Not sure if there's a legitimate changes list for CC rolling around somewhere but here's what I've noticed:
C-WLen:
-has BE4B
-has BEj.214A
-214A prorate worse
-623B causes ground bounce on airborne opponent
-Ex Command Grab is special cancelable? 63214C 623B works, in any case
-623C causes untechable wallslam and otg relaunches
-BEj.2C startup is faster
H-WLen:
-2B more hitstun
-has BE4B
-has BEj.236A
-Ice farts (trail hitbox of j.214B) causes ground bounce on airborne opponent
-Same 623B/C buffs as C (assumption)
F-WLen
-has BE4B
-j.236A/B/C otg relaunches
-looks more or less the same? I don't play F so idk