Pretty much any change (short of a crash fix) will qualify as breaking someone's workflow -- ie "it's different than what I'm used to"
It's been said many times over in this thread; nobody's forcing you to update anything. Your three-year-old Fedora/OSX/Windows/DOS/whatever installation works as well (and identically) today as the day it was released. Heck, go with something like RHEL and it'll be continually supported for a decade.
But don't complain about it lacking $randomfeature, because in the real world nothing is independent.