If you are looking for a light weight intelliJ alternative, then this is it.
One of the differentiators for netbeans was their swing GUI editor.That was likely 15 years ago!
I loved writing java apps with this IDE. These days are long gone and I'm happily using .Net instead.
This page doesn't give any details about what's changed in this release.
More informative page: https://github.com/apache/netbeans/releases/tag/20
I use Netbeans as an IDE for developing on Raspberry Pi Zero since VS Code doesn't support it.
I wrote my first few Java programs with NetBeans back in the day. I quickly looked for an alternative because I didn't want to use a language-specific editor. But the main thing I didn't like was how you would create a "NetBeans project" which would be useless for people not using NetBeans. Do these types of IDEs still do that kind of thing or do they support "generic" projects now?