A simple update to 1.20.2. Works on 1.20.3 and 1.20.4, but I recommend getting a separately updated version for it to avoid the red incompatibility warning.

This version will definitely not work with anything below 1.20.2.

But wait, there's no Charm for 1.20 yet? There is - https://github.com/svenhjol/Charm#charm-for-minecraft-120x.