Apple has today released the final version of OS X 10.9.1.
The Release Notes state that this update includes the following fixes:
- Improved support for Gmail in OS X Mail, and fixes for users with custom Gmail settings
- Improves the reliability of Smart Mailboxes and search in Mail
- Fixes an issue that prevented contact groups from working properly in Mail
- Resolves an issue that prevented VoiceOver from speaking sentences that contain emoji
- Updates Shared Links periodically when open in the Safari Sidebar
It's possible that there may be other changes or fixes not mentioned above, so be sure to let us know of any that you find.
Apple has also released a specific version of OS X 10.9.1 designed for the late 2013 13 and 15-inch Retina MacBook Pros with "system specific enhancements" designed to improve stability and compatibility.