There is a last updated date but I don't think this is enough, we need version numbers and a history of the changes at least in case anyone questions this.
Thanks for your helpful feedback. The good news is that we are already working on including this feature, so it will be available soon, along with other GDPR-compliant software and services.
Our Users will be informed of this with a newsletter before the new release goes live this month.
I hope this helps.
Matt Lovett commented
Thanks for your reply. Glad to hear this its coming :)