Comment 0 for bug 1107802

From legal advice: When the Terms of Use for purchases change slightly, we can rely on its current statement that "We may occasionally change the terms of this agreement by posting an updated version, and all changes will go into effect at the time we post the updated agreement."

But when the terms change substantially, USC should prompt you to accept them in the same way that it does before your first purchase.

I guess this would require USC and SCA, together, to decide whether the current version of the terms is substantially different from the version you agreed to. For example, USC could send, with each purchase, the version number of the terms you agreed to, or the date you agreed to them. Then SCA could return a flag for whether the terms need to be shown.