Forgive me if I missed something obvious, but on this page http://www.zen-cart.com/forum/showthread.php?t=131115 there are no steps to upgrade 1.3.9.x to 1.3.9h, or patches. It just says upgrade to the latest version.
I have too many changes to core files to just upgrade like this, it would take too long as I would have to reapply the template and all core changes and add-ons to a new install. Therefore I would like to modify my 1.3.9d to apply the changes to get to 1.3.9h, but I cannot find any information about this.
Is there a zip file of changed files, or some instruction somewhere?
Thanks a lot