Well, I just spent the last couple of days fretting about how I would need to completely re-implement how something in #godotengine works in order for a skill system I've been working on to operate properly. With a bit of refactoring in my skill system though, I've now realized that I don't need to change anything at all, and therefore don't need to wait for 3.1 to come out before I start. Yay! (wasted a bunch of time though)