I've been playing with the many betas and pre-releases, and Mojang's software quality is… job NaN as usual. Each version would break something that worked before, add new completely unrelated bugs, as if (and in fact we know this to be the case) they don't have any tests, they don't even have a "feature", they just hack on the source at random whim until they feel like dumping it, and people report bugs and sometimes those get fixed.
Anyway, this "official release" is somewhat stable, but today's new bug is: My chicken farm dies out. I use water flows from the corners of a 5x5 pit to put all the chickens and their egg drops into a hopper in the center, but in this version baby chickens drown in even a thin stream of water, probably due to Mojang "fixing" zombies not sinking & becoming aqua zombies.