Includes new startup scripts.
Summary of changes from 2.1.3 to 2.1.4
* A bug in the binary heap layout caused inflated object counts, this has been fixed.
* Much more comprehensive documentation.
* A DNS director that uses DNS lookups for choosing which backend to route requests to has been added.
* The client director now uses the variable client.identity for choosing which backend to send a given request to.
* String representation of now, making it easier to add Expires headers
* Portability fixes for Solaris.
* Various bug fixes.
Summary of changes from 2.1.2 to 2.1.3
* The scalability of critbit, the default hashing method, has been improved.
* A bug in varnishd would in some cases confuse varnishncsa leading to lost or wrong log lines.
* Some bugs in the handling of Range requests has been fixed. This only matters if you enable Range support.
* Add «log» command to VCL which will log to the Varnish log.
Summary of changes from 2.1.1 to 2.1.2
* When adding Range support in 2.1.1 an error was introduced. Garbage was appended to some objects. This affected some load balancers - but clients seemed not to be affected.
Summary of changes from 2.1.0 to 2.1.1
* Experimental support for the Range header, must be enabled with the http_range_support parameter.
* A bug in workspace rollback prevented ESI from working correctly in all situations. This is now fixed.
* A race condition and a deadlock in the critbit hasher have been fixed.
* HEAD requests are no longer converted to GET requests for pass and pipe.
* Support for completely obliterating objects including all variants («nuke»). See http://varnish-cache.org/changeset/4668 for details
Summary of changes from 2.0.6 to 2.1.0
Varnish 2.1.0 has just been released. It contains lots of changes relative to 2.0.6, the most important ones being:
* Experimental support for persistent cache
* The regular expression engine is now PCRE
* Saint mode, where we can serve a cached object if the backend is down or otherwise faulty.
* A more scalable hashing method called critbit
* Increased scalability, removing a limitation of maximum 64k connections
* obj_workspace is removed, this is now scaled automatically
* Hashing and client IP based directors
Note: The release has some syntaxchanges in VCL, please read the full changelog
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