chore(release): update changelog for v3.9.0

Author: code-snippets-bot

CHANGELOG.md

@@ -1,5 +1,19 @@
 # Changelog
 
+
+## [3.9.0] (2025-11-13)
+
+### Added
+* Added contextual notices in the Snippets list table to surface action results and warnings in the UI
+* Expanded Multisite Sharing settings for clearer control over network-wide snippet sharing
+
+### Changed
+* Modernized browser support targets and polished admin UI (clearer row-action badges, improved Pro badge hover, refined active snippet name styling)
+
+### Fixed
+* Fixed REST API pagination to return correct results and page counts
+* Resolved styling selector so the active snippet name highlights reliably
+
 ## [3.9.0-beta.2] (2025-11-10)
 
 ### Added