This build has a number of showstopper bugs, including the inability to keyframe properties.
It is recommended to use the 4.2.2 builds or higher.
This release has a new fresh set of features including Asset Shelves for the 3D View and Node Editors, new Power User tools subdivision parity opt-in, Grease Pencil 3.0 interface love, extensions UX love! With another 33 task and features added to everything from the latest from Blender 4.2.1 and 4.3.0 Alpha (main branch) to the date.
The full release notes
Every change, the task log and the downloads for Bforartists 4.2.1 are on its release page.
