Good morning,
in the end I performed a different procedure that I think could be useful to others too.
I cloned the VM with 4.1.1, pointing it directly by modifying the /etc/hosts file of my PC. Then I updated version after version by going to the docker registry to get the individual versions and applying all the changes described in the release notes. The path I followed is:
4.2->4.3->5.0->5.1->5.2->6.0->6.0.1->6.1->6.2->6.3->7->7.0.1
For each update I performed a snapshot just in case…
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