diff --git a/.claude-plugin/plugin.json b/.claude-plugin/plugin.json
index f54615a08..ac5e5e375 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": "0.7.76",
+  "version": "0.7.77",
   "author": {
     "name": "HeyGen",
     "email": "hyperframes@heygen.com",
diff --git a/.codex-plugin/plugin.json b/.codex-plugin/plugin.json
index 6d4340b15..9cb3b7c06 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": "0.7.76",
+  "version": "0.7.77",
   "author": {
     "name": "HeyGen",
     "email": "hyperframes@heygen.com",
diff --git a/.cursor-plugin/plugin.json b/.cursor-plugin/plugin.json
index b5389c51f..59dc297c7 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": "0.7.76",
+  "version": "0.7.77",
   "author": {
     "name": "HeyGen",
     "email": "hyperframes@heygen.com"
diff --git a/docs/changelog.mdx b/docs/changelog.mdx
index c879ed276..29d0bc043 100644
--- a/docs/changelog.mdx
+++ b/docs/changelog.mdx
@@ -8,6 +8,55 @@ 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 v0.7.77"
+  description="Released - 2026-07-28"
+  tags={["Release", "Studio", "CLI", "Check"]}
+>
+Studio's timeline now exposes expandable property lanes, track headers, precise
+keyframe retiming, and selection-safe editing across nested compositions. This
+release also makes stalled CLI download cleanup reliable on Windows and adds an
+opt-in prose-coverage floor to layout checks.
+
+## Features
+
+- **Studio:** Add expanded keyframe lanes, track headers, retiming interactions,
+  and nested-composition timeline support
+  ([#2791](https://github.com/heygen-com/hyperframes/pull/2791))
+- **Check:** Add the opt-in `proseCoverageFloor` layout rule
+  ([#2834](https://github.com/heygen-com/hyperframes/pull/2834))
+
+## Fixes
+
+- **CLI:** Wait for stalled download pipelines to release temporary files before
+  cleanup, fixing the Windows locked-file failure
+  ([#2835](https://github.com/heygen-com/hyperframes/pull/2835))
+- **Telemetry:** Send CLI feedback through the plain-event path instead of the
+  PostHog survey API
+  ([#2831](https://github.com/heygen-com/hyperframes/pull/2831))
+
+## Performance
+
+- **CI:** Distribute the two heaviest render fixtures and improve Docker layer
+  reuse for producer-only changes
+  ([#2825](https://github.com/heygen-com/hyperframes/pull/2825),
+  [#2822](https://github.com/heygen-com/hyperframes/pull/2822))
+
+## Docs & Examples
+
+- **Send-to guide:** Clarify that enhance turns are free and rendering is the
+  paid step
+  ([#2827](https://github.com/heygen-com/hyperframes/pull/2827))
+
+## Internal
+
+- **CLI:** Separate telemetry delivery from event policy while preserving the
+  queued flush and process-exit behavior
+  ([#2344](https://github.com/heygen-com/hyperframes/pull/2344))
+
+[View the full commit range](https://github.com/heygen-com/hyperframes/compare/v0.7.76...v0.7.77).
+</Update>
+
 <Update
   label="HyperFrames v0.7.76"
   description="Released - 2026-07-27"
diff --git a/packages/aws-lambda/package.json b/packages/aws-lambda/package.json
index 708c76cc1..fecdbc5cb 100644
--- a/packages/aws-lambda/package.json
+++ b/packages/aws-lambda/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/aws-lambda",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "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 6e0d7f3a4..9ec19ab95 100644
--- a/packages/cli/package.json
+++ b/packages/cli/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/cli",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "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 055bbe8ec..d8ea7e72a 100644
--- a/packages/core/package.json
+++ b/packages/core/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/core",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "description": "",
   "repository": {
     "type": "git",
diff --git a/packages/engine/package.json b/packages/engine/package.json
index 1dbf1e392..6ad8590da 100644
--- a/packages/engine/package.json
+++ b/packages/engine/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/engine",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "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 59f9bdaef..8f01299cd 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": "0.7.76",
+  "version": "0.7.77",
   "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 c281b9937..781c4057b 100644
--- a/packages/lint/package.json
+++ b/packages/lint/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/lint",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "repository": {
     "type": "git",
     "url": "https://github.com/heygen-com/hyperframes",
diff --git a/packages/parsers/package.json b/packages/parsers/package.json
index 40ceaca1c..1013edd9d 100644
--- a/packages/parsers/package.json
+++ b/packages/parsers/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/parsers",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "repository": {
     "type": "git",
     "url": "https://github.com/heygen-com/hyperframes",
diff --git a/packages/player/package.json b/packages/player/package.json
index 694839d12..6a4722b02 100644
--- a/packages/player/package.json
+++ b/packages/player/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/player",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "description": "Embeddable web component for HyperFrames compositions",
   "repository": {
     "type": "git",
diff --git a/packages/producer/package.json b/packages/producer/package.json
index b01115bde..18d5de470 100644
--- a/packages/producer/package.json
+++ b/packages/producer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/producer",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "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 8196c5be8..5024052d2 100644
--- a/packages/sdk/package.json
+++ b/packages/sdk/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/sdk",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "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 62557b07f..b2c794049 100644
--- a/packages/shader-transitions/package.json
+++ b/packages/shader-transitions/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/shader-transitions",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "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 16b18311c..74d19477d 100644
--- a/packages/studio-server/package.json
+++ b/packages/studio-server/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/studio-server",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "repository": {
     "type": "git",
     "url": "https://github.com/heygen-com/hyperframes",
diff --git a/packages/studio/package.json b/packages/studio/package.json
index dfe2f6062..7c3115b9d 100644
--- a/packages/studio/package.json
+++ b/packages/studio/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@hyperframes/studio",
-  "version": "0.7.76",
+  "version": "0.7.77",
   "description": "",
   "repository": {
     "type": "git",
diff --git a/releases/v0.7.77.md b/releases/v0.7.77.md
new file mode 100644
index 000000000..461d8ed0f
--- /dev/null
+++ b/releases/v0.7.77.md
@@ -0,0 +1,48 @@
+# HyperFrames v0.7.77
+
+Released on 2026-07-28.
+
+Studio's timeline now exposes expandable property lanes, track headers, precise
+keyframe retiming, and selection-safe editing across nested compositions. This
+release also makes stalled CLI download cleanup reliable on Windows and adds an
+opt-in prose-coverage floor to layout checks.
+
+## Features
+
+- **Studio:** Add expanded keyframe lanes, track headers, retiming interactions,
+  and nested-composition timeline support
+  ([#2791](https://github.com/heygen-com/hyperframes/pull/2791))
+- **Check:** Add the opt-in `proseCoverageFloor` layout rule
+  ([#2834](https://github.com/heygen-com/hyperframes/pull/2834))
+
+## Fixes
+
+- **CLI:** Wait for stalled download pipelines to release temporary files before
+  cleanup, fixing the Windows locked-file failure
+  ([#2835](https://github.com/heygen-com/hyperframes/pull/2835))
+- **Telemetry:** Send CLI feedback through the plain-event path instead of the
+  PostHog survey API
+  ([#2831](https://github.com/heygen-com/hyperframes/pull/2831))
+
+## Performance
+
+- **CI:** Distribute the two heaviest render fixtures and improve Docker layer
+  reuse for producer-only changes
+  ([#2825](https://github.com/heygen-com/hyperframes/pull/2825),
+  [#2822](https://github.com/heygen-com/hyperframes/pull/2822))
+
+## Docs & Examples
+
+- **Send-to guide:** Clarify that enhance turns are free and rendering is the
+  paid step
+  ([#2827](https://github.com/heygen-com/hyperframes/pull/2827))
+
+## Internal
+
+- **CLI:** Separate telemetry delivery from event policy while preserving the
+  queued flush and process-exit behavior
+  ([#2344](https://github.com/heygen-com/hyperframes/pull/2344))
+
+## Full changelog
+
+https://github.com/heygen-com/hyperframes/compare/v0.7.76...v0.7.77