Update check shows nothing new availableUnlocked version here now updating to software version 1.91.617.1 . It's 429 mb and says latest android security update by google.
Got the update yesterday (Aug-22) for my TWM-TW HTC__621. Version is now 1.92.709.1 .
One of the items on the release notes was optimized battery performance for Pokemon Go.
This update is for un locked HTC phones only. It's gonna be a while before the carrier versions get it.
Hmmm, only the June security patch.