2.0.6:
- Fix off-by-one error in ESI handling
- Bug fixes related to session lingering
- Backend probes should now work correctly with more servers
- Portability fixes
- Make it possible to specify the per-thread stack size, useful for 32 bit
systems
2.0.5:
- Performance improvements, particularly on Linux.
- Implement support for HTTP continuation lines
- Handle illegal responses from the backend better by serving a 503 page
rather than panic-ing
- Add backtrace to assertion errors. This requires Varnish to be installed
unstripped
- Consume less memory when processing ESI
- Better standards compliance with If-None-Match support and emitting more
headers on 304 responses
- Add a FetchError? log tag which makes it easier to understand why a
backend fetch failed.
pkgsrc changes:
- Proper EGDIR/SYSCONFDIR support.
- Default user, directory, ownership and permissions support.
- Rudimentary fix for gcc vs. sunpro on Solaris, as used by varnish
to compile config files.
Varnish is
* a high-performace HTTP accelerator designed for content-heavy
dynamic web sites.
* designed for maximum performance on modern hardware and modern
operating systems. Varnish takes full advantage of modern virtual
memory systems and of advanced operating system features such as
kqueue, accept filters, sendfile etc. where available.
* open source, published under a two-clause BSD license.
From the website:
Varnish is very, very fast - ten to twenty times faster than
Squid on the same hardware.
http://www.varnish-cache.org/