Release Notes: Major bugfixes were made, improving stability and correctness. A couple of logic errors were corrected and some code was refactored. Upgrading is recommended.
Release Notes: This release fixes several major bugs, including stability under load and correct throttling handling. New features include better throttling reporting, improved error handling with SMTP clients, and a new tool "vmeasure" which can be used to build whitelists which model your local scenario. The next steps will attempt to make this more portable to non-BSD systems (e.g. Linux).