Update changelog.mdx

Co-authored-by: Ethan Palm <[email protected]>

Author: baell

changelog.mdx

@@ -26,10 +26,6 @@ noindex: true
 - Fixed history status endpoint reliability
 - Resolved middleware edge cases and onClick event handling issues
 
-## Infrastructure improvements
-
-- Various performance and reliability improvements
-
 </Update>
 
 <Update label="August 31 - September 13" tags={["New releases", "Improvements"]} rss={{ title: "Weekly Updates", description: "AI 404 suggestions, assistant web search with external sources, security enhancement, and reliability fixes" }}>