[Setup] Upgrading from plone 3.2.1 to Plone 4x

John Schinnerer john at eco-living.net
Sun Jan 26 01:08:46 UTC 2020

I have upgraded one site from 3.x to 4.x successfully. No custom 
products though, just products from the normal sources/repositories.

It has been quite a few years since I did that so I don't remember 
details. I may have some notes somewhere I can send you.

But IIRC, you cannot go direct from 3.2.1 to 4.x.
You need to go to the last ("newest") 3.x version.
Then upgrade to 4.x, and I cannot recall for sure but I don't think you 
can go straight to the newest 4.x version. You have to step your way 
through versions so each upgrade routine does its thing before the next 
one. In some cases there is not much it has to do, and mostly it is 

But with custom products you made for 3.x there may be other 
complications, you may have to upgrade the products as well.


On 1/25/20 1:41 PM, João Lopes wrote:
> Dear Plone community,
> I am not a "permanent" Plone developer but I made a website in 2009 in plone
> 3.2.1 writing three products following the instructions of the Martin Aspeli
> book "Plone Professional Develpment".
> Now, 10 years after I need to upgrade the website to a newer Plone version
> due the security problems (The university web team shutdown the website).
> I bought the newer version of the book, and prepare myself to upgrade the
> products in order to upgrade the plone.
> But until now I had no success...
> Old versions of Python, zopeskel, dependencies that are not fullfilled ....
> One thousand of problems that so far I could not solve.
> Can I upgrade my site/Products  directly from plone 3.2.1 to plone 4.3 ? Or
> do I need to go to 4.0?
> There are a simple way of reproducing today an environment from ten years
> ago?
> Thanks in advance
> Joao
> --
> Sent from: http://plone.293351.n2.nabble.com/Installation-Setup-Upgrades-f293353.html
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John Schinnerer - M.A., Whole Systems Design
- Eco-Living -
Whole Systems Design Services
People - Place - Learning - Integration
john at eco-living.net - 510.982.1334

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