Hi,
in the process of migration,
I read: "copy /upgrade (...) then run /upgrade/preflight.php"

I think we should read : "copy /themes to the themes direxctory then" "copy /upgrade (...) then run /upgrade/preflight.php"

Why ?
Cause we run on a XOOPS 2.5.11 RCx version, We need to update the very last version of the files in the theme directory otherwise we get lot of error that they are already ok in the final version.

I used the automatic coorection:
"Click the "Yes" checkbox below and then click the Run Scan button to try to automatically fix any issues found."

it works fine in 2 steps !

Then the process for the module is fine but same think, we need to copy /modules directory in the module XOOPS directory

Then I copied others directories the the upgrade finish
Very very good work, dev team !

A least, I think the process is not clear.
- Either we copy the full directories in the root (for xoops_data + xoops_lib, copy in the special secure directory) then launch the whole process
- Either we copy /upgrade in the root directory + /themes in /themes, and /modules in the modules directory then launch the process, preflight, then copy other directories then launch the upgrade process.