What about regions that treat the comma as a decimal separator? I agree with the other commenter that this is no different than using periods in IPv4 addresses.
As a member of such a region, I suspect that those regions a well aware that the prevalent notation throughout programming uses '.' as a decimal separator. IPv4 addresses usually have 4 components and do not have an inherently fractional unit as their first component.
Disagree. '.' is used for version numbers everywhere, even when it's only 2 components (ex: Wordpress versioning, Django etc.) and it seems pretty clear that 1.11 > 1.2 there.
Once the specification is stated clearly as it is right now it is not a problem.
Another symbol could be used (for instance #) but I really don't see a need for that.
A good reason not to change it from a period to a comma, not really relevant to whether to change it from a period to something else.
> I agree with the other commenter that this is no different than using periods in IPv4 addresses.
IP addresses have no useful concept of "before" or "after", whereas these do.