Well you have to keep in mind Stable is always a few versions/updates behind.
As I mentioned before a member on one of the sites I was a mod on before becoming an admin. The company only installed the forum software and had not updated it for a long time even with me recommending/pressuring them to do so. The member as a result wanting to view a Beta Groups progress was able to use version info to be able to peak into the beta group’s category. While bad enough. What if the private category had contained confidential member info?
Which @Firepup650 has also reinforced this point. Sure members with good scruples like yourself would not use info like this in a negative way. There are many who would use version info to compromise site security.