Update CHANGELOG.md

Author: mrubens

CHANGELOG.md

@@ -1,10 +1,10 @@
 # Roo Code Changelog
 
-## 3.21.5
+## [3.21.5] - 2025-06-23
 
-### Patch Changes
-
--   - Fix Qdrant URL prefix handling for QdrantClient initialization (thanks @CW-B-W!)
+- Fix Qdrant URL prefix handling for QdrantClient initialization (thanks @CW-B-W!)
+- Improve LM Studio model detection to show all downloaded models (thanks @daniel-lxs!)
+- Resolve Claude Code provider JSON parsing and reasoning block display
 
 ## [3.21.4] - 2025-06-23