The lang package has been updated, so I advise you to delete your language files so that new ones can be initialized (Delete the lang folder). There is no need to delete anything else!
A GUI has been added for users (For those who do not want to use the hardcore mode, in which the database is lost if the key is destroyed)
The keys allow you to initialize a new player base, which will be displayed in the /lbase menu. In the configuration you can set the maximum number of bases that a player can create
You can give keys to your friends and make the base public or private. With public access, everyone can use the key
In the configuration, you can add a restriction on creating a base for one player