It's been brought to my attention that Mojang has upgraded Minecraft to Java 16 in its latest snapshot this morning. Due to this, it's now my plan that when 1.17 is out, UltraColor's code would be upgraded to Java 16. This means not only you may have to update to Java 16 to continue using UltraColor, but you would also have to update to that Java version if you plan to update to 1.17 when it officially releases.

Fortunately, UltraColor already secretly supports Java 16, thanks to the NashornPlus plugin and library it uses. Just make sure you're using at least version 1.2.2 of UltraColor and get the NashornPlus plugin installed from here and you should be able to use UltraColor on Java 16!

Hope all is well!

- UltimateGamer200