We're about to get #DungeonsAndDragons 5.5 and people are freaking out.
D&D #5thEdition has survived longer than most full editions, and we're getting a half edition from these new rulebooks.
It's a testament to D&D's design, or at least its popularity. However, I find it amusing that a bunch of people are nervous about this.
Every edition since #AdvancedDungeonsAndDragons(arguably, but definitely since 2nd edition) has had half and full editions. They have, 100% of the time, made the game better.
So, relax.