Hot-Join

Screenshots taking via F2 now takes a screenshot of all splitscreen instances.
options.txt, resource packs, configs, and shaderpacks are now transferred when an instance is created. If Legacy4J is installed then resource assorts would also be transferred.
(Legacy4J) Player usernames are now rendered in the bottom left corner of an instance when splitscreen is active to help distinguish it from other players.
The original instance now correctly resizes if it was closed via Cmd+Q / Alt+F4.
Fixed the GitHub link.
Updated the wiki.
(Legacy4J) Opening up the user selection menu now temporarily sets the active controller to the controller that opened the menu.
Instances are now disconnected if it fails to send its UUID.
Corrected AuthMe to Auth Me in an error message.
The server now uses port 4447 instead of port 4444 for networking.
The player's UUID is now used for the instance's folder name.
Opened instances now use the same Java version the main instance is using.
Added the /hotjoin instances abort <uuid> command to disconnect any clients, which is useful if they are in a limbo state or aren't starting.
The limit for maximum instances has been raised from 2 to 4.
(Legacy4J) Fixed user selection screen opening when it definitely shouldn't.

Compatibility