draft-ietf-atompub-protocol-05 is now out.
I haven't looked at it yet to see what will have to change in Demokritos. I will, however, delay releasing Demokritos until I've implemented at least as much of 05 as I had 04.
The original post was in the categories: atompub demokritos but I'm still in the process of migrating categories over.