In Chapter 2, we briefly discussed upgrading your existing WordPress version to the latest available version. In this section, we will take a closer look at the upgrade process.
WordPress 2.7 and above include a built-in upgrade.
You can use the built-in upgrade to replace steps 4 to 7 in the following list, but you should still carry out the other steps. Also, the built-in upgrade does not work on all servers.
In the following section, we will explain how to upgrade WordPress from an older version to a newer version gradually. If you find yourself in a situation where you have to upgrade across a large span of version numbers, for example from 2.2 to 2.7, I highly recommend doing it in stages. Do the complete ...