From upstream's release notes:
Major changes since 0.8.2:
- mostly bugfixes and performance improvements
New plugins:
- plugin_stats: write some statistics about currently active calls
- plugin_blacklist: new plugin to block UACs that cause excessive
failures during REGISTER attempts
Upgrade Notes 0.8.2 to 0.8.3:
- Merge the configuration file
registrations of SIP clients on a private IP network, and rewrites the
SIP message bodies to make SIP connections work via a NAT firewall.
Imported from wip/siproxd.