Besides making clear this works on Minecraft 1.16.3 (with bkc 1.16.3-v1), this version adds a configuration option for inventory management. Currently it stored the 'root' inventory information in the MyWorlds-configured main world rather than the vanilla main world. This caused some problems when people tried disabling the MyWorlds inventory system again.

This version adds an option to store it in the vanilla main world, enabled by default, hopefully preventing this annoyance in the future. If people already had a custom main world configured, then the option is by default turned off, so it should be perfectly safe to update.