2016-09-12: Hitch 1.4.0 released. Minor fixes since 1.4.0-beta1. Add support for ECC certificates (changelog).
2016-08-26: Hitch 1.4.0-beta1 released. Support for ALPN and NPN. This lets you use Hitch for terminating TLS in front of an HTTP/2 capable backend (changelog).
Hitch is open-source software released under the BSD license. It originated in the abandoned stud project, which still provide much of the architectural base of the proxy. Main platform is Linux but it should work on other unixes with libev as well.
Binary packaging of Hitch is available in many Linux distributions (debian, enterprise linux) and in FreeBSD ports. See the wiki for links.