How To Tell What Version Of WordPress You Have Installed
I knew that one of my clients web sites is running an older version of WordPress. When I upgrade WordPress I like to know exactly what version is running so I can use something like WinMerge to compare every single file in the WordPress installation to verify specifically what is going to be upgraded. This is useful if you run into any problems you can attempt to only roll back specific files to see if it resolves the WordPress upgrade issue.