A Backport of the mods original 1.21 vserion. However, this backport also includes many features from the latest 1.21.11 versions such as diamond and netherite trim revamps. From what I've gathered, 1.20.1 is much more popular to mod than 1.21. So for the future, if this version does better than the original 1.21 version, it would be ideal to cease development of the 1.21 version and focus entirely on 1.20.1 and 1.21.11.