It did?
When the 3.5 books came out, my group continued to use our older 3.0 books. Not the core books, but the supplements. If we went through the bother to purchase the new books, why use the old core books?
And there were folks who decided to stick with 3.0 and not buy the new books . . . although eventually most folks moved up "editions".
With 4E, using the entire 4E run at the same time, including "Essentials" was ridiculously easy. The shift from 4.0 to "4.1" was even smaller than the upcoming rules shift.
When the new 5E books come out next year . . . I'll be purchasing the new books and probably using all of the newer rules updates. But I'm keeping all of my existing 5E books, and I will continue to use them. And it will be ridiculously easy.
Some folks just seem to want things to be difficult, when really they aren't.
Next year . . . continue using the 2014 rules if you want. Or pick up the 2024 rules. Or pick up one of the upcoming alternate 5E rulesets. It's all going to be easily compatible.