Plone 2.1
This version of Plone integrates the Archetypes layer
Published originally on September 9, 2005
This version of Plone integrates the Archetypes layer: developed for some time (2 years), the project became sufficiently mature to be used, improvement of the user interface (mode full screen, more metadata, configuration of research, addition of a sitemap), improvement of the performances and much more.
The official site