diff --git a/CHANGELOG.md b/CHANGELOG.md
index 82ced72d..91483224 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -4,6 +4,8 @@ All notable changes to this project will be documented in this file.
 
 ## [Unreleased]
 
+## [1.16.3] - 2026-07-22
+
 - **Chat attachments:** added Office and OpenDocument files (`.docx`, `.pptx`, `.xlsx`, `.odt`, `.odp`, and `.ods`), with readable text and supported embedded images extracted before sending. Attachments also support more source-code formats, notebooks, HAR files with credentials and cookies removed, SVG and Draw.io files, and HEIC/HEIF images; the composer warns when the selected model may ignore an attachment type.
 - **Performance:** opening and switching sessions now prioritizes the selected and visible chats in large workspaces. Failed refreshes keep the existing session list, parent sessions no longer disappear when their sub-sessions load first, and session data no longer crosses between instances, projects, or worktrees.
 - **Sessions/Worktrees**: idle root sessions can now be moved with their sub-sessions and uncommitted changes into a new worktree. Worktree creation also recovers when an earlier Git operation left the repository locked.
diff --git a/package.json b/package.json
index de7013e2..7295546d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "openchamber-monorepo",
-  "version": "1.16.2",
+  "version": "1.16.3",
   "description": "OpenChamber monorepo workspace for web, ui, and desktop runtimes",
   "private": true,
   "type": "module",
diff --git a/packages/electron/package.json b/packages/electron/package.json
index 6864d60c..645323b7 100644
--- a/packages/electron/package.json
+++ b/packages/electron/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@openchamber/electron",
-  "version": "1.16.2",
+  "version": "1.16.3",
   "private": true,
   "description": "Electron desktop runtime for OpenChamber",
   "author": "OpenChamber",
diff --git a/packages/ui/package.json b/packages/ui/package.json
index 36e26ffa..e4e512c4 100644
--- a/packages/ui/package.json
+++ b/packages/ui/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@openchamber/ui",
-  "version": "1.16.2",
+  "version": "1.16.3",
   "private": true,
   "type": "module",
   "main": "src/main.tsx",
diff --git a/packages/vscode/CHANGELOG.md b/packages/vscode/CHANGELOG.md
index 64c9588a..4fa51a00 100644
--- a/packages/vscode/CHANGELOG.md
+++ b/packages/vscode/CHANGELOG.md
@@ -1,4 +1,4 @@
-## [Unreleased]
+## [1.16.3] - 2026-07-22
 
 - **Chat attachments:** added Office and OpenDocument files (`.docx`, `.pptx`, `.xlsx`, `.odt`, `.odp`, and `.ods`), with readable text and supported embedded images extracted before sending. Attachments also support more source-code formats, notebooks, HAR files with credentials and cookies removed, SVG and Draw.io files, and HEIC/HEIF images; the composer warns when the selected model may ignore an attachment type.
 - **Performance:** opening and switching sessions now prioritizes the selected and visible chats in large workspaces. Failed refreshes keep the existing session list, parent sessions no longer disappear when their sub-sessions load first, and session data no longer crosses between workspaces or extension views.
diff --git a/packages/vscode/package.json b/packages/vscode/package.json
index ef267ac8..afce7a72 100644
--- a/packages/vscode/package.json
+++ b/packages/vscode/package.json
@@ -2,7 +2,7 @@
   "name": "openchamber",
   "displayName": "OpenChamber",
   "description": "%extension.description%",
-  "version": "1.16.2",
+  "version": "1.16.3",
   "publisher": "fedaykindev",
   "private": true,
   "repository": {
diff --git a/packages/web/package.json b/packages/web/package.json
index 8b229567..d2795429 100644
--- a/packages/web/package.json
+++ b/packages/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@openchamber/web",
-  "version": "1.16.2",
+  "version": "1.16.3",
   "private": false,
   "type": "module",
   "main": "./server/index.js",