Is there a way to force or auto upload the images URLs referred in users posts?

I am facing a very large number of old posts in my forums which have 404 errors related to images posted as URLs.

You can shut off allowing embedding to external images. Would that work?

Is it possible to do that in 4.0 or only in 4.1?

But the best solution for my community would be auto upload.

It's a new feature in 4.1.

Please, add auto upload of images also.

Any news about this matter?