This new release has improved support for websockets. You can now connect to a websocket via a UNIX socket and websocket connections can now be made via the reverse proxy.
The error messages, directory indexes and default website now all have a responsive design.
The Hiawatha Windows packages has also been improved. The files and directories have been restructured and you can now run Hiawatha from any location you want. No more compulsory installation in C:\Program Files.