diff --git a/.changeset/curly-eels-carry.md b/.changeset/curly-eels-carry.md
new file mode 100644
index 000000000..9bc3b46a3
--- /dev/null
+++ b/.changeset/curly-eels-carry.md
@@ -0,0 +1,5 @@
+---
+"gitbook": patch
+---
+
+Add sidesheet component, use it for TOC and AIChat