How to implement IRC722 token?

[KunihiroTakayanagi]

Dear developers,

IRC721 Standard token is DEPRECATED in below document. https://developers.iost.io/docs/en/3-smart-contract/Token721.html

And the document encourages to use "pure javascript NFT standard: IRC722".

Does this mean creating a self-deployed token that is ABI compliant with IRC721? (Similar to the relationship between IRC20 and IRC21)

Or is the IRC721 ABI itself DEPRECATED? And [iostnft.abi](published in the Universal CryptoAssetToken) is the new IRC722 ABI? https://github.com/blockchainpower/UniversalCryptoAssetToken/tree/master/src/iost

I don't understand which one, so can you tell me?

Thank you