add support for 1.21.31 or 1.21.40+ again

[knotty bridge]

this will never happen

these versions are gone

too many bugs on that versions

[south forge]

the pvp in those versions was so good though bring it back :[

[blissful hornet]

The pvp was the same

[digital stream]

Besides what Luca said, these versions will soon be discontinued for multiplayer by Mojang themselves, so it's entirely pointless to bring back support for them.