[Zope-Annce] [ANN] Zope 2.8.0 alpha 1 released

Andreas Jung lists at andreas-jung.com
Sun Oct 17 10:05:28 EDT 2004

Hi all,

on behalf of Zope Corporation and the Zope community I am pleased to 
the release of Zope 2.8.0a1.  You can download the sources and the Windows
version from


Some new features of Zope 2.8:

   - Zope 3.3 with MVCC (multi version concurrency control) support.
     MVCC solves nearly every problem with ZODB read-conflict errors
     which is very important for high-traffic Zope sites.

   - Extension Classes were rewritten as Python new-style classes making
     all features of Python new-style classes available in Zope
     objects. This includes support for cyclic garbage collection.

For more information on what is new in this release, see the
CHANGES.txt files for the release:


WARNING: the 2.8.0a1 is not thought for production purposes. Use this 
for development and evaluation only. Due to the major changes in Extension
Classes and ZODB there is a risk that some things are broken or do not work 
they should (ZClasses are currently broken). Backup your Data.fs *before*
trying 2.8.0a1.

Please bring all the bugs you found to the Zope bugtracker at


For more information on the available Zope releases, guidance for selecting
the right distribution and installation instructions, please see:


Thanks to everyone having contributed to this release. Special thanks to Jim
Fulton for his work on the migration of Extension Classes and to Tim Peters 
Jeremy Hylton for their work on ZODB 3.3.

Andreas Jung    (andreas at zopyx dot com)

More information about the Zope-Announce mailing list