feat: add release notes for version 3.25.6 and update sidebar navigation

Author: hannesrudolph

docs/update-notes/index.md

@@ -19,6 +19,7 @@ This section contains notes about recent updates to Roo Code, listed by version
 
 ## Version 3.25
 
+*   [3.25.6](/update-notes/v3.25.6) (2025-08-02)
 *   [3.25.5](/update-notes/v3.25.5) (2025-08-01)
 *   [3.25.4](/update-notes/v3.25.4) (2025-07-31)
 *   [3.25.3](/update-notes/v3.25.3) (2025-07-30)

docs/update-notes/v3.25.6.mdx

@@ -0,0 +1,34 @@
+---
+description: Support for the new Horizon Beta stealth model on OpenRouter, plus cloud provider profile sync and bug fixes.
+keywords:
+  - roo code 3.25.6
+  - horizon beta
+  - stealth model
+  - cloud provider sync
+  - bug fixes
+image: /img/social-share.jpg
+---
+
+# Roo Code 3.25.6 Release Notes (2025-08-02)
+
+This release features support for the new Horizon Beta stealth model, cloud provider profile synchronization, and bug fixes.
+
+## Horizon Beta Stealth Model via OpenRouter
+
+We've optimized support for OpenRouter's new stealth model Horizon Beta ([#6577](https://github.com/RooCodeInc/Roo-Code/pull/6577)):
+
+- **Improved Performance**: Set max tokens to 32k for better response times (reduced from 128k default)
+- **Free to Use**: Thanks to OpenRouter, Horizon Beta is an improved version of Horizon Alpha and remains free
+- **Stealth Model**: Designed for enhanced privacy and performance
+
+A big thanks to OpenRouter for providing this innovative stealth model to the community!
+
+## Bug Fixes
+
+* **Claude Code Error Handling**: Fixed "spawn claude ENOENT" error when using Claude Code provider, now provides better error handling and installation guidance (thanks JamieJ1!) ([#6565](https://github.com/RooCodeInc/Roo-Code/pull/6565))
+
+## Misc Improvements
+
+* **Cloud Provider Profile Sync**: Added support for syncing provider profiles from the cloud, enabling automatic synchronization across devices and team collaboration ([#6540](https://github.com/RooCodeInc/Roo-Code/pull/6540))
+* **Type Definitions**: Updated @roo-code/types to v1.41.0 for latest type compatibility ([#6568](https://github.com/RooCodeInc/Roo-Code/pull/6568))
+

docs/update-notes/v3.25.mdx

@@ -126,6 +126,7 @@ Critical fixes that improve stability and compatibility:
 * **Qdrant Deletion**: Gracefully handles deletion errors to prevent indexing interruption
 * **LM Studio Context Length**: Models now correctly display their actual context length instead of "1"
 * **Claude Code Errors**: ENOENT errors now show helpful installation guidance
+* **Claude Code Error Handling**: Fixed "spawn claude ENOENT" error when using Claude Code provider, now provides better error handling and installation guidance (thanks JamieJ1!)
 * **Multi-file Edit Fix**: Fixed issue where Git diff views interfered with file operations (thanks hassoncs, szermatt!) ([#6350](https://github.com/RooCodeInc/Roo-Code/pull/6350))
 * **Non-QWERTY Keyboard Support**: Fixed keyboard shortcuts for Dvorak, AZERTY, and other layouts (thanks shlgug!) ([#6162](https://github.com/RooCodeInc/Roo-Code/pull/6162))
 * **Mode Export/Import**: Fixed custom mode export to handle slug changes correctly ([#6186](https://github.com/RooCodeInc/Roo-Code/pull/6186))
@@ -153,6 +154,8 @@ Critical fixes that improve stability and compatibility:
 * **SambaNova Provider**: Integrated SambaNova as a new LLM provider offering high-speed inference and broader model selection (thanks snova-jorgep!) ([#6188](https://github.com/RooCodeInc/Roo-Code/pull/6188))
 * **Chutes AI**: Added zai-org/GLM-4.5-FP8 model support ([#6441](https://github.com/RooCodeInc/Roo-Code/pull/6441))
 * **OpenRouter**: Set horizon-alpha model max tokens to 32k ([#6470](https://github.com/RooCodeInc/Roo-Code/pull/6470))
+* **Horizon Beta Stealth Model via OpenRouter**: Optimized support for OpenRouter's new stealth model Horizon Beta with 32k max tokens for better response times. Thanks to OpenRouter for providing this free, improved version of Horizon Alpha!
+* **Type Definitions**: Updated @roo-code/types to v1.41.0 for latest type compatibility
 * **Databricks**: Added support for /invocations endpoints pattern (thanks adambrand!) ([#6317](https://github.com/RooCodeInc/Roo-Code/pull/6317))
 
 ### Misc. Improvements
@@ -171,4 +174,5 @@ Critical fixes that improve stability and compatibility:
 * **Translation Improvements**: Updated auto-translate prompt and added translation check action ([#6430](https://github.com/RooCodeInc/Roo-Code/pull/6430), [#6393](https://github.com/RooCodeInc/Roo-Code/pull/6393))
 * **Mode Configuration**: Updated PR reviewer rules and mode configuration ([#6391](https://github.com/RooCodeInc/Roo-Code/pull/6391), [#6428](https://github.com/RooCodeInc/Roo-Code/pull/6428))
 * **Navigator Global Error**: Resolved errors by updating mammoth and bluebird dependencies ([#6363](https://github.com/RooCodeInc/Roo-Code/pull/6363))
-* **Nightly Build Fixes**: Resolved marketplace freezing issues with separate changelog ([#6449](https://github.com/RooCodeInc/Roo-Code/pull/6449))
+* **Nightly Build Fixes**: Resolved marketplace freezing issues with separate changelog ([#6449](https://github.com/RooCodeInc/Roo-Code/pull/6449))
+* **Cloud Provider Profile Sync**: Added support for syncing provider profiles from the cloud, enabling automatic synchronization across devices and team collaboration

sidebars.ts

@@ -207,6 +207,7 @@ const sidebars: SidebarsConfig = {
           label: '3.25',
           items: [
             { type: 'doc', id: 'update-notes/v3.25', label: '3.25 Combined' },
+            { type: 'doc', id: 'update-notes/v3.25.6', label: '3.25.6' },
             { type: 'doc', id: 'update-notes/v3.25.5', label: '3.25.5' },
             { type: 'doc', id: 'update-notes/v3.25.4', label: '3.25.4' },
             { type: 'doc', id: 'update-notes/v3.25.3', label: '3.25.3' },