This is an official release for 188.8.131.5270.
You can manually download the build here, if you have any issues you can rollback to the previous stable version here.
HM-8865 - Resolved an issue with fastfold HUD after Windows 10 "Creators" Update
HM-8848 - PartyPoker - Added HUD support on Fastforward tables after client update
HM-8851 - PartyPoker - Dont run HUD in session mode when handhistories are not anonymoous
HM-8844 - Ipoker - Added support for updated handhistory format (Including broken .FR handhistories that did not import correctly)
HM-8837 - Ipoker - Resolve an issue with importing handhistories for certain players (names including word 'action')
HM-8854 - Ipoker - Import support for changed datetime format in handhistories
HM-8861 - 888 and WSOP.com-NJ hands don't import since recent client update (new header lines)
HM-8864 - Microgaming - Prevent import of cash game handhistories starting April 11 2017 following Microgaming decision to stop saving complete handhistory files for all played hands