Let's Just Call it X.4.X

[pimentoLoaf]

And if they enhance it further, add another decimal point and a number:

X.4.X.1
X.4.X.2
etc

Difficult to type but... hey! :p

[pianoman]

what is the point of this thread?

this is a terrible idea. X does not always mean "10" and there is no point mixing numbers with letters in the OS version name.