Setting something like this up has been an idea of mine for a while. Glad someone's done it.

Being able to get simple plain-text diffs of documents (preferably through git) that you've agreed to or signed should be the expected standard. Not just for privacy policies online, but for any contractual change in our personal and work lives.

Here's Facebook's Privacy Policy from the Open Terms Archive: https://github.com/ambanum/OpenTermsArchive-versions/commits....