While the OTA software update itself started to roll out yesterday morning, T-Mobile just updated their support documents for software version 1.27.531.8. Originally suspected to help with some of the capacitive button issues HTC One owners had, the official document pertains only to “visual voicemail performance.”
That’s not to say that other bug fixes didn’t sneak in but according to all things official, only visual voicemail was affected by this update. Hopefully, the update did work some magic on those capacitive button concerns and we won’t see another small update roll out in the near future.
Feel free to send word One owners if you notice anything else different after the update.