Then discover that since last time I installed emacs on a fresh computer, somebody with an insane opinion about indentation "worked on" python-mode. Struggle with it a couple of days, then try to find an old enough emacs package for my latest Ubuntu that python-mode isn't broken.
This has happened twice.
This upgrade cycle magit (my main reason for using emacs in the first place) broke all my muscle memory and added a ton of featurea I don't want or use.
I wish I could just freeze emacs development...without getting left behind when I want to install a new package... oh well...