docs: update changelog

Author: jamiebrynes7

docs/CLAUDE.md

@@ -70,6 +70,12 @@ The site supports versioned documentation with past versions stored in:
 2. Update `sidebars.ts` to include new pages in navigation
 3. Use MDX format for pages requiring React components
 
+### Changelog Guidelines
+- Focus on user benefits rather than implementation details
+- Keep feature entries concise - typically a single line without subpoints
+- Emphasize what the user can now do or how their experience improves
+- Avoid technical specifics like state management, CSS classes, or internal architecture
+
 ### Managing Versions
 - Only cut new documentation versions for minor/major releases
 - Patch releases typically don't need new doc versions

docs/docs/changelog.md

@@ -18,6 +18,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
   - For due date, you can select none, today, or tomorrow.
   - For project, you can select any project or the Inbox.
   - For labels, you can select one or more of the available labels.
+- Group headers in grouped task views are now collapsible, allowing you to hide sections you don't need to see.
 
 ### ⚙ Internal