Compatibility is tested with latest Plone 4.3 and the upcoming Plone 5.0.

Removed 4.2 compatibility

Since 1.1b1 we depend on changes from 1.1b1, which depends on plone.dexterity>=2.2.1 which itself (since 2.2) depends on a AccessControl version not provided by the Plone 4.2 version fixes.

You can still experiment with Plone 4.2 compatibility if you need to, but officially it’s support in is removed. There are a number of other compatibility issues to be solved and the tests will fail anyways. If you really need to, use this as a starting point: = 2.0.10
plone.dexterity = 2.1.3 = 1.1a1
z3c.form = 3.0.5 = 0.7.5

Buildout files

  • buildout.cfg: base installation.
  • dev.cfg: development configuration, including tests.
  • tests.cfg: tests only.
  • sources.cfg: mr.developer source definitions.
  • versions.cfg: version requirements.


Depend on one (or both) of these setuptools dependencies:

' [dexterity]'


' [archetypes]'

The zcml dependency is be loaded automatically by z3c.autoinclude.

Then install via the controlpanel or by depending on the following GenericSetup profile in metadata.xml:

For Archetypes, use this one:

Don’t use the profile, which will be removed in future versions of Please create your own type based on’s Dexterity behaviors (Through the web or via a GenericSetup profile), or install for ready-to-use Dexterity types.

Plone 4.3 installation depends on>=2.5a1. This version has the calendar and event portlet removed, which are now in itself. Also, it allows the calendar portlet to do AJAX calls without KSS via standard jQuery. For Plone < 5.0 you have to fix the version in your buildout like so:

versions = versions

[versions] = 2.5a1

Upgrading from 1.0

The “ploneintegration” setuptools extra, subpackage and GenericSetup profile have been gone. You just need to remove these dependencies from your setup and use the “” profile instead, if you plan to use the Archetypes based ATEvent type.

Use the provided upgrade steps to upgrade Dexterity behaviors: Attribute storage (Migrate fields from annotation storage to attribute storage) and New IRichText behavior (Enable the new IRichText instead of the IEventSummary behavior).

Upgrading from Products.ATContentType to


Please backup before upgrading and check the upgraded contents for validity!

If you want to upgrade Products.ATContentTypes based ATEvents to ones, there is an upgrade step for that: “Upgrades old AT events to” (Metadata version 1 to 2). In order to use it, go to Plone Control Center -> ZMI -> portal_setup -> Upgrades. Select “” profile and click “Show old upgrades”. Select the upgrade step and run it.

You might also need to “clear and rebuild” the catalog after upgrading. You can do so at Plone Control Center -> ZMI -> portal_catalog -> Advanced (this may take a while)

Upgrading to Dexterity

Upgrade steps to migrate Products.ATContentTypes based ATEvents, based ATEvents or Dexterity example types ( to Dexterity Events can be found within This package utilizes’s Dexterity behaviors for it’s Event type.



Don’t forget to set the portal timezone!

After installation, please set your timezone in the @@event-settings controlpanel. Otherwise time calculations are based on UTC and likely wrong for your timezone. Also set the first weekday setting for correct display of the first weekday in calendar views.