binNMUs and version dpkg-dev dependency

[Daniel Leidert <daniel.leidert.spam@gmx.net>]

Hi,

The thread about the binNMU for pure-ftpd brought up a question for me:
Is it still necessary/suggested/recommended to use a versioned
build-dependency dpkg-dev (>= 1.13.19) when using ${binary:Version} or
${source:Version}? Etch, Lenny and Sid all have the necessary version.
So can this build-dependency be dropped in packages using it?

Regards, Daniel