11
Java21 brings full pattern matching #roadto21
(inside.java)
For discussing Java, the JVM, languages that run on the JVM, and other related technologies.
I’m envious of people who can use modern Java. We’re still on the #roadto11 from Java 8. It’s good though that newer versions are incremental. The path to upgrades should be simpler.
the hard way is from 8 to 11. After that, it's relatively simple