When 16.04 LTS was released, PowerDNS had not yet reached a full 4.0.0 release; a pre-release version was included into xenial with the understanding that at some point an update would be made to a point release. I filed bug 1652392 to suggest that this should happen but of course have not found time myself to prepare packages for testing.
So I suggest rather than backporting this specific fix we should instead focus on updating 16.04 LTS to include an actual released version of PowerDNS. Thanks ** Bug watch added: github.com/PowerDNS/pdns/issues #5546 https://github.com/PowerDNS/pdns/issues/5546 ** Also affects: pdns via https://github.com/PowerDNS/pdns/issues/5546 Importance: Unknown Status: Unknown ** Changed in: pdns (Ubuntu) Status: Fix Released => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1705766 Title: Invalid DNSSEC signatures on empty responses to mixed-case queries To manage notifications about this bug go to: https://bugs.launchpad.net/pdns/+bug/1705766/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs