Revise CHANGELOG for version 3.26.2 updates

Updated changelog for version 3.26.2 to include new features and fixes.

Author: mrubens

CHANGELOG.md

@@ -1,10 +1,11 @@
 # Roo Code Changelog
 
-## 3.26.2
+## [3.26.2] - 2025-08-28
 
-### Patch Changes
-
--   - feat: Add experimental image generation tool with OpenRouter integration (thanks @daniel-lxs!)
+- feat: Add experimental image generation tool with OpenRouter integration (thanks @daniel-lxs!)
+- Fix: Resolve GPT-5 Responses API issues with condensing and image support (#7334 by @nlbuescher, PR by @daniel-lxs)
+- Fix: Hide .rooignore'd files from environment details by default (#7368 by @AlexBlack772, PR by @app/roomote)
+- Fix: Exclude browser scroll actions from repetition detection (#7470 by @cgrierson-smartsheet, PR by @app/roomote)
 
 ## [3.26.1] - 2025-08-27