This is an official release for 188.8.131.5254.
You can manually download the build here, if you have any issues you can rollback to the previous official release here.
HM-8698 - PokerStars - Added support for Zoom tournaments
HM-8827 - PokerStars - Added import support for Win the button tournaments
HM-8829 - PartyPoker - Added support for anonymous tables
HM-8831 - FullTilt - Added support for new version of Zoom handhistories
LeakBuster NL - Updated to v184.108.40.206
HM-8830 - Stats - Resolved an issue with duplicate vsSqueeze stat
SngWiz2 - Adjust non-all-in equities