After my last requests for testing of the latest 1.9.x code base, I have received a couple of bug reports, which were fixed in recent weeks. Since I have received no reports the past two weeks I decided to name the new release as "2.0rc1" to raise awareness of the new codebase.
I'm planning to create the new branch for 2.1.x, I have some exciting features in my mind, which I did not want to start before the release of 2.0.0. The old stable series 1.6.x is still supported, but expect less development time to be dedicated in maintaining that release.
Build queues for various architectures are not yet up, so only a Debian sarge binary is available for those with binary maintenance contracts.