The rumored 12F35 build reportedly included the following changes:
● Fixes an issue that may prevent Mail from displaying messages
● Improves AFP file transfer performance over 802.11ac Wi-Fi
● Resolves an issue that may prevent a screen saver from starting automatically
● Improves Xsan reliability
No word on what improvements or changes have been made in this build . Apple has previously indicated that developers should focus on Wi-Fi , Graphics, Wake from Sleep, PDF viewing and Accessibility and Mobile Device Management.
A new Safari Beta was also pushed out today to developers as well.