diff --git a/CHANGELOG.md b/CHANGELOG.md
index a2c0d77..7902294 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -8,6 +8,8 @@ Follows [Keep a Changelog](https://keepachangelog.com/en/1.0.0/) · versioned wi
## [Unreleased]
### Changed
+- **Generation namespace migration.** WAV merging, chunked TTS, history, playlist, effects, and refinement helpers now
+ use a private scope with explicit compatibility exports and a `window.TTVC.generation` API.
- **STT namespace migration.** STT backend selection, microphone recording, voice loading, and STT-to-TTS helpers now
use a private scope with live compatibility accessors and a `window.TTVC.stt` API.
- **AI-backend namespace migration.** LLM snippets and backend interaction controls now live behind a private section scope
diff --git a/VERSION b/VERSION
index da128ef..b7a47c2 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.24.83
+1.24.84
diff --git a/docs/ARCHITECTURE.md b/docs/ARCHITECTURE.md
index 560237b..43ae090 100644
--- a/docs/ARCHITECTURE.md
+++ b/docs/ARCHITECTURE.md
@@ -73,6 +73,7 @@ Done incrementally as global-scope ordered files (no ES-module change needed)
- ✅ Integration endpoint and API-snippet helpers use a private scope with explicit voice/endpoint compatibility exports.
- ✅ AI-backend section interactions and snippet initialization use a private scope with an explicit namespace API.
- ✅ STT backend, recording, voice-loading, and STT-to-TTS helpers use a private scope with live compatibility accessors.
+- ✅ Generation audio/history/playlist helpers use a private scope with explicit compatibility exports and a namespace API.
- ✅ `static/css/resource-diagnostics.css` — isolated Performance/resource diagnostic panel styles.
- ✅ `static/css/background-jobs.css` — isolated background-job history and retry-panel styles.
- ✅ `static/css/voice-design.css` — isolated Voice Design form, samples, and preview-match styles.
diff --git a/static/index.html b/static/index.html
index f372145..eaaced4 100644
--- a/static/index.html
+++ b/static/index.html
@@ -10,7 +10,7 @@
-
+
@@ -27,12 +27,12 @@
-
-
-
-
-
-
+
+
+
+
+
+
@@ -397,7 +397,7 @@ window.toggleNavTree = function(treeId, chevronId) {
-
+