update changelog for 50.12-r1

Author: myk002

changelog.txt

@@ -31,13 +31,19 @@ Template for new versions:
 ## New Features
 
 ## Fixes
-- `gui/notify`: persist notification settings when toggled in the UI
 
 ## Misc Improvements
-- `gui/launcher`: developer mode hotkey restored to Ctrl-D
 
 ## Removed
 
+# 50.12-r1
+
+## Fixes
+- `gui/notify`: persist notification settings when toggled in the UI
+
+## Misc Improvements
+- `gui/launcher`: developer mode hotkey restored to Ctrl-D
+
 # 50.11-r7
 
 ## New Tools