Today Adobe released Photoshop Elements 12.1, which PSE 12 users can get by going to the Editor’s Help Menu>Updates.
A reminder to those who’ve disabled the Auto Analyzer by adding a space to the name: Go back and delete the space before running the update to be sure it can run properly. I don’t yet know if the update fixes the undead Auto Analyzer problem, but if it doesn’t, you can put the space back in again after updating.
EDIT In Windows, the update will usually run without doing this, but it’s probably skipping the auto analyzer when updating. While the space doesn’t prevent the rest of PSE from updating, it’s a good practice to put the space back, then turn the Auto Analyzer back off again afterwards.
On a Mac you’re likely to see Error U44M1P7 if you forget to remove the space and try to run the update. Put the Auto Analyzer’s name back to its original form, and the update should run.