
     "name": "gitbook-open-v2-do",
     "compatibility_date": "2025-04-14",
+    "keep_names": false,
     "compatibility_flags": [
         "nodejs_compat",
         "allow_importable_env",
         "global_fetch_strictly_public"
     ],
-    "observability": {
-        "enabled": true
-    },
     "env": {
         "preview": {
             "vars": {

packages/gitbook/openNext/customWorkers/middleware.js

@@ -26,8 +26,10 @@ export default class extends WorkerEntrypoint {
     async fetch(request) {
         return runWithCloudflareRequestContext(request, this.env, this.ctx, async () => {
             const startTime = Date.now();
+            const middlewareRequest = new Request(request.url, request);
+            middlewareRequest.headers.set('x-open-next-continent', request.cf?.continent || '');
             // - `Request`s are handled by the Next server
-            const reqOrResp = await middlewareHandler(request, this.env, this.ctx);
+            const reqOrResp = await middlewareHandler(middlewareRequest, this.env, this.ctx);
             if (reqOrResp instanceof Response) {
                 const duration = Date.now() - startTime;
                 const logMessage = formatLog(

packages/gitbook/openNext/customWorkers/middlewareWrangler.jsonc

@@ -2,6 +2,7 @@
     "main": "middleware.js",
     "name": "gitbook-open-v2",
     "compatibility_date": "2025-04-14",
+    "keep_names": false,
     "compatibility_flags": [
         "nodejs_compat",
         "allow_importable_env",
@@ -11,9 +12,6 @@
         "directory": "../../.open-next/assets",
         "binding": "ASSETS"
     },
-    "observability": {
-        "enabled": true
-    },
     "vars": {
         "NEXT_CACHE_DO_QUEUE_DISABLE_SQLITE": "true"
     },

packages/gitbook/openNext/incrementalCache/incrementalCache.ts

@@ -18,15 +18,12 @@ export type KeyOptions = {
 
 /**
  *
- * It is very similar to the `R2IncrementalCache` in the `@opennextjs/cloudflare` package, but it allow us to trace
- * the cache operations. It also integrates both R2 and Cache API in a single class.
- * Having our own, will allow us to customize it in the future if needed.
+ * It is very similar to the `R2IncrementalCache` in the `@opennextjs/cloudflare` package, but it has an additional
+ * R2WriteBuffer Durable Object to handle writes to R2. Given how we set up cache, we often end up writing to the same key too fast.
  */
-class GitbookIncrementalCache implements IncrementalCache {
+export class GitbookIncrementalCache implements IncrementalCache {
     name = 'GitbookIncrementalCache';
 
-    protected localCache: Cache | undefined;
-
     async get<CacheType extends CacheEntryType = 'cache'>(
         key: string,
         cacheType?: CacheType
@@ -34,7 +31,6 @@ class GitbookIncrementalCache implements IncrementalCache {
         const cacheKey = this.getR2Key(key, cacheType);
 
         const r2 = getCloudflareContext().env[BINDING_NAME];
-        const localCache = await this.getCacheInstance();
         if (!r2) throw new Error('No R2 bucket');
         if (process.env.SHOULD_BYPASS_CACHE === 'true') {
             // We are in a local middleware environment, we should bypass the cache
@@ -42,27 +38,17 @@ class GitbookIncrementalCache implements IncrementalCache {
             return null;
         }
         try {
-            // Check local cache first if available
-            const localCacheEntry = await localCache.match(this.getCacheUrlKey(cacheKey));
-            if (localCacheEntry) {
-                const result = (await localCacheEntry.json()) as WithLastModified<
-                    CacheValue<CacheType>
-                >;
-                return this.returnNullOn404({
-                    ...result,
-                    // Because we use tag cache and also invalidate them every time,
-                    // if we get a cache hit, we don't need to check the tag cache as we already know it's not been revalidated
-                    // this should improve performance even further, and reduce costs
-                    shouldBypassTagCache: true,
-                });
-            }
-
             const r2Object = await r2.get(cacheKey);
             if (!r2Object) return null;
 
+            const json = (await r2Object.json()) as CacheValue<CacheType>;
+            const lastModified = r2Object.uploaded.getTime();
+
+            if (!json) return null;
+
             return this.returnNullOn404({
-                value: await r2Object.json(),
-                lastModified: r2Object.uploaded.getTime(),
+                value: json,
+                lastModified,
             });
         } catch (e) {
             console.error('Failed to get from cache', e);
@@ -89,39 +75,8 @@ class GitbookIncrementalCache implements IncrementalCache {
     ): Promise<void> {
         const cacheKey = this.getR2Key(key, cacheType);
 
-        const localCache = await this.getCacheInstance();
-
         try {
             await this.writeToR2(cacheKey, JSON.stringify(value));
-
-            //TODO: Check if there is any places where we don't have tags
-            // Ideally we should always have tags, but in case we don't, we need to decide how to handle it
-            // For now we default to a build ID tag, which allow us to invalidate the cache in case something is wrong in this deployment
-            const tags = this.getTagsFromCacheEntry(value) ?? [
-                `build_id/${process.env.NEXT_BUILD_ID}`,
-            ];
-
-            // We consider R2 as the source of truth, so we update the local cache
-            // only after a successful R2 write
-            await localCache.put(
-                this.getCacheUrlKey(cacheKey),
-                new Response(
-                    JSON.stringify({
-                        value,
-                        // Note: `Date.now()` returns the time of the last IO rather than the actual time.
-                        //       See https://developers.cloudflare.com/workers/reference/security-model/
-                        lastModified: Date.now(),
-                    }),
-                    {
-                        headers: {
-                            // Cache-Control default to 30 minutes, will be overridden by `revalidate`
-                            // In theory we should always get the `revalidate` value
-                            'cache-control': `max-age=${value.revalidate ?? 60 * 30}`,
-                            'cache-tag': tags.join(','),
-                        },
-                    }
-                )
-            );
         } catch (e) {
             console.error('Failed to set to cache', e);
         }
@@ -131,14 +86,10 @@ class GitbookIncrementalCache implements IncrementalCache {
         const cacheKey = this.getR2Key(key);
 
         const r2 = getCloudflareContext().env[BINDING_NAME];
-        const localCache = await this.getCacheInstance();
         if (!r2) throw new Error('No R2 bucket');
 
         try {
             await r2.delete(cacheKey);
-
-            // Here again R2 is the source of truth, so we delete from local cache first
-            await localCache.delete(this.getCacheUrlKey(cacheKey));
         } catch (e) {
             console.error('Failed to delete from cache', e);
         }
@@ -168,12 +119,6 @@ class GitbookIncrementalCache implements IncrementalCache {
         }
     }
 
-    async getCacheInstance(): Promise<Cache> {
-        if (this.localCache) return this.localCache;
-        this.localCache = await caches.open('incremental-cache');
-        return this.localCache;
-    }
-
     // Utility function to generate keys for R2/Cache API
     getR2Key(initialKey: string, cacheType: CacheEntryType = 'cache'): string {
         let key = initialKey;
@@ -189,28 +134,4 @@ class GitbookIncrementalCache implements IncrementalCache {
             '/'
         );
     }
-
-    getCacheUrlKey(cacheKey: string): string {
-        return `http://cache.local/${cacheKey}`;
-    }
-
-    getTagsFromCacheEntry<CacheType extends CacheEntryType>(
-        entry: CacheValue<CacheType>
-    ): string[] | undefined {
-        if ('tags' in entry && entry.tags) {
-            return entry.tags;
-        }
-
-        if ('meta' in entry && entry.meta && 'headers' in entry.meta && entry.meta.headers) {
-            const rawTags = entry.meta.headers['x-next-cache-tags'];
-            if (typeof rawTags === 'string') {
-                return rawTags.split(',');
-            }
-        }
-        if ('value' in entry) {
-            return entry.tags;
-        }
-    }
 }
-
-export default new GitbookIncrementalCache();

packages/gitbook/openNext/incrementalCache/middleware.ts

@@ -0,0 +1,11 @@
+import { withRegionalCache } from '@opennextjs/cloudflare/overrides/incremental-cache/regional-cache';
+import { GitbookIncrementalCache } from './incrementalCache';
+
+export default withRegionalCache(new GitbookIncrementalCache(), {
+    mode: 'long-lived',
+    // We can do it because we use our own logic to invalidate the cache
+    bypassTagCacheOnCacheHit: true,
+    defaultLongLivedTtlSec: 60 * 60 * 24 /* 24 hours */,
+    // We don't want to update the cache entry on every cache hit
+    shouldLazilyUpdateOnCacheHit: false,
+});

packages/gitbook/openNext/incrementalCache/server.ts

@@ -0,0 +1,12 @@
+import { withRegionalCache } from '@opennextjs/cloudflare/overrides/incremental-cache/regional-cache';
+import { GitbookIncrementalCache } from './incrementalCache';
+
+export default withRegionalCache(new GitbookIncrementalCache(), {
+    mode: 'long-lived',
+    // Because of a race condition, the middleware may have populated the cache entry before `cache.match` had time to run on the server.
+    // TODO: We should bypass the incremental cache entirely when the interceptor has caught the request. Should be done in OpenNext.
+    bypassTagCacheOnCacheHit: false,
+    defaultLongLivedTtlSec: 60 * 60 * 24 /* 24 hours */,
+    // We don't want to update the cache entry on every cache hit
+    shouldLazilyUpdateOnCacheHit: false,
+});

packages/gitbook/package.json

@@ -1,20 +1,25 @@
 {
     "name": "gitbook",
-    "version": "0.17.1",
+    "version": "0.20.0",
     "private": true,
     "dependencies": {
+        "@cloudflare/workers-types": "^4.20251011.0",
         "@gitbook/api": "catalog:",
         "@gitbook/browser-types": "workspace:*",
         "@gitbook/cache-tags": "workspace:*",
         "@gitbook/colors": "workspace:*",
         "@gitbook/emoji-codepoints": "workspace:*",
+        "@gitbook/expr": "workspace:*",
+        "@gitbook/embed": "workspace:*",
         "@gitbook/fonts": "workspace:*",
         "@gitbook/icons": "workspace:*",
         "@gitbook/openapi-parser": "workspace:*",
         "@gitbook/react-contentkit": "workspace:*",
         "@gitbook/react-math": "workspace:*",
         "@gitbook/react-openapi": "workspace:*",
-        "@opennextjs/cloudflare": "^1.7.1",
+        "@modelcontextprotocol/sdk": "1.17.5",
+        "@opennextjs/aws": "^3.8.5",
+        "@opennextjs/cloudflare": "^1.11.0",
         "@radix-ui/react-checkbox": "^1.0.4",
         "@radix-ui/react-dropdown-menu": "^2.1.12",
         "@radix-ui/react-hover-card": "^1.1.15",
@@ -26,19 +31,16 @@
         "@tailwindcss/typography": "^0.5.16",
         "@tusbar/cache-control": "^1.0.2",
         "ai": "^4.2.2",
-        "assert-never": "^1.2.1",
+        "assert-never": "catalog:",
         "bidc": "catalog:",
-        "bun-types": "^1.1.20",
-        "classnames": "^2.5.1",
+        "classnames": "catalog:",
         "direction": "^2.0.1",
         "event-iterator": "^2.0.0",
-        "framer-motion": "^10.16.14",
         "image-size": "^2.0.2",
         "js-cookie": "^3.0.5",
         "jsontoxml": "^1.0.1",
         "jwt-decode": "^4.0.0",
-        "katex": "^0.16.9",
-        "mathjax": "^3.2.2",
+        "mcp-handler": "^1.0.2",
         "mdast-util-from-markdown": "^2.0.2",
         "mdast-util-frontmatter": "^2.0.1",
         "mdast-util-gfm": "^3.1.0",
@@ -46,14 +48,17 @@
         "memoizee": "^0.4.17",
         "micromark-extension-frontmatter": "^2.0.0",
         "micromark-extension-gfm": "^3.0.0",
-        "next": "15.3.5",
-        "next-themes": "^0.2.1",
+        "motion": "^12.23.24",
+        "next": "15.4.0",
+        "next-themes": "^0.4.6",
         "nuqs": "^2.2.3",
         "object-hash": "^3.0.0",
         "object-identity": "^0.1.2",
         "openapi-types": "^12.1.3",
         "p-map": "^7.0.3",
         "quick-lru": "^7.0.1",
+        "react": "catalog:",
+        "react-dom": "catalog:",
         "react-hotkeys-hook": "^4.4.1",
         "rehype-sanitize": "^6.0.0",
         "rehype-stringify": "^10.0.1",
@@ -69,13 +74,15 @@
         "unist-util-remove": "^4.0.0",
         "unist-util-visit": "^5.0.0",
         "url-join": "^5.0.0",
-        "usehooks-ts": "^3.1.0",
+        "usehooks-ts": "catalog:",
         "warn-once": "^0.1.1",
+        "zod": "^3",
         "zustand": "^5.0.3"
     },
     "devDependencies": {
         "@argos-ci/playwright": "^5.0.9",
         "@playwright/test": "^1.54.2",
+        "@scalar/api-client-react": "catalog:",
         "@tailwindcss/postcss": "^4.1.11",
         "@types/js-cookie": "^3.0.6",
         "@types/jsontoxml": "^1.0.5",
@@ -84,20 +91,20 @@
         "@types/node": "^20",
         "@types/object-hash": "^3.0.6",
         "@types/parse-cache-control": "^1.0.4",
-        "@types/psi": "^4.1.6",
-        "@types/react": "18.3.13",
-        "@types/react-dom": "18.3.1",
+        "@types/react": "catalog:",
+        "@types/react-dom": "catalog:",
         "@types/rison": "^0.0.9",
+        "bun-types": "catalog:",
         "deepmerge": "^4.3.1",
         "env-cmd": "^10.1.0",
         "jsonwebtoken": "^9.0.2",
         "postcss": "^8",
-        "psi": "^4.1.0",
         "stylelint": "^16.16.0",
         "tailwindcss": "^4.1.11",
         "ts-essentials": "^10.0.1",
-        "typescript": "^5.5.3",
-        "vercel": "^39.3.0"
+        "typescript": "catalog:",
+        "vercel": "^39.3.0",
+        "wrangler": "^4.43.0"
     },
     "scripts": {
         "generate": "./scripts/generate.sh",
@@ -113,9 +120,14 @@
         "e2e": "playwright test e2e/internal.spec.ts e2e/pdf.spec.ts --project=chromium",
         "e2e-customers": "playwright test e2e/customers.spec.ts --project=chromium",
         "unit": "bun test {src,packages} --preload ./tests/preload-bun.ts",
+        "e2e-browserless": "bun test ./tests/",
         "typecheck": "tsc --noEmit"
     },
     "browserslist": [
         ">0.3%, chrome >= 64, edge >= 79, firefox >= 67, opera >= 51, safari >= 12 and not dead"
-    ]
+    ],
+    "publishConfig": {
+        "access": "public",
+        "registry": "https://registry.npmjs.org/"
+    }
 }

packages/gitbook/src/app/sites/static/[mode]/[siteURL]/[siteData]/~gitbook/embed/demo/route.ts

@@ -16,9 +16,107 @@ export async function GET(
     return new Response(
         `
 <html>
-    <head></head>
-    <body></body>
+    <head>
+        <meta name="color-scheme" content="light dark">
+    </head>
+    <body>
+        <svg style="position: absolute; bottom: 6rem; right: 4rem;" width="719" height="644" viewBox="0 0 719 644" fill="none" xmlns="http://www.w3.org/2000/svg">
+            <rect opacity="0.1" x="0.566895" y="208" width="529.567" height="228" rx="16" fill="#A4A7B0"/>
+            <g opacity="0.2">
+                <line x1="141.567" y1="472" x2="4.56689" y2="472" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="416.067" y1="472" x2="165.567" y2="472" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="526.567" y1="472" x2="440.067" y2="472" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="194.567" y1="496" x2="4.56689" y2="496" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="324.067" y1="496" x2="218.567" y2="496" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="473.567" y1="496" x2="348.067" y2="496" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="231.901" y1="520" x2="4.56689" y2="520" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="291.186" y1="520" x2="255.901" y2="520" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="442.058" y1="520" x2="315.186" y2="520" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="526.567" y1="520" x2="466.058" y2="520" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="141.567" y1="544" x2="4.56689" y2="544" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="348.191" y1="544" x2="165.567" y2="544" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="184.017" y1="592" x2="4.56689" y2="592" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="312.848" y1="592" x2="208.017" y2="592" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="386.574" y1="592" x2="336.848" y2="592" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="448.401" y1="592" x2="410.574" y2="592" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="126.633" y1="616" x2="4.56689" y2="616" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="401.133" y1="616" x2="150.633" y2="616" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="526.567" y1="616" x2="425.133" y2="616" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="179.457" y1="640" x2="4.56689" y2="640" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="329.569" y1="640" x2="203.457" y2="640" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="141.567" y1="4" x2="4.56689" y2="4" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="416.067" y1="4" x2="165.567" y2="4" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="526.567" y1="4" x2="440.067" y2="4" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="194.567" y1="28" x2="4.56689" y2="28" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="324.067" y1="28" x2="218.567" y2="28" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="473.567" y1="28" x2="348.067" y2="28" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="231.901" y1="52" x2="4.56689" y2="52" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="291.186" y1="52" x2="255.901" y2="52" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="442.058" y1="52" x2="315.186" y2="52" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="526.567" y1="52" x2="466.058" y2="52" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="141.567" y1="76" x2="4.56689" y2="76" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="348.191" y1="76" x2="165.567" y2="76" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="184.017" y1="124" x2="4.56689" y2="124" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="312.848" y1="124" x2="208.017" y2="124" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="386.574" y1="124" x2="336.848" y2="124" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="448.401" y1="124" x2="410.574" y2="124" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="126.633" y1="148" x2="4.56689" y2="148" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="401.133" y1="148" x2="150.633" y2="148" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="526.567" y1="148" x2="425.133" y2="148" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="179.457" y1="172" x2="4.56689" y2="172" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="329.569" y1="172" x2="203.457" y2="172" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+                <rect x="563" y="208" width="156" height="256" rx="16" fill="#A4A7B0" opacity="0.05"/>
+            <g opacity="0.2">
+                <line x1="682.214" y1="228" x2="583" y2="228" stroke="#656973" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="638.472" y1="252" x2="583" y2="252" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="681.396" y1="252" x2="654.472" y2="252" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="617.989" y1="276" x2="583" y2="276" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="699" y1="276" x2="633.989" y2="276" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="603.168" y1="300" x2="583" y2="300" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="657.873" y1="300" x2="619.168" y2="300" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="637" y1="324" x2="583" y2="324" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="688.836" y1="324" x2="653" y2="324" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="657.474" y1="372" x2="583" y2="372" stroke="#656973" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="633" y1="396" x2="583" y2="396" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="699" y1="396" x2="649" y2="396" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="585.416" y1="420" x2="583" y2="420" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="621.731" y1="420" x2="601.416" y2="420" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="699" y1="420" x2="637.731" y2="420" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+            <g opacity="0.2">
+                <line x1="619.471" y1="444" x2="583" y2="444" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+                <line x1="658.186" y1="444" x2="635.471" y2="444" stroke="#A4A7B0" stroke-width="8" stroke-linecap="round"/>
+            </g>
+        </svg>
+    </body>
     <script src="${context.linker.toAbsoluteURL(context.linker.toPathInSite('~gitbook/embed/script.js'))}"></script>
+    <script>
+    window.GitBook('configure', {
+        suggestions: [
+            'Help me get started',
+            'What can I ask you?',
+            'Show me tips and tricks',
+        ],
+    });
+        window.GitBook('open');
+    </script>
 </html>
 `,
         {

packages/gitbook/src/app/sites/static/[mode]/[siteURL]/[siteData]/~gitbook/mcp/route.ts

@@ -0,0 +1,92 @@
+import { type RouteLayoutParams, getStaticSiteContext } from '@/app/utils';
+import { throwIfDataError } from '@/lib/data';
+import { joinPathWithBaseURL } from '@/lib/paths';
+import { findSiteSpaceBy } from '@/lib/sites';
+import { createMcpHandler } from 'mcp-handler';
+import type { NextRequest } from 'next/server';
+import { z } from 'zod';
+
+async function handler(
+    nextRequest: NextRequest,
+    { params }: { params: Promise<RouteLayoutParams> }
+) {
+    const { context } = await getStaticSiteContext(await params);
+    const { dataFetcher, linker, site } = context;
+
+    const mcpHandler = createMcpHandler(
+        (server) => {
+            server.tool(
+                'searchDocumentation',
+                `Search across the documentation to find relevant information, code examples, API references, and guides. Use this tool when you need to answer questions about ${site.title}, find specific documentation, understand how features work, or locate implementation details. The search returns contextual content with titles and direct links to the documentation pages.`,
+                {
+                    query: z.string(),
+                },
+                async ({ query }) => {
+                    const results = await throwIfDataError(
+                        dataFetcher.searchSiteContent({
+                            organizationId: context.organizationId,
+                            siteId: site.id,
+                            query,
+                            scope: { mode: 'all' },
+                        })
+                    );
+
+                    return {
+                        content: results.flatMap((spaceResult) => {
+                            const found = findSiteSpaceBy(
+                                context.structure,
+                                (siteSpace) => siteSpace.space.id === spaceResult.id
+                            );
+                            const spaceURL = found?.siteSpace.urls.published;
+                            if (!spaceURL) {
+                                return [];
+                            }
+
+                            return spaceResult.pages.map((pageResult) => {
+                                const pageURL = linker.toAbsoluteURL(
+                                    linker.toLinkForContent(
+                                        joinPathWithBaseURL(spaceURL, pageResult.path)
+                                    )
+                                );
+
+                                const body = pageResult.sections
+                                    ?.map((section) => section.body)
+                                    .join('\n');
+
+                                return {
+                                    type: 'text',
+                                    text: [
+                                        `Title: ${pageResult.title}`,
+                                        `Link: ${pageURL}`,
+                                        body ? `Content: ${body}` : '',
+                                    ]
+                                        .filter(Boolean)
+                                        .join('\n'),
+                                };
+                            });
+                        }),
+                    };
+                }
+            );
+        },
+        {},
+        {
+            basePath: context.linker.toPathInSite('~gitbook/'),
+            streamableHttpEndpoint: '/mcp',
+            maxDuration: 60,
+            verboseLogs: true,
+            disableSse: true,
+        }
+    );
+
+    // Next.js request.url is the original URL and not the rewritten one from the middleware
+    const requestURL = new URL(
+        context.linker.toAbsoluteURL(context.linker.toPathInSite('~gitbook/mcp'))
+    );
+    requestURL.search = nextRequest.nextUrl.search;
+
+    const request = new Request(requestURL, nextRequest);
+    return mcpHandler(request);
+}
+
+export { handler as GET, handler as POST };

packages/gitbook/src/app/utils.ts

@@ -19,7 +19,7 @@ export type RouteLayoutParams = {
 };
 
 export type RouteParams = RouteLayoutParams & {
-    pagePath: string;
+    pagePath?: string[];
 };
 
 /**
@@ -80,8 +80,10 @@ export async function getDynamicSiteContext(params: RouteLayoutParams) {
  * Get the decoded page path from the params.
  */
 export function getPagePathFromParams(params: RouteParams) {
-    const decoded = decodeURIComponent(params.pagePath);
-    return decoded;
+    if (!params.pagePath || params.pagePath.length === 0) {
+        return '';
+    }
+    return params.pagePath.map((part) => decodeURIComponent(part)).join('/');
 }
 
 function getSiteURLFromParams(params: RouteLayoutParams) {

packages/gitbook/src/components/AI/useAI.tsx

@@ -1,14 +1,14 @@
 'use client';
 
 import { CustomizationAIMode } from '@gitbook/api';
-import { Icon, type IconName, IconStyle } from '@gitbook/icons';
+import { Icon, type IconName } from '@gitbook/icons';
 import * as React from 'react';
 import type { ReactNode } from 'react';
 
 import { tString, useLanguage } from '@/intl/client';
 import type { GitBookAssistant } from '@gitbook/browser-types';
 import { useAIChatController, useAIChatState } from '.';
-import { AIChatIcon, getAIChatName } from '../AIChat';
+import { AIChatIcon, AISearchIcon, getAIChatName } from '../AIChat';
 import { useIntegrationAssistants } from '../Integrations';
 import { useSearch } from '../Search/useSearch';
 
@@ -104,16 +104,7 @@ export function useAI(): AIContext {
         assistants.push({
             id: 'gitbook-ai-search',
             label: tString(language, 'ai_chat_context_badge'),
-            icon: (
-                <div className="relative">
-                    <Icon icon="search" className="size-4" />
-                    <Icon
-                        icon="sparkle"
-                        iconStyle={IconStyle.Solid}
-                        className="absolute top-[2.5px] left-[2.6px] size-2"
-                    />
-                </div>
-            ),
+            icon: <AISearchIcon />,
             open: (query?: string) => {
                 if (query) {
                     setSearchState((prev) =>
@@ -137,7 +128,7 @@ export function useAI(): AIContext {
                     setSearchState((prev) => ({
                         ask: null, // Reset ask as we assume the assistant will handle it
                         query: prev?.query ?? null,
-                        global: prev?.global ?? false,
+                        scope: prev?.scope ?? 'default',
                         open: false,
                     }));
                     assistant.open(query);

packages/gitbook/src/components/AI/useAIChat.tsx

@@ -146,7 +146,7 @@ export function AIChatProvider(props: {
         setSearchState((prev) => ({
             ask: prev?.ask ?? initialQuery ?? '',
             query: prev?.query ?? null,
-            global: prev?.global ?? false,
+            scope: prev?.scope ?? 'default',
             open: false, // Close search popover when opening chat
         }));
     }, [setSearchState]);
@@ -159,7 +159,7 @@ export function AIChatProvider(props: {
         setSearchState((prev) => ({
             ask: null,
             query: prev?.query ?? null,
-            global: prev?.global ?? false,
+            scope: prev?.scope ?? 'default',
             open: false,
         }));
     }, [setSearchState]);
@@ -374,7 +374,7 @@ export function AIChatProvider(props: {
                 setSearchState((prev) => ({
                     ask: input.message,
                     query: prev?.query ?? null,
-                    global: prev?.global ?? false,
+                    scope: prev?.scope ?? 'default',
                     open: false,
                 }));
             }
@@ -435,7 +435,7 @@ export function AIChatProvider(props: {
         setSearchState((prev) => ({
             ask: '',
             query: prev?.query ?? null,
-            global: prev?.global ?? false,
+            scope: prev?.scope ?? 'default',
             open: false,
         }));
     }, [setSearchState]);

packages/gitbook/src/components/AIChat/AIChat.tsx

@@ -2,6 +2,7 @@
 
 import { t, tString, useLanguage } from '@/intl/client';
 import type { TranslationLanguage } from '@/intl/translations';
+import { tcls } from '@/lib/tailwind';
 import { Icon } from '@gitbook/icons';
 import React from 'react';
 import { useHotkeys } from 'react-hotkeys-hook';
@@ -65,16 +66,17 @@ export function AIChat(props: { trademark: boolean }) {
         }
     }, [chat.opened, trackEvent]);
 
-    if (!chat.opened) {
-        return null;
-    }
-
     return (
         <div
             data-testid="ai-chat"
-            className="ai-chat inset-y-0 right-0 z-40 mx-auto flex max-w-3xl animate-present scroll-mt-36 px-4 py-4 transition-all duration-300 sm:px-6 lg:fixed lg:w-80 lg:animate-enter-from-right lg:pr-4 lg:pl-0 xl:w-96"
+            className={tcls(
+                'ai-chat inset-y-0 right-0 z-40 mx-auto flex max-w-3xl scroll-mt-36 px-4 py-4 transition-[width,opacity,margin,display] transition-discrete duration-300 sm:px-6 lg:fixed lg:w-80 depth-flat:lg:p-0 lg:pr-4 lg:pl-0 xl:w-96',
+                chat.opened
+                    ? 'lg:starting:ml-0 lg:starting:w-0 lg:starting:opacity-0'
+                    : 'hidden lg:ml-0 lg:w-0! lg:opacity-0'
+            )}
         >
-            <EmbeddableFrame className="relative circular-corners:rounded-3xl rounded-corners:rounded-md depth-subtle:shadow-lg shadow-tint ring-1 ring-tint-subtle">
+            <EmbeddableFrame className="relative shrink-0 circular-corners:rounded-3xl rounded-corners:rounded-md border border-tint-subtle depth-subtle:shadow-lg shadow-tint transition-all duration-300 lg:w-76 depth-flat:lg:rounded-none depth-flat:lg:border-y-0 depth-flat:lg:border-r-0 xl:w-92">
                 <EmbeddableFrameHeader>
                     <AIChatDynamicIcon trademark={trademark} />
                     <EmbeddableFrameHeaderMain>

packages/gitbook/src/components/AIChat/AIChatButton.tsx

@@ -1,7 +1,6 @@
 'use client';
 import { useLanguage } from '@/intl/client';
 import { t } from '@/intl/translate';
-import { tcls } from '@/lib/tailwind';
 import type { Assistant } from '../AI';
 import { Button } from '../primitives';
 import { KeyboardShortcut } from '../primitives/KeyboardShortcut';
@@ -24,7 +23,7 @@ export function AIChatButton(props: {
             iconOnly={!showLabel}
             size="medium"
             variant="header"
-            className={tcls('h-9 px-2.5')}
+            className="h-9 px-2.5 @max-2xl:[&_.button-content]:hidden"
             label={
                 <div className="flex items-center gap-2">
                     {t(language, 'ai_chat_ask', assistant.label)}
@@ -38,7 +37,7 @@ export function AIChatButton(props: {
             }
             onClick={() => assistant.open()}
         >
-            {showLabel ? <span className="max-md:hidden">{t(language, 'ask')}</span> : null}
+            {showLabel ? t(language, 'ask') : null}
         </Button>
     );
 }

packages/gitbook/src/components/AIChat/AIChatIcon.tsx

@@ -1,5 +1,5 @@
 import { tcls } from '@/lib/tailwind';
-import { Icon } from '@gitbook/icons';
+import { Icon, IconStyle } from '@gitbook/icons';
 import type React from 'react';
 
 interface AIChatIconProps extends React.SVGProps<SVGSVGElement> {
@@ -9,17 +9,18 @@ interface AIChatIconProps extends React.SVGProps<SVGSVGElement> {
     trademark?: boolean;
 }
 
-export const AIChatIcon = ({
+export function AIChatIcon({
     className = 'size-4',
     size,
     trademark = true,
     state = 'default',
     ...props
-}: AIChatIconProps) => {
+}: AIChatIconProps) {
     if (!trademark) {
         return (
             <Icon
                 icon="sparkle"
+                {...props}
                 className={tcls(
                     className,
                     (state === 'thinking' || state === 'working') &&
@@ -163,4 +164,36 @@ export const AIChatIcon = ({
             </g>
         </svg>
     );
-};
+}
+
+export function AISearchIcon({
+    className = 'size-4',
+    state = 'default',
+}: Pick<AIChatIconProps, 'className' | 'state'>) {
+    return (
+        <div
+            className={tcls(
+                'relative',
+                state === 'intro' && 'animate-[fadeIn_1s_both,orbit_1s_cubic-bezier(0.16,1,0.3,1)]',
+                state === 'thinking' || state === 'working'
+                    ? 'animate-[fadeIn_1s_both,orbit_1s_ease-out,orbit_2s_1s_infinite_forwards_linear]'
+                    : ''
+            )}
+        >
+            <Icon icon="search" className={className} />
+            <Icon
+                icon="sparkle"
+                iconStyle={IconStyle.Solid}
+                className={tcls(
+                    'absolute top-[15.7%] left-[15.6%] size-[50%]',
+                    state === 'thinking' || state === 'working'
+                        ? 'animate-[spin_2s_infinite_forwards_cubic-bezier(0.16,1,0.3,1)]'
+                        : '',
+                    state === 'intro'
+                        ? 'animate-[spin_2s_.5s_forwards_cubic-bezier(0.16,1,0.3,1)]'
+                        : ''
+                )}
+            />
+        </div>
+    );
+}

packages/gitbook/src/components/AIChat/AIChatInput.tsx

@@ -140,7 +140,7 @@ export function AIChatInput(props: {
                             <span className="leading-none">
                                 {t(language, 'ai_chat_context_title')}
                             </span>
-                            <Icon icon="question-circle" className="size-3" />
+                            <Icon icon="question-circle" className="size-3 shrink-0" />
                         </div>
                     </HoverCardTrigger>
                 </HoverCardRoot>

packages/gitbook/src/components/AIChat/AIChatMessages.tsx

@@ -11,7 +11,7 @@ import { AIChatFollowupSuggestions } from './AiChatFollowupSuggestions';
 export function AIChatMessages(props: {
     chat: AIChatState;
     chatController: AIChatController;
-    lastUserMessageRef?: React.RefObject<HTMLDivElement>;
+    lastUserMessageRef?: React.RefObject<HTMLDivElement | null>;
 }) {
     const { chat, chatController, lastUserMessageRef } = props;
 
@@ -81,11 +81,19 @@ export function AIChatMessages(props: {
     );
 }
 
-function HoldMessage() {
+export function HoldMessage({
+    breakLines = false,
+    className = '',
+}: { breakLines?: boolean; className?: string }) {
     const language = useLanguage();
 
     return (
-        <div className="animate-[heightIn_500ms_4500ms_ease_both] py-2 text-tint-subtle">
+        <div
+            className={tcls(
+                'animate-[heightIn_500ms_4500ms_ease_both] overflow-hidden py-2 text-tint-subtle',
+                className
+            )}
+        >
             {tString(language, 'ai_chat_hold_message_1')
                 .split(' ')
                 .map((word, index) => (
@@ -99,6 +107,7 @@ function HoldMessage() {
                         {word}{' '}
                     </span>
                 ))}
+            {breakLines ? <br /> : null}
             {tString(language, 'ai_chat_hold_message_2')
                 .split(' ')
                 .map((word, index) => (

packages/gitbook/src/components/Adaptive/AdaptiveVisitorContextProvider.tsx

@@ -4,19 +4,14 @@ import type { GitBookSiteContext } from '@/lib/context';
 import { OpenAPIPrefillContextProvider } from '@gitbook/react-openapi';
 import * as React from 'react';
 import { createContext, useContext } from 'react';
-
-export type AdaptiveVisitorClaimsData = {
-    visitor: {
-        claims: Record<string, unknown> & { unsigned: Record<string, unknown> };
-    };
-};
+import type { AdaptiveVisitorClaims } from './types';
 
 /**
  * In-memory cache of visitor claim readers keyed by contextId.
  */
 const adaptiveVisitorReaderCache = new Map<
     string,
-    ReturnType<typeof createResourceReader<AdaptiveVisitorClaimsData | null>>
+    ReturnType<typeof createResourceReader<AdaptiveVisitorClaims | null>>
 >();
 
 function createResourceReader<T>(promise: Promise<T>) {
@@ -52,7 +47,7 @@ function getAdaptiveVisitorClaimsReader(url: string, contextId: string) {
                 if (!res.ok) {
                     return null;
                 }
-                return await res.json<AdaptiveVisitorClaimsData>();
+                return await res.json<AdaptiveVisitorClaims>();
             } catch {
                 return null;
             }
@@ -64,7 +59,7 @@ function getAdaptiveVisitorClaimsReader(url: string, contextId: string) {
     return reader;
 }
 
-export type AdaptiveVisitorContextValue = () => AdaptiveVisitorClaimsData | null;
+export type AdaptiveVisitorContextValue = () => AdaptiveVisitorClaims | null;
 
 const AdaptiveVisitorContext = createContext<AdaptiveVisitorContextValue>(() => null);
 

packages/gitbook/src/components/Adaptive/index.ts

@@ -1 +1,3 @@
+export * from './types';
+export * from './utils';
 export * from './AdaptiveVisitorContextProvider';

packages/gitbook/src/components/Adaptive/types.ts

@@ -0,0 +1,9 @@
+export type AdaptiveVisitorClaimsData = Record<string, unknown> & {
+    unsigned: Record<string, unknown>;
+};
+
+export type AdaptiveVisitorClaims = {
+    visitor: {
+        claims: AdaptiveVisitorClaimsData;
+    };
+};

packages/gitbook/src/components/Adaptive/utils.ts

@@ -0,0 +1,28 @@
+import type { Variables } from '@gitbook/api';
+import type { AdaptiveVisitorClaims } from './types';
+
+/**
+ * Return an evaluation context to evaluate expressions.
+ */
+export function createExpressionEvaluationContext(args: {
+    visitorClaims: AdaptiveVisitorClaims | null;
+    variables: {
+        space?: Variables;
+        page?: Variables;
+    };
+}) {
+    const { visitorClaims, variables } = args;
+    return {
+        ...(visitorClaims ? visitorClaims : {}),
+        space: {
+            vars: variables.space ?? {},
+        },
+        ...(variables.page
+            ? {
+                  page: {
+                      vars: variables.page ?? {},
+                  },
+              }
+            : {}),
+    };
+}

packages/gitbook/src/components/AdminToolbar/AdminToolbar.tsx

@@ -1,143 +1,63 @@
 import type { GitBookSiteContext } from '@/lib/context';
-import { Icon } from '@gitbook/icons';
-import React from 'react';
+import { AdminToolbarClient } from './AdminToolbarClient';
+import type { AdminToolbarContext } from './types';
 
-import { tcls } from '@/lib/tailwind';
-import { DateRelative } from '../primitives';
-import { IframeWrapper } from './IframeWrapper';
-import { RefreshChangeRequestButton } from './RefreshChangeRequestButton';
-import { Toolbar, ToolbarBody, ToolbarButton, ToolbarButtonGroups } from './Toolbar';
-
-interface AdminToolbarProps {
+export interface AdminToolbarProps {
     context: GitBookSiteContext;
 }
 
-function ToolbarLayout(props: { children: React.ReactNode }) {
-    return (
-        <div
-            className={tcls(
-                'fixed',
-                'bottom-5',
-                'left-1/2',
-                'z-50',
-                'transform',
-                '-translate-x-1/2',
-                'rounded-full',
-
-                'bg-tint-12/9',
-                'dark:bg-tint-1/9',
-
-                'shadow-lg',
-                'min-h-10',
-                'min-w-40',
-                'p-2',
-                'max-w-md',
-                'border-tint-12/1',
-                'backdrop-blur-md'
-            )}
-        >
-            <React.Suspense fallback={null}>{props.children}</React.Suspense>
-        </div>
-    );
-}
-
 /**
- * Toolbar with information for the content admin when previewing a revision or change-request.
+ * Server component that determines what type of toolbar to show and passes data to client component
  */
 export async function AdminToolbar(props: AdminToolbarProps) {
     const { context } = props;
 
-    if (context.changeRequest) {
-        return (
-            <IframeWrapper>
-                <ChangeRequestToolbar context={context} />
-            </IframeWrapper>
-        );
-    }
+    // Create a minimal context to avoid serializing and passing too many data to the client
+    const minimalContext: AdminToolbarContext = {
+        organizationId: context.organizationId,
+        revisionId: context.revisionId,
+        space: {
+            id: context.space.id,
+            revision: context.space.revision,
+            urls: {
+                app: context.space.urls.app,
+            },
+        },
+        changeRequest: context.changeRequest
+            ? {
+                  id: context.changeRequest.id,
+                  number: context.changeRequest.number,
+                  subject: context.changeRequest.subject,
+                  revision: context.changeRequest.revision,
+                  updatedAt: context.changeRequest.updatedAt,
+                  createdBy: {
+                      displayName: context.changeRequest.createdBy.displayName,
+                  },
+                  urls: {
+                      app: context.changeRequest.urls.app,
+                  },
+              }
+            : null,
+        revision: {
+            createdAt: context.revision.createdAt,
+            urls: {
+                app: context.revision.urls.app,
+            },
+            git: context.revision.git
+                ? {
+                      url: context.revision.git.url,
+                  }
+                : null,
+        },
+        site: {
+            id: context.site.id,
+            title: context.site.title,
+            urls: {
+                app: context.site.urls.app,
+                published: context.site.urls.published,
+            },
+        },
+    };
 
-    if (context.revisionId !== context.space.revision) {
-        return (
-            <IframeWrapper>
-                <RevisionToolbar context={context} />
-            </IframeWrapper>
-        );
-    }
-
-    return null;
-}
-
-async function ChangeRequestToolbar(props: { context: GitBookSiteContext }) {
-    const { context } = props;
-    const { space, changeRequest } = context;
-
-    if (!changeRequest) {
-        return null;
-    }
-
-    return (
-        <ToolbarLayout>
-            <Toolbar>
-                <ToolbarButton title="Open in application" href={changeRequest.urls.app}>
-                    <Icon icon="code-branch" className="size-4" />
-                </ToolbarButton>
-                <ToolbarBody>
-                    <p>
-                        #{changeRequest.number}: {changeRequest.subject ?? 'No subject'}
-                    </p>
-                    <p className="text-tint-2 text-xs dark:text-tint-11">
-                        Change request updated <DateRelative value={changeRequest.updatedAt} />
-                    </p>
-                </ToolbarBody>
-                <ToolbarButtonGroups>
-                    <ToolbarButton title="Open in application" href={changeRequest.urls.app}>
-                        <Icon icon="arrow-up-right-from-square" className="size-4" />
-                    </ToolbarButton>
-                    <RefreshChangeRequestButton
-                        spaceId={space.id}
-                        changeRequestId={changeRequest.id}
-                        revisionId={changeRequest.revision}
-                        updatedAt={new Date(changeRequest.updatedAt).getTime()}
-                    />
-                </ToolbarButtonGroups>
-            </Toolbar>
-        </ToolbarLayout>
-    );
-}
-
-async function RevisionToolbar(props: { context: GitBookSiteContext }) {
-    const { context } = props;
-    const { revision } = context;
-
-    return (
-        <ToolbarLayout>
-            <Toolbar>
-                <ToolbarButton title="Open in application" href={revision.urls.app}>
-                    <Icon icon="code-commit" className="size-4" />
-                </ToolbarButton>
-                <ToolbarBody>
-                    <p>
-                        Revision created <DateRelative value={revision.createdAt} />
-                    </p>
-                    {revision.git ? (
-                        <p className="text-tint-2 text-xs dark:text-tint-11">
-                            {revision.git.message}
-                        </p>
-                    ) : null}
-                </ToolbarBody>
-                <ToolbarButtonGroups>
-                    <ToolbarButton title="Open in application" href={revision.urls.app}>
-                        <Icon icon="arrow-up-right-from-square" className="size-4" />
-                    </ToolbarButton>
-                    {revision.git?.url ? (
-                        <ToolbarButton title="Open git commit" href={revision.git.url}>
-                            <Icon
-                                icon={revision.git.url.includes('github.com') ? 'github' : 'gitlab'}
-                                className="size-4"
-                            />
-                        </ToolbarButton>
-                    ) : null}
-                </ToolbarButtonGroups>
-            </Toolbar>
-        </ToolbarLayout>
-    );
+    return <AdminToolbarClient context={minimalContext} />;
 }

packages/gitbook/src/components/AdminToolbar/AdminToolbarClient.tsx

@@ -0,0 +1,391 @@
+'use client';
+import { Icon } from '@gitbook/icons';
+import { MotionConfig } from 'motion/react';
+import { useCheckForContentUpdate } from '../AutoRefreshContent';
+import { useVisitorSession } from '../Insights';
+import { useCurrentPagePath } from '../hooks';
+import { DateRelative } from '../primitives';
+import { HideToolbarButton } from './HideToolbarButton';
+import { IframeWrapper } from './IframeWrapper';
+import { RefreshContentButton } from './RefreshContentButton';
+import {
+    Toolbar,
+    ToolbarBody,
+    ToolbarButton,
+    ToolbarButtonGroup,
+    type ToolbarButtonProps,
+    ToolbarSeparator,
+    ToolbarSubtitle,
+    ToolbarTitle,
+} from './Toolbar';
+import {
+    type ToolbarControlsContextValue,
+    ToolbarControlsProvider,
+} from './ToolbarControlsContext';
+import type { AdminToolbarClientProps, AdminToolbarContext } from './types';
+import { useToolbarVisibility } from './utils';
+
+export function AdminToolbarClient(props: AdminToolbarClientProps) {
+    const { context, onPersistentClose, onSessionClose, onToggleMinify } = props;
+    const {
+        minified,
+        setMinified,
+        shouldAutoExpand,
+        hidden,
+        minimize,
+        closeSession,
+        closePersistent,
+    } = useToolbarVisibility({
+        onPersistentClose,
+        onSessionClose,
+        onToggleMinify,
+    });
+
+    const visitorSession = useVisitorSession();
+
+    const toolbarControls: ToolbarControlsContextValue = {
+        minimize,
+        closeSession,
+        closePersistent,
+        shouldAutoExpand,
+    };
+
+    if (hidden) {
+        return null;
+    }
+
+    // If there is a change request, show the change request toolbar
+    if (context.changeRequest) {
+        return (
+            <ToolbarControlsWrapper value={toolbarControls}>
+                <ChangeRequestToolbar
+                    context={context}
+                    minified={minified}
+                    onMinifiedChange={setMinified}
+                />
+            </ToolbarControlsWrapper>
+        );
+    }
+
+    // If the revision is not the current revision, the user is looking at a previous version of the site, so show the revision toolbar
+    if (context.revisionId !== context.space.revision) {
+        return (
+            <ToolbarControlsWrapper value={toolbarControls}>
+                <RevisionToolbar
+                    context={context}
+                    minified={minified}
+                    onMinifiedChange={setMinified}
+                />
+            </ToolbarControlsWrapper>
+        );
+    }
+
+    // If the user is authenticated and part of the organization owning this site, show the authenticated user toolbar
+    if (visitorSession?.organizationId === context.organizationId) {
+        return (
+            <ToolbarControlsWrapper value={toolbarControls}>
+                <AuthenticatedUserToolbar
+                    context={context}
+                    minified={minified}
+                    onMinifiedChange={setMinified}
+                />
+            </ToolbarControlsWrapper>
+        );
+    }
+
+    return null;
+}
+
+/**
+ * Reusable wrapper that provides tooling and containers that are used by all types of toolbar views.
+ */
+export function ToolbarControlsWrapper(
+    props: React.PropsWithChildren<{ value: ToolbarControlsContextValue | null }>
+) {
+    const { children, value } = props;
+    return (
+        <ToolbarControlsProvider value={value}>
+            <IframeWrapper>
+                <MotionConfig reducedMotion="user">{children}</MotionConfig>
+            </IframeWrapper>
+        </ToolbarControlsProvider>
+    );
+}
+
+interface ToolbarViewProps {
+    context: AdminToolbarContext;
+    minified: boolean;
+    onMinifiedChange: (value: boolean) => void;
+}
+
+function ChangeRequestToolbar(props: ToolbarViewProps) {
+    const { context, minified, onMinifiedChange } = props;
+    const { changeRequest, site } = context;
+    if (!changeRequest) {
+        throw new Error('Change request is not set');
+    }
+
+    const author = changeRequest.createdBy.displayName;
+
+    const { refreshForUpdates, updated } = useCheckForContentUpdate({
+        revisionId: changeRequest.revision,
+    });
+
+    return (
+        <Toolbar minified={minified} onMinifiedChange={onMinifiedChange} label="Site preview">
+            <ToolbarBody>
+                <ToolbarTitle
+                    prefix={`Change #${changeRequest.number}:`}
+                    suffix={`${changeRequest.subject || 'Untitled'}`}
+                />
+                <ToolbarSubtitle
+                    subtitle={
+                        <>
+                            <DateRelative value={changeRequest.updatedAt} /> by {author}
+                        </>
+                    }
+                />
+            </ToolbarBody>
+
+            <ToolbarSeparator />
+
+            <ToolbarActions>
+                {/* Refresh to retrieve latest changes */}
+                {updated ? <RefreshContentButton refreshForUpdates={refreshForUpdates} /> : null}
+
+                {/* Edit in GitBook */}
+                <EditPageButton href={changeRequest.urls.app} siteId={site.id} />
+
+                {/* Comment in app */}
+                <ToolbarButton
+                    title="Comment in a GitBook"
+                    href={getToolbarHref({
+                        href: `${changeRequest.urls.app}~/comments`,
+                        siteId: site.id,
+                        buttonId: 'comment',
+                    })}
+                    icon="comment"
+                />
+
+                {/* Open published/live site */}
+                {site.urls.published ? (
+                    <ToolbarButton
+                        title="Open live site"
+                        href={getToolbarHref({
+                            href: site.urls.published,
+                            siteId: site.id,
+                            buttonId: 'production-site',
+                        })}
+                        icon="globe"
+                    />
+                ) : null}
+
+                {/* Open CR in GitBook */}
+                <ToolbarButton
+                    title="View change request in GitBook"
+                    href={getToolbarHref({
+                        href: changeRequest.urls.app,
+                        siteId: site.id,
+                        buttonId: 'change-request',
+                    })}
+                    icon="code-pull-request"
+                />
+            </ToolbarActions>
+        </Toolbar>
+    );
+}
+
+function RevisionToolbar(props: ToolbarViewProps) {
+    const { context, minified, onMinifiedChange } = props;
+    const { revision, site } = context;
+    if (!revision) {
+        throw new Error('Revision is not set');
+    }
+
+    const gitURL = revision.git?.url;
+    const isGitHub = gitURL?.includes('github.com');
+    const gitProvider = isGitHub ? 'GitHub' : 'GitLab';
+
+    return (
+        <Toolbar minified={minified} onMinifiedChange={onMinifiedChange} label="Site preview">
+            <ToolbarBody>
+                <ToolbarTitle prefix="Site version" suffix={context.site.title} />
+                <ToolbarSubtitle
+                    subtitle={
+                        <>
+                            Created <DateRelative value={revision.createdAt} />
+                        </>
+                    }
+                />
+            </ToolbarBody>
+            <ToolbarSeparator />
+            <ToolbarActions>
+                {/* Open commit in Git client */}
+                <ToolbarButton
+                    title={
+                        gitURL ? (
+                            `Open commit in ${gitProvider}`
+                        ) : (
+                            <div className="flex items-center gap-2">
+                                Setup GitSync to edit using Git{' '}
+                                <div className="flex items-center gap-1 text-neutral-8 text-xs hover:text-neutral-6 hover:underline dark:text-neutral-3">
+                                    <a
+                                        href="https://gitbook.com/docs/getting-started/git-sync"
+                                        target="_blank"
+                                        rel="noopener noreferrer"
+                                        className=""
+                                        onClick={(e) => e.stopPropagation()}
+                                    >
+                                        Learn more
+                                    </a>
+                                    <Icon icon="arrow-up-right" className="size-3" />
+                                </div>
+                            </div>
+                        )
+                    }
+                    href={gitURL}
+                    disabled={!gitURL}
+                    icon={gitURL ? (isGitHub ? 'github' : 'gitlab') : 'github'}
+                />
+                {site.urls.published ? (
+                    <ToolbarButton
+                        title="Open live site"
+                        href={getToolbarHref({
+                            href: site.urls.published,
+                            siteId: site.id,
+                            buttonId: 'production-site',
+                        })}
+                        icon="globe"
+                    />
+                ) : null}
+                <ToolbarButton
+                    title="View this revision in GitBook"
+                    href={getToolbarHref({
+                        href: revision.urls.app,
+                        siteId: site.id,
+                        buttonId: 'revision',
+                    })}
+                    icon="code-commit"
+                />
+            </ToolbarActions>
+        </Toolbar>
+    );
+}
+
+function AuthenticatedUserToolbar(props: ToolbarViewProps) {
+    const { context, minified, onMinifiedChange } = props;
+    const { revision, space, site } = context;
+    const { refreshForUpdates, updated } = useCheckForContentUpdate({
+        revisionId: space.revision,
+    });
+
+    return (
+        <Toolbar
+            minified={minified}
+            onMinifiedChange={onMinifiedChange}
+            label="Only visible to your GitBook organization"
+        >
+            <ToolbarBody>
+                <ToolbarTitle suffix={context.site.title} />
+                <ToolbarSubtitle
+                    subtitle={
+                        <>
+                            Updated <DateRelative value={revision.createdAt} />
+                        </>
+                    }
+                />
+            </ToolbarBody>
+            <ToolbarSeparator />
+            <ToolbarActions>
+                {/* Refresh to retrieve latest changes */}
+                {updated ? <RefreshContentButton refreshForUpdates={refreshForUpdates} /> : null}
+
+                {/* Edit in GitBook */}
+                <EditPageButton href={space.urls.app} siteId={site.id} />
+
+                {/* Open site in GitBook */}
+                <ToolbarButton
+                    title="Open site in GitBook"
+                    href={getToolbarHref({
+                        href: site.urls.app,
+                        siteId: site.id,
+                        buttonId: 'site',
+                    })}
+                    icon="gears"
+                />
+
+                {/* Customize in GitBook */}
+                <ToolbarButton
+                    title="Customize in GitBook"
+                    href={getToolbarHref({
+                        href: `${site.urls.app}/customization/general`,
+                        siteId: site.id,
+                        buttonId: 'customize',
+                    })}
+                    icon="palette"
+                />
+
+                {/* Open insights in GitBook */}
+                <ToolbarButton
+                    title="Open insights in GitBook"
+                    href={getToolbarHref({
+                        href: `${site.urls.app}/insights`,
+                        siteId: site.id,
+                        buttonId: 'insights',
+                    })}
+                    icon="chart-simple"
+                />
+            </ToolbarActions>
+        </Toolbar>
+    );
+}
+
+function ToolbarActions(props: { children: React.ReactNode }) {
+    const { children } = props;
+
+    return (
+        <ToolbarButtonGroup>
+            {children}
+            <HideToolbarButton />
+        </ToolbarButtonGroup>
+    );
+}
+
+function EditPageButton(props: {
+    href: string;
+    siteId: string;
+    motionValues?: ToolbarButtonProps['motionValues'];
+}) {
+    const { href, motionValues, siteId } = props;
+    const pagePath = useCurrentPagePath();
+
+    return (
+        <ToolbarButton
+            title="Edit in GitBook"
+            href={getToolbarHref({
+                href: `${href}${pagePath.startsWith('/') ? pagePath.slice(1) : pagePath}`,
+                siteId,
+                buttonId: 'edit',
+            })}
+            icon="pencil"
+            motionValues={motionValues}
+        />
+    );
+}
+
+/**
+ * Append utm parameters to a URL to track usage of the toolbar.
+ */
+function getToolbarHref({
+    href,
+    siteId,
+    buttonId,
+}: { href: string; siteId: string; buttonId: string }) {
+    const url = new URL(href);
+    url.searchParams.set('utm_source', 'content');
+    url.searchParams.set('utm_medium', 'toolbar');
+    url.searchParams.set('utm_campaign', siteId);
+    url.searchParams.set('utm_content', buttonId);
+
+    return url.toString();
+}

packages/gitbook/src/components/AdminToolbar/AnimatedLogo.module.css

@@ -0,0 +1,185 @@
+.svgLogo {
+  --logo-fill: var(--color-neutral-100);
+  --seg-A-color: #2782c4;
+  --seg-B-color: #43b7f2;
+  --seg-C-color: #8be2ff;
+  --trace-color: #46474c;
+
+
+  --T: 2s;
+  shape-rendering: geometricPrecision;
+  vector-effect: non-scaling-stroke;
+}
+
+.static .trace {
+  animation: none;
+  fill: var(--logo-fill);
+  stroke: none;
+}
+
+.static .seg {
+  animation: none;
+  opacity: 0;
+}
+
+/* Base segment animation */
+.seg {
+  opacity: 0;
+  animation: segFade var(--T) ease both 0.06s, segAMove var(--T) linear,
+    segALen var(--T) linear;
+    animation-delay: 0.06s;
+  animation-fill-mode: forwards;
+}
+
+.segA {
+  animation-name: segFade, segAMove, segALen;
+}
+
+.segB {
+  animation-name: segFade, segBMove, segBLen;
+}
+
+.segC {
+  animation-name: segFade, segCMove, segCLen;
+}
+
+.trace {
+  animation: traceFill var(--T) ease both 0.06s;
+  animation-fill-mode: forwards;
+}
+
+@keyframes traceFill {
+  0% {
+    fill: transparent;
+    stroke:var(--trace-color);
+  }
+  95% {
+    fill: transparent;
+    stroke:var(--trace-color);
+  }
+  100% {
+    fill: var(--logo-fill);
+    stroke:none;
+  }
+}
+
+
+/* Segment A animation */
+@keyframes segAMove {
+  0% {
+    stroke-dashoffset: 0;
+    stroke: var(--seg-A-color);
+  }
+  50% {
+    stroke-dashoffset: -0.5;
+    stroke: var(--seg-A-color);
+  }
+  95% {
+    stroke-dashoffset: -1;
+  }
+  100% {
+    stroke-dashoffset: 0;
+    stroke: none;
+  }
+}
+
+@keyframes segALen {
+  0% {
+    stroke-dasharray: 0.18 0.82;
+  }
+  95% {
+    stroke-dasharray: 0.22 0.78;
+  }
+  100% {
+    stroke-dasharray: 1;
+  }
+}
+
+/* Segment B animation */
+@keyframes segBMove {
+  0% {
+    stroke-dashoffset: -0.18;
+    stroke: var(--seg-B-color);
+  }
+  50% {
+    stroke-dashoffset: -0.72;
+    stroke: var(--seg-B-color);
+  }
+  95% {
+    stroke-dashoffset: -1.18;
+    stroke: var(--seg-B-color);
+  }
+  100% {
+    stroke-dashoffset: 0;
+    stroke: none;
+  }
+}
+
+@keyframes segBLen {
+  0%,
+  50%,
+  95% {
+    stroke-dasharray: 0.2 0.8;
+  }
+  100% {
+    stroke-dasharray: 1;
+  }
+}
+
+/* Segment C animation */
+@keyframes segCMove {
+  0% {
+    stroke-dashoffset: -0.38;
+    stroke: var(--seg-C-color);
+  }
+  50% {
+    stroke-dashoffset: -0.92;
+    stroke: var(--seg-C-color);
+  }
+  95% {
+    stroke-dashoffset: -1.38;
+    stroke: var(--seg-C-color);
+  }
+  100% {
+    stroke-dashoffset: 0;
+    stroke: none;
+  }
+}
+
+@keyframes segCLen {
+  0% {
+    stroke-dasharray: 0.22 0.78;
+  }
+  95% {
+    stroke-dasharray: 0.18 0.82;
+  }
+  100% {
+    stroke-dasharray: 1;
+  }
+}
+
+/* Segment fade animation - stays visible at end */
+@keyframes segFade {
+  0% {
+    opacity: 0;
+  }
+  10% {
+    opacity: 1;
+  }
+  100% {
+    opacity: 1;
+  }
+}
+
+/* Reduced motion support */
+@media (prefers-reduced-motion: reduce) {
+  .seg {
+    animation: none;
+    opacity: 0;
+  }
+  .trace {
+    animation: none;
+    fill: var(--logo-fill);
+    stroke:none;
+  }
+}

packages/gitbook/src/components/AdminToolbar/AnimatedLogo.tsx

@@ -0,0 +1,68 @@
+import { tcls } from '@/lib/tailwind';
+import type React from 'react';
+import styles from './AnimatedLogo.module.css';
+
+interface AnimatedLogoProps {
+    shouldAnimate?: boolean;
+}
+
+export const AnimatedLogo: React.FC<AnimatedLogoProps> = (props) => {
+    const { shouldAnimate = true } = props;
+
+    return (
+        <svg
+            className={tcls(styles.svgLogo, shouldAnimate ? undefined : styles.static)}
+            width="28"
+            height="28"
+            viewBox="0 0 28 28"
+            aria-hidden="true"
+        >
+            {/* Background trace */}
+            <path
+                d={dPath}
+                transform="translate(14,14) scale(0.4)"
+                strokeWidth={3}
+                pathLength={1}
+                strokeLinecap="round"
+                className={styles.trace}
+            />
+            {/* Three individual paths to create the 'chasing' segmented stroke effect */}
+            <path
+                className={tcls(styles.seg, styles.segA)}
+                d={dPath}
+                transform="translate(14,14) scale(0.4)"
+                fill="none"
+                strokeWidth={3}
+                pathLength={1}
+                strokeLinecap="round"
+                strokeDasharray="0.18 0.82"
+                strokeDashoffset={0}
+            />
+            <path
+                className={tcls(styles.seg, styles.segB)}
+                d={dPath}
+                transform="translate(14,14) scale(0.4)"
+                fill="none"
+                strokeWidth={3}
+                pathLength={1}
+                strokeLinecap="round"
+                strokeDasharray="0.20 0.80"
+                strokeDashoffset={-0.18}
+            />
+            <path
+                className={tcls(styles.seg, styles.segC)}
+                d={dPath}
+                transform="translate(14,14) scale(0.4)"
+                fill="none"
+                strokeWidth={3}
+                pathLength={1}
+                strokeLinecap="round"
+                strokeDasharray="0.22 0.78"
+                strokeDashoffset={-0.38}
+            />
+        </svg>
+    );
+};
+
+const dPath =
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packages/gitbook/src/components/AdminToolbar/HideToolbarButton.tsx

@@ -0,0 +1,233 @@
+'use client';
+import { tcls } from '@/lib/tailwind';
+import { Icon, type IconName, IconStyle } from '@gitbook/icons';
+import { motion } from 'motion/react';
+import React, { useRef } from 'react';
+import { useOnClickOutside } from 'usehooks-ts';
+import { ToolbarButton, type ToolbarButtonProps } from './Toolbar';
+import styles from './Toolbar.module.css';
+import { useToolbarControls } from './ToolbarControlsContext';
+
+const ARC_DURATION_SECONDS = 0.4;
+const ARC_STAGGER_MS = 80;
+const BASE_ROTATION_DEG = 95;
+const ROTATION_STEP_DEG = 18;
+
+interface HideToolbarButtonProps {
+    motionValues?: ToolbarButtonProps['motionValues'];
+}
+
+/**
+ * Hide menu trigger. Expands a macOS Dock-like submenu with 3 labeled actions.
+ */
+export function HideToolbarButton(props: HideToolbarButtonProps) {
+    const { motionValues } = props;
+    const [open, setOpen] = React.useState(false);
+    const controls = useToolbarControls();
+
+    const ref = useRef<HTMLDivElement>(null);
+    const buttonRef = useRef<HTMLDivElement>(null);
+
+    const handleClickOutsideArcMenu = (event: Event) => {
+        // Don't close the arc if we are clicking on the button itself
+        if (buttonRef.current?.contains(event.target as Node)) {
+            return;
+        }
+        setOpen(false);
+    };
+    // @ts-expect-error wrong type for ref
+    useOnClickOutside(ref, handleClickOutsideArcMenu);
+
+    // Close arc menu on scroll
+    React.useEffect(() => {
+        if (!open) return;
+
+        const handleScroll = () => setOpen(false);
+        window.addEventListener('scroll', handleScroll, { passive: true });
+
+        return () => window.removeEventListener('scroll', handleScroll);
+    }, [open]);
+
+    const items = [
+        controls?.minimize
+            ? {
+                  id: 'minimize',
+                  icon: 'minus',
+                  label: 'Minimize',
+                  onClick: controls.minimize,
+              }
+            : null,
+        controls?.closeSession
+            ? {
+                  id: 'session-close',
+                  icon: 'xmark',
+                  label: 'Close for one session',
+                  onClick: controls.closeSession,
+              }
+            : null,
+        controls?.closePersistent
+            ? {
+                  id: 'persistent-close',
+                  icon: 'ban',
+                  label: "Don't show again",
+                  onClick: controls.closePersistent,
+              }
+            : null,
+    ].filter(Boolean) as Array<ArcMenuItem>;
+
+    const sharedMotionStyle = motionValues
+        ? {
+              x: motionValues.x,
+          }
+        : undefined;
+
+    return (
+        <ToolbarButton
+            ref={buttonRef}
+            title={open ? 'Hide options' : 'Hide toolbar'}
+            onClick={() => {
+                setOpen((v) => !v);
+            }}
+            motionValues={motionValues}
+            icon="eye-slash"
+        >
+            {/* Expanding arc menu */}
+            {open && (
+                <motion.div
+                    className={tcls('pointer-events-none absolute inset-0', styles.arcMenu)}
+                    style={sharedMotionStyle as React.CSSProperties | undefined}
+                >
+                    <div
+                        className={tcls(
+                            'pointer-events-none absolute left-0 overflow-visible',
+                            styles.arcMenuPath
+                        )}
+                        ref={ref}
+                    >
+                        {items.map((item, index) => (
+                            <ArcToolbarButton
+                                index={index}
+                                staggerIndex={items.length - 1 - index}
+                                key={item.icon}
+                                {...item}
+                                onClick={() => {
+                                    setOpen(false);
+                                    item.onClick?.();
+                                }}
+                            />
+                        ))}
+                    </div>
+                </motion.div>
+            )}
+        </ToolbarButton>
+    );
+}
+
+type ArcMenuItem = {
+    id: string;
+    icon: IconName;
+    label: string;
+    description: string;
+    onClick?: () => void;
+};
+
+type ArcToolbarButtonProps = Pick<ArcMenuItem, 'label' | 'icon' | 'onClick'> & {
+    index: number;
+    staggerIndex?: number;
+    disabled?: boolean;
+    className?: string;
+    iconClassName?: string;
+};
+
+export function ArcToolbarButton(props: ArcToolbarButtonProps) {
+    const {
+        index,
+        staggerIndex = index,
+        label,
+        disabled,
+        className,
+        onClick = () => {},
+        icon,
+        iconClassName,
+    } = props;
+
+    const targetOffset = `calc(var(--start-distance) + ${index} * var(--spread-distance))`;
+
+    // Calculate rotation based on position along the arc
+    const calculateRotation = () => {
+        return BASE_ROTATION_DEG - index * ROTATION_STEP_DEG;
+    };
+
+    const itemRotation = calculateRotation();
+
+    return (
+        <div className="pointer-events-none">
+            <button
+                type="button"
+                onClick={() => {
+                    onClick();
+                }}
+                style={
+                    {
+                        '--target-offset-distance': targetOffset,
+                        '--arc-duration': `${ARC_DURATION_SECONDS}s`,
+                        '--arc-delay': `${(staggerIndex ?? 0) * ARC_STAGGER_MS}ms`,
+                        '--rotation-offset': `${itemRotation}deg`,
+                        offsetPath: 'border-box',
+                        offsetDistance: targetOffset,
+                        offsetAnchor: '0% 40%',
+                        offsetRotate: `auto ${itemRotation}deg`,
+                    } as React.CSSProperties
+                }
+                className={tcls(
+                    'group',
+                    'absolute',
+                    'top-0',
+                    'left-0',
+                    'w-40',
+                    'opacity-0',
+                    'pointer-events-auto',
+                    'flex',
+                    'items-center',
+                    'gap-2',
+                    styles.arcMenuItem,
+                    className
+                )}
+            >
+                <div
+                    className={tcls(
+                        'flex shrink-0 items-center justify-center gap-1',
+                        'h-8 w-8 rounded-full border',
+                        'truncate text-sm',
+                        'cursor-pointer transition-colors',
+                        'group-hover:-rotate-5 group-hover:scale-105',
+                        disabled ? 'cursor-not-allowed opacity-50' : '',
+                        'text-tint-1 dark:text-tint-12',
+                        'bg-[linear-gradient(110deg,rgba(51,53,57,1)_0%,rgba(50,52,56,1)_100%)]',
+                        'dark:[background:linear-gradient(110deg,rgba(255,255,255,1)_0%,rgba(240,246,248,1)_100%)]',
+                        'border border-solid dark:border-[rgba(256,_256,_256,_0.06)]'
+                    )}
+                    style={{
+                        background: 'linear-gradient(rgb(51, 53, 57), rgb(50, 52, 56))',
+                    }}
+                >
+                    <Icon
+                        icon={icon as IconName}
+                        iconStyle={IconStyle.Solid}
+                        className={tcls('size-4 shrink-0 group-hover:scale-110', iconClassName)}
+                    />
+                </div>
+                <span
+                    className={tcls(
+                        'whitespace-nowrap rounded-lg px-3 py-1 font-normal text-sm transition-transform',
+                        'group-hover:rotate-2 group-hover:scale-105',
+                        'text-neutral-1 dark:text-neutral-12',
+                        'bg-[linear-gradient(110deg,rgba(51,53,57,1)_0%,rgba(50,52,56,1)_100%)]'
+                    )}
+                >
+                    {label}
+                </span>
+            </button>
+        </div>
+    );
+}

packages/gitbook/src/components/AdminToolbar/RefreshChangeRequestButton.tsx

@@ -1,70 +0,0 @@
-'use client';
-import { Icon } from '@gitbook/icons';
-import React from 'react';
-
-import { useCheckForContentUpdate } from '@/components/AutoRefreshContent';
-import { tcls } from '@/lib/tailwind';
-
-import { ToolbarButton } from './Toolbar';
-
-// We don't show the button if the content has been updated 30s ago or less.
-const minInterval = 1000 * 30; // 5 minutes
-
-/**
- * Button to refresh the page if the content has been updated.
- */
-export function RefreshChangeRequestButton(props: {
-    spaceId: string;
-    changeRequestId: string;
-    revisionId: string;
-    updatedAt: number;
-}) {
-    const { updatedAt } = props;
-
-    const [visible, setVisible] = React.useState(false);
-    const [loading, setLoading] = React.useState(false);
-    const checkForUpdates = useCheckForContentUpdate(props);
-
-    const refresh = React.useCallback(async () => {
-        setLoading(true);
-        try {
-            await checkForUpdates();
-        } finally {
-            setLoading(false);
-            setVisible(false);
-        }
-    }, [checkForUpdates]);
-
-    // Show the button if the content has been updated more than 30s ago.
-    React.useEffect(() => {
-        if (updatedAt < Date.now() - minInterval) {
-            setVisible(true);
-        }
-    }, [updatedAt]);
-
-    // 30sec after being hidden, we show the button again
-    React.useEffect(() => {
-        if (!visible) {
-            const timeout = setTimeout(() => {
-                setVisible(true);
-            }, minInterval);
-            return () => clearTimeout(timeout);
-        }
-    }, [visible]);
-
-    if (!visible) {
-        return null;
-    }
-
-    return (
-        <ToolbarButton
-            title="Refresh"
-            onClick={(event) => {
-                event.preventDefault();
-                refresh();
-            }}
-        >
-            <Icon icon="rotate" className={tcls('size-4', loading ? 'animate-spin' : null)} />
-        </ToolbarButton>
-    );
-}

packages/gitbook/src/components/AdminToolbar/RefreshContentButton.tsx

@@ -0,0 +1,42 @@
+'use client';
+import React from 'react';
+
+import { ToolbarButton, type ToolbarButtonProps } from './Toolbar';
+
+/**
+ * Button to refresh the page if the content has been updated.
+ */
+export function RefreshContentButton(props: {
+    refreshForUpdates: () => Promise<void>;
+    motionValues?: ToolbarButtonProps['motionValues'];
+}) {
+    const { refreshForUpdates, motionValues } = props;
+
+    const [loading, setLoading] = React.useState(false);
+
+    const refresh = React.useCallback(async () => {
+        setLoading(true);
+        try {
+            await refreshForUpdates();
+        } finally {
+            setLoading(false);
+        }
+    }, [refreshForUpdates]);
+
+    return (
+        <ToolbarButton
+            title="Refresh for latest changes"
+            onClick={(event) => {
+                if (loading) {
+                    return;
+                }
+                event.preventDefault();
+                refresh();
+            }}
+            disabled={loading}
+            motionValues={motionValues}
+            icon="rotate"
+            iconClassName={loading ? 'animate-spin' : undefined}
+        />
+    );
+}

packages/gitbook/src/components/AdminToolbar/Toolbar.module.css

@@ -0,0 +1,40 @@
+.arcMenu {
+    --arc-width: 505px;
+    --arc-height: 400px;
+    --arc-radius: 34%;
+    --start-distance: -240px;
+    --spread-distance: 45px;
+}
+
+.arcMenuPath {
+    bottom: calc(var(--arc-height) / -2);
+    width: var(--arc-width);
+    height: var(--arc-height);
+    border-radius: var(--arc-radius);
+    transform: translate(0%, 0%);
+}
+
+.arcMenuItem {
+    animation-name: hide-toolbar-arc-enter;
+    animation-timing-function: cubic-bezier(0.22, 1, 0.36, 1);
+    animation-fill-mode: forwards;
+    animation-duration: var(--arc-duration, 0.4s);
+    animation-delay: var(--arc-delay, 0s);
+    transform-origin: center left;
+    offset-path: border-box;
+    offset-anchor: 0% 0%;
+    offset-rotate: auto var(--rotation-offset, 0deg);
+}
+
+@keyframes hide-toolbar-arc-enter {
+    from {
+        offset-distance: var(--start-distance);
+        transform: scale(0.5);
+        opacity: 0;
+    }
+    to {
+        offset-distance: var(--target-offset-distance);
+        transform: scale(1);
+        opacity: 1;
+    }
+}

packages/gitbook/src/components/AdminToolbar/Toolbar.tsx

@@ -1,65 +1,347 @@
 'use client';
-
-import type * as React from 'react';
+import {
+    AnimatePresence,
+    type MotionValue,
+    motion,
+    useReducedMotion,
+    useSpring,
+} from 'motion/react';
+import React, { isValidElement } from 'react';
+import { AnimatedLogo } from './AnimatedLogo';
+import { useToolbarControls } from './ToolbarControlsContext';
 
 import { tcls } from '@/lib/tailwind';
+import { Icon, type IconName, IconStyle } from '@gitbook/icons';
+import { Tooltip } from '../primitives';
+import { getCopyVariants, toolbarEasings } from './transitions';
+import { useMagnificationEffect } from './useMagnificationEffect';
 
-export function Toolbar(props: { children: React.ReactNode }) {
-    const { children } = props;
+const DURATION_LOGO_APPEARANCE = 2000;
+const DELAY_BETWEEN_LOGO_AND_CONTENT = 100;
+
+interface ToolbarProps {
+    label: React.ReactNode;
+    children: React.ReactNode;
+    minified: boolean;
+    onMinifiedChange: (value: boolean) => void;
+}
+
+export function Toolbar(props: ToolbarProps) {
+    const { children, label, minified, onMinifiedChange } = props;
+    const controls = useToolbarControls();
+    const [isReady, setIsReady] = React.useState(false);
+    const autoExpandTriggeredRef = React.useRef(false);
+
+    const shouldAutoExpand = Boolean(controls?.shouldAutoExpand);
+    const [shouldAnimateLogo, setShouldAnimateLogo] = React.useState(shouldAutoExpand);
+
+    // Wait for page to be ready, then show the toolbar
+    React.useEffect(() => {
+        const handleLoad = () => {
+            setIsReady(true);
+        };
+
+        if (document.readyState === 'complete') {
+            handleLoad();
+        } else {
+            window.addEventListener('load', handleLoad);
+            return () => window.removeEventListener('load', handleLoad);
+        }
+    }, []);
+
+    // After toolbar appears, wait, then show the full content
+    React.useEffect(() => {
+        if (!isReady || autoExpandTriggeredRef.current) {
+            return;
+        }
+
+        if (!shouldAutoExpand) {
+            // When we already know the toolbar should stay expanded (e.g. the user previously
+            // opened it this session) we short-circuit the auto-expand animation and immediately
+            // render the expanded state without replaying the logo animation.
+            autoExpandTriggeredRef.current = true;
+            setShouldAnimateLogo(false);
+            return;
+        }
+
+        autoExpandTriggeredRef.current = true;
+
+        // On a fresh session we let the toolbar appear in its compact form, play the logo
+        // animation, and only then expand the toolbar. The timeout mirrors the duration of the
+        // logo animation so both transitions feel connected.
+        const expandAfterTimeout = setTimeout(() => {
+            setShouldAnimateLogo(false);
+            onMinifiedChange(false);
+        }, DURATION_LOGO_APPEARANCE + DELAY_BETWEEN_LOGO_AND_CONTENT);
+
+        return () => clearTimeout(expandAfterTimeout);
+    }, [isReady, onMinifiedChange, shouldAutoExpand]);
+
+    React.useEffect(() => {
+        if (!minified) {
+            // Any manual expansion should stop the logo animation so the icon stays in its
+            // “settled” state once the toolbar is open.
+            setShouldAnimateLogo(false);
+        }
+    }, [minified]);
+
+    // Don't render anything until page is ready
+    if (!isReady) {
+        return null;
+    }
 
     return (
-        <div
-            className={tcls(
-                'flex',
-                'flex-row',
-                'items-center',
-                'gap-4',
-                'text-sm',
-                'px-4',
-                'py-1',
-                'rounded-full',
-                'truncate',
-                'text-tint-1',
-                'dark:text-tint-12'
-            )}
-        >
-            {children}
-        </div>
+        <Tooltip label={label}>
+            <motion.div className="-translate-x-1/2 fixed bottom-5 left-1/2 z-40 w-auto max-w-xl transform px-4">
+                <AnimatePresence mode="wait">
+                    <motion.div
+                        onClick={() => {
+                            if (minified) {
+                                setShouldAnimateLogo(false);
+                                onMinifiedChange(false);
+                            }
+                        }}
+                        layout
+                        transition={toolbarEasings.spring}
+                        className={tcls(
+                            minified ? 'cursor-pointer px-2' : 'pr-2 pl-3.5',
+                            'flex',
+                            'items-center',
+                            'justify-center',
+                            'min-h-11',
+                            'min-w-12',
+                            'h-12',
+                            'py-2',
+                            'backdrop-blur-sm',
+                            'origin-center',
+                            'border-[0.5px] border-neutral-5 border-solid dark:border-neutral-8',
+                            'bg-[linear-gradient(45deg,rgba(39,39,39,0.8)_100%,rgba(39,39,39,0.4)_80%)]',
+                            'dark:bg-[linear-gradient(45deg,rgba(39,39,39,0.5)_100%,rgba(39,39,39,0.3)_80%)]'
+                        )}
+                        style={{
+                            borderRadius: '100px', // This is set on `style` so Framer Motion can correct for distortions
+                        }}
+                    >
+                        {/* Logo with stroke segments animation in blue-tints */}
+                        <motion.div layout>
+                            <AnimatedLogo shouldAnimate={shouldAnimateLogo} />
+                        </motion.div>
+
+                        {!minified ? children : null}
+                    </motion.div>
+                </AnimatePresence>
+            </motion.div>
+        </Tooltip>
     );
 }
 
 export function ToolbarBody(props: { children: React.ReactNode }) {
-    return <div className="flex flex-col gap-1">{props.children}</div>;
+    return <div className="flex flex-col items-start px-3">{props.children}</div>;
 }
 
-export function ToolbarButtonGroups(props: { children: React.ReactNode }) {
-    return <div className="flex flex-row gap-2">{props.children}</div>;
-}
+export function ToolbarButtonGroup(props: { children: React.ReactNode }) {
+    const { children } = props;
+    const containerRef = React.useRef<HTMLDivElement>(null);
+
+    const buttonChildren = React.Children.toArray(children).filter((child) => !!child);
+    const { buttonMotionValues } = useMagnificationEffect({
+        childrenCount: buttonChildren.length,
+        containerRef,
+    });
 
-export function ToolbarButton(props: React.HTMLProps<HTMLAnchorElement>) {
-    const { children, ...rest } = props;
     return (
-        <a
-            {...rest}
-            className={tcls(
-                'flex',
-                'flex-col',
-                'items-center',
-                'justify-center',
-                'size-11',
-                'gap-1',
-                'text-sm',
-                'rounded-full',
-                'truncate',
-                'text-tint-1', // Equal to text-tint-strong in dark mode
-                'dark:text-tint-12', // Equal to text-tint-strong in dark mode
-                'hover:bg-tint-12',
-                'dark:hover:bg-tint-1',
-                'hover:shadow-lg',
-                'cursor-pointer'
-            )}
+        <motion.div
+            ref={containerRef}
+            variants={toolbarEasings.parent}
+            initial="hidden"
+            animate="show"
+            className="flex items-center gap-1 overflow-visible pr-2 pl-4"
         >
-            {children}
-        </a>
+            {buttonChildren.map((child, index) => {
+                const childEl = child as React.ReactElement;
+                const childKey = childEl.key ?? `toolbar-button-${index}`;
+                return (
+                    <ToolbarButtonWrapper
+                        key={childKey}
+                        child={childEl}
+                        rawMotionValues={buttonMotionValues[index]}
+                    />
+                );
+            })}
+        </motion.div>
+    );
+}
+
+export interface ToolbarButtonProps extends Omit<React.HTMLProps<HTMLAnchorElement>, 'title'> {
+    motionValues?: {
+        scale: MotionValue<number>;
+        x: MotionValue<number>;
+    };
+    icon: IconName;
+    iconClassName?: string;
+    title?: React.ReactNode;
+    children?: React.ReactNode;
+}
+
+export const ToolbarButton = React.forwardRef<HTMLDivElement, ToolbarButtonProps>((props, ref) => {
+    const {
+        title,
+        disabled,
+        motionValues,
+        className,
+        style,
+        href,
+        onClick,
+        icon,
+        iconClassName,
+        children,
+    } = props;
+    const reduceMotion = useReducedMotion();
+
+    return (
+        <motion.div variants={toolbarEasings.staggeringChild} className="relative" ref={ref}>
+            {children ? children : null}
+            <Tooltip label={title}>
+                <motion.a
+                    href={href}
+                    onClick={onClick}
+                    target="_blank"
+                    rel="noopener noreferrer"
+                    style={
+                        reduceMotion
+                            ? undefined
+                            : {
+                                  scale: motionValues?.scale,
+                                  x: motionValues?.x,
+                                  transformOrigin: 'bottom center',
+                                  zIndex: motionValues?.scale ? 10 : 'auto',
+                                  ...style,
+                              }
+                    }
+                    transition={{
+                        type: 'spring',
+                        stiffness: 400,
+                        damping: 30,
+                    }}
+                    className={tcls(
+                        'toolbar-button',
+                        className,
+                        'flex',
+                        'relative',
+                        'items-center',
+                        'justify-center',
+                        'gap-1',
+                        'text-sm',
+                        'rounded-full',
+                        'truncate',
+                        'text-tint-1',
+                        'dark:text-tint-12',
+                        'cursor-pointer',
+                        'transition-colors',
+                        'size-8',
+                        disabled ? 'cursor-not-allowed opacity-50' : '',
+                        'border border-[rgba(256,_256,_256,_0.06)] border-solid',
+                        'bg-[linear-gradient(45deg,rgba(51,53,57,1)_0%,rgba(50,52,56,1)_100%)]'
+                    )}
+                >
+                    <Icon
+                        icon={icon}
+                        iconStyle={IconStyle.Solid}
+                        className={tcls(
+                            'size-4 shrink-0 group-hover:scale-110 group-hover:text-tint-3',
+                            iconClassName
+                        )}
+                    />
+                </motion.a>
+            </Tooltip>
+        </motion.div>
+    );
+});
+
+ToolbarButton.displayName = 'ToolbarButton';
+
+function ToolbarButtonWrapper(props: {
+    child: React.ReactElement;
+    rawMotionValues?: { scale: MotionValue<number>; x: MotionValue<number> };
+}) {
+    const { child, rawMotionValues } = props;
+
+    // Convert the raw motion values to smooth spring easings
+    const springScale = useSpring(rawMotionValues?.scale.get() ?? 1, {
+        stiffness: 400,
+        damping: 30,
+    });
+    const springX = useSpring(rawMotionValues?.x.get() ?? 0, { stiffness: 400, damping: 30 });
+
+    // Sync springs with raw motion values
+    React.useEffect(() => {
+        if (!rawMotionValues) return;
+
+        const unsubScale = rawMotionValues.scale.on('change', (v) => springScale.set(v));
+        const unsubX = rawMotionValues.x.on('change', (v) => springX.set(v));
+
+        return () => {
+            unsubScale();
+            unsubX();
+        };
+    }, [rawMotionValues, springScale, springX]);
+
+    const motionValues = {
+        scale: springScale,
+        x: springX,
+    };
+
+    if (!isValidElement<{ motionValues: typeof motionValues }>(child)) {
+        return null;
+    }
+
+    return React.cloneElement(child, {
+        motionValues,
+    });
+}
+
+export function ToolbarSeparator() {
+    return <div className="h-5 w-px bg-tint-1/3" />;
+}
+
+export function ToolbarTitle(props: { prefix?: string; suffix: string }) {
+    return (
+        <div className="flex items-center gap-1 text-xs ">
+            {props.prefix ? <ToolbarTitlePrefix title={props.prefix} /> : null}
+            <ToolbarTitleSuffix title={props.suffix} />
+        </div>
+    );
+}
+
+function ToolbarTitlePrefix(props: { title: string }) {
+    return (
+        <motion.span
+            {...getCopyVariants(0)}
+            className="truncate font-medium text-neutral-1 dark:text-neutral-12"
+        >
+            {props.title}
+        </motion.span>
+    );
+}
+
+function ToolbarTitleSuffix(props: { title: string }) {
+    return (
+        <motion.span
+            {...getCopyVariants(1)}
+            className="max-w-[20ch] truncate text-neutral-1 dark:text-neutral-12"
+        >
+            {props.title}
+        </motion.span>
+    );
+}
+
+export function ToolbarSubtitle(props: { subtitle: React.ReactNode }) {
+    return (
+        <motion.span
+            {...getCopyVariants(1)}
+            className="text-neutral-1/80 text-xxs dark:text-neutral-12/80"
+        >
+            {props.subtitle}
+        </motion.span>
     );
 }

packages/gitbook/src/components/AdminToolbar/ToolbarControlsContext.tsx

@@ -0,0 +1,27 @@
+'use client';
+import React from 'react';
+
+export interface ToolbarControlsContextValue {
+    minimize: () => void;
+    closeSession?: () => void;
+    closePersistent?: () => void;
+    shouldAutoExpand?: boolean;
+}
+
+const ToolbarControlsContext = React.createContext<ToolbarControlsContextValue | null>(null);
+
+/*
+ * Provides reusable state setters (mainly for hiding/showing the toolbar) for the toolbar controls propagated through to the children
+ */
+export function ToolbarControlsProvider(
+    props: React.PropsWithChildren<{ value: ToolbarControlsContextValue | null }>
+) {
+    const { children, value } = props;
+    return (
+        <ToolbarControlsContext.Provider value={value}>{children}</ToolbarControlsContext.Provider>
+    );
+}
+
+export function useToolbarControls() {
+    return React.useContext(ToolbarControlsContext);
+}

packages/gitbook/src/components/AdminToolbar/index.ts

@@ -1,2 +1,6 @@
 export * from './AdminToolbar';
+export * from './AdminToolbarClient';
 export * from './IframeWrapper';
+export * from './Toolbar';
+export * from './transitions';
+export * from './utils';

packages/gitbook/src/components/AdminToolbar/transitions.ts

@@ -0,0 +1,73 @@
+import type { Transition } from 'motion/react';
+
+// Slight bounce but minimal overshoot esp. at the minimized state.
+const spring = {
+    type: 'spring' as const,
+    stiffness: 130,
+    damping: 19,
+    mass: 1,
+};
+
+const parent = {
+    hidden: { opacity: 0 },
+    show: {
+        opacity: 1,
+        transition: {
+            delayChildren: 0.4,
+            staggerChildren: 0.1,
+        },
+    },
+};
+
+const staggeringChild = {
+    hidden: {
+        opacity: 0,
+        scale: 0.7,
+    },
+    show: {
+        opacity: 1,
+        scale: 1,
+        transition: {
+            duration: 0.3,
+            type: 'spring',
+        } as Transition,
+    },
+};
+
+export const minifyButtonAnimation = {
+    initial: {
+        scale: 0.5,
+        opacity: 0,
+    },
+    animate: {
+        scale: 1,
+        opacity: 1,
+    },
+    exit: {
+        scale: 0.5,
+        opacity: 0,
+    },
+};
+
+export const getCopyVariants = (position: number) => {
+    return {
+        initial: {
+            opacity: 0,
+            x: -10,
+        },
+        animate: {
+            opacity: 1,
+            x: 0,
+        },
+        transition: {
+            duration: 0.1,
+            delay: position / 10 + 0.3,
+        } as Transition,
+    };
+};
+
+export const toolbarEasings = {
+    spring,
+    parent,
+    staggeringChild,
+};

packages/gitbook/src/components/AdminToolbar/types.ts

@@ -0,0 +1,60 @@
+/*
+ * Minimal types containing only the fields needed for AdminToolbar to restrict what gets serialized
+ */
+
+export type MinimalChangeRequest = {
+    id: string;
+    number: number;
+    subject: string | null;
+    revision: string;
+    updatedAt: string;
+    createdBy: {
+        displayName: string;
+    };
+    urls: {
+        app: string;
+    };
+};
+
+export type MinimalRevision = {
+    createdAt: string;
+    urls: {
+        app: string;
+    };
+    git?: {
+        url: string | undefined;
+    } | null;
+};
+
+export type MinimalSpace = {
+    id: string;
+    revision: string;
+    urls: {
+        app: string;
+    };
+};
+
+export type MinimalSite = {
+    id: string;
+    title: string;
+    urls: {
+        app: string;
+        published: string | undefined;
+    };
+};
+
+export type AdminToolbarContext = {
+    organizationId: string;
+    revisionId: string;
+    space: MinimalSpace;
+    changeRequest: MinimalChangeRequest | null;
+    revision: MinimalRevision;
+    site: MinimalSite;
+};
+
+export interface AdminToolbarClientProps {
+    context: AdminToolbarContext;
+    onSessionClose?: () => void;
+    onPersistentClose?: () => void;
+    onToggleMinify?: () => void;
+}

packages/gitbook/src/components/AdminToolbar/useMagnificationEffect.ts

@@ -0,0 +1,237 @@
+import { type MotionValue, motionValue } from 'motion/react';
+import React from 'react';
+
+interface MagnificationConfig {
+    /** Size of each button in pixels - used for spacing calculations */
+    buttonSize?: number;
+    /** Maximum scale factor for buttons when mouse is directly over them */
+    maxScale?: number;
+    /** Distance in pixels from mouse where buttons start scaling */
+    influenceRadius?: number;
+    /** Multiplier for spacing between buttons - higher values create more space */
+    spacingMultiplier?: number;
+    /** Controls scaling curve - higher values make scaling more dramatic near mouse */
+    scaleExponent?: number;
+    /** Padding around container for mouse detection in pixels */
+    padding?: number;
+}
+
+const defaultConfig: Required<MagnificationConfig> = {
+    buttonSize: 32, // Standard button size for 32px (size-8) buttons
+    maxScale: 1.25, // 25% scale increase - noticeable but not overwhelming
+    influenceRadius: 80, // ~2.5 button widths of influence
+    spacingMultiplier: 1.3, // Creates proportional spacing to scale increase
+    scaleExponent: 2.5, // Exponential curve for dramatic close-range scaling
+    padding: 10, // Small buffer zone around container edges
+};
+
+const resetMotionValues = (
+    motionValues: Array<{ scale: MotionValue<number>; x: MotionValue<number> }>
+) => {
+    motionValues.forEach(({ scale, x }) => {
+        scale.set(1);
+        x.set(0);
+    });
+};
+
+const captureButtonPositions = (buttons: HTMLElement[]) => {
+    // Reset transforms to get original positions
+    buttons.forEach((button) => {
+        button.style.transform = '';
+    });
+    return buttons.map((button) => {
+        const rect = button.getBoundingClientRect();
+        return {
+            left: rect.left,
+            width: rect.width,
+            top: rect.top,
+            height: rect.height,
+        };
+    });
+};
+
+const calculateScale = (
+    mouseX: number,
+    buttonCenterX: number,
+    containerRect: DOMRect,
+    config: Required<MagnificationConfig>
+) => {
+    // Calculate only X-axis distance from mouse to button center
+    const distance = Math.abs(mouseX - buttonCenterX);
+
+    if (distance > config.influenceRadius) return 1;
+
+    // Calculate distance from container edge (X-axis only)
+    const distanceFromEdgeX = Math.min(mouseX - containerRect.left, containerRect.right - mouseX);
+    const distanceFromEdge = distanceFromEdgeX;
+
+    // Define the "heart" zone - 8px from center (16x16px total area)
+    const heartZoneRadius = 8;
+
+    let baseScale: number;
+
+    if (distance <= heartZoneRadius) {
+        // Within the heart zone - always at max scale
+        baseScale = config.maxScale;
+    } else {
+        // Outside heart zone - scale from max to 1 based on distance
+        const outerRadius = config.influenceRadius - heartZoneRadius;
+        const outerDistance = distance - heartZoneRadius;
+        const progress = Math.min(outerDistance / outerRadius, 1);
+        const exponentialProgress = (1 - progress) ** config.scaleExponent;
+        baseScale = 1 + (config.maxScale - 1) * exponentialProgress;
+    }
+
+    // Only apply entry transition if we're very close to the edge (within 10px)
+    // This prevents the entry logic from interfering with normal scaling
+    if (distanceFromEdge < 10) {
+        const entryProgress = distanceFromEdge / 10;
+        return 1 + (baseScale - 1) * entryProgress;
+    }
+
+    return baseScale;
+};
+
+const calculateSpacing = (
+    buttonIndex: number,
+    buttonEffects: Array<{ scale: number; translateX: number }>,
+    positions: Array<{ left: number; width: number; top: number; height: number }>,
+    config: Required<MagnificationConfig>
+) => {
+    const currentPos = positions[buttonIndex];
+    if (!currentPos) return 0;
+
+    const buttonCenterX = currentPos.left + currentPos.width / 2;
+    let leftPush = 0;
+    let rightPush = 0;
+
+    buttonEffects.forEach((otherEffect, otherIndex) => {
+        if (otherIndex === buttonIndex) return;
+
+        const otherPos = positions[otherIndex];
+        if (!otherPos) return;
+
+        const otherCenterX = otherPos.left + otherPos.width / 2;
+        const distanceBetween = Math.abs(buttonCenterX - otherCenterX);
+
+        // Only apply influence if close enough
+        if (distanceBetween < config.influenceRadius * 1.5) {
+            const influenceStrength = Math.max(
+                0,
+                1 - distanceBetween / (config.influenceRadius * 1.5)
+            );
+            const extraSpace = (otherEffect.scale - 1) * config.buttonSize;
+            const pushAmount = (extraSpace / 2) * config.spacingMultiplier * influenceStrength;
+
+            if (otherCenterX < buttonCenterX) {
+                rightPush += pushAmount;
+            } else {
+                leftPush += pushAmount;
+            }
+        }
+    });
+
+    return rightPush - leftPush;
+};
+
+export function useMagnificationEffect(props: {
+    childrenCount: number;
+    containerRef: React.RefObject<HTMLElement | null>;
+    config?: MagnificationConfig;
+}) {
+    const { childrenCount, containerRef, config } = props;
+    const originalPositionsRef = React.useRef<
+        Array<{ left: number; width: number; top: number; height: number }>
+    >([]);
+
+    const finalConfig = React.useMemo(() => ({ ...defaultConfig, ...config }), [config]);
+
+    // Create basic motion values that will be consumed by springs in the components
+    const buttonMotionValues = React.useMemo(() => {
+        return Array.from({ length: childrenCount }, () => ({
+            scale: motionValue(1),
+            x: motionValue(0),
+        }));
+    }, [childrenCount]);
+
+    React.useEffect(() => {
+        const container = containerRef.current;
+        if (!container) return;
+
+        const buttons = Array.from(container.querySelectorAll('.toolbar-button')) as HTMLElement[];
+
+        if (buttons.length !== childrenCount) {
+            console.error(
+                `Button count (${buttons.length}) does not match children count (${childrenCount})`
+            );
+            return;
+        }
+
+        const handleMouseMove = (event: MouseEvent) => {
+            const buttons = Array.from(
+                container.querySelectorAll('.toolbar-button')
+            ) as HTMLElement[];
+
+            // Capture positions if needed
+            if (originalPositionsRef.current.length !== buttons.length) {
+                originalPositionsRef.current = captureButtonPositions(buttons);
+            }
+
+            const containerRect = container.getBoundingClientRect();
+            const { clientX: mouseX, clientY: mouseY } = event;
+
+            // Check if mouse is in range
+            const isInRange =
+                mouseX >= containerRect.left - finalConfig.padding &&
+                mouseX <= containerRect.right + finalConfig.padding &&
+                mouseY >= containerRect.top - finalConfig.padding &&
+                mouseY <= containerRect.bottom + finalConfig.padding;
+
+            if (!isInRange) {
+                resetMotionValues(buttonMotionValues);
+                return;
+            }
+
+            // Calculate scales for all buttons
+            const buttonEffects = buttons.map((_, index) => {
+                const pos = originalPositionsRef.current[index];
+                if (!pos) return { scale: 1, translateX: 0 };
+
+                const buttonCenterX = pos.left + pos.width / 2;
+                const scale = calculateScale(mouseX, buttonCenterX, containerRect, finalConfig);
+                return { scale, translateX: 0 };
+            });
+
+            // Calculate spacing for all buttons
+            buttonEffects.forEach((effect, index) => {
+                effect.translateX = calculateSpacing(
+                    index,
+                    buttonEffects,
+                    originalPositionsRef.current,
+                    finalConfig
+                );
+            });
+
+            // Update motion values
+            buttonEffects.forEach((effect, index) => {
+                const motionValue = buttonMotionValues[index];
+                if (motionValue) {
+                    motionValue.scale.set(effect.scale);
+                    motionValue.x.set(effect.translateX);
+                }
+            });
+        };
+
+        const handleMouseLeave = () => resetMotionValues(buttonMotionValues);
+
+        container.addEventListener('mousemove', handleMouseMove);
+        container.addEventListener('mouseleave', handleMouseLeave);
+
+        return () => {
+            container.removeEventListener('mousemove', handleMouseMove);
+            container.removeEventListener('mouseleave', handleMouseLeave);
+        };
+    }, [finalConfig, containerRef, buttonMotionValues, childrenCount]);
+
+    return { buttonMotionValues };
+}

packages/gitbook/src/components/AdminToolbar/utils.ts

@@ -0,0 +1,154 @@
+import React from 'react';
+
+import {
+    getLocalStorageItem,
+    getSessionStorageItem,
+    removeSessionStorageItem,
+    setLocalStorageItem,
+    setSessionStorageItem,
+} from '@/lib/browser/local-storage';
+
+const STORAGE_KEY = 'gitbook_toolbar_closed';
+const SESSION_STORAGE_KEY = 'gitbook_toolbar_session_closed';
+const SESSION_MINIFIED_KEY = 'gitbook_toolbar_minified';
+
+type SessionHideReason = 'session' | 'persistent';
+
+/**
+ * Read the current session hide state. We store whether the toolbar was hidden “for session” or
+ * “persistently” so we can distinguish between a temporary dismissal and a user preference.
+ */
+export const getSessionHideState = (): { hidden: boolean; reason?: SessionHideReason } => {
+    const value = getSessionStorageItem<SessionHideReason | null>(SESSION_STORAGE_KEY, null);
+    if (value === 'session' || value === 'persistent') {
+        return { hidden: true, reason: value };
+    }
+    return { hidden: false, reason: undefined };
+};
+
+/**
+ * Persist the session hide state. Passing `false` clears the stored preference entirely.
+ */
+export const setSessionHidden = (value: boolean, reason?: SessionHideReason) => {
+    if (value && reason) {
+        setSessionStorageItem(SESSION_STORAGE_KEY, reason);
+    } else {
+        removeSessionStorageItem(SESSION_STORAGE_KEY);
+    }
+};
+
+/**
+ * Retrieve the last minified state from session storage. If no value was ever stored we return
+ * `undefined`, which signals that the toolbar should auto-expand once the logo animation finishes.
+ */
+export const getStoredMinified = (): boolean | undefined => {
+    const stored = getSessionStorageItem<boolean | null>(SESSION_MINIFIED_KEY, null);
+    if (stored === null || stored === undefined) {
+        removeSessionStorageItem(SESSION_MINIFIED_KEY);
+        return undefined;
+    }
+    return stored;
+};
+
+/**
+ * Persist the current minified state for the ongoing session.
+ */
+export const setStoredMinified = (value: boolean) => {
+    setSessionStorageItem(SESSION_MINIFIED_KEY, value);
+};
+
+interface UseToolbarVisibilityOptions {
+    onPersistentClose?: () => void;
+    onSessionClose?: () => void;
+    onToggleMinify?: () => void;
+}
+
+export function useToolbarVisibility(options: UseToolbarVisibilityOptions = {}) {
+    const { onPersistentClose, onSessionClose, onToggleMinify } = options;
+
+    const [initialStoredMinified] = React.useState<boolean | undefined>(() =>
+        typeof window !== 'undefined' ? getStoredMinified() : undefined
+    );
+    const shouldAutoExpand = initialStoredMinified === undefined;
+
+    const [minified, setMinifiedState] = React.useState<boolean>(() =>
+        initialStoredMinified !== undefined ? initialStoredMinified : true
+    );
+
+    const [persistentHidden, setPersistentHidden] = React.useState(() =>
+        getLocalStorageItem(STORAGE_KEY, false)
+    );
+
+    const [sessionReason, setSessionReason] = React.useState<SessionHideReason | undefined>(() => {
+        const state = getSessionHideState();
+        return state.hidden ? state.reason : undefined;
+    });
+
+    React.useEffect(() => {
+        if (typeof window === 'undefined') {
+            return;
+        }
+
+        const handleStorage = () => {
+            setPersistentHidden(getLocalStorageItem(STORAGE_KEY, false));
+            const state = getSessionHideState();
+            setSessionReason(state.hidden ? state.reason : undefined);
+        };
+
+        window.addEventListener('storage', handleStorage);
+        return () => window.removeEventListener('storage', handleStorage);
+    }, []);
+
+    React.useEffect(() => {
+        if (persistentHidden) {
+            if (sessionReason !== 'persistent') {
+                // Sync the session flag so we honour the persistent preference and avoid flashes when
+                // opening new tabs in the same browsing session.
+                setSessionHidden(true, 'persistent');
+                setSessionReason('persistent');
+            }
+            return;
+        }
+
+        if (sessionReason === 'persistent') {
+            // If the persistent preference was cleared we also clear the session flag so the toolbar
+            // can reappear immediately without requiring a full reload.
+            setSessionHidden(false);
+            setSessionReason(undefined);
+        }
+    }, [persistentHidden, sessionReason]);
+
+    const setMinified = (value: boolean) => {
+        setMinifiedState(value);
+        setStoredMinified(value);
+        onToggleMinify?.();
+    };
+
+    const minimize = () => setMinified(true);
+
+    const closeSession = () => {
+        setSessionHidden(true, 'session');
+        setSessionReason('session');
+        onSessionClose?.();
+    };
+
+    const closePersistent = () => {
+        setLocalStorageItem(STORAGE_KEY, true);
+        setPersistentHidden(true);
+        setSessionHidden(true, 'persistent');
+        setSessionReason('persistent');
+        onPersistentClose?.();
+    };
+
+    const hidden = persistentHidden || sessionReason === 'session';
+
+    return {
+        minified,
+        setMinified,
+        shouldAutoExpand,
+        hidden,
+        minimize,
+        closeSession,
+        closePersistent,
+    };
+}

packages/gitbook/src/components/AutoRefreshContent/server-actions.ts

@@ -1,28 +1,43 @@
 'use server';
 
 import { getDataOrNull } from '@/lib/data';
+import { getSiteURLDataFromMiddleware } from '@/lib/middleware';
 import { getServerActionBaseContext } from '@/lib/server-actions';
 import { traceErrorOnly } from '@/lib/tracing';
 
 /**
- * Return true if a change-request has been updated.
+ * Return true if the content has been updated.
+ * It compares the revision ID displayed on the client side with the latest revision ID from the server/cache.
  */
 export async function hasContentBeenUpdated(props: {
-    spaceId: string;
-    changeRequestId: string;
     revisionId: string;
 }) {
     return traceErrorOnly('AutoRefreshContent.hasContentBeenUpdated', async () => {
         const context = await getServerActionBaseContext();
-        const changeRequest = await getDataOrNull(
-            context.dataFetcher.getChangeRequest({
-                spaceId: props.spaceId,
-                changeRequestId: props.changeRequestId,
+        const siteURLData = await getSiteURLDataFromMiddleware();
+
+        if (siteURLData.changeRequest) {
+            const changeRequest = await getDataOrNull(
+                context.dataFetcher.getChangeRequest({
+                    spaceId: siteURLData.space,
+                    changeRequestId: siteURLData.changeRequest,
+                })
+            );
+            if (!changeRequest) {
+                return false;
+            }
+            return changeRequest.revision !== props.revisionId;
+        }
+
+        const space = await getDataOrNull(
+            context.dataFetcher.getSpace({
+                spaceId: siteURLData.space,
+                shareKey: siteURLData.shareKey,
             })
         );
-        if (!changeRequest) {
+        if (!space) {
             return false;
         }
-        return changeRequest.revision !== props.revisionId;
+        return space.revision !== props.revisionId;
     });
 }

packages/gitbook/src/components/AutoRefreshContent/useCheckForContentUpdate.ts

@@ -5,20 +5,71 @@ import React from 'react';
 import { hasContentBeenUpdated } from './server-actions';
 
 /**
- * Return a callback to check if a change request has been updated and to refresh the page if it has.
+ * Return a callback to check if a content has been updated and to refresh the page if it has.
  */
 export function useCheckForContentUpdate(props: {
-    spaceId: string;
-    changeRequestId: string;
+    /**
+     * ID of the revision of the content currently being displayed.
+     */
     revisionId: string;
+    /**
+     * How long after page load to check for updates.
+     * @default 5min
+     */
+    checkAfterLoad?: number;
 }) {
-    const { spaceId, changeRequestId, revisionId } = props;
-
-    return React.useCallback(async () => {
-        const updated = await hasContentBeenUpdated({ spaceId, changeRequestId, revisionId });
+    const { revisionId, checkAfterLoad = 5 * 60 * 1000 } = props;
+    const [updated, setUpdated] = React.useState(false);
 
+    const checkForUpdates = React.useCallback(async () => {
         if (updated) {
+            // No need to check for updates if we already know the content has been updated
+            return true;
+        }
+
+        const result = await hasContentBeenUpdated({ revisionId });
+        setUpdated(result);
+        return result;
+    }, [revisionId, updated]);
+
+    const refreshForUpdates = React.useCallback(async () => {
+        if (await checkForUpdates()) {
             window.location.reload();
         }
-    }, [spaceId, changeRequestId, revisionId]);
+    }, [checkForUpdates]);
+
+    // Check for updates after the page has loaded
+    React.useEffect(() => {
+        const timeout = setTimeout(() => {
+            if (document.visibilityState === 'visible') {
+                // We check only if the tab is visible; otherwise we'll check when the tab is focus again
+                checkForUpdates();
+            }
+        }, checkAfterLoad);
+
+        return () => {
+            clearTimeout(timeout);
+        };
+    }, [checkForUpdates, checkAfterLoad]);
+
+    // Check for updates when the tab is becoming visible
+    React.useEffect(() => {
+        if (updated) {
+            // No need to check for updates if we already know the content has been updated
+            return;
+        }
+
+        const callback = () => {
+            if (document.visibilityState === 'visible') {
+                checkForUpdates();
+            }
+        };
+
+        document.addEventListener('visibilitychange', callback);
+        return () => {
+            document.removeEventListener('visibilitychange', callback);
+        };
+    }, [checkForUpdates, updated]);
+
+    return { refreshForUpdates, updated };
 }

packages/gitbook/src/components/DocumentView/Block.tsx

@@ -6,6 +6,7 @@ import {
     SkeletonImage,
     SkeletonParagraph,
     SkeletonSmall,
+    SkeletonUpdate,
 } from '@/components/primitives';
 import type { ClassValue } from '@/lib/tailwind';
 
@@ -34,6 +35,8 @@ import { Stepper } from './Stepper';
 import { StepperStep } from './StepperStep';
 import { Table } from './Table';
 import { Tabs } from './Tabs';
+import { Update } from './Update';
+import { Updates } from './Updates';
 
 export interface BlockProps<Block extends DocumentBlock> extends DocumentContextProps {
     block: Block;
@@ -105,6 +108,10 @@ export function Block<T extends DocumentBlock>(props: BlockProps<T>) {
                 return <Stepper {...props} block={block} />;
             case 'stepper-step':
                 return <StepperStep {...props} block={block} />;
+            case 'updates':
+                return <Updates {...props} block={block} />;
+            case 'update':
+                return <Update {...props} block={block} />;
             case 'if':
                 // If block should be processed by the API.
                 return null;
@@ -165,10 +172,13 @@ export function BlockSkeleton(props: { block: DocumentBlock; style: ClassValue }
         case 'images':
         case 'drawing':
             return <SkeletonImage id={id} style={style} />;
+        case 'updates':
+            return <SkeletonUpdate id={id} style={style} />;
         case 'image':
         case 'code-line':
         case 'tabs-item':
         case 'column':
+        case 'update':
             throw new Error(`Blocks (${block.type}) should be directly rendered by parent`);
         default:
             return nullIfNever(block);

packages/gitbook/src/components/DocumentView/BlockContentRef.tsx

@@ -1,9 +1,18 @@
-import { type DocumentBlockContentRef, SiteInsightsLinkPosition } from '@gitbook/api';
+import {
+    type ContentRef,
+    type DocumentBlockContentRef,
+    SiteInsightsLinkPosition,
+} from '@gitbook/api';
 
-import { Card } from '@/components/primitives';
-import { type ResolvedContentRef, resolveContentRef } from '@/lib/references';
+import { Card, type CardProps } from '@/components/primitives';
+import {
+    type ResolvedContentRef,
+    resolveContentRef,
+    resolveContentRefFallback,
+} from '@/lib/references';
 
 import type { BlockProps } from './Block';
+import { NotFoundRefHoverCard } from './NotFoundRefHoverCard';
 
 export async function BlockContentRef(props: BlockProps<DocumentBlockContentRef>) {
     const { block, context, style } = props;
@@ -16,51 +25,45 @@ export async function BlockContentRef(props: BlockProps<DocumentBlockContentRef>
         : null;
 
     if (!resolved) {
-        return null;
+        const fallback = resolveContentRefFallback(block.data.ref);
+        if (!fallback) {
+            return null;
+        }
+        return (
+            <NotFoundRefHoverCard context={context}>
+                <BlockContentRefCard
+                    contentRef={block.data.ref}
+                    resolved={fallback}
+                    style={style}
+                />
+            </NotFoundRefHoverCard>
+        );
     }
 
-    const isContentInOtherSpace =
-        context.contentContext?.space &&
-        'space' in block.data.ref &&
-        context.contentContext.space.id !== block.data.ref.space;
-    const kind = block?.data?.ref?.kind;
-    if ((resolved.active && kind === 'space') || isContentInOtherSpace) {
-        return <SpaceRefCard {...props} resolved={resolved} />;
-    }
+    return <BlockContentRefCard contentRef={block.data.ref} resolved={resolved} style={style} />;
+}
 
+function BlockContentRefCard(
+    props: {
+        resolved: ResolvedContentRef;
+        contentRef: ContentRef;
+    } & Omit<CardProps, 'href' | 'title'>
+) {
+    const { ref, resolved, contentRef, ...rest } = props;
     return (
         <Card
+            ref={ref}
             leadingIcon={resolved.icon ? resolved.icon : null}
             href={resolved.href}
             title={resolved.text}
-            style={style}
             insights={{
                 type: 'link_click',
                 link: {
-                    target: block.data.ref,
+                    target: contentRef,
                     position: SiteInsightsLinkPosition.Content,
                 },
             }}
-        />
-    );
-}
-
-async function SpaceRefCard(
-    props: { resolved: ResolvedContentRef } & BlockProps<DocumentBlockContentRef>
-) {
-    const { context, style, resolved } = props;
-    const spaceId = context.contentContext?.space.id;
-
-    if (!spaceId) {
-        return null;
-    }
-
-    return (
-        <Card
-            href={resolved.href}
-            title={resolved.text}
-            postTitle={resolved.subText}
-            style={style}
+            {...rest}
         />
     );
 }

packages/gitbook/src/components/DocumentView/Blocks.tsx

@@ -51,11 +51,13 @@ type UnwrappedBlocksProps<TBlock extends DocumentBlock> = DocumentContextProps &
  * Ideally we'd rely on the block type to determine if it can be full width, but
  * the block's `fullWidth` property does not differentiate between `undefined` and `false`.
  * So instead we hardcode a list of blocks that can be full width. */
-const FULL_WIDTH_BLOCKS = [
+const FULL_WIDTH_BLOCKS: DocumentBlock['type'][] = [
     'table',
     'tabs',
     'integration',
-    'openapi',
+    'openapi-operation',
+    'openapi-schemas',
+    'openapi-webhook',
     'images',
     'embed',
     'columns',
@@ -64,6 +66,8 @@ const FULL_WIDTH_BLOCKS = [
     'hint',
 ];
 
+const LIST_BLOCKS: DocumentBlock['type'][] = ['list-ordered', 'list-tasks', 'list-unordered'];
+
 /**
  * Renders a list of blocks without a wrapper element.
  */
@@ -85,11 +89,12 @@ export function UnwrappedBlocks<TBlock extends DocumentBlock>(props: UnwrappedBl
                 key={node.key || `${node.type}-${index}`}
                 block={node}
                 style={[
-                    'mx-auto page-width-wide:mx-0 w-full decoration-primary/6 print:break-inside-avoid',
+                    'mx-auto page-width-wide:mx-0 w-full decoration-primary/6',
                     node.data && 'fullWidth' in node.data && node.data.fullWidth
                         ? 'max-w-screen-xl'
                         : 'max-w-3xl',
-                    FULL_WIDTH_BLOCKS.includes(node.type) && 'page-width-wide:max-w-screen-2xl',
+                    !LIST_BLOCKS.includes(node.type) && 'print:break-inside-avoid',
+                    FULL_WIDTH_BLOCKS.includes(node.type) && 'page-width-wide:max-w-full',
                     blockStyle,
                 ]}
                 isEstimatedOffscreen={isOffscreen}

packages/gitbook/src/components/DocumentView/Caption.tsx

@@ -24,6 +24,7 @@ export function Caption(
         wrapperStyle?: ClassValue;
         block: DocumentBlockImage | DocumentBlockDrawing | DocumentBlockEmbed | DocumentBlockFile;
         withBorder?: boolean;
+        withFrame?: boolean;
     } & DocumentContextProps
 ) {
     const {
@@ -33,6 +34,7 @@ export function Caption(
         context,
         fit = false,
         withBorder = false,
+        withFrame = false,
         wrapperStyle = [
             'relative',
             'overflow-hidden',
@@ -44,6 +46,7 @@ export function Caption(
             withBorder
                 ? 'rounded-corners:rounded-sm circular-corners:rounded-2xl after:border-tint-subtle after:border after:rounded circular-corners:after:rounded-2xl rounded-corners:after:rounded-sm dark:after:mix-blend-plus-lighter after:pointer-events-none'
                 : null,
+            withFrame && 'p-2',
         ],
         style,
     } = props;
@@ -62,7 +65,14 @@ export function Caption(
     return (
         <picture className={tcls('relative', style)}>
             <div className={tcls(wrapperStyle, 'mx-auto')}>{children}</div>
-            <figcaption className={tcls('text-sm', 'text-center', 'mt-2', 'text-tint')}>
+            <figcaption
+                className={tcls(
+                    'text-xs',
+                    'text-center',
+                    'text-tint',
+                    withFrame ? 'mt-0.5 mb-2.5' : 'mt-2'
+                )}
+            >
                 <Inlines
                     nodes={captionParagraph.nodes}
                     document={document}

packages/gitbook/src/components/DocumentView/CodeBlock/ClientCodeBlock.tsx

@@ -1,30 +1,49 @@
 'use client';
 
 import type { DocumentBlockCode } from '@gitbook/api';
-import { useEffect, useMemo, useRef, useState } from 'react';
+import { useEffect, useId, useMemo, useRef, useState } from 'react';
 
+import { useAdaptiveVisitor } from '@/components/Adaptive';
 import { useInViewportListener } from '@/components/hooks/useInViewportListener';
 import { useScrollListener } from '@/components/hooks/useScrollListener';
+import { Button } from '@/components/primitives';
+import { t, useLanguage } from '@/intl/client';
+import { tcls } from '@/lib/tailwind';
 import { useDebounceCallback } from 'usehooks-ts';
 import type { BlockProps } from '../Block';
+import { type InlineExpressionVariables, useEvaluateInlineExpression } from '../InlineExpression';
 import { CodeBlockRenderer } from './CodeBlockRenderer';
 import type { HighlightLine, RenderedInline } from './highlight';
 import { plainHighlight } from './plain-highlight';
 
 type ClientBlockProps = Pick<BlockProps<DocumentBlockCode>, 'block' | 'style'> & {
     inlines: RenderedInline[];
+    inlineExprVariables: InlineExpressionVariables;
+    mode: BlockProps<DocumentBlockCode>['context']['mode'];
 };
 
+export const CODE_BLOCK_DEFAULT_COLLAPSED_LINE_COUNT = 10;
+
 /**
  * Render a code-block client-side by loading the highlighter asynchronously.
  * It allows us to defer some load to avoid blocking the rendering of the whole page with block highlighting.
  */
 export function ClientCodeBlock(props: ClientBlockProps) {
-    const { block, style, inlines } = props;
+    const { block, mode, style, inlines, inlineExprVariables } = props;
     const blockRef = useRef<HTMLDivElement>(null);
     const isInViewportRef = useRef(false);
     const [isInViewport, setIsInViewport] = useState(false);
-    const plainLines = useMemo(() => plainHighlight(block, []), [block]);
+
+    const getAdaptiveVisitorClaims = useAdaptiveVisitor();
+    const visitorClaims = getAdaptiveVisitorClaims();
+    const evaluateInlineExpression = useEvaluateInlineExpression({
+        visitorClaims,
+        variables: inlineExprVariables,
+    });
+    const plainLines = useMemo(
+        () => plainHighlight(block, inlines, { evaluateInlineExpression }),
+        [block, inlines, evaluateInlineExpression]
+    );
     const [lines, setLines] = useState<null | HighlightLine[]>(null);
     const [highlighting, setHighlighting] = useState(false);
 
@@ -80,7 +99,7 @@ export function ClientCodeBlock(props: ClientBlockProps) {
             if (typeof window !== 'undefined') {
                 setHighlighting(true);
                 import('./highlight').then(({ highlight }) => {
-                    highlight(block, inlines).then((lines) => {
+                    highlight(block, inlines, { evaluateInlineExpression }).then((lines) => {
                         if (cancelled) {
                             return;
                         }
@@ -98,15 +117,86 @@ export function ClientCodeBlock(props: ClientBlockProps) {
 
         // Otherwise if the block is not in viewport, we reset to the plain lines
         setLines(null);
-    }, [isInViewport, block, inlines]);
+    }, [isInViewport, block, inlines, evaluateInlineExpression]);
 
-    return (
+    const expandable = block.data.expandable;
+
+    const numberOfLinesOfCode = lines?.length ?? plainLines.length;
+    const collapsedLineCount =
+        block.data.collapsedLineCount || CODE_BLOCK_DEFAULT_COLLAPSED_LINE_COUNT;
+    const isExpandable = Boolean(
+        expandable && mode !== 'print' && numberOfLinesOfCode > collapsedLineCount
+    );
+
+    const codeBlockBodyId = useId();
+
+    const renderer = (
         <CodeBlockRenderer
             ref={blockRef}
             aria-busy={highlighting}
             block={block}
             style={style}
             lines={lines ?? plainLines}
+            id={codeBlockBodyId}
         />
     );
+
+    return isExpandable ? (
+        <CodeBlockExpandable
+            lines={lines ?? plainLines}
+            controls={codeBlockBodyId}
+            collapsedLineCount={collapsedLineCount}
+        >
+            {renderer}
+        </CodeBlockExpandable>
+    ) : (
+        renderer
+    );
+}
+
+function CodeBlockExpandable(props: {
+    children: React.ReactNode;
+    lines: HighlightLine[];
+    collapsedLineCount: number;
+    controls?: string;
+}) {
+    const { children, controls, lines = [], collapsedLineCount } = props;
+    const [isExpanded, setIsExpanded] = useState(false);
+    const language = useLanguage();
+    return (
+        <div className="group/codeblock-expandable relative">
+            <div
+                className={tcls(
+                    isExpanded
+                        ? '[&_pre]:after:opacity-0'
+                        : '[&_pre]:h-[calc(2rem+var(--line-count)*var(--line-height))] [&_pre]:overflow-y-hidden [&_pre]:after:opacity-100',
+                    '[&_pre]:after:pointer-events-none [&_pre]:after:absolute [&_pre]:after:inset-0 [&_pre]:after:z-1 [&_pre]:after:bg-gradient-to-t [&_pre]:after:from-0% [&_pre]:after:from-tint-2 [&_pre]:after:to-70% [&_pre]:after:to-transparent [&_pre]:after:content-[""]'
+                )}
+                style={
+                    {
+                        '--line-count': collapsedLineCount,
+                        '--line-height': '1.25rem',
+                    } as React.CSSProperties
+                }
+            >
+                {children}
+            </div>
+            <div className="pointer-events-none absolute bottom-0 flex w-full justify-center">
+                <Button
+                    icon={isExpanded ? 'chevron-up' : 'chevron-down'}
+                    size="xsmall"
+                    variant="blank"
+                    type="button"
+                    onClick={() => setIsExpanded(!isExpanded)}
+                    className="pointer-events-auto z-1 my-2 text-primary text-sm opacity-0 focus:opacity-11 group-hover/codeblock-expandable:opacity-11"
+                    aria-expanded={isExpanded}
+                    aria-controls={controls}
+                >
+                    {isExpanded
+                        ? t(language, 'code_block_expanded')
+                        : t(language, 'code_block_collapsed', lines.length)}
+                </Button>
+            </div>
+        </div>
+    );
 }

packages/gitbook/src/components/DocumentView/CodeBlock/CodeBlock.tsx

@@ -1,3 +1,5 @@
+import * as React from 'react';
+
 import type { DocumentBlockCode } from '@gitbook/api';
 
 import { getNodeFragmentByType } from '@/lib/document';
@@ -14,32 +16,65 @@ import { type RenderedInline, getInlines, highlight } from './highlight';
 export async function CodeBlock(props: BlockProps<DocumentBlockCode>) {
     const { block, document, style, isEstimatedOffscreen, context } = props;
     const inlines = getInlines(block);
-    const richInlines: RenderedInline[] = inlines.map((inline, index) => {
-        const body = (() => {
-            const fragment = getNodeFragmentByType(inline.inline, 'annotation-body');
-            if (!fragment) {
-                return null;
+
+    let hasInlineExpression = false;
+
+    const richInlines: RenderedInline[] = inlines
+        // Exclude inline expressions from rendered inline as they are rendered as code text once evaluated
+        // and so need to be treated as plain code tokens.
+        .filter((inline) => {
+            if (inline.inline.type === 'expression') {
+                hasInlineExpression = true;
+                return false;
             }
-            return (
-                <Blocks
-                    key={index}
-                    document={document}
-                    ancestorBlocks={[]}
-                    context={context}
-                    nodes={fragment.nodes}
-                    style="space-y-4"
-                />
-            );
-        })();
+            return true;
+        })
+        .map((inline, index) => {
+            const body = (() => {
+                const fragment = getNodeFragmentByType(inline.inline, 'annotation-body');
+                if (!fragment) {
+                    return null;
+                }
+                return (
+                    <Blocks
+                        key={index}
+                        document={document}
+                        ancestorBlocks={[]}
+                        context={context}
+                        nodes={fragment.nodes}
+                        style="space-y-4"
+                    />
+                );
+            })();
 
-        return { inline, body };
-    });
+            return { inline, body };
+        });
 
-    if (!isEstimatedOffscreen) {
+    if (!isEstimatedOffscreen && !hasInlineExpression && !block.data.expandable) {
         // In v2, we render the code block server-side
         const lines = await highlight(block, richInlines);
         return <CodeBlockRenderer block={block} style={style} lines={lines} />;
     }
 
-    return <ClientCodeBlock block={block} style={style} inlines={richInlines} />;
+    const variables = context.contentContext
+        ? {
+              space: context.contentContext?.revision.variables,
+              page:
+                  'page' in context.contentContext
+                      ? context.contentContext.page.variables
+                      : undefined,
+          }
+        : {};
+
+    return (
+        <React.Suspense fallback={null}>
+            <ClientCodeBlock
+                block={block}
+                style={style}
+                inlines={richInlines}
+                inlineExprVariables={variables}
+                mode={context.mode}
+            />
+        </React.Suspense>
+    );
 }

packages/gitbook/src/components/DocumentView/CodeBlock/CodeBlockRenderer.tsx

@@ -12,6 +12,7 @@ import type { HighlightLine, HighlightToken } from './highlight';
 type CodeBlockRendererProps = Pick<BlockProps<DocumentBlockCode>, 'block' | 'style'> & {
     lines: HighlightLine[];
     'aria-busy'?: boolean;
+    id?: string;
 };
 
 /**
@@ -23,16 +24,17 @@ export const CodeBlockRenderer = forwardRef(function CodeBlockRenderer(
 ) {
     const { block, style, lines, 'aria-busy': ariaBusy } = props;
 
-    const id = useId();
     const withLineNumbers = Boolean(block.data.lineNumbers) && block.nodes.length > 1;
     const withWrap = block.data.overflow === 'wrap';
     const title = block.data.title;
 
+    const id = useId();
+    const codeId = props.id || id;
     return (
         <div
             ref={ref}
             aria-busy={ariaBusy}
-            className={tcls('group/codeblock grid grid-flow-col', style)}
+            className={tcls('group/codeblock grid shrink grid-flow-col overflow-hidden', style)}
         >
             <div className="flex items-center justify-start gap-2 text-sm [grid-area:1/1]">
                 {title ? (
@@ -42,7 +44,7 @@ export const CodeBlockRenderer = forwardRef(function CodeBlockRenderer(
                 ) : null}
             </div>
             <CopyCodeButton
-                codeId={id}
+                codeId={codeId}
                 style="z-2 mt-2 mr-2 self-start justify-self-end leading-none opacity-0 backdrop-blur-md [grid-area:2/1] group-hover/codeblock:opacity-11"
             />
             <pre
@@ -53,7 +55,7 @@ export const CodeBlockRenderer = forwardRef(function CodeBlockRenderer(
                 )}
             >
                 <code
-                    id={id}
+                    id={codeId}
                     className={tcls(
                         'inline-grid min-w-full grid-cols-[auto_1fr] [count-reset:line] print:whitespace-pre-wrap',
                         withWrap && 'whitespace-pre-wrap'

packages/gitbook/src/components/DocumentView/CodeBlock/PlainCodeBlock.tsx

@@ -1,7 +1,8 @@
-import type { DocumentBlockCode, JSONDocument } from '@gitbook/api';
+import type { JSONDocument } from '@gitbook/api';
 import { useId } from 'react';
 
 import { CodeBlock } from './CodeBlock';
+import { convertCodeStringToBlock } from './utils';
 
 /**
  * Plain code block with syntax highlighting.
@@ -11,31 +12,7 @@ export function PlainCodeBlock(props: { code: string; syntax: string }) {
     const { code, syntax } = props;
     const id = useId();
 
-    const block: DocumentBlockCode = {
-        key: id,
-        object: 'block',
-        type: 'code',
-        data: {
-            syntax,
-        },
-        nodes: code.split('\n').map((line) => ({
-            object: 'block',
-            type: 'code-line',
-            data: {},
-            nodes: [
-                {
-                    object: 'text',
-                    leaves: [
-                        {
-                            object: 'leaf',
-                            text: line,
-                            marks: [],
-                        },
-                    ],
-                },
-            ],
-        })),
-    };
+    const block = convertCodeStringToBlock({ key: id, code, syntax });
 
     const document: JSONDocument = {
         object: 'document',

packages/gitbook/src/components/DocumentView/CodeBlock/highlight.ts

@@ -64,7 +64,10 @@ export async function preloadHighlight(block: DocumentBlockCode) {
  */
 export async function highlight(
     block: DocumentBlockCode,
-    inlines: RenderedInline[]
+    inlines: RenderedInline[],
+    options?: {
+        evaluateInlineExpression?: (expr: string) => string;
+    }
 ): Promise<HighlightLine[]> {
     const langName = getBlockLang(block);
 
@@ -74,10 +77,10 @@ export async function highlight(
         // - TEMP : language is PowerShell or C++ and browser is Safari:
         //   RegExp#[Symbol.search] throws TypeError when `lastIndex` isn’t writable
         //   Fixed in upcoming Safari 18.6, remove when it'll be released - RND-7772
-        return plainHighlight(block, inlines);
+        return plainHighlight(block, inlines, options);
     }
 
-    const code = getPlainCodeBlock(block);
+    const code = getPlainCodeBlock(block, undefined, options);
 
     const highlighter = await getSingletonHighlighter({
         langs: [langName],
@@ -255,11 +258,17 @@ function matchTokenAndInlines(
     return result;
 }
 
-function getPlainCodeBlock(code: DocumentBlockCode, inlines?: InlineIndexed[]): string {
+function getPlainCodeBlock(
+    code: DocumentBlockCode,
+    inlines?: InlineIndexed[],
+    options?: {
+        evaluateInlineExpression?: (expr: string) => string;
+    }
+): string {
     let content = '';
 
     code.nodes.forEach((node, index) => {
-        const lineContent = getPlainCodeBlockLine(node, content.length, inlines);
+        const lineContent = getPlainCodeBlockLine(node, content.length, inlines, options);
         content += lineContent;
 
         if (index < code.nodes.length - 1) {
@@ -273,7 +282,10 @@ function getPlainCodeBlock(code: DocumentBlockCode, inlines?: InlineIndexed[]):
 function getPlainCodeBlockLine(
     parent: DocumentBlockCodeLine | DocumentInlineAnnotation,
     index: number,
-    inlines?: InlineIndexed[]
+    inlines?: InlineIndexed[],
+    options?: {
+        evaluateInlineExpression?: (expr: string) => string;
+    }
 ): string {
     let content = '';
 
@@ -284,7 +296,12 @@ function getPlainCodeBlockLine(
             switch (node.type) {
                 case 'annotation': {
                     const start = index + content.length;
-                    content += getPlainCodeBlockLine(node, index + content.length, inlines);
+                    content += getPlainCodeBlockLine(
+                        node,
+                        index + content.length,
+                        inlines,
+                        options
+                    );
                     const end = index + content.length;
 
                     if (inlines) {
@@ -297,6 +314,19 @@ function getPlainCodeBlockLine(
                     break;
                 }
                 case 'expression': {
+                    const start = index + content.length;
+                    const exprValue =
+                        options?.evaluateInlineExpression?.(node.data.expression) ?? '';
+                    content += exprValue;
+                    const end = start + exprValue.length;
+
+                    if (inlines) {
+                        inlines.push({
+                            inline: node,
+                            start,
+                            end,
+                        });
+                    }
                     break;
                 }
                 default: {

packages/gitbook/src/components/DocumentView/CodeBlock/plain-highlight.ts

@@ -9,9 +9,13 @@ import type { HighlightLine, HighlightToken, RenderedInline } from './highlight'
  */
 export function plainHighlight(
     block: DocumentBlockCode,
-    inlines: RenderedInline[]
+    inlines: RenderedInline[],
+    options?: {
+        evaluateInlineExpression?: (expr: string) => string;
+    }
 ): HighlightLine[] {
     const inlinesCopy = Array.from(inlines);
+
     return block.nodes.map((lineBlock) => {
         const tokens: HighlightToken[] = lineBlock.nodes.map((node) => {
             if (node.object === 'text') {
@@ -20,6 +24,14 @@ export function plainHighlight(
                     content: getNodeText(node),
                 };
             }
+
+            if (node.type === 'expression') {
+                return {
+                    type: 'plain',
+                    content: options?.evaluateInlineExpression?.(node.data.expression) ?? '',
+                };
+            }
+
             const inline = inlinesCopy.shift();
             return {
                 type: 'annotation',

packages/gitbook/src/components/DocumentView/CodeBlock/utils.test.ts

@@ -0,0 +1,219 @@
+import { describe, expect, it } from 'bun:test';
+import { convertCodeStringToBlock } from './utils';
+
+describe('convertCodeStringToBlock', () => {
+    it('converts plain code string without placeholders', () => {
+        const result = convertCodeStringToBlock({
+            key: 'test1',
+            code: 'console.log("hello");',
+            syntax: 'javascript',
+        });
+
+        expect(result).toEqual({
+            key: 'test1',
+            object: 'block',
+            type: 'code',
+            data: { syntax: 'javascript' },
+            nodes: [
+                {
+                    object: 'block',
+                    type: 'code-line',
+                    data: {},
+                    nodes: [
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: 'console.log("hello");', marks: [] }],
+                        },
+                    ],
+                },
+            ],
+        });
+    });
+
+    it('converts a single placeholder into an expression node', () => {
+        const result = convertCodeStringToBlock({
+            key: 'test2',
+            code: 'const config = { API_KEY: "$$__X-GITBOOK-PREFILL[visitor.claims.apiKey ?? "YOUR_API_KEY"]__$$" }',
+            syntax: 'javascript',
+        });
+
+        expect(result).toEqual({
+            key: 'test2',
+            object: 'block',
+            type: 'code',
+            data: { syntax: 'javascript' },
+            nodes: [
+                {
+                    object: 'block',
+                    type: 'code-line',
+                    data: {},
+                    nodes: [
+                        {
+                            object: 'text',
+                            leaves: [
+                                { object: 'leaf', text: 'const config = { API_KEY: "', marks: [] },
+                            ],
+                        },
+                        {
+                            object: 'inline',
+                            type: 'expression',
+                            data: { expression: 'visitor.claims.apiKey ?? "YOUR_API_KEY"' },
+                            isVoid: true,
+                        },
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: '" }', marks: [] }],
+                        },
+                    ],
+                },
+            ],
+        });
+    });
+
+    it('handles multiple placeholders in one line', () => {
+        const result = convertCodeStringToBlock({
+            key: 'test3',
+            code: 'let a = $$__X-GITBOOK-PREFILL[valA]__$$, b = $$__X-GITBOOK-PREFILL[valB]__$$;',
+            syntax: 'javascript',
+        });
+
+        expect(result).toEqual({
+            key: 'test3',
+            object: 'block',
+            type: 'code',
+            data: { syntax: 'javascript' },
+            nodes: [
+                {
+                    object: 'block',
+                    type: 'code-line',
+                    data: {},
+                    nodes: [
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: 'let a = ', marks: [] }],
+                        },
+                        {
+                            object: 'inline',
+                            type: 'expression',
+                            data: { expression: 'valA' },
+                            isVoid: true,
+                        },
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: ', b = ', marks: [] }],
+                        },
+                        {
+                            object: 'inline',
+                            type: 'expression',
+                            data: { expression: 'valB' },
+                            isVoid: true,
+                        },
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: ';', marks: [] }],
+                        },
+                    ],
+                },
+            ],
+        });
+    });
+
+    it('handles multiple placeholders across different lines', () => {
+        const result = convertCodeStringToBlock({
+            key: 'test4',
+            code: [
+                'const name = "$$__X-GITBOOK-PREFILL[visitor.claims.userName]__$$";',
+                'const age = $$__X-GITBOOK-PREFILL[visitor.claims.userAge]__$$;',
+                'console.log(name, age);',
+            ].join('\n'),
+            syntax: 'javascript',
+        });
+
+        expect(result).toEqual({
+            key: 'test4',
+            object: 'block',
+            type: 'code',
+            data: { syntax: 'javascript' },
+            nodes: [
+                {
+                    object: 'block',
+                    type: 'code-line',
+                    data: {},
+                    nodes: [
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: 'const name = "', marks: [] }],
+                        },
+                        {
+                            object: 'inline',
+                            type: 'expression',
+                            data: { expression: 'visitor.claims.userName' },
+                            isVoid: true,
+                        },
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: '";', marks: [] }],
+                        },
+                    ],
+                },
+                {
+                    object: 'block',
+                    type: 'code-line',
+                    data: {},
+                    nodes: [
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: 'const age = ', marks: [] }],
+                        },
+                        {
+                            object: 'inline',
+                            type: 'expression',
+                            data: { expression: 'visitor.claims.userAge' },
+                            isVoid: true,
+                        },
+                        {
+                            object: 'text',
+                            leaves: [{ object: 'leaf', text: ';', marks: [] }],
+                        },
+                    ],
+                },
+                {
+                    object: 'block',
+                    type: 'code-line',
+                    data: {},
+                    nodes: [
+                        {
+                            object: 'text',
+                            leaves: [
+                                { object: 'leaf', text: 'console.log(name, age);', marks: [] },
+                            ],
+                        },
+                    ],
+                },
+            ],
+        });
+    });
+
+    it('returns an empty code block for empty string', () => {
+        const result = convertCodeStringToBlock({
+            key: 'test5',
+            code: '',
+            syntax: 'javascript',
+        });
+
+        expect(result).toEqual({
+            key: 'test5',
+            object: 'block',
+            type: 'code',
+            data: { syntax: 'javascript' },
+            nodes: [
+                {
+                    object: 'block',
+                    type: 'code-line',
+                    data: {},
+                    nodes: [],
+                },
+            ],
+        });
+    });
+});

packages/gitbook/src/components/DocumentView/CodeBlock/utils.ts

@@ -0,0 +1,67 @@
+import type { DocumentBlockCode, DocumentBlockCodeLine } from '@gitbook/api';
+
+const PREFILL_WITH_EXPR_REGEX = /\$\$__X-GITBOOK-PREFILL\[(.+?)\]__\$\$/g;
+
+/**
+ * Convert a raw code string into a `DocumentBlockCode` object representation.
+ *
+ * Any placeholder of the form `$$__X-GITBOOK-PREFILL[<expression>]__$$` inside the code
+ * string is transformed into a DocumentInlineExpression node with its `data.expression` set to the
+ * extracted `<expression>`.
+ */
+export function convertCodeStringToBlock(args: {
+    key: string;
+    code: string;
+    syntax: string;
+}): DocumentBlockCode {
+    const { key, code, syntax } = args;
+    const lines = code.split('\n').map<DocumentBlockCodeLine>((line) => {
+        const nodes: DocumentBlockCodeLine['nodes'] = [];
+        let lastIndex = 0;
+
+        for (const match of line.matchAll(PREFILL_WITH_EXPR_REGEX)) {
+            const [placeholder, expression] = match;
+            const start = match.index ?? 0;
+
+            if (start > lastIndex) {
+                nodes.push({
+                    object: 'text',
+                    leaves: [{ object: 'leaf', text: line.slice(lastIndex, start), marks: [] }],
+                });
+            }
+
+            if (expression) {
+                nodes.push({
+                    object: 'inline',
+                    type: 'expression',
+                    data: { expression },
+                    isVoid: true,
+                });
+            }
+
+            lastIndex = start + placeholder.length;
+        }
+
+        if (lastIndex < line.length) {
+            nodes.push({
+                object: 'text',
+                leaves: [{ object: 'leaf', text: line.slice(lastIndex), marks: [] }],
+            });
+        }
+
+        return {
+            object: 'block',
+            type: 'code-line',
+            data: {},
+            nodes,
+        };
+    });
+
+    return {
+        key,
+        object: 'block',
+        type: 'code',
+        data: { syntax },
+        nodes: lines,
+    };
+}

packages/gitbook/src/components/DocumentView/Columns/Columns.tsx

@@ -1,17 +1,57 @@
 import { tcls } from '@/lib/tailwind';
 import { type DocumentBlockColumns, type Length, VerticalAlignment } from '@gitbook/api';
+import React from 'react';
 import type { BlockProps } from '../Block';
 import { Blocks } from '../Blocks';
 
 export function Columns(props: BlockProps<DocumentBlockColumns>) {
     const { block, style, ancestorBlocks, document, context } = props;
+
+    const columnWidths = React.useMemo(() => {
+        const widths = block.nodes.map((block) => {
+            const width = block.data.width;
+            return width ? getFractionalWidth(width) : 0;
+        });
+
+        const totalWidth = widths.reduce<number>((acc, width) => acc + width, 0);
+        // If not all columns widths are set, distribute the remaining widths as equally as we can
+        if (totalWidth < 1.0 && widths.some((width) => width === 0)) {
+            const unsetWidths = widths.filter((width) => width === 0);
+            let remainingWidth = 1.0 - totalWidth;
+            let unsetWidthsLength = unsetWidths.length;
+            widths.forEach((width, index) => {
+                if (width === 0) {
+                    const calculatedWidth =
+                        Math.round((remainingWidth / unsetWidthsLength) * COLUMN_DIVISIONS) /
+                        COLUMN_DIVISIONS;
+                    widths[index] = calculatedWidth; // Assign width to empty columns
+                    unsetWidthsLength--;
+                    remainingWidth -= calculatedWidth;
+                }
+            });
+        }
+        return widths;
+    }, [block.nodes]);
+
     return (
-        <div className={tcls('flex flex-col gap-x-8 md:flex-row', style)}>
-            {block.nodes.map((columnBlock) => {
+        <div
+            className={tcls(
+                'grid w-full grid-cols-1 gap-x-8 gap-y-4 md:grid-flow-col md:grid-cols-[repeat(var(--grid-slices),minmax(0,1fr))] md:grid-rows-1',
+                style
+            )}
+            style={{ '--grid-slices': COLUMN_DIVISIONS } as React.CSSProperties}
+        >
+            {block.nodes.map((columnBlock, index) => {
+                const columnWidth = columnWidths[index];
                 return (
                     <Column
                         key={columnBlock.key}
-                        width={columnBlock.data.width}
+                        width={
+                            columnBlock.data.width ??
+                            (columnWidth
+                                ? { value: columnWidth * 100, unit: '%' }
+                                : { value: 0, unit: '%' })
+                        }
                         verticalAlignment={columnBlock.data.verticalAlignment}
                     >
                         <Blocks
@@ -31,15 +71,16 @@ export function Columns(props: BlockProps<DocumentBlockColumns>) {
 
 export function Column(props: {
     children?: React.ReactNode;
-    width?: Length;
+    width: Length;
     verticalAlignment?: VerticalAlignment;
 }) {
     const { width, verticalAlignment } = props;
-    const { className, style } = transformLengthToCSS(width);
+    const { className, style } = transformLengthToCSS(width) ?? {};
     return (
         <div
             className={tcls(
                 'flex flex-col',
+                '@container/column',
                 (verticalAlignment === VerticalAlignment.Top || !verticalAlignment) &&
                     'justify-start',
                 verticalAlignment === VerticalAlignment.Middle && 'justify-center',
@@ -53,41 +94,25 @@ export function Column(props: {
     );
 }
 
-function transformLengthToCSS(length: Length | undefined) {
-    if (!length) {
-        return { className: ['md:w-full'] }; // default to full width if no length is specified
-    }
+const COLUMN_DIVISIONS = 12;
 
+export function transformLengthToCSS(length: Length) {
     if (typeof length === 'number') {
-        return { style: undefined }; // not implemented yet with non-percentage lengths
+        return; // not implemented yet with non-percentage lengths
     }
-
     if (length.unit === '%') {
         return {
-            className: [
-                'md:shrink-0',
-                COLUMN_WIDTHS[Math.round(length.value * 0.01 * (COLUMN_WIDTHS.length - 1))],
-            ],
+            className: 'md:flex-shrink-0 md:[grid-column:var(--grid-col)]',
+            style: {
+                '--grid-col': `auto / span ${Math.round(length.value * 0.01 * COLUMN_DIVISIONS)}`,
+            } as React.CSSProperties,
         };
     }
-
-    return { style: undefined }; // not implemented yet with non-percentage lengths
 }
 
-// Tailwind CSS classes for column widths.
-// The index of the array corresponds to the percentage width of the column.
-const COLUMN_WIDTHS = [
-    'md:w-0',
-    'md:w-1/12',
-    'md:w-2/12',
-    'md:w-3/12',
-    'md:w-4/12',
-    'md:w-5/12',
-    'md:w-6/12',
-    'md:w-7/12',
-    'md:w-8/12',
-    'md:w-9/12',
-    'md:w-10/12',
-    'md:w-11/12',
-    'md:w-full',
-];
+function getFractionalWidth(length: Length) {
+    if (typeof length === 'number') {
+        return 0;
+    }
+    return length.value / 100;
+}

packages/gitbook/src/components/DocumentView/Drawing.tsx

@@ -31,6 +31,7 @@ export async function Drawing(props: BlockProps<DocumentBlockDrawing>) {
                 alt="Drawing"
                 sizes={imageBlockSizes}
                 zoom
+                loading="lazy"
             />
         </Caption>
     );

packages/gitbook/src/components/DocumentView/Embed.tsx

@@ -60,6 +60,7 @@ export async function Embed(props: BlockProps<gitbookAPI.DocumentBlockEmbed>) {
                                 sources={{ light: { src: embed.icon } }}
                                 sizes={[{ width: 20 }]}
                                 resize={context.contentContext.imageResizer}
+                                loading="lazy"
                             />
                         ) : null
                     }

packages/gitbook/src/components/DocumentView/Expandable/Details.tsx

@@ -17,29 +17,34 @@ export function Details(props: {
 }) {
     const { children, id, className } = props;
 
-    const detailsRef = React.useRef<HTMLDetailsElement>(null);
+    const ref = React.useRef<HTMLDetailsElement>(null);
 
     const [openFromHash, setOpenFromHash] = React.useState(false);
 
     const hash = useHash();
+
     /**
      * Open the details element if the url hash refers to the id of the details element
      * or the id of some element contained within the details element.
      */
     React.useEffect(() => {
-        if (!hash || !detailsRef.current) {
+        if (!hash || !ref.current) {
             return;
         }
+
         if (hash === id) {
             setOpenFromHash(true);
+            return;
         }
+
         const activeElement = document.getElementById(hash);
-        setOpenFromHash(Boolean(activeElement && detailsRef.current?.contains(activeElement)));
+        const isOpen = Boolean(activeElement && ref.current.contains(activeElement));
+        setOpenFromHash(isOpen);
     }, [hash, id]);
 
     return (
         <details
-            ref={detailsRef}
+            ref={ref}
             id={id}
             open={props.open || openFromHash}
             className={tcls(

packages/gitbook/src/components/DocumentView/Expandable/Expandable.tsx

@@ -25,7 +25,11 @@ export function Expandable(props: BlockProps<DocumentBlockExpandable>) {
     id = context.getId ? context.getId(id) : id;
 
     return (
-        <Details id={id} open={context.mode === 'print'} className={style}>
+        <Details
+            id={id}
+            open={context.mode === 'print'}
+            className={tcls('scroll-mt-(--content-scroll-margin)', style)}
+        >
             <summary
                 className={tcls(
                     'cursor-pointer',
@@ -47,7 +51,7 @@ export function Expandable(props: BlockProps<DocumentBlockExpandable>) {
                     className={tcls(
                         'inline-block',
                         'size-3',
-                        'mr-2',
+                        'mr-3',
                         'mb-1',
                         'transition-transform',
                         'shrink-0',
@@ -92,7 +96,7 @@ export function Expandable(props: BlockProps<DocumentBlockExpandable>) {
                 document={document}
                 ancestorBlocks={[...ancestorBlocks, block]}
                 context={context}
-                style={['px-10', 'pb-5', 'space-y-4']}
+                style="space-y-4 px-10 pb-5"
             />
         </Details>
     );

packages/gitbook/src/components/DocumentView/File.tsx

@@ -1,10 +1,12 @@
 import { type DocumentBlockFile, SiteInsightsLinkPosition } from '@gitbook/api';
 
+import { t } from '@/intl/translate';
 import { getSimplifiedContentType } from '@/lib/files';
 import { resolveContentRef } from '@/lib/references';
-import { tcls } from '@/lib/tailwind';
 
-import { Link } from '../primitives';
+import { getSpaceLanguage } from '@/intl/server';
+import { Button, Link } from '../primitives';
+import { DownloadButton } from '../primitives/DownloadButton';
 import type { BlockProps } from './Block';
 import { Caption } from './Caption';
 import { FileIcon } from './FileIcon';
@@ -12,67 +14,70 @@ import { FileIcon } from './FileIcon';
 export async function File(props: BlockProps<DocumentBlockFile>) {
     const { block, context } = props;
 
-    const contentRef = context.contentContext
-        ? await resolveContentRef(block.data.ref, context.contentContext)
-        : null;
+    if (!context.contentContext) {
+        return null;
+    }
+
+    const contentRef = await resolveContentRef(block.data.ref, context.contentContext);
     const file = contentRef?.file;
 
     if (!file) {
         return null;
     }
 
+    const language = getSpaceLanguage(context.contentContext);
     const contentType = getSimplifiedContentType(file.contentType);
+    const insights = {
+        type: 'link_click' as const,
+        link: {
+            target: block.data.ref,
+            position: SiteInsightsLinkPosition.Content,
+        },
+    };
 
     return (
         <Caption {...props} withBorder>
-            <Link
-                href={file.downloadURL}
-                download={file.name}
-                insights={{
-                    type: 'link_click',
-                    link: {
-                        target: block.data.ref,
-                        position: SiteInsightsLinkPosition.Content,
-                    },
-                }}
-                className={tcls('group/file', 'flex', 'flex-row', 'items-center', 'px-5', 'py-3')}
-            >
-                <div
-                    className={tcls(
-                        'min-w-14',
-                        'mr-5',
-                        'pr-5',
-                        'flex',
-                        'flex-col',
-                        'items-center',
-                        'gap-1',
-                        'border-r',
-                        'border-tint-subtle'
-                    )}
-                >
-                    <div>
-                        <FileIcon
-                            contentType={contentType}
-                            className={tcls('size-5', 'text-primary')}
-                        />
+            <div className="flex flex-wrap items-center gap-5 px-5 py-3">
+                <div className="flex min-w-14 flex-col items-center gap-1 border-tint-subtle border-r pr-5">
+                    <FileIcon contentType={contentType} className="size-5 text-primary" />
+                    <div className="text-hint text-xs">{getHumanFileSize(file.size)}</div>
+                </div>
+                <div className="min-w-24 flex-1">
+                    <div className="text-base">
+                        <Link
+                            href={file.downloadURL}
+                            target="_blank"
+                            insights={insights}
+                            className="hover:underline"
+                        >
+                            {file.name}
+                        </Link>
                     </div>
-                    <div
-                        className={tcls(
-                            'text-xs',
-                            'text-tint',
-                            'group-hover/file:text-tint-strong'
-                        )}
+                    <div className="text-sm opacity-9 dark:opacity-8">{contentType}</div>
+                </div>
+                <div className="flex shrink-0 flex-wrap gap-2">
+                    <DownloadButton
+                        icon="download"
+                        size="xsmall"
+                        variant="secondary"
+                        downloadUrl={file.downloadURL}
+                        filename={file.name}
+                        insights={insights}
                     >
-                        {getHumanFileSize(file.size)}
-                    </div>
+                        {t(language, 'download')}
+                    </DownloadButton>
+                    <Button
+                        icon="arrow-up-right-from-square"
+                        size="xsmall"
+                        variant="secondary"
+                        href={file.downloadURL}
+                        target="_blank"
+                        insights={insights}
+                    >
+                        {t(language, 'open')}
+                    </Button>
                 </div>
-                <div>
-                    <div className={tcls('text-base')}>{file.name}</div>
-                    <div className={tcls('text-sm', 'opacity-9', 'dark:opacity-8')}>
-                        {contentType}
-                    </div>
-                </div>
-            </Link>
+            </div>
         </Caption>
     );
 }

packages/gitbook/src/components/DocumentView/FileIcon.tsx

@@ -9,7 +9,7 @@ export function FileIcon(props: { contentType: SimplifiedFileType | null; classN
     const { contentType, className } = props;
 
     switch (contentType) {
-        case 'pdf':
+        case 'PDF':
             return <Icon icon="file-pdf" className={className} />;
         case 'image':
             return <Icon icon="file-image" className={className} />;

packages/gitbook/src/components/DocumentView/HashLinkButton.tsx

@@ -1,6 +1,7 @@
 import { type ClassValue, tcls } from '@/lib/tailwind';
 import type { DocumentBlockHeading, DocumentBlockTabs } from '@gitbook/api';
 import { Icon } from '@gitbook/icons';
+import { Link } from '../primitives';
 import { getBlockTextStyle } from './spacing';
 
 /**
@@ -28,6 +29,8 @@ export function HashLinkButton(props: {
                 'h-[1em]',
                 'border-0',
                 'opacity-0',
+                'site-background',
+                'rounded',
                 'group-hover/hash:opacity-[0]',
                 'group-focus/hash:opacity-[0]',
                 'md:group-hover/hash:opacity-[1]',
@@ -35,10 +38,10 @@ export function HashLinkButton(props: {
                 className
             )}
         >
-            <a
+            <Link
                 href={`#${id}`}
                 aria-label={label}
-                className={tcls('inline-flex', 'h-full', 'items-start', textStyle.lineHeight)}
+                className={tcls('inline-flex h-full items-start', textStyle.lineHeight)}
             >
                 <Icon
                     icon="hashtag"
@@ -52,7 +55,7 @@ export function HashLinkButton(props: {
                         iconClassName
                     )}
                 />
-            </a>
+            </Link>
         </div>
     );
 }

packages/gitbook/src/components/DocumentView/Heading.tsx

@@ -36,7 +36,10 @@ export function Heading(props: BlockProps<DocumentBlockHeading>) {
             <HashLinkButton
                 id={id}
                 block={block}
-                className={tcls('-ml-6', 'pr-2')}
+                className={tcls(
+                    '-ml-6 pr-2',
+                    '[.flip-heading-hash_&]:order-last [.flip-heading-hash_&]:ml-1 [.flip-heading-hash_&]:pl-2'
+                )}
                 iconClassName={tcls('size-4')}
                 label="Direct link to heading"
             />

packages/gitbook/src/components/DocumentView/Hint.tsx

@@ -3,6 +3,8 @@ import { Icon, type IconName } from '@gitbook/icons';
 
 import { type ClassValue, tcls } from '@/lib/tailwind';
 
+import { getSpaceLanguage, tString } from '@/intl/server';
+import { languages } from '@/intl/translations';
 import { Block, type BlockProps } from './Block';
 import { Blocks } from './Blocks';
 import { getBlockTextStyle } from './spacing';
@@ -18,6 +20,12 @@ export function Hint({
     const firstLine = getBlockTextStyle(firstNode);
     const hasHeading = ['heading-1', 'heading-2', 'heading-3'].includes(firstNode.type);
 
+    const language = contextProps.context.contentContext
+        ? getSpaceLanguage(contextProps.context.contentContext)
+        : languages.en;
+
+    const label = tString(language, `hint_${block.data.style}`);
+
     return (
         <div
             className={tcls(
@@ -38,6 +46,8 @@ export function Hint({
 
                 style
             )}
+            aria-label={label}
+            role="note"
         >
             <div
                 className={tcls(
@@ -55,9 +65,9 @@ export function Hint({
             {hasHeading ? (
                 <Block
                     style={tcls(
-                        'w-full items-start py-4! pl-3 text-[1em] *:flex-none',
+                        'w-full items-start py-4! pl-3 text-[1em]! *:flex-none',
                         // Heading hash styles
-                        'flip-heading-hash pr-8',
+                        'flip-heading-hash pr-8 [&_.hash]:bg-transparent',
                         hintStyle.header
                     )}
                     ancestorBlocks={[...ancestorBlocks, block]}