Do you have the changelog?
No changelog has been posted but from the things I've noticed during the testing session of this update:
- Fixed the text cutting off out of the UI if it's too long
- Greatly improved AI behavior
- Added Patreon AI servers
- Fixed energy miscalculation bug during sex (this is why many of us struggled with the sex system, it's A LOT better now)
There's probably a lot more done but overall the performance of the game is a lot better now. In addition to that, this should be the final patreon update before the public one releases as the main reason for this one is to test how the AI servers will perform with more people using it as well as to work out any potential kinks & issues with the API generation if needed prior to public release.
Public release should be really close btw.