diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9c22f7..8fee916 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,8 @@ Format based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 
 ## [Unreleased]
 
+## [4.10.0] - 2026-09-11
+
 ### Changed
 
 - **genre-tree**: Bumped `@behindthemusictree/genre-tree-view` catalog pin to `1.6.0`.
diff --git a/packages/app-kit/package.json b/packages/app-kit/package.json
index 1316f1c..0cf93eb 100644
--- a/packages/app-kit/package.json
+++ b/packages/app-kit/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@behindthemusictree/app-kit",
-  "version": "4.9.1",
+  "version": "4.10.0",
   "description": "Shared transport, auth, popup, UI, player, and genre-tree plumbing for BehindTheMusicTree React apps",
   "repository": {
     "type": "git",