It's been a while since I've been able to make any progress on the ISC DHCP 4.1 packaging. I had to cannibalise my test infrastructure to deal with hardware failure that would have rendered my MythTV installation out of commission, we bought a condo, did some renovations, and had a baby. I'm still playing catch up.
The other day, I was able to recreate a test environment on my laptop using KVM, instead of Xen on a dedicated machine, and it's 37% more awesome than my old setup, so I'm back in the saddle again.
I've been able to do some basic testing of the 4.1 packages that are in experimental, and they appear to work, and they upgrade cleanly from the 3.1 packages.
There's the small issue of third-party packages that are plonking files in /etc/dhcp3 (it's just /etc/dhcp now). I finished filing bugs for the transition this morning, so I think the next step is to upload to unstable, which I think I'll do on the weekend.