Custom Properties: Behaviour Changed?

In the docs, it says that Custom Properties are not visible after saving and reloading, but in 2.66 they are.

Is this a recent behaviour change or is something strange going on on my desktop?

was written in 2010.

custom properties are saved to the .blend file.

better use the up-to-date API docs, everything else may be outdated
http://www.blender.org/documentation/250PythonDoc/

Thanks for the link, sir. I was sure the page I was reading said 2.6 at the top, but perhaps it’s one of those pages that’s been copied over but not updated. A warning would not be out of line on pages like that.

The link you sent will now be my go-to.

EDIT: Yup, it did. It was this page.