Java 16 just released.
Though there are many features bundled in this release not every feature need to be known by day to day java developers.

There are six of them which will improve developer productivity.
Those features are :

1) Records
2) Pattern matching for instanceof
3) Sealed classes and interfaces
4) Packaging tool : jpackage
5) Stream.toList() method
6) Day Period Support for DateTimeFormatter

Here is a detailed explanation of all the features:

https://fullstackdeveloper.guru/2021/03/18/java-16-features-every-java-developer-should-know/