Sun did this too...
They were like Yeah, screw versions numbers, Solaris 10 forever. That lasted around 5 years. Eventually they realized it was way the hell too confusing to be like "Oh, you put a Solaris 10 CD in this Solaris 10-supporting Sun and it didn't work? Yeah, that's because you need Solaris 10 media dated Foovember 20xx or later", you had software that "requires Solaris 10" that may not run on YOUR copy of Solaris 10 because it's not up to date enough too. So (just like Microsoft did years later), they eventually released Solaris 11 and started using version numbers again.