Sorry for the issue. It's actually an issue in that older RC that has cropped up in a few places.
If you run "sh decache.sh" before launching the upgrader (i.e. from a bash console) it will fix it. Or you can delete all the files from the themes/*/templates_cached/* directories.
The issue is that the last RC regenerates CSS and JS when the cache is emptied, but some servers use more RAM to do that, and some sites have more files - so many users have had memory issues for the limit we define.
If you run "sh decache.sh" before launching the upgrader (i.e. from a bash console) it will fix it. Or you can delete all the files from the themes/*/templates_cached/* directories.
The issue is that the last RC regenerates CSS and JS when the cache is emptied, but some servers use more RAM to do that, and some sites have more files - so many users have had memory issues for the limit we define.
Thankyou