I was in the process of upgrading my WordPress blog and the blogs of some friends of mine, and I noticed something odd. Of the 5 blogs that I needed to upgrade, all of the were running WordPress version 2.7.1 but when logging into the control panel, only 2 of them notified me that there was a new version (WordPress 2.8) available.

Even when I went to the Tools > Upgrade page, I was presented with the following message:

You have the latest version of WordPress. You do not need to upgrade
You have the latest version of WordPress. You do not need to upgrade. However, if you want to re-install version 2.7.1, you can do so automatically or download the package and re-install manually:

Re-install Automatically
Download 2.7.1

The thing that is funny is that all of these WordPress blogs are hosted on the same server, so I don’t know what is allowing only 2 of the 5 to realize that there is an update available. Either way, I’m sure that by tomorrow, all will allow the automatic upgrade, but it’s funny that they currently aren’t showing the option.

If anybody has an experience with this and knows why this happens, I’d love to hear the explanation.