diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5e3fa853..b40f029b 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,19 @@
+# [0.4.0](https://github.com/siddharthksah/Stirling-Image/compare/v0.3.1...v0.4.0) (2026-03-23)
+
+
+### Bug Fixes
+
+* streamline CI/CD — remove broken AI docs updater, fix Docker publish ([ad2c96d](https://github.com/siddharthksah/Stirling-Image/commit/ad2c96d7b86b55b602e973f5da30d517605ed5cd))
+
+
+### Features
+
+* add CSS transform props to ImageViewer for live rotate/flip preview ([de3340f](https://github.com/siddharthksah/Stirling-Image/commit/de3340fc5b201cc5c046cbb38a274e7dfa026b41))
+* add live preview callback to RotateSettings, rename button to Apply ([17be50b](https://github.com/siddharthksah/Stirling-Image/commit/17be50b213e1ca6d1d6e8d949b65de70c68d108d))
+* add SideBySideComparison component for resize results ([d037305](https://github.com/siddharthksah/Stirling-Image/commit/d037305f29a32ead0addf6d79ace4823c9ba0e2b))
+* conditional result views — side-by-side for resize, live preview for rotate ([f0d18be](https://github.com/siddharthksah/Stirling-Image/commit/f0d18bee5ebc110e63bb3cf9fd829d80900759ce))
+* rewrite resize settings with tab-based UI (presets, custom, scale) ([b9f3ac0](https://github.com/siddharthksah/Stirling-Image/commit/b9f3ac0d222f3712d35becd6c831dc62f728a16a))
+
 ## [0.3.1](https://github.com/siddharthksah/Stirling-Image/compare/v0.3.0...v0.3.1) (2026-03-23)
 
 
diff --git a/apps/api/package.json b/apps/api/package.json
index c6dee696..3ba183c4 100644
--- a/apps/api/package.json
+++ b/apps/api/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/api",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/apps/docs/package.json b/apps/docs/package.json
index 627f1db7..88813473 100644
--- a/apps/docs/package.json
+++ b/apps/docs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/docs",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "private": true,
   "scripts": {
     "docs:dev": "vitepress dev .",
diff --git a/apps/web/package.json b/apps/web/package.json
index a2ae0171..c1754444 100644
--- a/apps/web/package.json
+++ b/apps/web/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/web",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "private": true,
   "type": "module",
   "scripts": {
diff --git a/package.json b/package.json
index 49438419..17a6167a 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "stirling-image",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "private": true,
   "packageManager": "pnpm@9.15.4",
   "scripts": {
diff --git a/packages/ai/package.json b/packages/ai/package.json
index 2645fd75..f5246379 100644
--- a/packages/ai/package.json
+++ b/packages/ai/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/ai",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "private": true,
   "type": "module",
   "main": "./src/index.ts",
diff --git a/packages/image-engine/package.json b/packages/image-engine/package.json
index c8b53bcd..69af1743 100644
--- a/packages/image-engine/package.json
+++ b/packages/image-engine/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/image-engine",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "private": true,
   "type": "module",
   "main": "./src/index.ts",
diff --git a/packages/shared/package.json b/packages/shared/package.json
index 7cfe2231..39e0a78f 100644
--- a/packages/shared/package.json
+++ b/packages/shared/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@stirling-image/shared",
-  "version": "0.3.1",
+  "version": "0.4.0",
   "private": true,
   "type": "module",
   "main": "./src/index.ts",
diff --git a/packages/shared/src/constants.ts b/packages/shared/src/constants.ts
index 73c605f6..ebd34959 100644
--- a/packages/shared/src/constants.ts
+++ b/packages/shared/src/constants.ts
@@ -88,4 +88,4 @@ export const SOCIAL_MEDIA_PRESETS: SocialMediaPreset[] = [
   { platform: "Threads", name: "Post Image", width: 1080, height: 1080 },
 ];
 
-export const APP_VERSION = "0.3.1";
+export const APP_VERSION = "0.4.0";