I’ve had a few requests recently to upgrade WordPress on various client sites and there’s one thing I have to say – it really is easier than ever. There are occasional file and folder permission issues and when resolved the upgrade process is seamless. I found more information on the expected file permissions for WordPress.
If you are upgrading a site from a version pre 2.7 then it’s recommended to print and read the extended WordPress upgrade instructions where you will also find details on the simpler 2.7+ upgrades processes.
Upgrading this site was a breeze (thankfully) and I hope you experience the same level of ease.