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Zope 6.1 released
by Jens Vagelpohl 22 Apr '26

22 Apr '26

On behalf of Zope developer community I am pleased to announce the release of Zope 6.1. The only change is a fix for the rarely-used "class-factory" setting and its move from Zope to ZODB. This Zope release ensures there's a released Zope version that is compatible with the latest ZODB release. See https://zope.readthedocs.io/en/latest/migrations/zope6.html for migration information from Zope 5. If you want to stay on Zope 5 check out the recent release of version 5.14.2 at https://pypi.org/project/Zope/5.14.2/. Links to more information: - full change log: https://zope.readthedocs.io/en/latest/changes.html - installation instructions: https://zope.readthedocs.io/en/latest/INSTALL.html - documentation: https://zope.readthedocs.io/ - source code: https://github.com/zopefoundation/Zope Jens Vagelpohl

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Zope 5.14.2 released
by Jens Vagelpohl 07 Mar '26

07 Mar '26

On behalf of Zope developer community I am pleased to announce the release of Zope 5.14.2. This release fixes namespace package-related issues under certain conditions by requiring the latest zc.buildout release 4.2.0. Developers, administrators and package maintainers please note: The Zope 5 release series is not compatible with PEP 420-style namespace packages for at least the Products namespace, and installing it requires zc.buildout<5, which is pre-PEP 420 as well. That means the zc namespace packages must also be pre-PEP 420. Make sure to prepare your sandboxes with these versions: $ bin/pip install -U 'setuptools>=78.1.1,<80' 'zc.buildout>=4.2.0,<5' Links to more information: - full change log: https://zope.readthedocs.io/en/5.x/changes.html - installation instructions: https://zope.readthedocs.io/en/5.x/INSTALL.html - documentation: https://zope.readthedocs.io/ - source code: https://github.com/zopefoundation/Zope Jens Vagelpohl

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From zope5.13 to zope6.0
by Giampiero Benvenuti 07 Mar '26

07 Mar '26

Hello there, I have a zope5.13.0 instance on my local machine with a python3.11.15 It runs without any issue. I installed a zope6.0 instance (with all the necessary products) with python3.14 and I cp Data.fs* from the zope5.13.0 instance. It looks like there are not issues on the new zope6.0 instance. I started with bin/runwsgi -dv etc/zope.ini and there are not errors showing. Can someone tell me if this procedure is OK? Thanks a lot, Giampiero

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Zope 6.0 released
by Jens Vagelpohl 04 Mar '26

04 Mar '26

On behalf of Zope developer community I am pleased to announce the release of Zope 6.0. It does not bring added features compared to the 5.x release series, but switches namespace package declarations from the old "pkg_resources"-style to PEP 420 implicit namespaces. The switchover may be a breaking change under some limited circumstances, thus the new major release version. See https://zope.readthedocs.io/en/latest/migrations/zope6.html for migration information. If you want to stay on Zope 5 check out the recent release of version 5.14.1 at https://pypi.org/project/Zope/5.14.1/. Links to more information: - full change log: https://zope.readthedocs.io/en/latest/changes.html - installation instructions: https://zope.readthedocs.io/en/latest/INSTALL.html - documentation: https://zope.readthedocs.io/ - source code: https://github.com/zopefoundation/Zope Jens Vagelpohl

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Zope 5.14.1 released
by Jens Vagelpohl 03 Mar '26

03 Mar '26

On behalf of Zope developer community I am pleased to announce the release of Zope 5.14.1. This comes hot on the heels of Zope 5.14 and fixes an issue with generating the Zope console scripts. Thank you to Michael Brunnbauer for making me aware of the issue. Developers, administrators and package maintainers please note: The Zope 5 release series is not compatible with PEP 420-style namespace packages for at least the Products namespace, and installing it requires zc.buildout<5, which is pre-PEP 420 as well. That means the zc namespace packages must also be pre-PEP 420. Make sure to prepare your sandboxes with these versions: $ bin/pip install -U 'setuptools>=78.1.1,<80' 'zc.buildout<5' For details of the changes see https://zope.readthedocs.io/en/5.x/changes.html To install the new version see https://zope.readthedocs.io/en/5.x/INSTALL.html Jens Vagelpohl

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Zope 5.14 released
by Jens Vagelpohl 03 Mar '26

03 Mar '26

On behalf of Zope developer community I am pleased to announce the release of Zope 5.14. This is mostly a bugfix release with one small feature addition. It also drops support for Python 3.9, which has reached end of life status. Developers, administrators and package maintainers please note: The Zope 5 release series is not compatible with PEP 420-style namespace packages for at least the Products namespace, and installing it requires zc.buildout<5, which is pre-PEP 420 as well. That means the zc namespace packages must also be pre-PEP 420. Make sure to prepare your sandboxes with these versions: $ bin/pip install -U 'setuptools>=78.1.1,<80' 'zc.buildout<5' For details of the changes see https://zope.readthedocs.io/en/5.x/changes.html To install the new version see https://zope.readthedocs.io/en/5.x/INSTALL.html Jens Vagelpohl

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Zope 5.13 released
by Jens Vagelpohl 13 Mar '25

13 Mar '25

On behalf of Zope developer community I am pleased to announce the release of Zope 5.13. This is mostly a bugfix release with one small feature addition, a new zope.conf configuration option to turn off processing of XML-RPC requests. It also drops support for Python 3.8, which has reached end of life status early October 2024. Developers, administrators and package maintainers please note: Due to compatibility issues between some recent setuptools and zc.buildout versions you should update all development and production virtual environments to use setuptools 75.8.2 and the latest release of zc.buildout, currently 4.1.4. The following pip invocation inside your virtual environment handles that: $ bin/pip install -U 'setuptools==75.8.2' 'zc.buildout>=4.1.4' For details of the changes see https://zope.readthedocs.io/en/latest/changes.html To install the new version see https://zope.readthedocs.io/en/latest/INSTALL.html Jens Vagelpohl

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Zope 5.12 released
by Jens Vagelpohl 17 Jan '25

17 Jan '25

On behalf of Zope developer community I am pleased to announce the release of Zope 5.12. This is mostly a bugfix release with one small feature addition, a History tab for Zope File objects that have text content and are editable in the ZMI. For details of the changes see https://zope.readthedocs.io/en/latest/changes.html To install the new version see https://zope.readthedocs.io/en/latest/INSTALL.html Jens Vagelpohl

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Zope 5.11.1 released with several security fixes
by Jens Vagelpohl 03 Nov '24

03 Nov '24

On behalf of Zope developer community I am pleased to announce the release of Zope 5.11.1 with several security fixes. This bugfix release relies on waitress version 3.0.1. Version 3.0.0 suffers from two exploits, see https://github.com/Pylons/waitress/security/advisories/GHSA-9298-4cf8-g4wj and https://github.com/Pylons/waitress/security/advisories/GHSA-3f84-rpwh-47g6. If you cannot upgrade your installation to Zope 5.11.1 it is sufficient to upgrade waitress to version 3.0.1 as a workaround. AccessControl has been updated to release 7.2. Earlier versions suffer from a security issue where anonymous users could delete all users stored in a standard Zope user folder. Only the standard user folder is affected, most deployments such as those using Plone do not use this standard user folder and are not affected. If you cannot upgrade your installation to Zope 5.11.1 it is sufficient to upgrade AccessControl to version 7.2 as a workaround. For details of the changes see https://zope.readthedocs.io/en/latest/changes.html To install the new version see https://zope.readthedocs.io/en/latest/INSTALL.html Jens Vagelpohl

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Zope 5.11 released
by Jens Vagelpohl 11 Oct '24

11 Oct '24

On behalf of Zope developer community I am pleased to announce the release of Zope 5.11. Hot on the heels of Python 3.13.0 this release adds full support for Python 3.13 and drops support for Python 3.7. Please note that Python 3.8, while still supported by Zope, has reached end-of-life status a few days ago. For details of the changes see https://zope.readthedocs.io/en/latest/changes.html To install the new version see https://zope.readthedocs.io/en/latest/INSTALL.html Jens Vagelpohl

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