I'm currently running v 4.86 but I'm about to upgrade to v 5.21. I had a lot of server problems before Christmas, but I finally got moved to a bigger and more stabile server, so I'm sure everything's gonna be OK, but I'm still a little nervous. So if someone could tell me if I've got everything right before I start the upgrade, I'd appreciate it.
I'll do a back-up of the database and make a copy of the data folder on my computer. Then I will upload all the files, except the config-inc file (should I skip the config-int also?) and the uploads and data folders. Then I will run upgrade.php. But what will I have to do when I run upgrade.php? Will it upgrade from v 4.86 to v 5.21 by itself, or will I need to do something more when I hit this step? I'd appreciate if someone could please tell me what exactly I need to do when I get there.
I have about 10,000 pictures in my gallery now. It's not much compared to many galleries, but for me and my users it's a lot, and I would hate for something to go wrong, so that's why I'd like to be as prepared as I can for this upgrade (and I need to run it, because we are experiencing some bugs).