Fork of wp-varnish : http://github.com/pkhamre/wp-varnish
Based on Varsnish plugins by pkhamre, wfelipe, eitch, but heavily forked for extensibility.
WordPress Varnish Purges is a plugin that purges new and edited content, it's intent is to be usable for a multi-site installation, to support all necessary purge orders for wordpress and to be expandable via extensions.
This plugin purges your varnish cache it's intent is do do it for any action taken. This plugin supports what is called extensions that can be added to add special purges for specific wordpress plugins.
This plugins is mainly aimed at multi-sites installations (but can be used on a mono site installation) and requires some knowledge about varnish and vcl files.