* `tornado.web.RequestHandler.write_error` replaces ``get_error_html`` as the
preferred way to generate custom error pages (``get_error_html`` is still
supported, but deprecated)
+* Multi-process mode has been improved, and can now restart crashed child
+ processes. A new entry point has been added at
+ `tornado.process.fork_processes`, although
+ `tornado.httpserver.HTTPServer.start` is still supported.
+* To facilitate some advanced multi-process scenarios, ``HTTPServer`` has a
+ new method ``add_sockets``, and socket-opening code is available separately
+ as `tornado.netutil.bind_sockets`.
Bug fixes