0.172050 -- Mon Jul 24 08:39:36 CDT 2017
  * Support IPv6 (use Net::IP instead of Net::Netmask and Regexp::Common)
  * Support IPv4 addresses mapped to IPv6 ("::ffff:10.0.0.1")

0.103060 -- Mon Nov 01 19:16:50 CDT 2010
  * Initial Release