I'm pleased to announce the release of ZODB 3.4 beta 1. This corresponds to the ZODB that will ship in Zope 2.8b2. You can download a source tarball or Windows installer from: http://zope.org/Products/ZODB3.4 Note that there are two Windows installers, for Python 2.3 (2.3.5 is recommended) and Python 2.4 (2.4.1 is recommended). ZODB 3.4b1 contains many bugfixes and new features, including: - savepoint/rollback support, a powerful generalization of subtransactions allowing to revert to any savepoint'ed state within a transaction - auto-synchronization with storages after a transaction commit or abort, and at the explict start (transaction.begin()) of a transaction - a way to register callbacks invoked just before a transaction starts to commit -- see the new transaction.beforeCommitHook() - a new release of ZConfig See the news file for details: http://zope.org/Products/ZODB3.4/NEWS.html Note that ZODB 3.4 does not support any version of Zope 2.6 or 2.7. Current Zope 2.8 and Zope 3 development use ZODB 3.4. The ZODB 3.3 line is officially retired (3.3.1 final was the last release in the 3.3 line).