Opensea royalty enforcement / blocklist - can solution be added to existing contracts?

[lyndo]

This will be a helpful read:

[Updated: Dec 8] Manifold Creator Core v2.0.0🎉

Update: Dec 8 Good News! Opensea has extended the date that contracts need to be compliant with their creator fee enforcement policy to Jan 2, 2023 1/ This means Manifold Contracts deployed between Nov 8 and Dec 1 are now eligible to configure royalties on OpenSea. Update: Dec 2 Manifold contracts created on or after Dec 1 (v2) can now enable Opensea royalties via contract settings in Manifold Studio. Update: Dec 1 For contracts deployed after Dec 1, you will be eligible to opt into the…