Patch 1 initial release - scroll down for more
Patch 1 got released whilst I've been in the middle of a few things, so this is just an update to the core mod for now. For anyone who started modding BG3 post release (a lot of you apparently!!!), there needs to be an update to ImprovedUI almost every time that Larian releases a new patch if they make UI changes.
The UI changes that Larian made in their now-readable lengthy patch notes are contained within the "CHARACTER CREATION AND LEVEL UP" and "UI AND TOOLTIPS" section, as far as I've determined.