Just curious as I see Mark seems to have had issue on some upgrades I thought.
As i upload my files 1 at a time and follow the instructions
there have been files / images missing in the upload list.
My main issue was installing imagemagick as i was missing
a .js file (Missing from the list).
But i done 7.1.5b last night and i didnt have any problems.
Only the wait.gif which was missing from the images folder,
see 7.1.5b Discussion ive listed them there.
I think we have found most of the upgrade issues now,
as i say 5b was easy peesy for me