- Removed support for legacy Rails 2.x applications (please use v1.x)
- Removed mailer proxy, return Mail::Message object
- Reorganize and modernize gem structure, add bundler and move to RSpec 2.x
- Queue target (::Resque) can now be overridden for testing (Joshua Clayton)
- Respect ActionMailer::Base.perform_deliveries
- Added support for Rails 3.x (Marcin Kulik)