Zope 2.2 final released

Zope 2.2.0 final has been released - you can download it from Zope.org:

http://www.zope.org/Products/Zope/2.2.0/

Many thanks go to all of those who have worked with the alpha and beta releases and helped work through the more than 110 (!) issues that have been closed since Zope 2.1.6 came out.

The Zope 2.2 release includes:

• The new security policy implementation and object ownership that addresses the server-side trojan issue:
  http://www.zope.org/Members/jim/ZopeSecurity/ServerSideTrojan
  
• The new online help system which provides context-sensitive help for all Zope management screens and includes Zope API documentation
• A built-in Zope tutorial to get new users started with Zope
• Basic internal support for mountable object databases
• A new "history" tab for selected objects that provides access to previous revisions through the web
• Better performance on many systems as a result of setting a more appropriate value for the "check interval" of the Python runtime
• Many, many bugfixes!

For more information on what is new in Zope 2.2, see the CHANGES.txt and HISTORY.txt files for the release:

• http://www.zope.org/Products/Zope/2.2.0/CHANGES.txt
• http://www.zope.org/Products/Zope/2.2.0/HISTORY.txt

Note that there are important changes to the security model in Zope 2.2 that both site maintainers and Zope product developers need to be aware of. Site maintainers should read the document "Upgrading to Zope 2.2.0" for important information on upgrading their Zope sites:

• http://www.zope.org/Products/Zope/2.2.0/upgrading_to_220

Product authors should read the "Product author's guide to Zope 2.2+ security" to learn about the changes in 2.2 that may affect their products:

• http://www.zope.org/Documentation/How-To/ProductAuthorUpdateGuide