
Is this different from the OpenJDK that I see, on the command line? Is that what the "launcher update does"? And if so, how would I see what version of internal-Java is currently running? This question, Preferred Version?, seems to indicate there is a bundled version of Java with the installation. The Launcher screen does indicate that there's a "new version of the launcher", but the notes give no indication of what it does or what version it is. After posting this, I found out that 1.16 added in a version of Customizing Worlds, but it's definitely different from 1.12. Basically, I wanted to experiment with the Custom Worlds options, which is in version 1.12 - but was removed from 1.13. Minor update on why I want to do this (and possibly other people might want to).


And if so, how? Or what versions of Java/launcher, do I need?
