If you use dh-make with CDBS then you need to know that CDBS is no longer a package type, but is a rules format. This is where it should of been in the first place and for a few versions of dh-make there was this half-hearted attempt to change it over.
Version 0.57 has the right fixes and just got uploaded. I’m not sure how many people actually use CDBS on new packages anymore, but it should work fine now.
Oh, and dh-make is now of Alioth git repository instead of subversion.