Hmm.

There is nothing to be happy with.

Debian have a release cycle that is not appropriate for bitcoin. As my experience suggests me,
bitcoin software were released very often in the past and often introduced changes with
major incompatibilities.

If Debian stable release would include bitcoin after an year or so, 0.3.19 would be too old to connect to the network, wouldn't?

Would it possible to incorporate ./debian directory into the official bitcoin source repository?
Isn't that a better option to support Debian (or to be supported by Debian)?