> Apple are stuck with it. Are they? They have an enormous level of control over their deployed software. It seems like they could push out the required chang

> Apple are stuck with it. Are they? They have an enormous level of control over their deployed software. It seems like they could push out the required changes and nearly all clients would support it in no time. For the remaining clients it seems consistent with the feature to simply block incoming messages in the wrong format. Now, whether they'd want to implement a feature that essentially advertises that they have a security problem is another thing. (the answer is quite obviously no, regardless of what's best for their users)