November update KB3019269 is now available for Windows 10 technical preview running devices. The support page for this update in not available yet, but it is one of those hotfix updates, supposedly coming with / before Build 9879 for slow ring insiders. The hotfix update should fix 0xAB bluescreen issue faced by fast ring insiders.
Now, we know what the update does,
Calling all #WindowsInsiders! Just posted hotfix for the 0xAB bluescreen that some in Fast ring were hitting. Please go to WU to download!
— Gabriel Aul (@GabeAul) November 24, 2014