Fatal errors with Net-DNS-0.73

I installed the new version of Net::DNS last night (version 0.73) and
that caused qpsmtpd to fail with a fatal error.  Here's what I see in
the logs:

2013-11-30 10:04:04 ***  FATAL PROGRAM ERROR!!        Unknown method 'default'
2013-11-30 10:04:04 ***  which the program has attempted to call for the object:
2013-11-30 10:04:04 ***
2013-11-30 10:04:04 ***  ;; EDNS version 0
2013-11-30 10:04:04 ;;        flags:  0000
2013-11-30 10:04:04 ;;        rcode:  NOERROR
2013-11-30 10:04:04 ;;        size:   512
2013-11-30 10:04:04 ;;        option: 
2013-11-30 10:04:04 
2013-11-30 10:04:04 ***
2013-11-30 10:04:04 ***  This object does not have a method 'default'.  THIS IS A BUG
2013-11-30 10:04:04 ***  IN THE CALLING SOFTWARE, which incorrectly assumes that the
2013-11-30 10:04:04 ***  object would be of a particular type.  The type of an object
2013-11-30 10:04:04 ***  should be checked before calling any of its methods.
2013-11-30 10:04:04  at /home/waltman/perl5/perlbrew/perls/perl-5.18.1/lib/site_perl/5.18.1/i686-linux-thread-multi/Net/DNS/Packet.pm line 183.
2013-11-30 10:04:04   Net::DNS::Packet::data(Net::DNS::Packet=HASH(0x9dd8280)) called at /home/waltman/perl5/perlbrew/perls/perl-5.18.1/lib/site_perl/5.18.1/i686-linux-thread-multi/Net/DNS/Resolver/Base.pm line 500
2013-11-30 10:04:04   Net::DNS::Resolver::Base::send(Net::DNS::Resolver=HASH(0x928b5a0), "66.175.208.152") called at /home/waltman/perl5/perlbrew/perls/perl-5.18.1/lib/site_perl/5.18.1/i686-linux-thread-multi/Net/DNS/Resolver/Base.pm line 490
2013-11-30 10:04:04   Net::DNS::Resolver::Base::query(Net::DNS::Resolver=HASH(0x928b5a0), "66.175.208.152") called at lib/Qpsmtpd/TcpServer.pm line 160
2013-11-30 10:04:04   Qpsmtpd::TcpServer::tcpenv("192.168.1.57", "66.175.208.152") called at ./qpsmtpd-forkserver line 301

I'm still running qpsmtpd 0.84, so it could very well be something
that has already been fixed. Is anyone else seeing this?

I've downgraded to Net-DNS-0.72 for now and that seems to have fixed
my problem.