Dec 19 2020
The point of security is making things harder to people (or bots) with malicious intent. That said, I am not against changing Special:Version. At the very least, it should not be accessible (or some of its critical information) to non-logged in users.
I don't think it would be useless. It would remove it from the source of millions of pages and require from anyone who wants to know the version an extra step and knowledge of the software, rather than simply viewing source.
Apr 24 2020
Feb 10 2019
Nov 18 2016
Right, thanks, but how do I get version 97fda47?