NetBeans 8.1 is available for download [1].

It offers some improvements for the Java language like enhanced auto complete, refactoring, and a simple setup for the profiler. Other enhancements affect C/C++ and PHP programming.

The biggest improvement of this version is the topped support for HTML5 and JavaScript. Beside client side frameworks like KnockoutJS or AngularJS, NetBeans now offers built-in support for server side JavaScript with Node,js.

Support for testing is enhanced too. Not only the well known support of unit tests for Java and other languages, but Selenium and Arquillian, too.

[1] netbeans.org