But isn't the minor version doing the job forming a first letter to the release.
21.0 was it Allston or something
21.1 braintree
21.2 cambridge
21.3 dorchester
21.4 everett
So an F-something name would be 21.5
A+minor version give first letter of release name.
Helpfiles only have version numbers too.
But since big announcements are made with the names - this suggestions is valid, I think, especially in CCC.
And alphabet should last two years.