Varnish cache，或称Varnish，是一套高效能的反向网站快取服务器（reverse proxy server）。Varnish目前被用在挪威最大的报社Verdens Gang上。经过两个beta版，开发团队今天终于如期发布了Varnish 的3.0.0 的正式版。它被称为是迄今为止最棒的发行版，强烈建议所有用户升级至此版本。下载：http://repo.varnish-cache.org/source/varnish-3.0.0.tar.gz
查看Changes: http://varnish-cache.org/trac/browser/doc/changes.rst

3.0.0 的主要更新如下：
* Module support through VMODs.
* Compression and uncompression support, including stiching together
compressed ESI fragments.
* Preliminary streaming support, both on miss and on pass.
* Much improved documentation.
* Better default values for parameters.
* Varnishncsa now has custom log format support.
* Varnishlog, varnishncsa and varnishhist can now filter out records
that match multiple expressions.