IntelliJ IDEA always supports the most recent version of Java. If you want to see the new features that are most interesting to Java developers, and see how IntelliJ IDEA helps us to use these features, these tips are a great place to start.
Convert class to record (tip)
Use inspections to convert classes to Java 16 records
Turn on Preview Features to try new Java features (tip)
The latest versions of Java contain "Preview Features", features that are fully functional but require developer feedback. Try them out in IntelliJ IDEA.