OMG, how is there even more in JDK 21?! Scoped values preview, key encapsulation mechanism API, a new JFR command, and various API improvements. Generational...
I’ve been paying attention to the JEPs, but this includes the general API changes that there aren’t jeps for.
And for a summary of everything, I just learned about java almanacs neat apidiff tool that can show all javadoc changes from 20 to 21