Deprecated:
-* DH_COMPAT 1, 2, 3. Can be removed once all packages are seen to be using
+* DH_COMPAT 1, 2, 3, 4. Can be removed once all packages are seen to be using
a newer version. I won't hold my breath. Now with evil warning messages
though.
* Also, grep the entire archive for all dh_* command lines,