The Apache Software Foundation

We are pleased to announce that Apache Traffic Server 2.1.0-unstable is now available.  Apache Traffic Server™ is fast, scalable and extensible HTTP/1.1 compliant caching proxy server. Handing over 400TB a day at Yahoo! both as forward and reverse proxies, Apache Traffic Server is battle hardened.

http://trafficserver.apache.org/

Download from http://www.apache.org/dyn/closer.cgi/trafficserver/

This is an unstable release from the development line so all issues reported will be fixed in the trunk.  That said, 2.1.0-unstable brings a number of features and performance improvements including support for FreeBSD, MacOSX and Solaris, improved cache seek/write efficiency and dramatically reduced miss latency.