You're welcome.

But, notice where I said "mostly"? The devs, of course, reserve the right to make changes in some of those files which contain your changes. So sometimes your changes either won't work any more, or instead of just using your changed file -- which may contain outdated code -- you have to merge your changes into the new file instead. But "mostly" the override system makes upgrading a whole lot easier than it would otherwise be.

I expect a sufficient number of changed files in v1.4 that I'm just going to redevelop my sites in that version, reinstalling any mods I need as they are confirmed to work with 1.4, instead of trying the drop in and go type of upgrade.

Rob