This update adds support for 1.21.5 as well as these features:
An "autoPrivate" setting which you can enable if you want armor stands to be set to private automatically when they are first accessed via the plugin.
The messages in the messages.yml file are now in MiniMessage format. The plugin should be able to update the messages automatically, but you should make sure that they were converted correctly, especially if you modified them at some point.
The item which is given to you with the "Give Item" feature is now customizable: you can change the name and lore in the config.