I am not very familiar with the codebase of aioice or ICE in general, but I didn't see a mention of the new RFC anywhere and thought that it's something that needs to be tracked.
AFAICT the main change is that "aggressive" nomination is deprecated, and only "regular" nomination should be used. This would mean reworking some of aioice's code. A PR is most welcome!
According to the readme, aioice is based on RFC 5245. There is now RFC 8445 that obsoletes RFC 5245: https://datatracker.ietf.org/doc/html/rfc8445#section-21
I am not very familiar with the codebase of aioice or ICE in general, but I didn't see a mention of the new RFC anywhere and thought that it's something that needs to be tracked.