o Validation routine fixes
o Ruby 1.9 fixes
o Recursor fixes
o IPv4 Regex fixes
o Fixes for A/PTR lookups with IP-like domain name
o TXT and SSHFP processing fixes
o Default retry parameters in Resolver more sensible
* TXT record presentation format parsing fixes.
* NAPTR record presentation format parsing fixes.
* SEP flag no longer required (for use with Combined Signing Key).
* Validation routines improved.
* Recursor now handles hints and nameservers better.
* Various bug fixes.
* Fixes for CERT and TSIG, DNAME and RRSet.
* Fixes for RP records.
* Some handling of priming responses with no additional section.
* Validation disabled for the DNS class
* DNSKEY#key= raises ArgumentError if bad key used at creation.
* Arrays of DNSKEYs allowed for verify_rrset().
* dnssec-bis-updates recommendation for NSEC and RRSIG.
* ZoneReader handles absolute binary names properly.
* Test fixes for more platforms.
It provides a complete DNS client implementation, including full DNSSEC support.
Dnsruby is currently used in projects such as OpenDNSSEC and ISC's DLV service.