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Editorial Team
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Asked: 2026-06-10T23:21:18+00:00

I have a Plone installation at version 2.5.5. I need to upgrade it to

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I have a Plone installation at version 2.5.5. I need to upgrade it to 3.3.5. I’m not terribly familiar with Plone or Zope or Python.

This is in a windows 2008 R2 environment. I have the install files for both versions and I’m not worried about breaking anything because everything is backed up a dozen times.

The steps I’ve taken so far:
1) backed up the old files
2) tried installing 3.3.5 to the same directory…received several DLL entry point errors at the end of the process.
3) had to restart the computer
4) after restart the version 2.5.5 plone controller was still working but the 3.3.5 controller was not.

Did I do something wrong? The notes at http://www.plone.org/upgrade couldn’t have been more unhelpful for my experience level.

Thanks for any advice!

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1 Answer

  1. Editorial Team

    http://plone.org/documentation/manual/upgrade-guide/

    this is a good starting point, always.

    Basically install Plone 3.3.X somewhere, install the same add-ons (and check compatibility, thus), copy the data.fs over and start plone 3. If it works, run the upgrade steps going in ZMI and following the noticies.

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