I tried 4.4.0.1. on two games so far and it eventually crashes where the game cannot be re-opened.
Not sure why, but I suspect it has something to do with NEI oil new coding. I do not use the oil option, and it still causes all kinds of weird things. This game here is an example. Unfortunately, it appears that ver. 4.3.2.3 is still the most stable one so far.