This release is huge:
o Optional SQLAlchemy and Genshi or Jinja2 integration for new projects, out of the box
o Support for Jython 2.5 (and support for Google App Engine with appengine-monkey, and even some success on PyPy)
o New extensive documentation, as well as the Pylons book (which is also available online)
o Now uses the awesome WebOb library
o New PylonsHQ website, powered by CouchDB
and a whole slew of new features and fixes. See the official release announcement for more details.
