Players able to take items out of GUI when unsupported server version is used

[Toseflo]

I really like your inventory framework, but I noticed something, which is a critical problem for me.

I ran a plugin using IF 0.10.17 on a 1.21.3 server. At first, the chest GUI was able to open without any issues. But then, when I clicked on an item, the click event failed with an “UnsupportedVersionException: The server version provided is not supported”. The click event wasn't cancelled, and I was able to take the item out of the inventory.

Since I plan to build GUIs with custom items, players should never be able to take them out of the GUI, even with unsupported server versions. For me, it would be better if the GUI wouldn't open at all, so that players can't access the items.

So I was wondering, could you add some checks on plugin initialization, which prevents the plugin from loading when an unsupported server version is used? This would give me peace of mind, that players will never be able to gain access to items from the GUI, even when I am a bit slower with updating my plugin.