Evergreen 2.1.1 and 2.2-alpha1 were released on November 17, 2011.
Evergreen 2.1.1 represents the first major bug fix release of the 2.1 series. You can view the full changelog here.
Evergreen 2.2-alpha1 is the first cut of the next 2.2 series. Come be among the first to help test new features and functionality. This release includes many new features, including the Template Toolkit OPAC (or Tpac, for short). As always, please report any new bugs to Launchpad.