SimGuruModSquad elaborated what happens to CAS Custom Content after the latest The Sims 4 Update!
With today’s patch, CAS CC should continue to function as it did previously.
However we intentionally do not allow legacy CC to be used on the opposite gender or opposite gendered frame. This is because there are new authoring requirements in order for CAS parts to work in the new system. So CAS CC will need to be updated to work with opposite genders.
Full technical details for community tool makers are available here.
Tip: @Crinrict
