The following are the main new features a part of this release :
- Java 16 Support
- File system paths now support resolution of '~' as well as system/environment variables using ${..} notation
- Source method declaration lookups through workspace symbol search
- Support the 'resolveCodeAction' capability for improved performance
See https://github.com/eclipse/eclipse.jdt.ls/milestone/90?closed=1 for full details.