Varnish cache 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 panicing.
  • 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.