Why do we have a kernel with version number - 20X?

[Bruno Wolff III]

On Tue, Jan 22, 2013 at 14:13:23 -0500,
   Przemek Klosowski <przemek.klosowski at nist.gov> wrote:
>On 01/19/2013 05:50 PM, Bruno Wolff III wrote
>
>>>The hundreds series is speific to the fedora version. Currently
>>>f17 is 1xx and f18 is 2xx. The purpose is to keep f18 versions
>>>ahead of f17 versions so that updates will work better.
>..
>>Presumably as new kernels come out the base number will change to
>>reflect the currently supported versions of Fedora. So that for the
>>3.9 kernel, f18  will probably be 1xx and f19 2xx.
>
>
>That's a pretty arcane scheme. Would it work to use 17xx, 18xx and 
>19xx instead?

Probably. Putting the release after the dist tag would also probably 
work.