@kwight - Yes, the tutorials are definitely dated. This is especially evident when I include screenshots of WordPress admin panels from version 2.5 and before.

The most popular tutorials (like how to widgetize a WordPress theme, guide to the WordPress Loop, for example) use native WordPress functions, so hopefully there wouldn't be any insecure code there.

This also means the tutorials would work up until the latest version of WordPress (assuming basic functions stay intact, which I doubt would ever not be the case).

I always have an eye on my email account and on Twitter so if somebody does report anything insecure or out of date, I'd be happy to look into that.

With that said, I was thinking about revamping a lot of the more popular tutorials with up-to-date screenshots and easier-to-understand text.

As simple as I've tried to make my tutorials, (even stuff like "how to install a WordPress theme") one of my primary complaints are they're still too complicated, especially for someone who may not understand basic concepts of the web that most of us already know.