All frontends are websocket aware now, and ``type:websocket`` parameter became optional. It's required if support for ``websocket-path-list`` or ``websocket-transparent`` is required.
Upgrading to new cluster structure
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
The new cluster structure is defined with ``frontend-node-dict``.
The best way to upgrade is to create new frontends on each Compute Node and start serving traffic from them. Then if needed is to upgrade old nodes or simply destroy them by using ``frontend-node-dict``, with eventual copying the important data like logs. As the way how request of the frontend nodes is heavily changed such approach will allow seamless upgrade.
