diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
index a798bf7aa2..de4287a814 100644
--- a/.claude-plugin/plugin.json
+++ b/.claude-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "hyperframes",
   "description": "HyperFrames by HeyGen. Write HTML, render video. Compositions, GSAP and runtime adapter animations, captions, voiceovers, audio-reactive visuals, and website capture for HyperFrames.",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "author": {
     "name": "HeyGen",
     "email": "hyperframes@heygen.com",
diff --git a/.codex-plugin/plugin.json b/.codex-plugin/plugin.json
index f513c56df5..bc36b21499 100644
--- a/.codex-plugin/plugin.json
+++ b/.codex-plugin/plugin.json
@@ -1,7 +1,7 @@
 {
   "name": "hyperframes",
   "description": "Write HTML, render video. Compositions, Tailwind v4 styles, GSAP and runtime adapter animations, captions, voiceovers, audio-reactive visuals, and website capture for HyperFrames.",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "author": {
     "name": "HeyGen",
     "email": "hyperframes@heygen.com",
diff --git a/.cursor-plugin/plugin.json b/.cursor-plugin/plugin.json
index 77c8980cea..1ec27dac89 100644
--- a/.cursor-plugin/plugin.json
+++ b/.cursor-plugin/plugin.json
@@ -3,7 +3,7 @@
   "name": "hyperframes",
   "displayName": "HyperFrames by HeyGen",
   "description": "Write HTML, render video. Compositions, Tailwind v4 styles, GSAP and runtime adapter animations, captions, voiceovers, audio-reactive visuals, and website capture for HyperFrames.",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "author": {
     "name": "HeyGen",
     "email": "hyperframes@heygen.com"
diff --git a/docs/changelog.mdx b/docs/changelog.mdx
index 9bb3edf0e8..bed86136b0 100644
--- a/docs/changelog.mdx
+++ b/docs/changelog.mdx
@@ -8,6 +8,33 @@ Recent HyperFrames releases, including user-facing features, fixes, and migratio
 
 {/* New release entries are prepended by `bun run changelog:draft <version> --write`. */}
 
+<Update
+  label="HyperFrames v0.8.57"
+  description="Released - 2026-09-20"
+  tags={["Release", "Studio"]}
+>
+Studio now says which project it is actually serving when a link points at one it cannot open, instead of failing quietly. Links to a project that was renamed or deleted are caught as you navigate, and the address bar is corrected.
+
+## Features
+
+- **Studio:** Say which project this Studio is serving when a read 404s ([f476e78cc](https://github.com/heygen-com/hyperframes/commit/f476e78cc83d7fe4b5c28a769157e59eeba80812), [#4228](https://github.com/heygen-com/hyperframes/pull/4228)).
+- **Studio:** A per-page tab id, and the hash-validation verdict ([7abbe4963](https://github.com/heygen-com/hyperframes/commit/7abbe49638ce2f210ffb812d171146ff312dbb4b), [#4224](https://github.com/heygen-com/hyperframes/pull/4224)).
+- **Studio:** Compose preview overlay guides ([243ecd1d1](https://github.com/heygen-com/hyperframes/commit/243ecd1d1080e96d38c17e1189688aba64885312), [#4220](https://github.com/heygen-com/hyperframes/pull/4220)).
+- **Studio:** Edit a clip's speed ramp with a rate lane and presets ([0c158be16](https://github.com/heygen-com/hyperframes/commit/0c158be165068cbbce55d0613750e7474d3c486a), [#4153](https://github.com/heygen-com/hyperframes/pull/4153)).
+
+## Fixes
+
+- **Studio:** Validate the hash on hashchange, and stop pushing dead ids ([74af8b427](https://github.com/heygen-com/hyperframes/commit/74af8b4279e01d2250cd0625c1ce65214e54e0e9), [#4225](https://github.com/heygen-com/hyperframes/pull/4225)).
+- **Studio:** Swap the preview via a shadow iframe instead of blanking on reload ([85a1a8f78](https://github.com/heygen-com/hyperframes/commit/85a1a8f7897b58ff20dbd1b90b33997c062fb7cd), [#4207](https://github.com/heygen-com/hyperframes/pull/4207)).
+
+## Internal
+
+- **Studio:** Compose timeline parts through TimelineProvider ([ab6cbb383](https://github.com/heygen-com/hyperframes/commit/ab6cbb383e9072a121714bd594cfba6a5a5ecbe7), [#4222](https://github.com/heygen-com/hyperframes/pull/4222)).
+- **Studio:** Move playback adapter resolution into its own module ([fa699b7d9](https://github.com/heygen-com/hyperframes/commit/fa699b7d9bad220217cd59faee00b22e9a6c1691), [#4199](https://github.com/heygen-com/hyperframes/pull/4199)).
+
+[View the full commit range](https://github.com/heygen-com/hyperframes/compare/v0.8.56...v0.8.57).
+</Update>
+
 <Update
   label="HyperFrames v0.8.56"
   description="Released - 2026-09-20"
diff --git a/packages/aws-lambda/package.json b/packages/aws-lambda/package.json
index 24c270d40f..ca0a29bfe4 100644
--- a/packages/aws-lambda/package.json
+++ b/packages/aws-lambda/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/aws-lambda",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "AWS Lambda adapter for HyperFrames distributed rendering — handler, client-side SDK, and CDK construct.",
   "repository": {
     "type": "git",
diff --git a/packages/cli/package.json b/packages/cli/package.json
index 6fe9311044..cee449b27b 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/cli",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "HyperFrames CLI — create, preview, and render HTML video compositions",
   "license": "Apache-2.0",
   "repository": {
diff --git a/packages/core/package.json b/packages/core/package.json
index 69288f6abf..9036c38cb9 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/core",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "",
   "repository": {
     "type": "git",
diff --git a/packages/engine/package.json b/packages/engine/package.json
index 54cf04e790..e396876ed2 100644
--- a/packages/engine/package.json
+++ b/packages/engine/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/engine",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "Seekable web page to video rendering engine (Puppeteer + FFmpeg)",
   "repository": {
     "type": "git",
diff --git a/packages/gcp-cloud-run/package.json b/packages/gcp-cloud-run/package.json
index 6901d80501..b56f81ad01 100644
--- a/packages/gcp-cloud-run/package.json
+++ b/packages/gcp-cloud-run/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/gcp-cloud-run",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "Google Cloud Run + Workflows adapter for HyperFrames distributed rendering — request handler, client-side SDK, and Terraform module.",
   "repository": {
     "type": "git",
diff --git a/packages/lint/package.json b/packages/lint/package.json
index 30701c0177..1bd382de53 100644
--- a/packages/lint/package.json
+++ b/packages/lint/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/lint",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "repository": {
     "type": "git",
     "url": "https://github.com/heygen-com/hyperframes",
diff --git a/packages/parsers/package.json b/packages/parsers/package.json
index 1538e7b253..957df1c0e3 100644
--- a/packages/parsers/package.json
+++ b/packages/parsers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/parsers",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "repository": {
     "type": "git",
     "url": "https://github.com/heygen-com/hyperframes",
diff --git a/packages/player/package.json b/packages/player/package.json
index e783d17a66..6b00a56ed9 100644
--- a/packages/player/package.json
+++ b/packages/player/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/player",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "Embeddable web component for HyperFrames compositions",
   "repository": {
     "type": "git",
diff --git a/packages/producer/package.json b/packages/producer/package.json
index 167bb8a2c4..24e9f2d0bf 100644
--- a/packages/producer/package.json
+++ b/packages/producer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/producer",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "HTML-to-video rendering engine using Chrome's BeginFrame API",
   "repository": {
     "type": "git",
diff --git a/packages/sdk/package.json b/packages/sdk/package.json
index 5fc18bf2b9..728923a36a 100644
--- a/packages/sdk/package.json
+++ b/packages/sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/sdk",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "Headless, framework-neutral HyperFrames composition editing engine",
   "repository": {
     "type": "git",
diff --git a/packages/shader-transitions/package.json b/packages/shader-transitions/package.json
index f24a09a9e5..df2f1136b3 100644
--- a/packages/shader-transitions/package.json
+++ b/packages/shader-transitions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/shader-transitions",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "WebGL shader transitions for HyperFrames compositions",
   "repository": {
     "type": "git",
diff --git a/packages/studio-server/package.json b/packages/studio-server/package.json
index 7573323f01..caab4fdd2f 100644
--- a/packages/studio-server/package.json
+++ b/packages/studio-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/studio-server",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "repository": {
     "type": "git",
     "url": "https://github.com/heygen-com/hyperframes",
diff --git a/packages/studio/package.json b/packages/studio/package.json
index 55d744e0ad..d004e0cbb5 100644
--- a/packages/studio/package.json
+++ b/packages/studio/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/studio",
-  "version": "0.8.56",
+  "version": "0.8.57",
   "description": "",
   "repository": {
     "type": "git",
diff --git a/releases/v0.8.57.md b/releases/v0.8.57.md
new file mode 100644
index 0000000000..9c220f5377
--- /dev/null
+++ b/releases/v0.8.57.md
@@ -0,0 +1,26 @@
+# HyperFrames v0.8.57
+
+Released on 2026-09-20.
+
+Studio now says which project it is actually serving when a link points at one it cannot open, instead of failing quietly. Links to a project that was renamed or deleted are caught as you navigate, and the address bar is corrected.
+
+## Features
+
+- **Studio:** Say which project this Studio is serving when a read 404s ([f476e78cc](https://github.com/heygen-com/hyperframes/commit/f476e78cc83d7fe4b5c28a769157e59eeba80812), [#4228](https://github.com/heygen-com/hyperframes/pull/4228)).
+- **Studio:** A per-page tab id, and the hash-validation verdict ([7abbe4963](https://github.com/heygen-com/hyperframes/commit/7abbe49638ce2f210ffb812d171146ff312dbb4b), [#4224](https://github.com/heygen-com/hyperframes/pull/4224)).
+- **Studio:** Compose preview overlay guides ([243ecd1d1](https://github.com/heygen-com/hyperframes/commit/243ecd1d1080e96d38c17e1189688aba64885312), [#4220](https://github.com/heygen-com/hyperframes/pull/4220)).
+- **Studio:** Edit a clip's speed ramp with a rate lane and presets ([0c158be16](https://github.com/heygen-com/hyperframes/commit/0c158be165068cbbce55d0613750e7474d3c486a), [#4153](https://github.com/heygen-com/hyperframes/pull/4153)).
+
+## Fixes
+
+- **Studio:** Validate the hash on hashchange, and stop pushing dead ids ([74af8b427](https://github.com/heygen-com/hyperframes/commit/74af8b4279e01d2250cd0625c1ce65214e54e0e9), [#4225](https://github.com/heygen-com/hyperframes/pull/4225)).
+- **Studio:** Swap the preview via a shadow iframe instead of blanking on reload ([85a1a8f78](https://github.com/heygen-com/hyperframes/commit/85a1a8f7897b58ff20dbd1b90b33997c062fb7cd), [#4207](https://github.com/heygen-com/hyperframes/pull/4207)).
+
+## Internal
+
+- **Studio:** Compose timeline parts through TimelineProvider ([ab6cbb383](https://github.com/heygen-com/hyperframes/commit/ab6cbb383e9072a121714bd594cfba6a5a5ecbe7), [#4222](https://github.com/heygen-com/hyperframes/pull/4222)).
+- **Studio:** Move playback adapter resolution into its own module ([fa699b7d9](https://github.com/heygen-com/hyperframes/commit/fa699b7d9bad220217cd59faee00b22e9a6c1691), [#4199](https://github.com/heygen-com/hyperframes/pull/4199)).
+
+## Full changelog
+
+https://github.com/heygen-com/hyperframes/compare/v0.8.56...v0.8.57