I'm seeing lots of bug fixes.
two that have aggravated me for years

1. the material editor now accurately shows the scene
2. the batch render now shows progress indicators in the progress tab

as of yet, I have not been able to crash it with the "abnormal program termination" bug that has plagued me since I got my new machine when rendering from the batch que.

several nice enhancements--like a quick "preview" render button

:)
BT