Projects / Rainbows!


Rainbows! is an HTTP server for sleepy Rack applications. It is based on Unicorn, but designed to handle applications that expect long request/response times and/or slow clients. For Rack applications not heavily bound by slow external network dependencies, consider Unicorn instead as it simpler and easier to debug.

Operating Systems

Recent releases

  •  12 May 2014 07:35

    Release Notes: This release updates documentation to reflect the migration of the mailing list to a new public-inbox instance. This is necessary due to the impending RubyForge shutdown on May 15, 2014.

    •  02 Feb 2014 00:39

      Release Notes: This release fixes EventMachine support. There's nothing relevant for most users who do not use EventMachine.

      •  27 Feb 2013 10:31

        Release Notes: This release adds hijacking support for Rack 1.5.x users. There is also a new -N/--no-default-middleware option, and a few corner-case bugfixes/cleanups.

        •  18 Jan 2013 11:30

          Release Notes: This release fixes two EventMachine bugs.

          •  06 Dec 2012 11:44

            Release Notes: This release adds a bugfix to allow stream(:keep_open) in Sinatra (and possibly other async.callback users) to work properly with EventMachine. There are no changes for non-EventMachine users.


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