fixup! wip handle device in use

The toast is enqueued on `ParticipantConnected`, which livekit-client
fires before the participant's track publications exist. At that
point `getTrackPublication(Camera)` is `undefined`, and the track
ref used by the toast is frozen that way — the toast never
re-subscribes to the participant.

Downstream effects:

* LiveKit's `useIsMuted` initializes to `false` when there is no
  publication, so the tile first paints with
  `data-lk-video-muted="false"`, which the stock CSS maps to
  placeholder `opacity: 0` — a blank box.
* Its effect then subscribes to `mutedObserver`, which defaults to
  `true` for the same situation, triggering a second render and
  only then starting the 200 ms fade-in. That render-effect-render
  transition is the visible lag behind the text.
* Because the track ref never updates, no `VideoTrack` ever mounts.
  When the camera is later subscribed, the placeholder fades out
  again, leaving the tile empty.

Re-derive the track ref inside the toast when the participant's
publications become available, so `useIsMuted` sees the real state
from the start and the tile renders the video (or a stable
placeholder) instead of a blank box.

CHANGELOG.md

@@ -10,7 +10,30 @@ and this project adheres to
 
 ### Added
 
-- ✨(frontend) introduce performance mode with auto-detection and telemetry
+- 📈(frontend) track errors when starting or stopping a recording
+- 🚸(frontend) explain camera-in-use failures on the join screen
+
+### Changed
+
+- ✨(backend) accept form-urlencoded on the user token endpoint
+- ✨(summary) configurable s3 region
+- ⬆️(frontend) upgrade i18next and react-i18next patch versions
+- ⬆️(frontend) upgrade posthog-js from 1.395.0 to 1.404.1
+- ⬆️(frontend) upgrade livekit-client and @livekit/components-react
+- 💄(frontend) increase the blur intensity
+
+### Fixed
+
+- 📝(docs) fix minor typos in comments and docstrings
+- ⬆️(backend) bump sqlparse from 0.5.5 to 0.6.0
+- ⬆️(mail) bump @html-to/text-cli from 0.6.0 to 0.6.1
+- 🐛(frontend) treat client-initiated connect aborts as events
+- 🐛(frontend) use state instead of a ref for MoreControls container
+- 🐛(frontend) stop init_virtual_background from firing on blur updates
+- 🐛(frontend) hoist mute confirmation dialog to VideoConference level
+- 🐛(frontend) fix joined notification tile no longer rendering properly
+
+## [1.27.0] - 2026-08-14
 
 ### Changed
 
@@ -25,6 +48,9 @@ and this project adheres to
 - 🐛(frontend) implement hysteresis band for the control bar layout
 - 🐛(frontend) fix toolbar ResizeObserver loop and alignment drift
 - 🐛(analytics) filter benign ResizeObserver loop error in Sentry/PostHog
+- 🐛(frontend) stop reporting screen-share denials as errors
+- 🐛(frontend) generalize screen-share error modal beyond macOS
+- 📈(frontend) stop double-reporting media device failures
 
 ## [1.26.0] - 2026-08-12
 

SECURITY.md

@@ -4,7 +4,7 @@
 
 Security is very important to us.
 
-If you have any issue regarding security, please disclose the information responsibly submiting [this form](https://vdp.numerique.gouv.fr/p/Send-a-report?lang=en) and not by creating an issue on the repository. You can also email us at visio@numerique.gouv.fr
+If you have any issue regarding security, please disclose the information responsibly by submitting [this form](https://vdp.numerique.gouv.fr/p/Send-a-report?lang=en) and not by creating an issue on the repository. You can also email us at visio@numerique.gouv.fr
 
 We appreciate your effort to make Visio more secure.
 

compose.yml

@@ -180,7 +180,7 @@ services:
     working_dir: /app
 
   node:
-    image: node:18
+    image: node:22
     user: "${DOCKER_USER:-1000}"
     environment:
       HOME: /tmp

docs/openapi.yaml

@@ -50,10 +50,24 @@ paths:
         
         The application must be authorized for the user's email domain.
         The returned token expires after a configured duration and must be refreshed by calling this endpoint again.
+
+        Request parameters may be sent either as "application/x-www-form-urlencoded"
+        (as specified by RFC 6749 for OAuth 2.0 token endpoints) or as "application/json".
       operationId: generateToken
       requestBody:
         required: true
         content:
+          application/x-www-form-urlencoded:
+            schema:
+              $ref: '#/components/schemas/TokenRequest'
+            examples:
+              tokenRequest:
+                summary: Request token for user delegation
+                value:
+                  client_id: "550e8400-e29b-41d4-a716-446655440000"
+                  client_secret: "1234567890abcdefghijklmnopqrstuvwxyz"
+                  grant_type: "client_credentials"
+                  scope: "user@example.com"
           application/json:
             schema:
               $ref: '#/components/schemas/TokenRequest'
@@ -117,6 +131,19 @@ paths:
                   summary: Domain not authorized
                   value:
                     error: "This application is not authorized for this email domain."
+        '415':
+          description: |
+            Unsupported media type. The request body must be sent as
+            "application/x-www-form-urlencoded" or "application/json".
+          content:
+            application/json:
+              schema:
+                $ref: '#/components/schemas/Error'
+              examples:
+                unsupportedMediaType:
+                  summary: Unsupported request content type
+                  value:
+                    detail: 'Unsupported media type "text/plain" in request.'
 
   /rooms:
     get:

src/agents/pyproject.toml

@@ -1,7 +1,7 @@
 
 [project]
 name = "agents"
-version = "1.26.0"
+version = "1.27.0"
 requires-python = ">=3.12"
 dependencies = [
     "livekit-agents==1.6.7",

src/agents/uv.lock

@@ -9,7 +9,7 @@ resolution-markers = [
 
 [[package]]
 name = "agents"
-version = "1.26.0"
+version = "1.27.0"
 source = { virtual = "." }
 dependencies = [
     { name = "livekit-agents" },

src/backend/core/external_api/viewsets.py

@@ -12,6 +12,9 @@ from rest_framework import decorators, mixins, viewsets
 from rest_framework import (
     exceptions as drf_exceptions,
 )
+from rest_framework import (
+    parsers as drf_parsers,
+)
 from rest_framework import (
     response as drf_response,
 )
@@ -41,6 +44,7 @@ class ApplicationViewSet(viewsets.ViewSet):
         methods=["post"],
         url_path="token",
         url_name="token",
+        parser_classes=[drf_parsers.FormParser, drf_parsers.JSONParser],
     )
     @FeatureFlag.require("application")
     def generate_jwt_access_token(self, request, *args, **kwargs):

src/backend/core/tests/test_external_api_token.py

@@ -5,6 +5,7 @@ Tests for external API /token endpoint
 # pylint: disable=W0621
 
 from unittest import mock
+from urllib.parse import urlencode
 
 import jwt
 import pytest
@@ -88,6 +89,155 @@ def test_api_applications_generate_token_success(settings):
     }
 
 
+def test_api_applications_generate_token_form_urlencoded(settings):
+    """The token endpoint should accept "application/x-www-form-urlencoded"
+    requests, as mandated by RFC 6749 (sections 3.2 and 4.4.2) for OAuth 2.0
+    token endpoints, so that standard OAuth 2.0 client libraries work
+    out of the box."""
+    UserFactory(email="user@example.com")
+    application = ApplicationFactory(
+        is_active=True,
+        scopes=[ApplicationScope.ROOMS_LIST, ApplicationScope.ROOMS_CREATE],
+    )
+
+    plain_secret = "test-secret-123"
+    application.client_secret = plain_secret
+    application.save()
+
+    client = APIClient()
+    response = client.post(
+        "/external-api/v1.0/application/token/",
+        (
+            f"client_id={application.client_id}"
+            f"&client_secret={plain_secret}"
+            "&grant_type=client_credentials"
+            "&scope=user%40example.com"
+        ),
+        content_type="application/x-www-form-urlencoded",
+    )
+
+    assert response.status_code == 200
+    assert "access_token" in response.data
+
+    response.data.pop("access_token")
+
+    assert response.data == {
+        "token_type": "Bearer",
+        "expires_in": settings.APPLICATION_JWT_EXPIRATION_SECONDS,
+        "scope": "rooms:list rooms:create",
+    }
+
+
+def test_api_applications_generate_token_form_urlencoded_invalid_credentials():
+    """Invalid credentials sent as form-urlencoded should be parsed and
+    rejected with 401, proving the request body is properly decoded."""
+    user = UserFactory(email="user@example.com")
+    application = ApplicationFactory(is_active=True)
+
+    client = APIClient()
+    response = client.post(
+        "/external-api/v1.0/application/token/",
+        urlencode(
+            {
+                "client_id": application.client_id,
+                "client_secret": "wrong-secret",
+                "grant_type": "client_credentials",
+                "scope": user.email,
+            }
+        ),
+        content_type="application/x-www-form-urlencoded",
+    )
+
+    assert response.status_code == 401
+    assert "Invalid credentials" in str(response.data)
+
+
+def test_api_applications_generate_token_form_urlencoded_missing_fields():
+    """Missing required fields in a form-urlencoded request should return
+    a 400 validation error, like for JSON requests."""
+    client = APIClient()
+    response = client.post(
+        "/external-api/v1.0/application/token/",
+        urlencode({"grant_type": "client_credentials"}),
+        content_type="application/x-www-form-urlencoded",
+    )
+
+    assert response.status_code == 400
+    for field in ("client_id", "client_secret", "scope"):
+        assert field in response.data
+
+
+def test_api_applications_generate_token_form_urlencoded_invalid_grant_type():
+    """An unsupported grant_type sent as form-urlencoded should return 400."""
+    user = UserFactory(email="user@example.com")
+    application = ApplicationFactory(is_active=True)
+
+    plain_secret = "test-secret-123"
+    application.client_secret = plain_secret
+    application.save()
+
+    client = APIClient()
+    response = client.post(
+        "/external-api/v1.0/application/token/",
+        urlencode(
+            {
+                "client_id": application.client_id,
+                "client_secret": plain_secret,
+                "grant_type": "authorization_code",
+                "scope": user.email,
+            }
+        ),
+        content_type="application/x-www-form-urlencoded",
+    )
+
+    assert response.status_code == 400
+    assert "grant_type" in response.data
+
+
+def test_api_applications_generate_token_form_urlencoded_special_characters():
+    """Percent-encoded reserved characters ("&", "=", "+", "%") in the
+    client_secret should survive form-urlencoded decoding."""
+    UserFactory(email="user@example.com")
+    application = ApplicationFactory(
+        is_active=True,
+        scopes=[ApplicationScope.ROOMS_LIST],
+    )
+
+    plain_secret = "s3cr3t&with=special+chars%42"
+    application.client_secret = plain_secret
+    application.save()
+
+    client = APIClient()
+    response = client.post(
+        "/external-api/v1.0/application/token/",
+        urlencode(
+            {
+                "client_id": application.client_id,
+                "client_secret": plain_secret,
+                "grant_type": "client_credentials",
+                "scope": "user@example.com",
+            }
+        ),
+        content_type="application/x-www-form-urlencoded",
+    )
+
+    assert response.status_code == 200
+    assert "access_token" in response.data
+
+
+def test_api_applications_generate_token_unsupported_media_type():
+    """Content types other than JSON and form-urlencoded should still be
+    rejected with 415 Unsupported Media Type."""
+    client = APIClient()
+    response = client.post(
+        "/external-api/v1.0/application/token/",
+        "client_id=x&client_secret=y&grant_type=client_credentials&scope=a@b.co",
+        content_type="text/plain",
+    )
+
+    assert response.status_code == 415
+
+
 def test_api_applications_generate_token_invalid_client_id():
     """Invalid client_id should return 401."""
     user = UserFactory(email="user@example.com")

src/backend/pyproject.toml

@@ -7,7 +7,7 @@ build-backend = "uv_build"
 
 [project]
 name = "meet"
-version = "1.26.0"
+version = "1.27.0"
 authors = [{ "name" = "DINUM", "email" = "dev@mail.numerique.gouv.fr" }]
 classifiers = [
     "Development Status :: 5 - Production/Stable",

src/backend/uv.lock

@@ -1187,7 +1187,7 @@ wheels = [
 
 [[package]]
 name = "meet"
-version = "1.26.0"
+version = "1.27.0"
 source = { editable = "." }
 dependencies = [
     { name = "aiohttp" },
@@ -2252,11 +2252,11 @@ wheels = [
 
 [[package]]
 name = "sqlparse"
-version = "0.5.5"
+version = "0.6.0"
 source = { registry = "https://pypi.org/simple" }
-sdist = { url = "https://files.pythonhosted.org/packages/90/76/437d71068094df0726366574cf3432a4ed754217b436eb7429415cf2d480/sqlparse-0.5.5.tar.gz", hash = "sha256:e20d4a9b0b8585fdf63b10d30066c7c94c5d7a7ec47c889a2d83a3caa93ff28e", size = 120815, upload-time = "2025-12-19T07:17:45.073Z" }
+sdist = { url = "https://files.pythonhosted.org/packages/5f/d3/3f06a1006f2261d1342aefb3c71eed02f5d4ca5bdbecd86ebc12ad38306e/sqlparse-0.6.0.tar.gz", hash = "sha256:113c35c75365ab9cc9c7231d68c6428fb11c085fc8e9eb1ad659b7ddbf6cd2b9", size = 178477, upload-time = "2026-08-13T19:16:06.396Z" }
 wheels = [
-    { url = "https://files.pythonhosted.org/packages/49/4b/359f28a903c13438ef59ebeee215fb25da53066db67b305c125f1c6d2a25/sqlparse-0.5.5-py3-none-any.whl", hash = "sha256:12a08b3bf3eec877c519589833aed092e2444e68240a3577e8e26148acc7b1ba", size = 46138, upload-time = "2025-12-19T07:17:46.573Z" },
+    { url = "https://files.pythonhosted.org/packages/d9/50/f00935da0ec7cbf325f8dc4f772ae46fbc7b672dd62876e73f0a94adda57/sqlparse-0.6.0-py3-none-any.whl", hash = "sha256:b861c0288ce2fa56209a9a6412d2e066ac664b3873b89c26c9d8415e8e32996f", size = 50070, upload-time = "2026-08-13T19:16:04.062Z" },
 ]
 
 [[package]]

src/frontend/package-lock.json

@@ -1,18 +1,18 @@
 {
   "name": "meet",
-  "version": "1.26.0",
+  "version": "1.27.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "meet",
-      "version": "1.26.0",
+      "version": "1.27.0",
       "dependencies": {
         "@fontsource-variable/atkinson-hyperlegible-next": "5.2.6",
         "@fontsource-variable/lexend": "5.2.11",
         "@fontsource/opendyslexic": "5.2.5",
         "@libreaudio/la-call": "0.1.4",
-        "@livekit/components-react": "2.9.21",
+        "@livekit/components-react": "2.9.23",
         "@livekit/components-styles": "1.2.0",
         "@livekit/track-processors": "0.7.2",
         "@mediapipe/tasks-vision": "0.10.14",
@@ -24,17 +24,17 @@
         "crisp-sdk-web": "1.1.2",
         "hoofd": "1.7.3",
         "humanize-duration": "3.33.2",
-        "i18next": "26.3.1",
+        "i18next": "26.3.6",
         "i18next-browser-languagedetector": "8.2.1",
         "i18next-parser": "9.4.0",
         "i18next-resources-to-backend": "1.2.1",
-        "livekit-client": "2.20.0",
+        "livekit-client": "2.21.0",
-        "posthog-js": "1.395.0",
+        "posthog-js": "1.404.1",
         "react": "18.3.1",
         "react-aria": "3.50.0",
         "react-aria-components": "1.19.0",
         "react-dom": "18.3.1",
-        "react-i18next": "17.0.8",
+        "react-i18next": "17.0.10",
         "react-stately": "3.48.0",
         "use-sound": "5.0.0",
         "valtio": "2.3.2",
@@ -742,28 +742,28 @@
       }
     },
     "node_modules/@floating-ui/core": {
-      "version": "1.7.5",
+      "version": "1.8.0",
-      "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.7.5.tgz",
+      "resolved": "https://registry.npmjs.org/@floating-ui/core/-/core-1.8.0.tgz",
-      "integrity": "sha512-1Ih4WTWyw0+lKyFMcBHGbb5U5FtuHJuujoyyr5zTaWS5EYMeT6Jb2AuDeftsCsEuchO+mM2ij5+q9crhydzLhQ==",
+      "integrity": "sha512-0CIZ5itps/8x7BG8dEIhs53BvCUH2PCoogtakwRTut+Arm58sJooJ0AuZhLw2HJYIR5cMLNPBSS728sPho2khQ==",
       "license": "MIT",
       "dependencies": {
-        "@floating-ui/utils": "^0.2.11"
+        "@floating-ui/utils": "^0.2.12"
       }
     },
     "node_modules/@floating-ui/dom": {
-      "version": "1.7.4",
+      "version": "1.7.6",
-      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.7.4.tgz",
+      "resolved": "https://registry.npmjs.org/@floating-ui/dom/-/dom-1.7.6.tgz",
-      "integrity": "sha512-OOchDgh4F2CchOX94cRVqhvy7b3AFb+/rQXyswmzmGakRfkMgoWVjfnLWkRirfLEfuD4ysVW16eXzwt3jHIzKA==",
+      "integrity": "sha512-9gZSAI5XM36880PPMm//9dfiEngYoC6Am2izES1FF406YFsjvyBMmeJ2g4SAju3xWwtuynNRFL2s9hgxpLI5SQ==",
       "license": "MIT",
       "dependencies": {
-        "@floating-ui/core": "^1.7.3",
+        "@floating-ui/core": "^1.7.5",
-        "@floating-ui/utils": "^0.2.10"
+        "@floating-ui/utils": "^0.2.11"
       }
     },
     "node_modules/@floating-ui/utils": {
-      "version": "0.2.11",
+      "version": "0.2.12",
-      "resolved": "https://registry.npmjs.org/@floating-ui/utils/-/utils-0.2.11.tgz",
+      "resolved": "https://registry.npmjs.org/@floating-ui/utils/-/utils-0.2.12.tgz",
-      "integrity": "sha512-RiB/yIh78pcIxl6lLMG0CgBXAZ2Y0eVHqMPYugu+9U0AeT6YBeiJpf7lbdJNIugFP5SIjwNRgo4DhR1Qxi26Gg==",
+      "integrity": "sha512-HpCo8tmWzLVad5s2d19EhAz5zqrrQ6s69qd6moPMQvkOuSwDT1YgRfWSVuc4ennqrgv3OHppiOGMQ7oC13yIww==",
       "license": "MIT"
     },
     "node_modules/@fontsource-variable/atkinson-hyperlegible-next": {
@@ -966,12 +966,12 @@
       "license": "GPL-3.0+"
     },
     "node_modules/@livekit/components-core": {
-      "version": "0.12.13",
+      "version": "0.12.14",
-      "resolved": "https://registry.npmjs.org/@livekit/components-core/-/components-core-0.12.13.tgz",
+      "resolved": "https://registry.npmjs.org/@livekit/components-core/-/components-core-0.12.14.tgz",
-      "integrity": "sha512-DQmi84afHoHjZ62wm8y+XPNIDHTwFHAltjd3lmyXj8UZHOY7wcza4vFt1xnghJOD5wLRY58L1dkAgAw59MgWvw==",
+      "integrity": "sha512-6OKP/1Ok2fCZewDLKd3SzaTb7KvfZl/6hjggI+TgUdhp0Y7HBg3+tHA7YmhZRc0BO8wIyVy4VgTPn7qkLHt2nQ==",
       "license": "Apache-2.0",
       "dependencies": {
-        "@floating-ui/dom": "1.7.4",
+        "@floating-ui/dom": "1.7.6",
         "loglevel": "1.9.1",
         "rxjs": "7.8.2"
       },
@@ -979,17 +979,17 @@
         "node": ">=18"
       },
       "peerDependencies": {
-        "livekit-client": "^2.17.2",
+        "livekit-client": "^2.20.1",
         "tslib": "^2.6.2"
       }
     },
     "node_modules/@livekit/components-react": {
-      "version": "2.9.21",
+      "version": "2.9.23",
-      "resolved": "https://registry.npmjs.org/@livekit/components-react/-/components-react-2.9.21.tgz",
+      "resolved": "https://registry.npmjs.org/@livekit/components-react/-/components-react-2.9.23.tgz",
-      "integrity": "sha512-6hU9VucJJL+gAhilNGe4MBCDCZVk64qyjP9Ck86krvOIdVU76WeWksddg1MYUP10AlUwwrfD7davz41pJTcMJw==",
+      "integrity": "sha512-clO+0g/u3YBpuOvnAjUSAJBH/o7w+RpUAseswjiSML9rHrXlTUhwBNm8LPk+qN5GOU3A6lzsNnFYVpUHUBVOkg==",
       "license": "Apache-2.0",
       "dependencies": {
-        "@livekit/components-core": "0.12.13",
+        "@livekit/components-core": "0.12.14",
         "clsx": "2.1.1",
         "events": "^3.3.0",
         "jose": "^6.0.12",
@@ -999,8 +999,8 @@
         "node": ">=18"
       },
       "peerDependencies": {
-        "@livekit/krisp-noise-filter": "^0.2.12 || ^0.3.0",
+        "@livekit/krisp-noise-filter": "^0.2.12 || ^0.3.0 || ^0.4.0",
-        "livekit-client": "^2.18.2",
+        "livekit-client": "^2.20.1",
         "react": ">=18",
         "react-dom": ">=18",
         "tslib": "^2.6.2"
@@ -1027,9 +1027,9 @@
       "license": "Apache-2.0"
     },
     "node_modules/@livekit/protocol": {
-      "version": "1.46.6",
+      "version": "1.50.4",
-      "resolved": "https://registry.npmjs.org/@livekit/protocol/-/protocol-1.46.6.tgz",
+      "resolved": "https://registry.npmjs.org/@livekit/protocol/-/protocol-1.50.4.tgz",
-      "integrity": "sha512-upzlHP1vi/kZ/QqALZTFskQ0ifqc2f15RKucHYOsIHJsaXvEYanG75mAb7o+Yomfs4XhQ4BaRsdY+TFHXpaqrg==",
+      "integrity": "sha512-L1uggNQAqyY21smQY8AllyOYbcv9Me9TaxwuLytL1R8ck9nbYPmQLNwEDi3pOFGAMa5F8I2nUi2Jc59W5awxlA==",
       "license": "Apache-2.0",
       "dependencies": {
         "@bufbuild/protobuf": "^1.10.0"
@@ -1720,18 +1720,18 @@
       "license": "MIT"
     },
     "node_modules/@posthog/core": {
-      "version": "1.39.5",
+      "version": "1.48.3",
-      "resolved": "https://registry.npmjs.org/@posthog/core/-/core-1.39.5.tgz",
+      "resolved": "https://registry.npmjs.org/@posthog/core/-/core-1.48.3.tgz",
-      "integrity": "sha512-M8Imv7ZmmrT6derMOFXhX3c5VKKO2oG6OX70ozLnNpKJV73sNIhYmRX/raa90saF7OA0YmWWJlpKje3irGAyQQ==",
+      "integrity": "sha512-kwVDVvwtCTXctApA2tpnwDjDDan8LrkwCW1Wv6PABaVs/s5ahbQ9W3pvdXcqr71HCuqukSA1jp7MySczebubGg==",
       "license": "MIT",
       "dependencies": {
-        "@posthog/types": "^1.392.0"
+        "@posthog/types": "^1.405.0"
       }
     },
     "node_modules/@posthog/types": {
-      "version": "1.392.0",
+      "version": "1.405.0",
-      "resolved": "https://registry.npmjs.org/@posthog/types/-/types-1.392.0.tgz",
+      "resolved": "https://registry.npmjs.org/@posthog/types/-/types-1.405.0.tgz",
-      "integrity": "sha512-nctNujXL3FC1v99FktaTMSugSD9ZOZekEpahUSafkU2TSvW+XGKNkQZbokuJtiWvPBK208dwMJva8UfBkChqpw==",
+      "integrity": "sha512-4rZ/taVXKQxs9Jrf7ZjlCRgrOSL69oKAgIWJQa5kRNJ6wll1UANbrJTSY+Su1e88LIG4zZVjKKKjyQHCkHdHcw==",
       "license": "MIT"
     },
     "node_modules/@react-aria/overlays": {
@@ -4393,11 +4393,14 @@
       }
     },
     "node_modules/core-js": {
-      "version": "3.39.0",
+      "version": "3.50.0",
-      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.39.0.tgz",
+      "resolved": "https://registry.npmjs.org/core-js/-/core-js-3.50.0.tgz",
-      "integrity": "sha512-raM0ew0/jJUqkJ0E6e8UDtl+y/7ktFivgWvqw8dNSQeNWoSDLvQ1H/RN3aPXB9tBd4/FhyR4RDPGhsNIMsAn7g==",
+      "integrity": "sha512-BRWgOLKkFeCgRudR6zrs8p9XJZcE14grzKMMssoYrk6krtuEZ7MTKPIY5RzOnqsEKIR9kst7wNzphttraT+Yqw==",
       "hasInstallScript": true,
       "license": "MIT",
+      "engines": {
+        "node": "*"
+      },
       "funding": {
         "type": "opencollective",
         "url": "https://opencollective.com/core-js"
@@ -6400,9 +6403,9 @@
       }
     },
     "node_modules/i18next": {
-      "version": "26.3.1",
+      "version": "26.3.6",
-      "resolved": "https://registry.npmjs.org/i18next/-/i18next-26.3.1.tgz",
+      "resolved": "https://registry.npmjs.org/i18next/-/i18next-26.3.6.tgz",
-      "integrity": "sha512-txQqd5EULsqEh9OJqRH15aCaOuy/nLJyhw5EHCSKLKJE1aBbb3Zve2+uQIxgWhPm1QqUQoWyQBm2kfmmIrzkcQ==",
+      "integrity": "sha512-Bu5Z2nAXgfVyM8xvW3jk9EKRIuX37PudsrBViThNFx7CR7aaYTpP01cxNB/E4c4UUzTDiAZRstEhsRfPOL/8xA==",
       "funding": [
         {
           "type": "individual",
@@ -6419,7 +6422,7 @@
       ],
       "license": "MIT",
       "peerDependencies": {
-        "typescript": "^5 || ^6"
+        "typescript": "^5 || ^6 || ^7"
       },
       "peerDependenciesMeta": {
         "typescript": {
@@ -8109,20 +8112,20 @@
       "license": "MIT"
     },
     "node_modules/livekit-client": {
-      "version": "2.20.0",
+      "version": "2.21.0",
-      "resolved": "https://registry.npmjs.org/livekit-client/-/livekit-client-2.20.0.tgz",
+      "resolved": "https://registry.npmjs.org/livekit-client/-/livekit-client-2.21.0.tgz",
-      "integrity": "sha512-RIJcpvBmOmwz3jTj3rmdY6Dzr55HrhcaJjMgY+HSmoEM+yIRyA40m7r8UKv0hnZWM3z/AYhP1q8C8ciz5UWFKQ==",
+      "integrity": "sha512-RBUhPkV/sl1nzl8lokVlK5uATPwn0AlsudCBZXissw/kDl9yz8ac4pNJ43iPpMVoHOeBYH/BZ3vUC1adqa/zFQ==",
       "license": "Apache-2.0",
       "dependencies": {
         "@livekit/mutex": "1.1.1",
-        "@livekit/protocol": "1.46.6",
+        "@livekit/protocol": "1.50.4",
         "events": "^3.3.0",
         "jose": "^6.1.0",
         "loglevel": "^1.9.2",
         "sdp-transform": "^2.15.0",
         "tslib": "2.8.1",
         "typed-emitter": "^2.1.0",
-        "webrtc-adapter": "9.0.5"
+        "webrtc-adapter": "9.0.6"
       },
       "peerDependencies": {
         "@types/dom-mediacapture-record": "^1"
@@ -9120,17 +9123,17 @@
       "license": "MIT"
     },
     "node_modules/posthog-js": {
-      "version": "1.395.0",
+      "version": "1.404.1",
-      "resolved": "https://registry.npmjs.org/posthog-js/-/posthog-js-1.395.0.tgz",
+      "resolved": "https://registry.npmjs.org/posthog-js/-/posthog-js-1.404.1.tgz",
-      "integrity": "sha512-5iTb00CGt2eQUUiBQysQiX89RAbCN6wK2sDNzvs9zv0alaY8mJ0ZySrUD3LQ+XyLhgM5pCpacBuUwChqiYDLDw==",
+      "integrity": "sha512-ck/HOMKuZ6yefUk5OX+h2s9mUWBsnu0mGDUAWjIwAmQQrloZPShzOhOWuEuZQuMnCKORBFRVGsBAuzsl66cBJA==",
-      "license": "SEE LICENSE IN LICENSE",
+      "license": "(Apache-2.0 AND MIT)",
       "dependencies": {
-        "@posthog/core": "^1.38.0",
+        "@posthog/core": "^1.43.1",
-        "@posthog/types": "^1.391.1",
+        "@posthog/types": "^1.397.0",
-        "core-js": "^3.38.1",
+        "core-js": "^3.49.0",
         "dompurify": "^3.3.2",
         "fflate": "^0.4.8",
-        "preact": "^10.29.2",
+        "preact": "^10.29.3",
         "query-selector-shadow-dom": "^1.0.1",
         "web-vitals": "^5.3.0"
       }
@@ -9422,9 +9425,9 @@
       }
     },
     "node_modules/react-i18next": {
-      "version": "17.0.8",
+      "version": "17.0.10",
-      "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-17.0.8.tgz",
+      "resolved": "https://registry.npmjs.org/react-i18next/-/react-i18next-17.0.10.tgz",
-      "integrity": "sha512-0ooKbGLU8JXhe1zwpQUWIeXSgLPOfwJmgheWRIUpcoA0CpyabpGhayjdG+/eA5esC1AQ8h2jWpXjJfzQzeDOCw==",
+      "integrity": "sha512-XneHftyYA774MJkkccSkZ5oKrUpCnXIPmxio3wemqrVzCRLWiGXOMbIzObrer03fNDEnm8g8R5yYls4HcE+esg==",
       "license": "MIT",
       "dependencies": {
         "@babel/runtime": "^7.29.2",
@@ -9434,7 +9437,7 @@
       "peerDependencies": {
         "i18next": ">= 26.2.0",
         "react": ">= 16.8.0",
-        "typescript": "^5 || ^6"
+        "typescript": "^5 || ^6 || ^7"
       },
       "peerDependenciesMeta": {
         "react-dom": {
@@ -11645,9 +11648,9 @@
       "license": "Apache-2.0"
     },
     "node_modules/webrtc-adapter": {
-      "version": "9.0.5",
+      "version": "9.0.6",
-      "resolved": "https://registry.npmjs.org/webrtc-adapter/-/webrtc-adapter-9.0.5.tgz",
+      "resolved": "https://registry.npmjs.org/webrtc-adapter/-/webrtc-adapter-9.0.6.tgz",
-      "integrity": "sha512-U9vjByy/sK2OMXu5mmfuZFKTMIUQe34c0JXRO+oDrxJTsntdYT2iIFwYMOV7HhMTuktcZLGf2W1N/OcSf9ssWg==",
+      "integrity": "sha512-CHbl2ZQbxx164IgWRgzJno4hWtM4tFbRam1QfI3Yxhs3w/DvqluVxVWeXs3oL5/fbGkSNLKo0Ty5MgUWceNhog==",
       "license": "BSD-3-Clause",
       "dependencies": {
         "sdp": "^3.2.0"

src/frontend/package.json

@@ -1,7 +1,7 @@
 {
   "name": "meet",
   "private": true,
-  "version": "1.26.0",
+  "version": "1.27.0",
   "type": "module",
   "scripts": {
     "dev": "panda codegen && vite",
@@ -19,7 +19,7 @@
     "@fontsource-variable/lexend": "5.2.11",
     "@fontsource/opendyslexic": "5.2.5",
     "@libreaudio/la-call": "0.1.4",
-    "@livekit/components-react": "2.9.21",
+    "@livekit/components-react": "2.9.23",
     "@livekit/components-styles": "1.2.0",
     "@livekit/track-processors": "0.7.2",
     "@mediapipe/tasks-vision": "0.10.14",
@@ -31,17 +31,17 @@
     "crisp-sdk-web": "1.1.2",
     "hoofd": "1.7.3",
     "humanize-duration": "3.33.2",
-    "i18next": "26.3.1",
+    "i18next": "26.3.6",
     "i18next-browser-languagedetector": "8.2.1",
     "i18next-parser": "9.4.0",
     "i18next-resources-to-backend": "1.2.1",
-    "livekit-client": "2.20.0",
+    "livekit-client": "2.21.0",
-    "posthog-js": "1.395.0",
+    "posthog-js": "1.404.1",
     "react": "18.3.1",
     "react-aria": "3.50.0",
     "react-aria-components": "1.19.0",
     "react-dom": "18.3.1",
-    "react-i18next": "17.0.8",
+    "react-i18next": "17.0.10",
     "react-stately": "3.48.0",
     "use-sound": "5.0.0",
     "valtio": "2.3.2",

src/frontend/src/features/analytics/hardware.ts

@@ -1,71 +0,0 @@
-export interface HardwareSnapshot {
-  /** navigator.hardwareConcurrency — logical CPU cores. */
-  cpu_cores: number | null
-  /** navigator.deviceMemory — RAM in GiB, bucketed by the browser (Chromium only). */
-  device_memory_gb: number | null
-  /** performance.memory.jsHeapSizeLimit in MB (Chromium only, non-standard). */
-  js_heap_limit_mb: number | null
-  /** performance.memory.usedJSHeapSize in MB (Chromium only, non-standard). */
-  js_heap_used_mb: number | null
-  /** Battery level 0..1 via navigator.getBattery() (Chromium only). */
-  battery_level: number | null
-  /** Whether the device is plugged in, via navigator.getBattery(). */
-  battery_charging: boolean | null
-}
-
-const BATTERY_TIMEOUT_MS = 1_000
-
-const toMb = (bytes: unknown): number | null =>
-  typeof bytes === 'number' ? Math.round(bytes / (1024 * 1024)) : null
-
-export const collectHardwareSnapshot = async (): Promise<HardwareSnapshot> => {
-  const snapshot: HardwareSnapshot = {
-    cpu_cores: null,
-    device_memory_gb: null,
-    js_heap_limit_mb: null,
-    js_heap_used_mb: null,
-    battery_level: null,
-    battery_charging: null,
-  }
-
-  try {
-    snapshot.cpu_cores = navigator.hardwareConcurrency ?? null
-
-    const nav = navigator as Navigator & {
-      deviceMemory?: number
-      userAgentData?: { mobile?: boolean; platform?: string }
-      getBattery?: () => Promise<{ level: number; charging: boolean }>
-    }
-
-    snapshot.device_memory_gb = nav.deviceMemory ?? null
-
-    const memory = (
-      performance as Performance & {
-        memory?: { jsHeapSizeLimit?: number; usedJSHeapSize?: number }
-      }
-    ).memory
-    snapshot.js_heap_limit_mb = toMb(memory?.jsHeapSizeLimit)
-    snapshot.js_heap_used_mb = toMb(memory?.usedJSHeapSize)
-
-    if (typeof nav.getBattery === 'function') {
-      // getBattery can hang on some platforms — don't let it delay the event.
-      let timeoutId: ReturnType<typeof setTimeout> | undefined
-      const battery = await Promise.race([
-        nav.getBattery(),
-        new Promise<null>((resolve) => {
-          timeoutId = setTimeout(() => resolve(null), BATTERY_TIMEOUT_MS)
-        }),
-      ])
-        .catch(() => null)
-        .finally(() => clearTimeout(timeoutId))
-      if (battery) {
-        snapshot.battery_level = battery.level
-        snapshot.battery_charging = battery.charging
-      }
-    }
-  } catch {
-    // telemetry must never break the app
-  }
-
-  return snapshot
-}

src/frontend/src/features/analytics/telemetry.ts

@@ -23,6 +23,7 @@ export type LogCode =
   | 'livekit_room_error'
   | 'device_switch_failure'
   | 'permission_poll_failure'
+  | 'media_devices_error_event'
   // non-media families
   | 'participant_mute_api_failure'
   | 'permissions_api_failure'
@@ -30,7 +31,6 @@ export type LogCode =
   | 'clipboard_failure'
   | 'fullscreen_failure'
   | 'publish_sources_failure'
-  | 'performance_mode_failure'
   | 'disconnect_failure'
   | 'generic_failure'
 
@@ -137,7 +137,9 @@ export const captureMediaEvent = async (
     | 'media-device-topology'
     | 'media-device-success'
     | 'device-not-found'
+    | 'device-in-use'
     | 'permissions-denied'
+    | 'screen-share-permission-denied'
     | 'silent-mic-detected'
     | 'silent-mic-analyser-unavailable'
     | 'silent-mic-recovered'

src/frontend/src/features/chat/components/ChatProvider.tsx

@@ -23,7 +23,7 @@ export const ChatProvider = () => {
     resetChatStore()
   }, [])
 
-  // Tigger the message notification (temporary)
+  // Trigger the message notification (temporary)
   useEffect(() => {
     // TEMPORARY: This is a brittle workaround that relies on message count tracking
     // due to recent LiveKit useChat changes breaking the previous implementation

src/frontend/src/features/notifications/NotificationDuration.ts

@@ -3,7 +3,6 @@ export enum ToastDuration {
   MEDIUM = 4000,
   LONG = 5000,
   EXTRA_LONG = 7000,
-  UNDO_WINDOW = 30000,
 }
 
 export const NotificationDuration = {
@@ -16,5 +15,4 @@ export const NotificationDuration = {
   REACTION_RECEIVED: ToastDuration.SHORT,
   RECORDING_REQUESTED: ToastDuration.LONG,
   ROLE_CHANGED: ToastDuration.LONG,
-  CPU_CONSTRAINED: ToastDuration.UNDO_WINDOW,
 } as const

src/frontend/src/features/notifications/NotificationType.ts

@@ -18,5 +18,4 @@ export enum NotificationType {
   RecordingSaving = 'recordingSaving',
   PermissionsRemoved = 'permissionsRemoved',
   RoleChanged = 'roleChanged',
-  CpuConstrained = 'cpuConstrained',
 }

src/frontend/src/features/notifications/components/ToastCpuConstrained.tsx

@@ -1,69 +0,0 @@
-import { useToast } from 'react-aria'
-import { useRef } from 'react'
-import { RiCloseLine } from '@remixicon/react'
-
-import { type ToastProps } from './Toast'
-import { HStack, VStack } from '@/styled-system/jsx'
-import { useTranslation } from 'react-i18next'
-import { Button, Text } from '@/primitives'
-import { css } from '@/styled-system/css'
-import { StyledToastContainer } from './StyledToastContainer'
-import { disablePerformanceMode } from '@/stores/performanceMode'
-import { captureEvent } from '@/features/analytics/telemetry'
-
-export function ToastCpuConstrained({ state, ...props }: Readonly<ToastProps>) {
-  const { t } = useTranslation('notifications', {
-    keyPrefix: 'cpuConstrained',
-  })
-  const ref = useRef(null)
-  const { toastProps, contentProps, closeButtonProps } = useToast(
-    props,
-    state,
-    ref
-  )
-  const toast = props.toast
-
-  const handleKeepQuality = () => {
-    captureEvent('cpu-constrained-degradation-cancelled')
-    disablePerformanceMode({ declinedAuto: true })
-    state.close(toast.key)
-  }
-
-  return (
-    <StyledToastContainer {...toastProps} ref={ref}>
-      <HStack alignItems="start" gap="0.5rem" padding={14}>
-        <VStack
-          justify="start"
-          alignItems="self-start"
-          {...contentProps}
-          maxWidth="370px"
-          gap="0.75rem"
-        >
-          <Text
-            margin={false}
-            className={css({
-              wordBreak: 'break-word',
-              overflowWrap: 'break-word',
-              whiteSpace: 'normal',
-            })}
-          >
-            {t('message')}
-          </Text>
-          <Button
-            size="sm"
-            variant="text"
-            className={css({
-              color: 'primary.300',
-            })}
-            onPress={() => handleKeepQuality()}
-          >
-            {t('keepQuality')}
-          </Button>
-        </VStack>
-        <Button square size="sm" invisible {...closeButtonProps}>
-          <RiCloseLine size={18} color="white" />
-        </Button>
-      </HStack>
-    </StyledToastContainer>
-  )
-}

src/frontend/src/features/notifications/components/ToastJoined.tsx

@@ -1,5 +1,5 @@
 import { useToast } from 'react-aria'
-import { useRef } from 'react'
+import { useMemo, useRef } from 'react'
 import { Button as RACButton } from 'react-aria-components'
 import { Track } from 'livekit-client'
 import Source = Track.Source
@@ -11,6 +11,7 @@ import { Div } from '@/primitives'
 import { useTranslation } from 'react-i18next'
 import { StyledToastContainer } from './StyledToastContainer'
 import { setPinnedTrack } from '@/stores/layout'
+import { useParticipantTracks } from '@livekit/components-react'
 
 const ClickableToast = styled(RACButton, {
   base: {
@@ -30,13 +31,17 @@ export function ToastJoined({ state, ...props }: Readonly<ToastProps>) {
   )
   const participant = props.toast.content.participant
 
-  if (!participant) return
+  const [cameraTrack] = useParticipantTracks(
+    [Source.Camera],
+    participant?.identity
+  )
 
-  const trackReference = {
+  const trackReference = useMemo(
-    participant,
+    () => cameraTrack ?? { participant, source: Source.Camera },
-    publication: participant.getTrackPublication(Source.Camera),
+    [cameraTrack, participant]
-    source: Source.Camera,
+  )
-  }
+
+  if (!participant) return
 
   return (
     <StyledToastContainer {...toastProps} ref={ref}>

src/frontend/src/features/notifications/components/ToastRegion.tsx

@@ -15,7 +15,6 @@ import { ToastPermissionsRemoved } from './ToastPermissionsRemoved'
 import { ToastRecordingRequest } from './ToastRecordingRequest'
 import { ToastAutoMuteLargeRoom } from './ToastAutoMuteLargeRoom'
 import { ToastRoleChanged } from '@/features/notifications/components/ToastRoleChanged'
-import { ToastCpuConstrained } from './ToastCpuConstrained'
 
 interface ToastRegionProps extends AriaToastRegionProps {
   state: ToastState<ToastData>
@@ -75,9 +74,6 @@ const renderToast = (
     case NotificationType.RoleChanged:
       return <ToastRoleChanged key={toast.key} toast={toast} state={state} />
 
-    case NotificationType.CpuConstrained:
-      return <ToastCpuConstrained key={toast.key} toast={toast} state={state} />
-
     default:
       return <Toast key={toast.key} toast={toast} state={state} />
   }

src/frontend/src/features/notifications/utils.ts

@@ -15,15 +15,6 @@ export const notifyAutoMutedOnJoin = () => {
   )
 }
 
-export const notifyCpuConstrained = () => {
-  toastQueue.add(
-    {
-      type: NotificationType.CpuConstrained,
-    },
-    { timeout: NotificationDuration.CPU_CONSTRAINED }
-  )
-}
-
 export const showLowerHandToast = (
   participant: Participant,
   onClose: () => void

src/frontend/src/features/participantTile/components/participantTileFocus/MuteButton.tsx

@@ -1,11 +1,9 @@
 import { Participant, Track } from 'livekit-client'
 import { useTranslation } from 'react-i18next'
 import { useTrackMutedIndicator } from '@livekit/components-react'
-import { useMuteParticipant } from '@/features/rooms/api/muteParticipant'
-import { useState } from 'react'
 import { Button } from '@/primitives'
 import { RiMicLine, RiMicOffLine } from '@remixicon/react'
-import { MuteAlertDialog } from '@/features/rooms/livekit/components/MuteAlertDialog'
+import { openMuteDialog } from '@/stores/muteDialog'
 
 export const MuteButton = ({ participant }: { participant: Participant }) => {
   const { t } = useTranslation('rooms', { keyPrefix: 'participantTileFocus' })
@@ -15,31 +13,18 @@ export const MuteButton = ({ participant }: { participant: Participant }) => {
     source: Track.Source.Microphone,
   })
 
-  const { muteParticipant } = useMuteParticipant()
-  const [isAlertOpen, setIsAlertOpen] = useState(false)
-
   const name = participant.name || participant.identity
 
   return (
-    <>
     <Button
       isDisabled={isMuted}
       size={'sm'}
       variant={'primaryTextDark'}
       square
-        onPress={() => setIsAlertOpen(true)}
+      onPress={() => openMuteDialog(participant)}
       tooltip={t('muteParticipant', { name })}
     >
       {!isMuted ? <RiMicLine /> : <RiMicOffLine />}
     </Button>
-      <MuteAlertDialog
-        isOpen={isAlertOpen}
-        onSubmit={() =>
-          muteParticipant(participant).then(() => setIsAlertOpen(false))
-        }
-        onClose={() => setIsAlertOpen(false)}
-        name={name}
-      />
-    </>
   )
 }

src/frontend/src/features/participants/components/ParticipantRow.tsx

@@ -19,13 +19,11 @@ import {
 import Source = Track.Source
 import { RiMicFill, RiMicOffFill } from '@remixicon/react'
 import { Button } from '@/primitives'
-import { useState } from 'react'
-import { useMuteParticipant } from '@/features/rooms/api/muteParticipant'
 import { useCanMute } from '@/features/rooms/livekit/hooks/useCanMute'
 import { ParticipantMenuButton } from './menu/ParticipantMenuButton'
 import { PinBadge } from './PinBadge'
 import { UnauthenticatedBadge } from './UnauthenticatedBadge'
-import { MuteAlertDialog } from '@/features/rooms/livekit/components/MuteAlertDialog'
+import { openMuteDialog } from '@/stores/muteDialog'
 import { ParticipantName } from './ParticipantName'
 
 type MicIndicatorProps = {
@@ -34,7 +32,6 @@ type MicIndicatorProps = {
 
 const MicIndicator = ({ participant }: MicIndicatorProps) => {
   const { t } = useTranslation('rooms')
-  const { muteParticipant } = useMuteParticipant()
   const { isMuted } = useTrackMutedIndicator({
     participant: participant,
     source: Source.Microphone,
@@ -42,7 +39,6 @@ const MicIndicator = ({ participant }: MicIndicatorProps) => {
 
   const canMute = useCanMute(participant)
   const isSpeaking = useIsSpeaking(participant)
-  const [isAlertOpen, setIsAlertOpen] = useState(false)
   const name = participant.name || participant.identity
 
   const label = isLocal(participant)
@@ -52,7 +48,6 @@ const MicIndicator = ({ participant }: MicIndicatorProps) => {
       })
 
   return (
-    <>
     <Button
       square
       variant="greyscale"
@@ -62,10 +57,8 @@ const MicIndicator = ({ participant }: MicIndicatorProps) => {
       isDisabled={isMuted || !canMute}
       onPress={async () =>
         !isMuted && isLocal(participant)
-            ? await (participant as LocalParticipant)?.setMicrophoneEnabled(
+          ? await (participant as LocalParticipant)?.setMicrophoneEnabled(false)
-                false
+          : openMuteDialog(participant)
-              )
-            : setIsAlertOpen(true)
       }
       data-attr="participants-mute"
     >
@@ -83,15 +76,6 @@ const MicIndicator = ({ participant }: MicIndicatorProps) => {
         />
       )}
     </Button>
-      <MuteAlertDialog
-        isOpen={isAlertOpen}
-        onSubmit={() =>
-          muteParticipant(participant).then(() => setIsAlertOpen(false))
-        }
-        onClose={() => setIsAlertOpen(false)}
-        name={name}
-      />
-    </>
   )
 }
 

src/frontend/src/features/performance/components/CpuConstrainedObserver.tsx

@@ -1,71 +0,0 @@
-import { useEffect, useRef } from 'react'
-import { useRoomContext } from '@livekit/components-react'
-import {
-  LocalTrackPublication,
-  LocalVideoTrack,
-  ParticipantEvent,
-  Track,
-} from 'livekit-client'
-
-import { captureEvent } from '@/features/analytics/telemetry'
-import { collectHardwareSnapshot } from '@/features/analytics/hardware'
-import { notifyCpuConstrained } from '@/features/notifications/utils'
-import { isFireFox } from '@/utils/livekit'
-import {
-  enablePerformanceMode,
-  performanceModeStore,
-} from '@/stores/performanceMode'
-
-export const CpuConstrainedObserver = () => {
-  const room = useRoomContext()
-  const degradedTracksRef = useRef(new WeakSet<LocalVideoTrack>())
-
-  useEffect(() => {
-    const localParticipant = room.localParticipant
-
-    const handleCpuConstrained = (
-      track: LocalVideoTrack,
-      publication: LocalTrackPublication
-    ) => {
-      const { enabled, userDeclinedAuto } = performanceModeStore
-
-      const shouldDegrade =
-        publication.source === Track.Source.Camera &&
-        !enabled &&
-        !userDeclinedAuto &&
-        !degradedTracksRef.current.has(track)
-
-      void collectHardwareSnapshot().then((hardware) => {
-        captureEvent('cpu-constrained', {
-          firefox: isFireFox(),
-          source: publication.source,
-          degraded: shouldDegrade,
-          trackOptions: publication.options,
-          performance_mode_enabled: enabled,
-          user_declined_auto: userDeclinedAuto,
-          ...hardware,
-        })
-      })
-
-      if (!shouldDegrade) return
-      degradedTracksRef.current.add(track)
-
-      enablePerformanceMode('cpu')
-      notifyCpuConstrained()
-    }
-
-    localParticipant.on(
-      ParticipantEvent.LocalTrackCpuConstrained,
-      handleCpuConstrained
-    )
-
-    return () => {
-      localParticipant.off(
-        ParticipantEvent.LocalTrackCpuConstrained,
-        handleCpuConstrained
-      )
-    }
-  }, [room])
-
-  return null
-}

src/frontend/src/features/performance/components/PerformanceModeController.tsx

@@ -1,108 +0,0 @@
-import { useEffect } from 'react'
-import { useRoomContext } from '@livekit/components-react'
-import {
-  LocalTrackPublication,
-  LocalVideoTrack,
-  ParticipantEvent,
-  Track,
-  TrackEvent,
-} from 'livekit-client'
-import { useSnapshot } from 'valtio'
-import { reportError } from '@/features/analytics/telemetry'
-import {
-  disablePerformanceMode,
-  performanceModeStore,
-} from '@/stores/performanceMode'
-import { degradeVideoTrack, restoreVideoTrack } from '../degradation'
-
-/** Delay to re-apply degradation after restart to avoid racing LiveKit's encoding recompute. */
-const REAPPLY_AFTER_RESTART_MS = 1_000
-
-/** Syncs performance mode store state to outbound camera track encoding settings. */
-export const PerformanceModeController = () => {
-  const room = useRoomContext()
-  const { enabled } = useSnapshot(performanceModeStore)
-
-  // Manage degradation application and track lifecycle events
-  useEffect(() => {
-    const localParticipant = room.localParticipant
-
-    const getCameraTrack = () => {
-      const pub = localParticipant.getTrackPublication(Track.Source.Camera)
-      return pub?.track instanceof LocalVideoTrack ? pub.track : null
-    }
-
-    const track = getCameraTrack()
-
-    // Restore track quality if performance mode is disabled
-    if (!enabled) {
-      if (track) {
-        restoreVideoTrack(track).catch((err) =>
-          reportError('performance_mode_failure', err, { action: 'restore' })
-        )
-      }
-      return
-    }
-
-    const applyDegradation = (t: LocalVideoTrack, action = 'degrade') => {
-      degradeVideoTrack(t).catch((err) =>
-        reportError('performance_mode_failure', err, { action })
-      )
-    }
-
-    // Re-apply degradation after track restarts (e.g. device/resolution changes)
-    const watchTrackRestart = (t: LocalVideoTrack) => {
-      let timeoutId: ReturnType<typeof setTimeout>
-      const onRestarted = () => {
-        clearTimeout(timeoutId)
-        timeoutId = setTimeout(() => {
-          if (performanceModeStore.enabled) applyDegradation(t, 'reapply')
-        }, REAPPLY_AFTER_RESTART_MS)
-      }
-      t.on(TrackEvent.Restarted, onRestarted)
-      return () => {
-        clearTimeout(timeoutId)
-        t.off(TrackEvent.Restarted, onRestarted)
-      }
-    }
-
-    let unwatchRestart: (() => void) | undefined
-
-    if (track) {
-      applyDegradation(track)
-      unwatchRestart = watchTrackRestart(track)
-    }
-
-    // Apply degradation to newly published camera tracks
-    const handlePublished = (pub: LocalTrackPublication) => {
-      if (
-        pub.source === Track.Source.Camera &&
-        pub.track instanceof LocalVideoTrack
-      ) {
-        unwatchRestart?.()
-        applyDegradation(pub.track)
-        unwatchRestart = watchTrackRestart(pub.track)
-      }
-    }
-    localParticipant.on(ParticipantEvent.LocalTrackPublished, handlePublished)
-
-    return () => {
-      localParticipant.off(
-        ParticipantEvent.LocalTrackPublished,
-        handlePublished
-      )
-      unwatchRestart?.()
-    }
-  }, [room, enabled])
-
-  // Reset auto (CPU-triggered) performance mode on unmount/leave room
-  useEffect(() => {
-    return () => {
-      if (performanceModeStore.trigger === 'cpu') {
-        disablePerformanceMode()
-      }
-    }
-  }, [])
-
-  return null
-}

src/frontend/src/features/performance/degradation.ts

@@ -1,126 +0,0 @@
-import { LocalVideoTrack } from 'livekit-client'
-import { isFireFox } from '@/utils/livekit'
-
-/** Target degraded encoding for layer 0 (~360p @ 15fps, ≤300kbps). */
-export const DEGRADED_MAX_HEIGHT = 360
-export const DEGRADED_MAX_FRAMERATE = 15
-export const DEGRADED_MAX_BITRATE = 300_000
-
-/**
- * Firefox ignores `active = false` on RTCRtpSender.
- * We starve higher layers using LiveKit's sentinel workaround values instead.
- */
-const FF_DISABLED_SCALE_DOWN = 4
-const FF_DISABLED_MAX_BITRATE = 10
-const FF_DISABLED_MAX_FRAMERATE = 2
-
-type SavedEncoding = Pick<
-  RTCRtpEncodingParameters,
-  'active' | 'scaleResolutionDownBy' | 'maxBitrate' | 'maxFramerate'
->
-
-/** Pre-degradation encoding snapshots keyed by track to prevent leaks. */
-const savedEncodingsByTrack = new WeakMap<LocalVideoTrack, SavedEncoding[]>()
-
-export const isTrackDegraded = (track: LocalVideoTrack) =>
-  savedEncodingsByTrack.has(track)
-
-/**
- * Revertibly degrades local video quality without unpublishing.
- * Avoids `prioritizePerformance()` because its internal flag disables dynacast permanently.
- *
- * - Layer 0: Capped to 360p / 15fps / 300kbps.
- * - Other layers: Set to `active: false` (or starved on Firefox).
- */
-export const degradeVideoTrack = async (track: LocalVideoTrack) => {
-  const sender = track.sender
-  if (!sender) {
-    throw new Error('sender not found')
-  }
-
-  const params = sender.getParameters()
-  if (!params.encodings || params.encodings.length === 0) {
-    return
-  }
-
-  // Snapshot once so re-applications don't overwrite pristine encodings
-  if (!savedEncodingsByTrack.has(track)) {
-    savedEncodingsByTrack.set(
-      track,
-      params.encodings.map((e) => ({
-        active: e.active,
-        scaleResolutionDownBy: e.scaleResolutionDownBy,
-        maxBitrate: e.maxBitrate,
-        maxFramerate: e.maxFramerate,
-      }))
-    )
-  }
-
-  const captureHeight =
-    track.mediaStreamTrack.getSettings().height ?? DEGRADED_MAX_HEIGHT
-
-  params.encodings = params.encodings.map((encoding, idx) => {
-    if (idx === 0) {
-      return {
-        ...encoding,
-        active: true,
-        scaleResolutionDownBy: Math.max(
-          1,
-          Math.ceil(captureHeight / DEGRADED_MAX_HEIGHT)
-        ),
-        maxFramerate: DEGRADED_MAX_FRAMERATE,
-        maxBitrate: Math.min(
-          encoding.maxBitrate ?? DEGRADED_MAX_BITRATE,
-          DEGRADED_MAX_BITRATE
-        ),
-      }
-    }
-
-    if (isFireFox()) {
-      const starved: RTCRtpEncodingParameters = {
-        ...encoding,
-        // Firefox workaround: active=false prevents LiveKit re-encodes, while starved values limit bitrate
-        active: false,
-        scaleResolutionDownBy: FF_DISABLED_SCALE_DOWN,
-        maxBitrate: FF_DISABLED_MAX_BITRATE,
-        maxFramerate: FF_DISABLED_MAX_FRAMERATE,
-      }
-      // LiveKit legacy property fallback for Firefox
-      ;(starved as Record<string, unknown>).maxFrameRate =
-        FF_DISABLED_MAX_FRAMERATE
-      return starved
-    }
-
-    return { ...encoding, active: false }
-  })
-
-  await sender.setParameters(params)
-}
-
-/** Restores encodings captured prior to degradation. */
-export const restoreVideoTrack = async (track: LocalVideoTrack) => {
-  const saved = savedEncodingsByTrack.get(track)
-  savedEncodingsByTrack.delete(track)
-
-  const sender = track.sender
-  if (!saved || !sender) {
-    return
-  }
-
-  const params = sender.getParameters()
-  if (!params.encodings || params.encodings.length !== saved.length) {
-    return
-  }
-
-  params.encodings = params.encodings.map((encoding, idx) => {
-    const restored: RTCRtpEncodingParameters = {
-      ...encoding,
-      ...saved[idx],
-    }
-    // Clean up Firefox legacy property if set during degradation
-    ;(restored as Record<string, unknown>).maxFrameRate = undefined
-    return restored
-  })
-
-  await sender.setParameters(params)
-}

src/frontend/src/features/recording/hooks/useMutateRecording.ts

@@ -1,17 +1,20 @@
 import { useStartRecording, useStopRecording } from '@/features/recording'
 import { recordingStore } from '@/stores/recording'
+import { captureEvent } from '@/features/analytics/telemetry'
 
 export const useMutateRecording = () => {
   const { mutateAsync: startRecording, isPending: isPendingToStart } =
     useStartRecording({
       onError: () => {
         recordingStore.isErrorDialogOpen = 'start'
+        captureEvent('error-starting-recording')
       },
     })
   const { mutateAsync: stopRecording, isPending: isPendingToStop } =
     useStopRecording({
       onError: () => {
         recordingStore.isErrorDialogOpen = 'stop'
+        captureEvent('error-stopping-recording')
       },
     })
 

src/frontend/src/features/rooms/components/Conference.tsx

@@ -6,6 +6,8 @@ import {
   usePersistentUserChoices,
 } from '@livekit/components-react'
 import {
+  ConnectionError,
+  ConnectionErrorReason,
   DisconnectReason,
   MediaDeviceFailure,
   Room,
@@ -25,7 +27,11 @@ import { VideoConference } from '../livekit/prefabs/VideoConference'
 import { css } from '@/styled-system/css'
 import { BackgroundProcessorFactory } from '../livekit/components/blur'
 import { LocalUserChoices } from '@/stores/userChoices'
-import { captureMediaEvent, reportError } from '@/features/analytics/telemetry'
+import {
+  captureEvent,
+  captureMediaEvent,
+  reportError,
+} from '@/features/analytics/telemetry'
 import { useConfig } from '@/api/useConfig'
 import { isFireFox } from '@/utils/livekit'
 import { useIsMobile } from '@/utils/useIsMobile'
@@ -225,9 +231,20 @@ export const Conference = ({
             backgroundColor: 'primaryDark.50 !important',
           })}
           onError={(e) => {
+            const failure = MediaDeviceFailure.getFailure(e)
+            if (failure && failure !== MediaDeviceFailure.Other) return
+
+            // connect() was aborted by a disconnect() before the join completed
+            if (
+              e instanceof ConnectionError &&
+              e.reason === ConnectionErrorReason.Cancelled
+            ) {
+              void captureEvent('connection-cancelled')
+              return
+            }
+
             reportError('livekit_room_error', e, {
               path: 'connect_publish',
-              failure: MediaDeviceFailure.getFailure(e) ?? 'not-a-device-error',
             })
           }}
           onConnected={async () => {

src/frontend/src/features/rooms/components/Join.tsx

@@ -28,6 +28,7 @@ import {
   userChoicesStore,
 } from '@/stores/userChoices'
 import { useCannotUseDevice } from '../livekit/hooks/useCannotUseDevice'
+import { useDeviceInUse } from '../livekit/hooks/useDeviceInUse'
 import { useDeviceMissing } from '../livekit/hooks/useDeviceMissing'
 import { useJoinTracks } from '../livekit/hooks/useJoinTracks'
 import { SilentMicDetector } from './SilentMicDetector'
@@ -218,12 +219,14 @@ const switchTrackDevice =
 function getPreviewMessages({
   cameraFound,
   cameraDenied,
+  cameraInUse,
   micDenied,
   videoEnabled,
   videoStarted,
 }: {
   cameraFound: boolean
   cameraDenied: boolean
+  cameraInUse: boolean
   micDenied: boolean
   videoEnabled: boolean
   videoStarted: boolean
@@ -235,6 +238,9 @@ function getPreviewMessages({
     const key = micDenied ? 'cameraAndMicNotGranted' : 'cameraNotGranted'
     return { hint: key, permissionsButtonLabel: key }
   }
+  if (cameraInUse) {
+    return { hint: 'cameraInUse', permissionsButtonLabel: null }
+  }
   if (!videoEnabled) {
     return { hint: 'cameraDisabled', permissionsButtonLabel: null }
   }
@@ -328,18 +334,20 @@ const VideoPreview = ({
   const cameraDenied = useCannotUseDevice('videoinput')
   const micDenied = useCannotUseDevice('audioinput')
   const cameraMissing = useDeviceMissing('videoinput')
+  const cameraInUse = useDeviceInUse('videoinput')
 
   const { videoEl, videoStarted } = useAttachedVideo(videoTrack, videoEnabled)
 
   const { hint, permissionsButtonLabel } = getPreviewMessages({
     cameraFound: !cameraMissing,
     cameraDenied,
+    cameraInUse,
     micDenied,
     videoEnabled,
     videoStarted,
   })
 
-  const isError = cameraMissing || cameraDenied
+  const isError = cameraMissing || cameraDenied || cameraInUse
 
   return (
     <div className={styles.previewFrame}>

src/frontend/src/features/rooms/hooks/useWatchDeviceReleased.ts

@@ -0,0 +1,30 @@
+import { useEffect } from 'react'
+import { useSnapshot } from 'valtio'
+import { deviceAvailabilityStore } from '@/stores/deviceAvailability'
+import { probeDeviceReleased } from '../livekit/utils/mediaPermissions'
+import type { PermissionKind } from '@/stores/permissions'
+
+const RETRY_INTERVAL_MS = 30_000
+
+/**
+ * There is no browser event for "another app released the device", so
+ * while a device is flagged in use, re-probe it periodically. Only clears
+ * the flag (the toggle becomes usable again); it never re-enables the
+ * device on the user's behalf.
+ */
+export function useWatchDeviceReleased() {
+  const { cameraInUse, microphoneInUse } = useSnapshot(deviceAvailabilityStore)
+  useWatchKind('camera', cameraInUse)
+  useWatchKind('microphone', microphoneInUse)
+}
+
+function useWatchKind(kind: PermissionKind, inUse: boolean) {
+  useEffect(() => {
+    if (!inUse) return
+    const id = setInterval(
+      () => void probeDeviceReleased(kind),
+      RETRY_INTERVAL_MS
+    )
+    return () => clearInterval(id)
+  }, [kind, inUse])
+}

src/frontend/src/features/rooms/livekit/components/MuteAlertDialogProvider.tsx

@@ -0,0 +1,28 @@
+import { useRef } from 'react'
+import { useSnapshot } from 'valtio'
+import { useMuteParticipant } from '@/features/rooms/api/muteParticipant'
+import { closeMuteDialog, muteDialogStore } from '@/stores/muteDialog'
+import { MuteAlertDialog } from './MuteAlertDialog'
+
+export const MuteAlertDialogProvider = () => {
+  const { participant } = useSnapshot(muteDialogStore)
+  const { muteParticipant } = useMuteParticipant()
+
+  const lastNameRef = useRef('')
+  if (participant) {
+    lastNameRef.current = participant.name || participant.identity
+  }
+
+  return (
+    <MuteAlertDialog
+      isOpen={!!participant}
+      name={lastNameRef.current}
+      onClose={closeMuteDialog}
+      onSubmit={() => {
+        const target = muteDialogStore.participant
+        if (!target) return
+        muteParticipant(target).then(closeMuteDialog)
+      }}
+    />
+  )
+}

src/frontend/src/features/rooms/livekit/components/ScreenShareErrorModal.tsx

@@ -1,6 +1,13 @@
 import { A, Button, Dialog, P } from '@/primitives'
 import { useTranslation } from 'react-i18next'
 import { css } from '@/styled-system/css'
+import { getOS, type OS } from '@/utils/os'
+
+const SCREEN_CAPTURE_SETTINGS_LINKS: Partial<Record<OS, string>> = {
+  macos:
+    'x-apple.systempreferences:com.apple.preference.security?Privacy_ScreenCapture',
+  windows: 'ms-settings:privacy-graphicscaptureprogrammatic',
+}
 
 // todo - refactor it into a generic system
 export const ScreenShareErrorModal = ({
@@ -11,7 +18,8 @@ export const ScreenShareErrorModal = ({
   onClose: () => void
 }) => {
   const { t } = useTranslation('rooms', { keyPrefix: 'error.screenShare' })
-  const isMac = navigator.userAgent.toLowerCase().indexOf('mac') !== -1
+  const os = getOS()
+  const settingsHref = SCREEN_CAPTURE_SETTINGS_LINKS[os]
 
   return (
     <Dialog
@@ -26,15 +34,16 @@ export const ScreenShareErrorModal = ({
           <>
             <P>
               {t('message')}{' '}
-              {isMac && (
+              {settingsHref && (
                 <>
-                  {t('macInstructions')}{' '}
+                  {t('settingsInstructions')}{' '}
                   <A
-                    href="x-apple.systempreferences:com.apple.preference.security?Privacy_ScreenCapture"
+                    href={settingsHref}
+                    target="_blank"
                     color="primary"
-                    aria-label={t('macSystemPreferences') + '-' + t('newTab')}
+                    aria-label={t(`settingsLabel.${os}`) + '-' + t('newTab')}
                   >
-                    {t('macSystemPreferences')}
+                    {t(`settingsLabel.${os}`)}
                   </A>
                   .{' '}
                 </>

src/frontend/src/features/rooms/livekit/components/VideoResolutionSubscription.tsx

@@ -9,18 +9,15 @@ import {
 } from 'livekit-client'
 import { useSnapshot } from 'valtio'
 import { userChoicesStore } from '@/stores/userChoices'
-import { performanceModeStore } from '@/stores/performanceMode'
 
+/**
+ * Sets initial video quality for new participants as they join.
+ * LiveKit doesn't allow handling video quality preferences at the room level.
+ */
 export const VideoResolutionSubscription = () => {
   const { videoSubscribeQuality } = useSnapshot(userChoicesStore)
-  const { enabled: isPerformanceModeEnabled } =
-    useSnapshot(performanceModeStore)
   const room = useRoomContext()
 
-  const effectiveQuality = isPerformanceModeEnabled
-    ? VideoQuality.LOW
-    : (videoSubscribeQuality ?? VideoQuality.HIGH)
-
   useEffect(() => {
     if (!room) return
 
@@ -28,12 +25,18 @@ export const VideoResolutionSubscription = () => {
       publication: RemoteTrackPublication,
       _participant: RemoteParticipant
     ) => {
-      if (effectiveQuality === VideoQuality.HIGH) return
+      // By default, the maximum quality is set to high
+      if (
+        videoSubscribeQuality === undefined ||
+        videoSubscribeQuality === VideoQuality.HIGH
+      )
+        return
+
       if (
         publication.kind === Track.Kind.Video &&
         publication.source !== Track.Source.ScreenShare
       ) {
-        publication.setVideoQuality(effectiveQuality)
+        publication.setVideoQuality(videoSubscribeQuality)
       }
     }
 
@@ -41,20 +44,7 @@ export const VideoResolutionSubscription = () => {
     return () => {
       room.off(RoomEvent.TrackPublished, handleTrackPublished)
     }
-  }, [room, effectiveQuality])
+  }, [room, videoSubscribeQuality])
-
-  useEffect(() => {
-    if (!room) return
-
-    room.remoteParticipants.forEach((participant) => {
-      participant.videoTrackPublications.forEach((publication) => {
-        if (publication.source === Track.Source.ScreenShare) return
-        if (publication.videoQuality !== effectiveQuality) {
-          publication.setVideoQuality(effectiveQuality)
-        }
-      })
-    })
-  }, [room, effectiveQuality])
 
   return null
 }

src/frontend/src/features/rooms/livekit/components/blur/BackgroundCustomProcessor.ts

@@ -44,7 +44,7 @@ export class BackgroundCustomProcessor implements BackgroundProcessorInterface {
   videoElement?: HTMLVideoElement
   videoElementLoaded?: boolean
 
-  // Canvas containg the video processing result, of which we extract as stream.
+  // Canvas containing the video processing result, of which we extract as stream.
   outputCanvas?: HTMLCanvasElement
   outputCanvasCtx?: CanvasRenderingContext2D
 
@@ -55,7 +55,7 @@ export class BackgroundCustomProcessor implements BackgroundProcessorInterface {
   segmentationMaskCanvas?: HTMLCanvasElement
   segmentationMaskCanvasCtx?: CanvasRenderingContext2D
 
-  // Mask containg the inference result.
+  // Mask containing the inference result.
   segmentationMask?: ImageData
 
   // The resized image of the video source.
@@ -105,9 +105,7 @@ export class BackgroundCustomProcessor implements BackgroundProcessorInterface {
 
   _initVirtualBackgroundImage() {
     if (this.options.type !== 'virtual') {
-      throw new Error(
+      return
-        'Virtual background is only supported for virtual background'
-      )
     }
 
     const needsUpdate =

src/frontend/src/features/rooms/livekit/components/controls/Device/ToggleDevice.tsx

@@ -20,8 +20,9 @@ import { openPermissionsDialog } from '@/stores/permissions'
 import { openSilentMicDialog, silentMicStore } from '@/stores/silentMic'
 import { useSnapshot } from 'valtio'
 import { useCannotUseDevice } from '../../../hooks/useCannotUseDevice'
+import { useDeviceInUse } from '../../../hooks/useDeviceInUse'
 import { useDeviceMissing } from '../../../hooks/useDeviceMissing'
-import { requestDevicePermission } from '../../../hooks/useJoinTracks'
+import { requestDevicePermission } from '../../../utils/mediaPermissions'
 import { useDeviceIcons } from '../../../hooks/useDeviceIcons'
 import { useDeviceShortcut } from '../../../hooks/useDeviceShortcut'
 import type {
@@ -97,38 +98,42 @@ export const ToggleDevice = <T extends ToggleSource>({
   const deviceIcons = useDeviceIcons(kind)
   const cannotUseDevice = useCannotUseDevice(kind)
   const deviceMissing = useDeviceMissing(kind)
+  const deviceInUse = useDeviceInUse(kind)
+  const explainDeviceInUse = deviceInUse && context === 'room'
   const { status: silentMicStatus } = useSnapshot(silentMicStore)
   const silentMicWarning =
     kind === 'audioinput' &&
     silentMicStatus === 'silent' &&
     !cannotUseDevice &&
-    !deviceMissing
+    !deviceMissing &&
+    !deviceInUse
   const deviceShortcut = useDeviceShortcut(kind)
   const announce = useScreenReaderAnnounce()
 
   const isRequestingPermission = useRef(false)
-  const [showDeviceNotFound, setShowDeviceNotFound] = useState(false)
+  const [alertError, setAlertError] = useState<MediaDeviceFailure | null>(null)
+
+  const mediaPath = context === 'join' ? 'join_preview' : 'room'
 
   const onPress = async () => {
     if (!enabled && deviceMissing) {
-      setShowDeviceNotFound(true)
+      setAlertError(MediaDeviceFailure.NotFound)
       return
     }
-    if (!cannotUseDevice) {
+    if (!cannotUseDevice && !deviceInUse) {
       toggle()
       return
     }
     if (isRequestingPermission.current) return
     isRequestingPermission.current = true
     try {
-      const granted = await requestDevicePermission(
+      const acquired = await requestDevicePermission(kind, mediaPath)
-        kind,
+      if (acquired) {
-        context === 'join' ? 'join_preview' : 'room'
-      )
-      if (granted) {
         toggle()
-      } else {
+      } else if (cannotUseDevice) {
         openPermissionsDialog(kind)
+      } else if (explainDeviceInUse) {
+        setAlertError(MediaDeviceFailure.DeviceInUse)
       }
     } finally {
       isRequestingPermission.current = false
@@ -179,13 +184,33 @@ export const ToggleDevice = <T extends ToggleSource>({
     return <ActiveSpeakerWrapper />
   }
 
+  const getToggleTooltip = () => {
+    if (deviceMissing) return t(`deviceNotFound.${kind}`)
+    if (explainDeviceInUse) return t(`deviceInUse.${kind}`)
+    if (cannotUseDevice) return t('tooltip', { keyPrefix: 'permissionsButton' })
+    return toggleLabel
+  }
+  const toggleTooltip = getToggleTooltip()
+
   return (
     <div style={{ position: 'relative' }}>
       {(cannotUseDevice || deviceMissing) && (
         <PermissionNeededButton
           tooltip={deviceMissing ? t(`deviceNotFound.${kind}`) : undefined}
           onPress={
-            deviceMissing ? () => setShowDeviceNotFound(true) : undefined
+            deviceMissing
+              ? () => setAlertError(MediaDeviceFailure.NotFound)
+              : undefined
+          }
+        />
+      )}
+      {deviceInUse && (
+        <PermissionNeededButton
+          tooltip={explainDeviceInUse ? t(`deviceInUse.${kind}`) : undefined}
+          onPress={
+            explainDeviceInUse
+              ? () => setAlertError(MediaDeviceFailure.DeviceInUse)
+              : undefined
           }
         />
       )}
@@ -204,22 +229,16 @@ export const ToggleDevice = <T extends ToggleSource>({
         shySelected
         onPress={onPress}
         aria-label={toggleLabel}
-        tooltip={
+        tooltip={toggleTooltip}
-          deviceMissing
-            ? t(`deviceNotFound.${kind}`)
-            : cannotUseDevice
-              ? t('tooltip', { keyPrefix: 'permissionsButton' })
-              : toggleLabel
-        }
         {...computedToggleButtonProps}
         {...overrideToggleButtonProps}
       >
         <Icon />
       </ToggleButton>
       <MediaDeviceErrorAlert
-        error={showDeviceNotFound ? MediaDeviceFailure.NotFound : null}
+        error={alertError}
         kind={kind}
-        onClose={() => setShowDeviceNotFound(false)}
+        onClose={() => setAlertError(null)}
       />
     </div>
   )

src/frontend/src/features/rooms/livekit/components/effects/EffectsConfiguration.tsx

@@ -37,8 +37,8 @@ import { reportError } from '@/features/analytics/telemetry'
 
 enum BlurRadius {
   NONE = 0,
-  LIGHT = 5,
+  LIGHT = 10,
-  NORMAL = 10,
+  NORMAL = 20,
 }
 
 const isSupported = BackgroundProcessorFactory.isSupported()

src/frontend/src/features/rooms/livekit/hooks/useDeviceInUse.ts

@@ -0,0 +1,21 @@
+import { useSnapshot } from 'valtio'
+import { deviceAvailabilityStore } from '@/stores/deviceAvailability'
+import { useCannotUseDevice } from './useCannotUseDevice'
+import { useDeviceMissing } from './useDeviceMissing'
+
+export const useDeviceInUse = (kind: MediaDeviceKind): boolean => {
+  const { cameraInUse, microphoneInUse } = useSnapshot(deviceAvailabilityStore)
+  const cannotUseDevice = useCannotUseDevice(kind)
+  const deviceMissing = useDeviceMissing(kind)
+
+  if (cannotUseDevice || deviceMissing) return false
+
+  switch (kind) {
+    case 'videoinput':
+      return cameraInUse
+    case 'audioinput':
+      return microphoneInUse
+    default:
+      return false
+  }
+}

src/frontend/src/features/rooms/livekit/hooks/useJoinTracks.ts

@@ -10,16 +10,13 @@ import {
 } from 'livekit-client'
 import { BackgroundProcessorFactory } from '../components/blur'
 import {
-  classifyPermissionError,
-  isLikelySystemNotFound,
   isSystemPermissionError,
-  noteGumSuccess,
-  notePermissionDeniedFromGum,
-  noteSystemPermissionDenied,
   type PermissionKind,
 } from '@/stores/permissions'
-import { getOS } from '@/utils/os'
+import {
-import { captureMediaEvent, reportError } from '@/features/analytics/telemetry'
+  noteDeviceReady,
+  onMediaPermissionError,
+} from '../utils/mediaPermissions'
 import {
   saveAudioInputDeviceId,
   saveAudioInputEnabled,
@@ -39,64 +36,6 @@ const VOICE_AUDIO_CONSTRAINTS = {
   sampleSize: 16,
 } as const
 
-const PERMISSION_KIND: Record<'audioinput' | 'videoinput', PermissionKind> = {
-  audioinput: 'microphone',
-  videoinput: 'camera',
-}
-
-type MediaPath = 'join_preview' | 'room'
-
-const onMediaPermissionError = (
-  e: Error,
-  kind?: PermissionKind,
-  path: MediaPath = 'join_preview'
-) => {
-  if (
-    MediaDeviceFailure.getFailure(e) === MediaDeviceFailure.PermissionDenied
-  ) {
-    void classifyPermissionError(e, kind).then((scope) => {
-      if (scope === 'system') {
-        noteSystemPermissionDenied(kind)
-      } else {
-        notePermissionDeniedFromGum(kind)
-      }
-      captureMediaEvent('permissions-denied', {
-        path,
-        kind,
-        denied_scope: scope,
-        os: getOS(),
-      })
-    })
-    return
-  }
-
-  if (MediaDeviceFailure.getFailure(e) === MediaDeviceFailure.NotFound) {
-    // Firefox reports OS-level blocks as NotFoundError (macOS privacy
-    // settings, missing Android app permissions).
-    void isLikelySystemNotFound(e, kind).then((system) => {
-      if (system) {
-        noteSystemPermissionDenied(kind)
-        captureMediaEvent('permissions-denied', {
-          path,
-          kind,
-          denied_scope: 'system',
-          os: getOS(),
-        })
-        return
-      }
-      captureMediaEvent('device-not-found', { path, kind })
-    })
-    return
-  }
-
-  // "Other" and "Device in use" are still reported as errors, as they are not handled on the join screen.
-  reportError(
-    path === 'room' ? 'room_media_failure' : 'join_preview_failure',
-    e,
-    { path, kind }
-  )
-}
-
 // Module-level: effect dependencies, must be referentially stable.
 const disableAudio = () => saveAudioInputEnabled(false)
 const disableVideo = () => saveVideoInputEnabled(false)
@@ -104,24 +43,6 @@ const disableVideo = () => saveVideoInputEnabled(false)
 const stopAll = (stream: MediaStream) =>
   stream.getTracks().forEach((track) => track.stop())
 
-export const requestDevicePermission = async (
-  kind: 'audioinput' | 'videoinput',
-  path: MediaPath = 'join_preview'
-): Promise<boolean> => {
-  try {
-    const track =
-      kind === 'audioinput'
-        ? await createLocalAudioTrack()
-        : await createLocalVideoTrack()
-    track.stop()
-    noteGumSuccess(PERMISSION_KIND[kind])
-    return true
-  } catch (error) {
-    onMediaPermissionError(error as Error, PERMISSION_KIND[kind], path)
-    return false
-  }
-}
-
 type WarmupState = {
   audioReady: boolean
   videoReady: boolean
@@ -158,7 +79,7 @@ function useWarmupPermissions(): WarmupState {
             video: true,
           })
         )
-        noteGumSuccess()
+        noteDeviceReady()
         bothReady()
       } catch (error) {
         if (
@@ -180,7 +101,7 @@ function useWarmupPermissions(): WarmupState {
           .getUserMedia({ audio: true })
           .then((stream) => {
             stopAll(stream)
-            noteGumSuccess('microphone')
+            noteDeviceReady('microphone')
           })
           .catch((e) => onMediaPermissionError(e as Error, 'microphone'))
           .finally(() =>
@@ -190,7 +111,7 @@ function useWarmupPermissions(): WarmupState {
           .getUserMedia({ video: true })
           .then((stream) => {
             stopAll(stream)
-            noteGumSuccess('camera')
+            noteDeviceReady('camera')
           })
           .catch((e) => onMediaPermissionError(e as Error, 'camera'))
           .finally(() =>
@@ -227,7 +148,7 @@ function useLocalTrack<T extends LocalAudioTrack | LocalVideoTrack>({
     let cancelled = false
     create()
       .then((newTrack) => {
-        noteGumSuccess(permissionKind)
+        noteDeviceReady(permissionKind)
         if (cancelled) {
           newTrack.stop()
           return

src/frontend/src/features/rooms/livekit/hooks/useWatchMediaDeviceErrors.ts

@@ -1,6 +1,11 @@
 import { useCallback, useEffect, useState } from 'react'
 import { useRoomContext } from '@livekit/components-react'
-import { MediaDeviceFailure, RoomEvent } from 'livekit-client'
+import {
+  type LocalTrackPublication,
+  MediaDeviceFailure,
+  RoomEvent,
+  Track,
+} from 'livekit-client'
 import {
   PERMISSION_BY_DEVICE_KIND,
   type PermissionDeniedScope,
@@ -10,7 +15,11 @@ import {
   notePermissionDeniedFromGum,
   noteSystemPermissionDenied,
 } from '@/stores/permissions'
-import { syncDeviceAvailability } from '@/stores/deviceAvailability'
+import {
+  clearDeviceInUse,
+  noteDeviceInUse,
+  syncDeviceAvailability,
+} from '@/stores/deviceAvailability'
 import { captureMediaEvent } from '@/features/analytics/telemetry'
 import { getOS } from '@/utils/os'
 
@@ -21,6 +30,11 @@ type MediaDeviceAlert = {
 
 const NO_ALERT: MediaDeviceAlert = { error: null, kind: null }
 
+const PERMISSION_BY_SOURCE: Partial<Record<Track.Source, PermissionKind>> = {
+  [Track.Source.Camera]: 'camera',
+  [Track.Source.Microphone]: 'microphone',
+}
+
 const capturePermissionsDenied = (
   scope: PermissionDeniedScope,
   kind?: PermissionKind
@@ -50,18 +64,20 @@ export const useWatchMediaDeviceErrors = (): MediaDeviceAlert & {
   useEffect(() => {
     const onDeviceError = (error: Error, kind?: MediaDeviceKind) => {
       const failure = MediaDeviceFailure.getFailure(error)
-      if (!failure || !kind) return
+      if (!failure) return
-
+      if (failure != MediaDeviceFailure.Other) {
         void captureMediaEvent('media-device-error', {
           log_code: 'media_devices_error_event',
           path: 'connect_publish',
           failure,
-        kind,
+          kind: kind ?? 'unknown',
         })
-
+      }
+      if (!kind) return
       const permissionKind = PERMISSION_BY_DEVICE_KIND[kind]
       switch (failure) {
         case MediaDeviceFailure.DeviceInUse:
+          noteDeviceInUse(permissionKind)
           setAlert({ error: failure, kind })
           break
         case MediaDeviceFailure.NotFound:
@@ -91,9 +107,16 @@ export const useWatchMediaDeviceErrors = (): MediaDeviceAlert & {
           break
       }
     }
+    const onTrackPublished = (publication: LocalTrackPublication) => {
+      const permissionKind = PERMISSION_BY_SOURCE[publication.source]
+      if (permissionKind) clearDeviceInUse(permissionKind)
+    }
     room.on(RoomEvent.MediaDevicesError, onDeviceError)
+    room.on(RoomEvent.LocalTrackPublished, onTrackPublished)
     return () => {
       room.off(RoomEvent.MediaDevicesError, onDeviceError)
+      room.off(RoomEvent.LocalTrackPublished, onTrackPublished)
+      clearDeviceInUse()
     }
   }, [room])
 

src/frontend/src/features/rooms/livekit/prefabs/ControlBar/DesktopControlBar.tsx

@@ -9,7 +9,7 @@ import { SubtitlesToggle } from '../../components/controls/SubtitlesToggle'
 import { OptionsButton } from '../../components/controls/Options/OptionsButton'
 import { StartMediaButton } from '../../components/controls/StartMediaButton'
 import { MoreOptions } from './MoreOptions'
-import { useRef } from 'react'
+import { RefObject, useMemo, useState } from 'react'
 import { useRegisterKeyboardShortcut } from '@/features/shortcuts/useRegisterKeyboardShortcut'
 import { useFullScreen } from '../../hooks/useFullScreen'
 import { VideoDeviceControl } from '../../components/controls/Device/VideoDeviceControl'
@@ -21,7 +21,14 @@ export function DesktopControlBar({
   onDeviceError,
 }: Readonly<ControlBarAuxProps>) {
   const browserSupportsScreenSharing = supportsScreenSharing()
-  const desktopControlBarEl = useRef<HTMLDivElement>(null)
+
+  const [controlBarElement, setControlBarElement] =
+    useState<HTMLDivElement | null>(null)
+
+  const desktopControlBarEl = useMemo<RefObject<HTMLDivElement>>(
+    () => ({ current: controlBarElement }),
+    [controlBarElement]
+  )
 
   const { toggleFullScreen, isFullscreenAvailable } = useFullScreen({})
 
@@ -45,7 +52,7 @@ export function DesktopControlBar({
 
   return (
     <div
-      ref={desktopControlBarEl}
+      ref={setControlBarElement}
       className={css({
         width: '100vw',
         display: 'flex',

src/frontend/src/features/rooms/livekit/prefabs/VideoConference.tsx

@@ -1,5 +1,5 @@
 import { isWeb } from '@livekit/components-core'
-import { Track } from 'livekit-client'
+import { MediaDeviceFailure, Track } from 'livekit-client'
 import React, { useState } from 'react'
 import {
   ConnectionStateToast,
@@ -11,12 +11,15 @@ import { SidePanel } from '../components/SidePanel'
 import { RecordingProvider } from '@/features/recording'
 import { ScreenShareErrorModal } from '../components/ScreenShareErrorModal'
 import { ConnectionObserver } from '../components/ConnectionObserver'
-import { reportError } from '@/features/analytics/telemetry'
+import { captureMediaEvent, reportError } from '@/features/analytics/telemetry'
+import { getOS } from '@/utils/os'
+import { isFireFox } from '@/utils/livekit'
 import { MediaStateObserver } from '../components/MediaStateObserver'
 import { RoomMetadataSynchronizer } from '../components/RoomMetadataSynchronizer'
 import { useNoiseReduction } from '../hooks/useNoiseReduction'
 import { VideoResolutionSubscription } from '../components/VideoResolutionSubscription'
 import { SettingsDialogProvider } from '@/features/settings/components/SettingsDialogProvider'
+import { MuteAlertDialogProvider } from '@/features/rooms/livekit/components/MuteAlertDialogProvider'
 import { IsIdleDisconnectModal } from '../components/IsIdleDisconnectModal'
 import { ReactionPortals } from '@/features/reactions/components/ReactionPortals'
 import { RoomContentArea } from '@/features/layout/components/RoomContentArea'
@@ -27,8 +30,6 @@ import { PinAnnouncer } from '@/features/layout/components/PinAnnouncer'
 import { ChatProvider } from '@/features/chat/components/ChatProvider'
 import { SyncDevicePreferences } from '@/features/rooms/livekit/components/SyncDevicePreferences'
 import { RoomSilentMicDetector } from '@/features/rooms/components/SilentMicDetector'
-import { CpuConstrainedObserver } from '@/features/performance/components/CpuConstrainedObserver'
-import { PerformanceModeController } from '@/features/performance/components/PerformanceModeController'
 
 /**
  * @public
@@ -38,6 +39,20 @@ export interface VideoConferenceProps extends React.HTMLAttributes<HTMLDivElemen
   SettingsComponent?: React.ComponentType
 }
 
+const getScreenSharePermissionDeniedScope = (
+  error: Error
+): 'system' | 'user' | 'browser' | null => {
+  if (error.name === 'NotAllowedError') {
+    if (/by system/i.test(error.message)) return 'system'
+    if (/by user/i.test(error.message)) return 'user'
+    return 'browser'
+  }
+  if (error.name === 'NotFoundError' && isFireFox() && getOS() === 'macos') {
+    return 'system'
+  }
+  return null
+}
+
 /**
  * The `VideoConference` ready-made component is your drop-in solution for a classic video conferencing application.
  * It provides functionality such as focusing on one participant, grid view with pagination to handle large numbers
@@ -63,6 +78,39 @@ export function VideoConference({ ...props }: VideoConferenceProps) {
 
   const [isShareErrorVisible, setIsShareErrorVisible] = useState(false)
 
+  const handleDeviceError = ({
+    source,
+    error,
+  }: {
+    source: Track.Source
+    error: Error
+  }) => {
+    if (source === Track.Source.ScreenShare) {
+      const scope = getScreenSharePermissionDeniedScope(error)
+      if (scope) {
+        if (scope === 'system') setIsShareErrorVisible(true)
+        void captureMediaEvent('screen-share-permission-denied', {
+          at: 'ControlBar.onDeviceError',
+          source,
+          error_name: error.name,
+          error_message: error.message,
+          denied_scope: scope,
+          os: getOS(),
+        })
+        return
+      }
+    }
+
+    if (MediaDeviceFailure.getFailure(error) != MediaDeviceFailure.Other) {
+      return
+    }
+
+    reportError('device_switch_failure', error, {
+      at: 'ControlBar.onDeviceError',
+      source,
+    })
+  }
+
   return (
     <>
       <RoomMetadataSynchronizer />
@@ -72,8 +120,6 @@ export function VideoConference({ ...props }: VideoConferenceProps) {
       <MediaStateObserver />
       <ChatProvider />
       <VideoResolutionSubscription />
-      <PerformanceModeController />
-      <CpuConstrainedObserver />
       <div
         className="lk-video-conference"
         {...props}
@@ -96,21 +142,7 @@ export function VideoConference({ ...props }: VideoConferenceProps) {
                 <StageLayout />
               )}
             </RoomContentArea>
-            <ControlBar
+            <ControlBar onDeviceError={handleDeviceError} />
-              onDeviceError={(e) => {
-                reportError('device_switch_failure', e.error, {
-                  at: 'ControlBar.onDeviceError',
-                  source: e.source,
-                })
-                if (
-                  e.source == Track.Source.ScreenShare &&
-                  e.error.toString() ==
-                    'NotAllowedError: Permission denied by system'
-                ) {
-                  setIsShareErrorVisible(true)
-                }
-              }}
-            />
             <SidePanel />
           </>
         )}
@@ -118,6 +150,7 @@ export function VideoConference({ ...props }: VideoConferenceProps) {
         <ConnectionStateToast />
         <RecordingProvider />
         <SettingsDialogProvider />
+        <MuteAlertDialogProvider />
         <ReactionPortals />
       </div>
     </>

src/frontend/src/features/rooms/livekit/utils/mediaPermissions.ts

@@ -0,0 +1,135 @@
+import {
+  createLocalAudioTrack,
+  createLocalVideoTrack,
+  MediaDeviceFailure,
+} from 'livekit-client'
+import {
+  classifyPermissionError,
+  isLikelySystemNotFound,
+  noteGumSuccess,
+  notePermissionDeniedFromGum,
+  noteSystemPermissionDenied,
+  type PermissionKind,
+} from '@/stores/permissions'
+import { clearDeviceInUse, noteDeviceInUse } from '@/stores/deviceAvailability'
+import { captureMediaEvent, reportError } from '@/features/analytics/telemetry'
+import { getOS } from '@/utils/os'
+
+/**
+ * Shared handling of getUserMedia() outcomes, used by both:
+ * - the join preview (`useJoinTracks`: warmup + local track acquisition)
+ * - the in-room device toggle (`ToggleDevice`, when permission is missing)
+ */
+export type MediaPath = 'join_preview' | 'room'
+
+export const PERMISSION_KIND: Record<
+  'audioinput' | 'videoinput',
+  PermissionKind
+> = {
+  audioinput: 'microphone',
+  videoinput: 'camera',
+}
+
+export const noteDeviceReady = (kind?: PermissionKind) => {
+  noteGumSuccess(kind)
+  clearDeviceInUse(kind)
+}
+
+export const onMediaPermissionError = (
+  e: Error,
+  kind?: PermissionKind,
+  path: MediaPath = 'join_preview'
+) => {
+  const failure = MediaDeviceFailure.getFailure(e)
+
+  if (failure === MediaDeviceFailure.PermissionDenied) {
+    void classifyPermissionError(e, kind).then((scope) => {
+      if (scope === 'system') {
+        noteSystemPermissionDenied(kind)
+      } else {
+        notePermissionDeniedFromGum(kind)
+      }
+      captureMediaEvent('permissions-denied', {
+        path,
+        kind,
+        denied_scope: scope,
+        os: getOS(),
+      })
+    })
+    return
+  }
+
+  if (failure === MediaDeviceFailure.NotFound) {
+    // Firefox reports OS-level blocks as NotFoundError (macOS privacy
+    // settings, missing Android app permissions).
+    void isLikelySystemNotFound(e, kind).then((system) => {
+      if (system) {
+        noteSystemPermissionDenied(kind)
+        captureMediaEvent('permissions-denied', {
+          path,
+          kind,
+          denied_scope: 'system',
+          os: getOS(),
+        })
+        return
+      }
+      captureMediaEvent('device-not-found', { path, kind })
+    })
+    return
+  }
+
+  if (failure === MediaDeviceFailure.DeviceInUse) {
+    noteDeviceInUse(kind)
+    void captureMediaEvent('device-in-use', { path, kind, os: getOS() })
+    return
+  }
+
+  // "Other" is still reported as an error.
+  reportError(
+    path === 'room' ? 'room_media_failure' : 'join_preview_failure',
+    e,
+    { path, kind }
+  )
+}
+
+/**
+ * Silent availability check for a device that was reported "in use":
+ * acquires and releases it without any error reporting, so it can be
+ * polled. Clears the in-use flag on success.
+ */
+export const probeDeviceReleased = async (
+  kind: PermissionKind
+): Promise<boolean> => {
+  try {
+    const stream = await navigator.mediaDevices.getUserMedia(
+      kind === 'camera' ? { video: true } : { audio: true }
+    )
+    stream.getTracks().forEach((track) => track.stop())
+    noteDeviceReady(kind)
+    return true
+  } catch {
+    return false
+  }
+}
+
+/**
+ * Triggers the browser permission prompt for one device kind by acquiring
+ * and immediately releasing a track. Resolves to whether access was granted.
+ */
+export const requestDevicePermission = async (
+  kind: 'audioinput' | 'videoinput',
+  path: MediaPath = 'join_preview'
+): Promise<boolean> => {
+  try {
+    const track =
+      kind === 'audioinput'
+        ? await createLocalAudioTrack()
+        : await createLocalVideoTrack()
+    track.stop()
+    noteDeviceReady(PERMISSION_KIND[kind])
+    return true
+  } catch (error) {
+    onMediaPermissionError(error as Error, PERMISSION_KIND[kind], path)
+    return false
+  }
+}

src/frontend/src/features/rooms/routes/Room.tsx

@@ -16,6 +16,7 @@ import {
 import { useConfig } from '@/api/useConfig.ts'
 import { LogLevel, setLogLevel } from 'livekit-client'
 import { useWatchDeviceAvailability } from '@/features/rooms/hooks/useWatchDeviceAvailability'
+import { useWatchDeviceReleased } from '@/features/rooms/hooks/useWatchDeviceReleased'
 import { useRoomPageTitle } from '@/features/rooms/livekit/hooks/useRoomPageTitle'
 
 const BaseRoom = ({ children }: { children: ReactNode }) => {
@@ -49,6 +50,7 @@ const Room = () => {
 
   useKeyboardShortcuts()
   useWatchDeviceAvailability()
+  useWatchDeviceReleased()
 
   const clearRouterState = () => {
     if (window?.history?.state) {

src/frontend/src/features/settings/components/tabs/VideoTab.tsx

@@ -22,11 +22,6 @@ import {
 } from '@/stores/userChoices'
 import { RowWrapper } from './layout/RowWrapper'
 import { useSnapshot } from 'valtio'
-import {
-  disablePerformanceMode,
-  enablePerformanceMode,
-  performanceModeStore,
-} from '@/stores/performanceMode'
 
 export type VideoTabProps = Pick<DialogProps, 'onOpenChange'> &
   Pick<TabPanelProps, 'id'>
@@ -37,7 +32,7 @@ const EMPTY_PROPS = {}
 
 export const VideoTab = ({ id }: VideoTabProps) => {
   const { t } = useTranslation('settings', { keyPrefix: 'video' })
-  const { localParticipant } = useRoomContext()
+  const { localParticipant, remoteParticipants } = useRoomContext()
 
   const {
     videoDeviceId,
@@ -46,9 +41,6 @@ export const VideoTab = ({ id }: VideoTabProps) => {
     videoSubscribeQuality,
   } = useSnapshot(userChoicesStore)
 
-  const { enabled: isPerformanceModeEnabled } =
-    useSnapshot(performanceModeStore)
-
   const [videoElement, setVideoElement] = useState<HTMLVideoElement | null>(
     null
   )
@@ -93,6 +85,22 @@ export const VideoTab = ({ id }: VideoTabProps) => {
     }
   }
 
+  /**
+   * Updates video quality for all existing remote video tracks when user preference changes.
+   * LiveKit doesn't support setting video quality preferences at the room level for remote participants,
+   * so this function applies the selected quality to all existing remote video tracks.
+   * Hook useVideoResolutionSubscription updates quality preferences of new participants joining.
+   */
+  const updateExistingRemoteVideoQuality = (selectedQuality: VideoQuality) => {
+    remoteParticipants.forEach((participant) => {
+      participant.videoTrackPublications.forEach((publication) => {
+        if (publication.videoQuality !== selectedQuality) {
+          publication.setVideoQuality(selectedQuality)
+        }
+      })
+    })
+  }
+
   useEffect(() => {
     let videoTrack: LocalVideoTrack | null = null
 
@@ -209,13 +217,10 @@ export const VideoTab = ({ id }: VideoTabProps) => {
           type="select"
           label={t('resolution.publish.label')}
           items={resolutionItems}
-          selectedKey={
+          selectedKey={videoPublishResolution}
-            isPerformanceModeEnabled ? 'h360' : videoPublishResolution
-          }
           onSelectionChange={async (key) => {
             await handleVideoResolutionChange(key as VideoResolution)
           }}
-          isDisabled={isPerformanceModeEnabled}
           style={{
             width: '100%',
           }}
@@ -227,43 +232,19 @@ export const VideoTab = ({ id }: VideoTabProps) => {
           type="select"
           label={t('resolution.subscribe.label')}
           items={videoQualityItems}
-          selectedKey={
+          selectedKey={videoSubscribeQuality?.toString()}
-            isPerformanceModeEnabled
-              ? VideoQuality.LOW.toString()
-              : videoSubscribeQuality?.toString()
-          }
           onSelectionChange={(key) => {
             if (key == undefined) return
             const selectedQuality = Number(String(key))
             saveVideoSubscribeQuality(selectedQuality)
+            updateExistingRemoteVideoQuality(selectedQuality)
           }}
-          isDisabled={isPerformanceModeEnabled}
           style={{
             width: '100%',
           }}
         />
         <></>
       </RowWrapper>
-      <RowWrapper heading={t('performance.heading')}>
-        <Field
-          type="switch"
-          label={t('performance.label')}
-          description={t('performance.description')}
-          isSelected={isPerformanceModeEnabled}
-          onChange={(value) => {
-            if (value) {
-              enablePerformanceMode('manual')
-            } else {
-              disablePerformanceMode()
-            }
-          }}
-          wrapperProps={{
-            noMargin: true,
-            fullWidth: true,
-          }}
-        />
-        <></>
-      </RowWrapper>
     </TabPanel>
   )
 }

src/frontend/src/locales/de/notifications.json

@@ -18,10 +18,6 @@
     "auto": "Sie haben an einer großen Besprechung teilgenommen. Ihr Mikrofon wurde automatisch stummgeschaltet.",
     "dismiss": "Stummschaltung aufheben"
   },
-  "cpuConstrained": {
-    "message": "Ihr Gerät ist stark ausgelastet. Die Videoqualität wurde reduziert, um das Gespräch flüssig zu halten.",
-    "keepQuality": "Ursprüngliche Qualität beibehalten"
-  },
   "reaction": {
     "description": "{{name}} hat mit {{emoji}} reagiert"
   },

src/frontend/src/locales/de/rooms.json

@@ -16,6 +16,10 @@
       "videoinput": "Keine Kamera erkannt. Prüfe, ob sie richtig angeschlossen ist.",
       "audioinput": "Kein Mikrofon erkannt. Prüfe, ob es richtig angeschlossen ist."
     },
+    "deviceInUse": {
+      "videoinput": "Kamera nicht verfügbar: Sie wird wahrscheinlich von einer anderen App oder einem anderen Tab verwendet.",
+      "audioinput": "Mikrofon nicht verfügbar: Es wird wahrscheinlich von einer anderen App oder einem anderen Tab verwendet."
+    },
     "settings": {
       "audio": "Audioeinstellungen",
       "video": "Videoeinstellungen"
@@ -67,6 +71,7 @@
     },
     "cameraDisabled": "Kamera ist deaktiviert.",
     "cameraNotFound": "Keine Kamera erkannt. Prüfe, ob sie richtig angeschlossen ist.",
+    "cameraInUse": "Deine Kamera ist nicht verfügbar. Sie wird wahrscheinlich von einer anderen App oder einem anderen Tab verwendet.",
     "cameraStarting": "Kamera wird gestartet…",
     "cameraNotGranted": "Möchtest du, dass andere dich während des Meetings sehen können?",
     "cameraAndMicNotGranted": "Möchtest du, dass andere dich während des Meetings sehen und hören können?",
@@ -214,8 +219,11 @@
       "title": "Bildschirmfreigabe nicht möglich",
       "ariaLabel": "Bildschirmfreigabe nicht möglich",
       "message": "Deinem Browser fehlt möglicherweise die Berechtigung, den Bildschirm deines Geräts abzugreifen.",
-      "macInstructions": "Gehe zu den",
+      "settingsInstructions": "Gehe zu den",
-      "macSystemPreferences": "Systemeinstellungen",
+      "settingsLabel": {
+        "macos": "Systemeinstellungen",
+        "windows": "Windows-Datenschutzeinstellungen"
+      },
       "helpLinkText": "Weitere Informationen findest du unter",
       "helpLinkLabel": "Bildschirmfreigabeproblem",
       "closeButton": "Schließen",

src/frontend/src/locales/de/settings.json

@@ -70,11 +70,6 @@
         }
       }
     },
-    "performance": {
-      "heading": "Leistung",
-      "label": "Leistung priorisieren",
-      "description": "Reduziert die Qualität Ihrer Videos, um Ihr Gerät zu entlasten. Wird bei Überlastung automatisch aktiviert. Deaktivieren Sie diese Funktion, um wieder die maximale Qualität zu erhalten."
-    },
     "permissionsRequired": "Berechtigungen erforderlich"
   },
   "transcription": {

src/frontend/src/locales/en/notifications.json

@@ -18,10 +18,6 @@
     "auto": "You have joined a large meeting. Your microphone has been automatically muted.",
     "dismiss": "Unmute"
   },
-  "cpuConstrained": {
-    "message": "Your device is running low on processing power. Video quality has been reduced to keep the call smooth.",
-    "keepQuality": "Keep original quality"
-  },
   "reaction": {
     "description": "{{name}} reacted with {{emoji}}"
   },

src/frontend/src/locales/en/rooms.json

@@ -16,6 +16,10 @@
       "videoinput": "No camera detected. Check that it is properly wired.",
       "audioinput": "No microphone detected. Check that it is properly wired."
     },
+    "deviceInUse": {
+      "videoinput": "Camera unavailable: it is probably in use by another application or browser tab.",
+      "audioinput": "Microphone unavailable: it is probably in use by another application or browser tab."
+    },
     "settings": {
       "audio": "Audio settings",
       "video": "Video settings"
@@ -67,6 +71,7 @@
     },
     "cameraDisabled": "Camera is disabled.",
     "cameraNotFound": "No camera detected. Check that it is properly plugged in.",
+    "cameraInUse": "Your camera is unavailable. It is probably being used by another application or browser tab.",
     "cameraStarting": "Camera is starting…",
     "cameraNotGranted": "Would you like others to be able to see you during the meeting?",
     "cameraAndMicNotGranted": "Would you like others to be able to see and hear you during the meeting?",
@@ -214,8 +219,11 @@
       "title": "Unable to share your screen",
       "ariaLabel": "Unable to share your screen",
       "message": "Your browser may not be allowed to record the screen on your computer.",
-      "macInstructions": "Go to your",
+      "settingsInstructions": "Go to your",
-      "macSystemPreferences": "System Preferences",
+      "settingsLabel": {
+        "macos": "System Preferences",
+        "windows": "Windows privacy settings"
+      },
       "helpLinkText": "To learn more, see",
       "helpLinkLabel": "Presentation issue",
       "closeButton": "Dismiss",

src/frontend/src/locales/en/settings.json

@@ -70,11 +70,6 @@
         }
       }
     },
-    "performance": {
-      "heading": "Performance",
-      "label": "Prioritize performance",
-      "description": "Reduces the quality of your videos to take the strain off your device. Automatically activates in case of overload. Disable it to restore maximum quality."
-    },
     "permissionsRequired": "Permissions required"
   },
   "transcription": {

src/frontend/src/locales/fr/notifications.json

@@ -18,10 +18,6 @@
     "auto": "Vous venez de rejoindre une grande réunion. Votre micro a été automatiquement coupé.",
     "dismiss": "Rétablir le micro"
   },
-  "cpuConstrained": {
-    "message": "Votre appareil manque de puissance. La qualité vidéo a été réduite pour préserver la fluidité de l'appel.",
-    "keepQuality": "Conserver la qualité d'origine"
-  },
   "reaction": {
     "description": "{{name}} a reagi avec {{emoji}}"
   },

src/frontend/src/locales/fr/rooms.json

@@ -16,6 +16,10 @@
       "videoinput": "Aucune caméra détectée. Vérifiez qu'elle est bien branchée.",
       "audioinput": "Aucun microphone détecté. Vérifiez qu'il est bien branché."
     },
+    "deviceInUse": {
+      "videoinput": "Caméra indisponible : elle est probablement utilisée par une autre application ou un autre onglet.",
+      "audioinput": "Microphone indisponible : il est probablement utilisé par une autre application ou un autre onglet."
+    },
     "settings": {
       "audio": "Paramètres audio",
       "video": "Paramètres video"
@@ -67,6 +71,7 @@
     },
     "cameraDisabled": "La caméra est désactivée.",
     "cameraNotFound": "Aucune caméra détectée. Vérifiez qu'elle est bien branchée.",
+    "cameraInUse": "Votre caméra n'est pas disponible. Elle est probablement utilisée par une autre application ou un autre onglet.",
     "cameraStarting": "La caméra va démarrer…",
     "cameraNotGranted": "Souhaitez-vous que les autres puissent vous voir pendant la réunion ?",
     "cameraAndMicNotGranted": "Souhaitez-vous que les autres puissent vous voir et vous entendre pendant la réunion ?",
@@ -214,8 +219,11 @@
       "title": "Impossible de partager votre écran",
       "ariaLabel": "Impossible de partager votre écran",
       "message": "Il se peut que votre navigateur ne soit pas autorisé à enregistrer l'écran sur votre ordinateur.",
-      "macInstructions": "Accèdez à vos",
+      "settingsInstructions": "Accédez à vos",
-      "macSystemPreferences": "Préférences système",
+      "settingsLabel": {
+        "macos": "Préférences système",
+        "windows": "paramètres de confidentialité Windows"
+      },
       "helpLinkText": "Pour en savoir plus, consulter",
       "helpLinkLabel": "Problème de présentation",
       "closeButton": "Ignorer",

src/frontend/src/locales/fr/settings.json

@@ -70,11 +70,6 @@
         }
       }
     },
-    "performance": {
-      "heading": "Performances",
-      "label": "Privilégier les performances",
-      "description": "Réduit la qualité de vos vidéos pour soulager votre appareil. S’active automatiquement en cas de surcharge. Désactivez-la pour retrouver la qualité maximale."
-    },
     "permissionsRequired": "Autorisations nécessaires"
   },
   "transcription": {

src/frontend/src/locales/nl/notifications.json

@@ -18,10 +18,6 @@
     "auto": "U bent zojuist lid geworden van een grote vergadering. Uw microfoon is automatisch gedempt.",
     "dismiss": "Microfoon inschakelen"
   },
-  "cpuConstrained": {
-    "message": "Uw apparaat is zwaar belast. De videokwaliteit is verlaagd om het gesprek soepel te laten verlopen.",
-    "keepQuality": "Oorspronkelijke kwaliteit behouden"
-  },
   "reaction": {
     "description": "{{name}} reageerde met {{emoji}}"
   },

src/frontend/src/locales/nl/rooms.json

@@ -16,6 +16,10 @@
       "videoinput": "Geen camera gedetecteerd. Controleer of deze goed is aangesloten.",
       "audioinput": "Geen microfoon gedetecteerd. Controleer of deze goed is aangesloten."
     },
+    "deviceInUse": {
+      "videoinput": "Camera niet beschikbaar: deze wordt waarschijnlijk gebruikt door een andere toepassing of een ander tabblad.",
+      "audioinput": "Microfoon niet beschikbaar: deze wordt waarschijnlijk gebruikt door een andere toepassing of een ander tabblad."
+    },
     "settings": {
       "audio": "Audio-instellingen",
       "video": "Video-instellingen"
@@ -67,6 +71,7 @@
     },
     "cameraDisabled": "Camera is uitgeschakeld.",
     "cameraNotFound": "Geen camera gedetecteerd. Controleer of deze goed is aangesloten.",
+    "cameraInUse": "Je camera is niet beschikbaar. Deze wordt waarschijnlijk gebruikt door een andere toepassing of een ander tabblad.",
     "cameraStarting": "Camera wordt ingeschakeld…",
     "cameraNotGranted": "Wilt u dat anderen u tijdens de vergadering kunnen zien?",
     "cameraAndMicNotGranted": "Wilt u dat anderen u tijdens de vergadering kunnen zien en horen?",
@@ -214,8 +219,11 @@
       "title": "Kan uw scherm niet delen",
       "ariaLabel": "Kan uw scherm niet delen",
       "message": "Het is mogelijk dat uw browser geen toestemming heeft om het scherm op uw computer op te nemen.",
-      "macInstructions": "Ga naar uw",
+      "settingsInstructions": "Ga naar uw",
-      "macSystemPreferences": "Systeemvoorkeuren",
+      "settingsLabel": {
+        "macos": "Systeemvoorkeuren",
+        "windows": "Windows-privacyinstellingen"
+      },
       "helpLinkText": "Meer informatie, zie",
       "helpLinkLabel": "Presentatieprobleem",
       "closeButton": "Negeren",

src/frontend/src/locales/nl/settings.json

@@ -70,11 +70,6 @@
         }
       }
     },
-    "performance": {
-      "heading": "Prestaties",
-      "label": "Prestaties prioriteren",
-      "description": "Vermindert de kwaliteit van je video's om je apparaat te ontlasten. Wordt automatisch geactiveerd bij overbelasting. Schakel het uit om de maximale kwaliteit te herstellen."
-    },
     "permissionsRequired": "Machtigingen vereist"
   },
   "transcription": {

src/frontend/src/stores/deviceAvailability.ts

@@ -1,14 +1,39 @@
 import { proxy } from 'valtio'
 import { captureMediaEvent, reportError } from '@/features/analytics/telemetry'
+import type { PermissionKind } from './permissions'
 
-// Device presence (not permission): enumerateDevices() exposes kinds
+// Device availability (not permission):
-// before any grant. Optimistic defaults until the first sync.
+// - presence: enumerateDevices() exposes kinds before any grant.
+//   Optimistic defaults until the first sync.
+// - in use: the device exists and is allowed, but getUserMedia() failed
+//   because another application or tab is holding it.
 export const deviceAvailabilityStore = proxy({
   hasCamera: true,
   hasMicrophone: true,
+  cameraInUse: false,
+  microphoneInUse: false,
   synced: false,
 })
 
+const IN_USE_KEY: Record<PermissionKind, 'cameraInUse' | 'microphoneInUse'> = {
+  camera: 'cameraInUse',
+  microphone: 'microphoneInUse',
+}
+
+const ALL_KINDS: PermissionKind[] = ['camera', 'microphone']
+
+const setDeviceInUse = (inUse: boolean, kind?: PermissionKind) => {
+  for (const k of kind ? [kind] : ALL_KINDS) {
+    deviceAvailabilityStore[IN_USE_KEY[k]] = inUse
+  }
+}
+
+export const noteDeviceInUse = (kind?: PermissionKind) =>
+  setDeviceInUse(true, kind)
+
+export const clearDeviceInUse = (kind?: PermissionKind) =>
+  setDeviceInUse(false, kind)
+
 export const syncDeviceAvailability = async (): Promise<void> => {
   try {
     const devices = await navigator.mediaDevices.enumerateDevices()

src/frontend/src/stores/muteDialog.ts

@@ -0,0 +1,18 @@
+import { proxy, ref } from 'valtio'
+import type { Participant } from 'livekit-client'
+
+type State = {
+  participant: Participant | null
+}
+
+export const muteDialogStore = proxy<State>({
+  participant: null,
+})
+
+export const openMuteDialog = (participant: Participant) => {
+  muteDialogStore.participant = ref(participant)
+}
+
+export const closeMuteDialog = () => {
+  muteDialogStore.participant = null
+}

src/frontend/src/stores/performanceMode.ts

@@ -1,30 +0,0 @@
-import { proxy } from 'valtio'
-
-export type PerformanceModeTrigger = 'cpu' | 'manual'
-
-export const performanceModeStore = proxy<{
-  enabled: boolean
-  trigger: PerformanceModeTrigger | null
-  userDeclinedAuto: boolean
-}>({
-  enabled: false,
-  trigger: null,
-  userDeclinedAuto: false,
-})
-
-export const enablePerformanceMode = (trigger: PerformanceModeTrigger) => {
-  if (performanceModeStore.enabled) return
-  performanceModeStore.enabled = true
-  performanceModeStore.trigger = trigger
-}
-
-export const disablePerformanceMode = ({
-  declinedAuto = false,
-}: { declinedAuto?: boolean } = {}) => {
-  if (declinedAuto) {
-    performanceModeStore.userDeclinedAuto = true
-  }
-  if (!performanceModeStore.enabled) return
-  performanceModeStore.enabled = false
-  performanceModeStore.trigger = null
-}

src/frontend/vite.config.ts

@@ -5,16 +5,26 @@ import { visualizer } from 'rollup-plugin-visualizer'
 import svgr from 'vite-plugin-svgr'
 import { viteStaticCopy } from 'vite-plugin-static-copy'
 
-const mediapipeVersion: string = JSON.parse(
+const readPackageJson = (path: string) =>
-  readFileSync(
+  JSON.parse(readFileSync(new URL(path, import.meta.url), 'utf-8'))
-    new URL(
+
-      './node_modules/@mediapipe/tasks-vision/package.json',
+const mediapipeVersion: string = readPackageJson(
-      import.meta.url
+  './node_modules/@mediapipe/tasks-vision/package.json'
-    ),
-    'utf-8'
-  )
 ).version
 
+const livekitMediapipeVersion: string = readPackageJson(
+  './node_modules/@livekit/track-processors/package.json'
+).dependencies['@mediapipe/tasks-vision']
+
+if (mediapipeVersion !== livekitMediapipeVersion) {
+  throw new Error(
+    `@mediapipe/tasks-vision@${mediapipeVersion} is installed, but ` +
+      `@livekit/track-processors declares "${livekitMediapipeVersion}". ` +
+      `The two must stay in sync: pin "@mediapipe/tasks-vision" to ` +
+      `"${livekitMediapipeVersion}" in package.json.`
+  )
+}
+
 // https://vitejs.dev/config/
 export default defineConfig(({ mode }) => {
   const env = loadEnv(mode, process.cwd())

src/mail/package-lock.json

@@ -1,15 +1,15 @@
 {
   "name": "mail_mjml",
-  "version": "1.26.0",
+  "version": "1.27.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "mail_mjml",
-      "version": "1.26.0",
+      "version": "1.27.0",
       "license": "MIT",
       "dependencies": {
-        "@html-to/text-cli": "0.6.0",
+        "@html-to/text-cli": "0.6.1",
         "mjml": "5.4.0"
       }
     },
@@ -52,14 +52,14 @@
       "license": "MIT"
     },
     "node_modules/@html-to/text-cli": {
-      "version": "0.6.0",
+      "version": "0.6.1",
-      "resolved": "https://registry.npmjs.org/@html-to/text-cli/-/text-cli-0.6.0.tgz",
+      "resolved": "https://registry.npmjs.org/@html-to/text-cli/-/text-cli-0.6.1.tgz",
-      "integrity": "sha512-JwlrCBccUM/QkUpc37P+qG+hpkXRbWOVcHd9vM+5D+O82Ak2p8anGRxisr33//aJzlkYNKNg2I8LDh3Bx2tBPg==",
+      "integrity": "sha512-fnbLS8bra4BkGinXWzUKfalqLPYmz8E2ABT+TgHUZ4inhAUYF2rBEEctOKqZ6FgaJF1iZ//KBBLKVz6nm3RbhA==",
       "license": "MIT",
       "dependencies": {
         "@selderee/plugin-htmlparser2": "~0.12.0",
         "aspargvs": "~0.7.0",
-        "deepmerge-ts": "^7.1.5",
+        "deepmerge-ts": "^8.0.1",
         "htmlparser2": "^10.1.0",
         "selderee": "~0.12.0"
       },
@@ -656,9 +656,19 @@
       "license": "CC0-1.0"
     },
     "node_modules/deepmerge-ts": {
-      "version": "7.1.5",
+      "version": "8.0.1",
-      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-7.1.5.tgz",
+      "resolved": "https://registry.npmjs.org/deepmerge-ts/-/deepmerge-ts-8.0.1.tgz",
-      "integrity": "sha512-HOJkrhaYsweh+W+e74Yn7YStZOilkoPb6fycpwNLKzSPtruFs48nYis0zy5yJz1+ktUhHxoRDJ27RQAWLIJVJw==",
+      "integrity": "sha512-szCXE7YLCvLKR9bFPJcvsezOShdalctSvrgN/LM/QGUEPZQajwjmsMObZ6/DuANT5lxzM/wtO8Feubwdkz8myA==",
+      "funding": [
+        {
+          "type": "ko-fi",
+          "url": "https://ko-fi.com/rebeccastevens"
+        },
+        {
+          "type": "tidelift",
+          "url": "https://tidelift.com/funding/github/npm/deepmerge-ts"
+        }
+      ],
       "license": "BSD-3-Clause",
       "engines": {
         "node": ">=16.0.0"

src/mail/package.json

@@ -1,10 +1,10 @@
 {
   "name": "mail_mjml",
-  "version": "1.26.0",
+  "version": "1.27.0",
   "description": "An util to generate html and text django's templates from mjml templates",
   "type": "module",
   "dependencies": {
-    "@html-to/text-cli": "0.6.0",
+    "@html-to/text-cli": "0.6.1",
     "mjml": "5.4.0"
   },
   "private": true,

src/sdk/package-lock.json

@@ -1,12 +1,12 @@
 {
   "name": "sdk",
-  "version": "1.26.0",
+  "version": "1.27.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "sdk",
-      "version": "1.26.0",
+      "version": "1.27.0",
       "license": "ISC",
       "workspaces": [
         "./library",

src/sdk/package.json

@@ -1,6 +1,6 @@
 {
   "name": "sdk",
-  "version": "1.26.0",
+  "version": "1.27.0",
   "author": "",
   "license": "ISC",
   "description": "",

src/summary/pyproject.toml

@@ -1,7 +1,7 @@
 
 [project]
 name = "summary"
-version = "1.26.0"
+version = "1.27.0"
 dependencies = [
     "fastapi[standard]>=0.105.0",
     "uvicorn>=0.24.0",

src/summary/summary/core/config.py

@@ -83,6 +83,7 @@ class Settings(BaseSettings):
     aws_s3_access_key_id: str
     aws_s3_secret_access_key: SecretStr
     aws_s3_secure_access: bool = True
+    aws_s3_region_name: str | None = None
     aws_transcript_path: str = "transcripts"
     aws_summary_path: str = "summaries"
 

src/summary/summary/core/file_service.py

@@ -282,6 +282,7 @@ class FileService:
             access_key=settings.aws_s3_access_key_id,
             secret_key=settings.aws_s3_secret_access_key.get_secret_value(),
             secure=settings.aws_s3_secure_access,
+            region=settings.aws_s3_region_name,
         )
 
         self._bucket_name = settings.aws_storage_bucket_name

src/summary/summary/core/models.py

@@ -26,7 +26,7 @@ class RecordingMetadata(BaseModel):
 
     cloud_storage_url: Url = Field(
         title="Cloud Storage URL",
-        description="The URL of the metadata file for speaker assignement.",
+        description="The URL of the metadata file for speaker assignment.",
     )
     started_at: AwareDatetime = Field(title="Start time of the recording to transcribe")
     ended_at: AwareDatetime = Field(title="End time of the recording to transcribe")