the version of libnet-dns-perl in unstable fixes some FTBFS errors in
other packages (#755317), so it's desired to have it in testing, but
it's a 0.81 pre-released version and the 0.80_2 version is causing
problems at least in spamassasssin (#766718).
libnet-dns-perl has undergone some big refactoring in between version
in stable and testing and last few upstream releases are just cleanups
of that refactoring (mainly packages using some Net::DNS internal they
shouldn't be using).
Unfortunatelly upstream missed the freeze-10 days a little bit, thus I
am asking for a permission to upload final 0.81 release and let it
migrate to testing. Thank you for considering this.