Patch/balance notes are here btw:
過去から現行まで実施されたバランス調整内容を紹介
game.capcom.com
I only had the time to check 3 characters, but it looks like cammy got a slight buff, lucia also got a slight buff to increase her pressure and seth got nerf.
However this is a pretty huge general change though:
1) Made the hurtboxes of the lower half of all jumping attacks invincible to grounded light attacks while the character is descending after the jump
2) Added an upper hurtbox to some characters' Crouching medium punch from 1F before active frames to the end of active frames.
3) The upper half of the hitbox for some characters' Crouching medium punch will no longer hit an airborne opponent.
1. no more anti air jabs
2. no more risk free easy anti-air cMPs like mika's
3. no more anti-airs that clearly weren't meant to be anti-airs like ryu or bison's cMP.