Just as the title states.
I'm working on an upgrade today, going from 7.0.8 to current at 7.1.5
The upgrade went well with one error, it was related to this topic.
http://www.boonex.com/forums/topic/upgrade-from-7-9-to-7-1-problem-help-please.htm
After correcting the database, and starting the Dolphin-Patch-v.7.1.0-Cumulative, again, all the updates went fine.
Clearing the caches each time then proceeding with the next update... I didn't see the need to check each version updated in the modules list.
The problems are strange to say the least and I need some suggestions.
A lot of the language files are missing; that is related to the modules still being at version "1.0.9" which is the last ones for 7.0.9.
Looking at the installed modules, they all showed versions 1.0.9 except for the ones I had to remove like the events module was 1.0.9, now 1.1.5; I could only get the modules to show and function in 7.1 by un installing them and re installing.
Example, the videos module would show the old version on the site side as well in the admin page.
I'm almost sure there in not much to do except redo the modules or start the update again from a backup.
Open for all suggestions.