I am trying to upgrade a legacy system … my client has requested that I upgrade from 188.8.131.52 to 5.7.4 for security issues. The server is running PHP 5.6.40.
I followed the instructions by downloading the legacy zip file for 5.7.4, removing everything but the concrete directory. I uploaded it to the /updates folder, but when I do a ‘check for updates’ from the dashboard, it doesn’t appear.
(Edited to add that I also tried zipping up that folder and uploading that as well. No dice.)
What am I doing wrong? Thanks.