Gosh, after a reboot yesterday my RET key was bound to mark-sexp and I had no idea where that came from. In my init.el there was zero binding for that and it happened even in Fundamental mode.
Ultimately, after I commented out sly it is now back to normal. Sly was updated a week ago and for some reason the update landed on my machine.
So if you experience the same, let me know.
#Emacs #Sly