On behalf of Zope developer community I am pleased to announce the release of Zope 4.0b5. This release has some bugfixes and features to ease the migration from Zope 2.13 for TTW applications. Details see http://zope.readthedocs.io/en/latest/changes.html#b5-2018-05-18 To install the new version see the instructions for either zc.buildout: http://zope.readthedocs.io/en/latest/INSTALL-buildout.html or virtualenv/pip: http://zope.readthedocs.io/en/latest/INSTALL-virtualenv.html -- Mit freundlichen Grüßen Michael Howitz