The same question was archived on r/trackers.
Would like to get notified when a compatible tracker is available for testing, it's not even clear if there is an implementation just yet.
All site admins would need to do is increase the torrent hash length in the tracker, if it is a new tracker site. I actually recommended to use bittorrent v2 to the fappaizuri guys when they started it. The response was: Well, it works with v1 as well, soo ¯\(ツ)/¯
I can’t speak to current state; but with any luck we are approaching / entering the post-tracker era. DHT handles the actual “tracking”, and other components are (very slowly) coming out to handle search and reputation.
But what's most interesting to me is the single files hashes.
Each individual file will get it's own hash, reachable from the DHT. It also seems that there will be some kind of standard hashing method allowing to get unique reproducible hashes (no more piece size or parameters). Two persons would always obtain the same hash for the same file even for different torrents. This is all to reduce swarm fragmentation.
So it would be similar to IPFS (except this one broke his promises by introducing several multihash versions…).