Coreprotect alternative (paper 1.21.4)

As the title says. Unless there is way of downloading core protect without paying for it via the patreon, (wich seems to be the only way).
I've tried the GitHub but that still the hold version.

Solution

Correct, v23.0 hasn’t been released yet. The version listed in pom.xml will be updated once v23.0 is released. That is, all new commits are still going towards the upcoming v23.0 release.