They don't call this one a "quick update," so that means there's probably like a thousand things that have been changed. You can head over and check out what all been's changed. Make sure you're playing the game the way it's supposed to.
From the article:
Today we’ve got a bunch of game updates, which provide much needed quality of life improvements. I think that these weekly army updates have actually been quite good for the games, so I am considering making these a regular staple where we review a different army every week. In the future we might make a poll about that, so keep your eyes peeled!
Let’s get to it!