I know that Minecraft 1.20 is out and the library is not updated

I'm doing something more important: fractureiser malware detection
As Minecraft 1.20 is released a virus: fractureiser is spreading in Minecraft mods.

I'm delaying the update of the library because

1. Slow down modded Minecraft update, slow down the virus
2. Write a jar malware detection program first allowing users to update safely.

If I can follow my roadmap, the library will be updated next week.

But there are already tools for detecting fractureiser

Yes, there are, I'm making a more generic malware detection for jars, allowing it to block more types of malware embedded in mods.