For me, steam downloaded an update, then the launcher seemed to say that there was a new build with the same version number, or something... I was confused.
Part of the numbers at the bottom of the launcher seemed to be yellow and referenced something new I could get. “Check news” it said...
But steam had already downloaded and I couldn’t find where else to download anything. Game played fine, and there was nothing new in news since the big 3.3.
FWIW the game still did the fun thing where it randomly hangs for 15 seconds or so and then goes back to normal. Did it a couple times in about as many hours playing.