Are there any plans to update this mod for Minecraft versions 1.20.1 or 1.20.4?
This mod would be a great combo for Nostalgic Tweaks! (they are currently on 1.20.1 but will migrate to 1.20.4 soon; and they don't appear to update old versions)

These types of questions are not answered until the build is already in beta or about to do its beta test.

So no comment