I thought I knew how to do this.. but it got confusing.

When upgrading to 7.5.4.1 I want to "manually update" my language files to include the new strings as shown in the UPGRADE process ---

"showmembers.php:$ubbt_lang['USER_LIST_TITLE'] = "List of Users"; admin/generic.php:$ubbt_lang['DUP_PATH'] = "Attachments Storage Directory and User Avatar Storage directory cannot be the same.";"

But where/how do I add these? There are LOTS Of language files.

Nevermind... I finally figured it out... Wow... that was not really obvious.

Adding language entries will be much easier in 8.0

Glad to hear this. I just upgraded, something I do once or twice a year, and I never can remember exactly what to do with the language update choice.