New since 1.11.0:
Nothing
Bugs fixed since 1.11.1:
dns.resolver.Resolver erroneously referred to 'retry_servfail'
instead of 'self.retry_servfail'.
dns.tsigkeyring.to_text() would fail trying to convert the
keyname to text.
Multi-message TSIGs were broken for algorithms other than
HMAC-MD5 because we weren't passing the right digest module to
the HMAC code.
dns.dnssec._find_candidate_keys() tried to extract the key
from the wrong variable name.
$GENERATE tests were not backward compatible with python 2.4.