Short update on activities in Varnish cache development:
- Work is being done on getting access to the request BODY inside Varnish. This feature has been requested for a while, particularly by the security.vcl guys. See daf0e2c.
- The 2013Q1 Varnish Developer Day will be held in København February 4th.
- I had my request approved and got req.request (which was really the HTTP method) renamed to req.method. Hurray. 0e9627d
- Martin is steadily working on a new libvarnishapi, that makes writing varnish tools (top, stat, ncsa..) simpler. Better filtering language, more stable and better performance. Or something like that, the details are still fuzzy. :)
- I’ve been running varnish trunk in “production” on hyse.org for a couple of weeks now. No ill effects in serving data to report. Works fine for my (minor) needs. One small note is that varnishlog fd/request grouping doesn’t work currently so you need “varnishlog -O” to get any useful output at all. The rest of the tools are probably broken as well. :)
- On the stable side of Varnish, we (Varnish Software) have got some experience with 3.0.3 now. It seems pretty solid. Setting a backend administratively sick from varnishadm is useful.
- The Varnish Agent 2.0 was released the other day. It is a RESTful interface in front of varnishadm, and lets you query/set stuff over HTTP. We will use it for our management tool (VAC), but it should be useful for other uses as well. Source and release announcement.
Blog of Lasse Karstensen 
Is there anything like a roadmap for future releases? Do you expect more 3.0.x releases or will the next release be off the trunk?
Hi Marius.
There is no roadmap as far as I know.
The HTTP/2.0 adoption is under way and requires a lot of heavy lifting.
I’d be surprised if we don’t have more bugfix releases before trunk becomes 3.1/4.0.