Says September is the latest system update. Click check updates, says it's up to date, click check updates again, says it's preparing system update and hangs out for a while - then says it's downloading and installing a 781M update.
WTF?
Update: OK finally the update completes an hour later, even the reboot took longer than usual - says it's "updated to December 5, 2025"
This phone running Android 16 for a bit over a month now.
Fun fact: Pixel 7 and Pixel 7 Pro didn't get a November update
Rumor is the Pixel 7a December update rollout was paused due to a severe wifi bug. You might not want to upgrade manually at this time, even if you find images available for download.
(The rumor is somewhat weak, it's apparently everyone regurgitating one seemingly AI chat.. Google needs to state the reason publicly.)