HTC U12+ reportedly updating to Android Pie in Taiwan

About a month ago now, HTC made a commitment to upgrade its more recent flagships to the latest stable version of Android (9.0, or Pie). This was to start with the U11, which is powered by the Snapdragon 835, and extent to the U12+, its 2018 successor. Now, it appears that the OEM has reached this stage in the process. A Twitter user apparently in possession of this phone has posted screenshots of its upgrade changelog.

The update in question is called version 2.45.709.1 of HTC Sense (the OEM's Android skin), and is described as containing the major OS upgrade. It also apparently confers system optimizations on the U12+, while removing the now-defunct Google+ from Sense's custom social content aggregator Blinkfeed.

However, this report fails to explain what happened to another phone, the HTC U11+ (a U11 variant that was released prior to the U12+) in this upgrade timeline. Despite the fact that its immediate predecessor's own Pie-update process has recently been reinstated following a postponement due to booting issues, the U11+ has not been sent the same notifications as the 12.