Check out our release notes: https://github.com/getkirby/kirby/releases/tag/3.6.0-beta.1
We’ve also updated our 3.6 site with info and docs about all changes and new features: http://getkirby.com/releases/3.6
My highlights of this release:
a) it’s no longer alpha
b) you can now fully extend all core aspects of the Panel (searches, dropdowns, dialogs, views) This is a game changer for plugins! Check out the Fiber docs on our release site for details.
c) we have a bunch of really nice new icons and a lot of other cool enhancements