Geyser older version not showing???

Around a few weeks or a month ago I remember starting a 1.21.11 server with my friends, I then installed Geyser, then my friend got an error about a "outdated geyser version" or something like that, I then went to check on the Geyser mods to see there were no 1.21.11 options like there used to be. The server was on PaperMC, is there anyway to get around this or are there any alternatives?