Well, it seems that there were few problems with the pre-release of DAViCal I pushed out last week, so 0.9.6 is out now.

The full release notes are on the wiki. The biggest change is that this release now supports free/busy using the method defined in the draft scheduling extensions for CalDAV, so it's possible to schedule meetings with Sunbird/Lightning or iCal, and possibly other clients if they support that.

Now I can concentrate on getting some paid work done for a few weeks before I start on the next stage.

Updated

After release I discovered that due to the changed behaviour of DAViCal, interoperation with Mozilla Sunbird/Lightning 0.8 was no longer working. A new 0.9.6.1 version has been released to resolve this issue.