My shop was setup in Februari last year (2018) with a pre-version of Frozen.
We could not wait because my provider was moving from PHP 5.3 fast.
I have downloaded Frozen just now, and I am investigating the possibility to lift the site to Frozen.
My thoughts were to start camparing the directory structure with the files it holds.
Then, as a second step, comparing each file content.
Is this a good plan? Which tools would I need for that? (I am running Windows - not familiar with Unix/Linux)
Thanks, Rene