Add February 25, 2026 release notes

Author: matthewfurnari

README.md

@@ -31,6 +31,7 @@ Or start a session in the web UI and manage it from any browser. Use Tailscale t
 ## Release Notes
 
 - [Release Notes - February 23, 2026](docs/release-notes-2026-02-23.md)
+- [Release Notes - February 25, 2026](docs/release-notes-2026-02-25.md)
 
 ## ⚡ Quick Start
 

docs/release-notes-2026-02-25.md

@@ -0,0 +1,33 @@
+# Release Notes - February 25, 2026
+
+## New Features
+
+### UI and Workflow Improvements
+
+We made several changes to make the workspace easier to scan and manage during long sessions.
+
+- Added a new settings page with a theme toggle and collapsible sidebar navigation.
+- Added a new compact timeline jump mode that makes it faster to jump between user messages.
+- Added support for collapsing expanded sections so timeline details stay manageable.
+- Restored model and reasoning labels in the header settings menu so context is always clear.
+- Improved dark mode visibility in project and selection states for better readability.
+
+![Dark mode contrast improvements](../screenshots/dark-mode.png)
+
+![Collapsed jump sections](../screenshots/collapsed-sections.png)
+
+### Reliability Improvements
+
+Session state is now more reliable after cancels, catalog updates, and recovery edges.
+
+- Fixed stale processing UI after cancel acknowledgements and catalog merges.
+- Improved cancel fallback behavior when a forced clear is needed.
+- Generalized stale inferred turn recovery for any in-flight turn.
+- Added recover logic for inferred stale turns based on log inactivity.
+- Aligned cancel status text with forced state clear states.
+
+### Timeline and Header Clarity
+
+- Simplified the timeline header model and reasoning summary presentation.
+- Restored model and reasoning labels in the session header controls after the compact redesign.
+- Kept dark mode sidebar and project label visibility tuned for longer use sessions.