On behalf of the Zope 3 development team I'm proud to announce the final Zope 3.3.0 release. There were no changes since the 3.3.0 release candidate.

Zope 3 is the next major Zope release and has been written from scratch based on the latest software design patterns and the experiences of Zope 2.

Cleanup of the Zope 3 packages has continued to ensure a flexible and scalable platform. We continued the work on making the transition from Zope 2 to Zope 3 by making Zope 2.10 use even more of the Zope 3 packages. But the transition is far from complete yet. You can't run Zope 2 applications in Zope 3.

Downloads

http://www.zope.org/Products/Zope3

Installation instructions for both Windows and Un*x/Linux are now available in the top level README.txt file of the distribution. The binary installer is recommended for Windows.

Zope 3.3 requires Python 2.4.1 to run, Python 2.4.3 is recommended. It does NOT work with Python 2.5 yet. You must also have zlib installed on your system.

Most Important Changes Since Zope 3.2

• Provided a new component registry API that allows multiple component registries to be combined more flexibly than before. See 'zope.component.interfaces.IComponentRegistry' for more information.

• Greatly simplified local-component registration. See 'zope.component.interfaces.IComponentRegistry' for more information.

• Moved many packages out of zope.app to make them easier to use outside of Zope.

• Change the session credentials plugin to make it configurable in which fields it looks for the credentials.

• Added a new API for collating text. You can now adapt a locale to 'zope.i18n.interfaces.ILocales.ICollator'. You can then use that to sort strings, such as menu entries, in a locale-specific fashion.

• A new 'zope.annotation.factory' helper function that makes it easier to create annotations. Also added a README in 'zope.annotation' which explains how to use it.

• Added a more complete set of widgets for fields that use iterable sources. These widgets now mirror the set provided by vocabulary-based fields.

• Added a cleaner and more robust API to testbrowser for setting file-upload data.

• Deprecated several ZCML directives:

  • factory

  • vocabulary

  • content (as an alias to the class directive)

  • modulealias

  • renderer:renderer

• The 'browser:layer' directive and the 'ILayer' interface has been deprecated. Registering layers has become obsolete, layers should be created as interfaces extending 'IBrowserRequest'.

• The 'browser:skin' directive has been deprecated. Skins should be created as interfaces extending 'IBrowserRequest' and can be registered using a simple 'utility' directive.

• The 'ISkin' interface has been renamed to 'IBrowserSkinType'.

For a complete list of changes see the 'CHANGES.txt' file.

Resources

• Zope 3 Development Web Site: http://dev.zope.org/Zope3

• Zope 3 Dev Mailing List: http://mail.zope.org/mailman/listinfo/zope3-dev

• Zope 3 Users Mailing List: http://mail.zope.org/mailman/listinfo/zope3-users

• IRC Channel: #zope3-dev at irc.freenode.net

Acknowledgments

Thanks goes to everyone who contributed.