Release Notes: Cool.io is now supported. There is a new "keepalive_requests" configuration directive to limit the number of requests a single connection may make. There are also several bugfixes for odd corner-cases.
Release Notes: This release fixes EventMachine support. There's nothing relevant for most users who do not use EventMachine.
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.
Release Notes: This release fixes two EventMachine bugs.
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.
Release Notes: This release adds one bugfix for users of Fiber-based concurrency options.