remove redundancies

Author: ethanpalm

changelog.mdx

@@ -56,37 +56,10 @@ noindex: true
 
   Help users quickly connect your MCP server to Cursor or VS Code from any page in your docs via the contextual menu. See [Contextual menu](/ai/contextual-menu) for more information.
 
-  ## Authentication improvements
-
-  - Enhanced local development environment for auth features
-  - Preview deployments now available for auth-protected sites
-  - Fixed redirect behavior to properly return users to their original page
-  - Added logout button display for authenticated users
-
-  ## API playground enhancements
-
-  - Fixed `multipart/form-data` file upload functionality
-  - Improved anchor link behavior
-    - Clicking links updates URL without scrolling to top
-    - Resolved anchor link issues in nested tabs
-
-  ## Assistant updates
-  - Unified Assistant API that's compatible with the AI SDK
-  - Copy button added to chat responses
-  - Improved message retry functionality
-  - Less verbose default responses for better user experience
-
   ## Code block improvements
 
   - Improved syntax highlighting
   - Added more customization options including focus mode, expandable code blocks, dark and light mode responsiveness, language dropdown menu, line numbering, and icons
-
-  ## Performance and reliability
-
-  - Faster, more accurate search with debounced request cancellation
-  - Page, image, and asset load time optimizations
-  - Enhanced Mermaid diagram rendering, including GANTT chart support
-  - Improved CLI stability on Windows
 </Update>
 
 <Update label="June 2025" rss={{ title: "June Product Updates", description: "AI assistant updates and subscribable changelogs" }}>