Proof that HTTP 1.0 is compatible with 0.9

Assume:

version 1.0 has the version number at the end of the GET for the browser and inside an HTML tag for the server. Then: Browser Server old old OK. new old new browser can handle 0.9 anyway. new new OK. old new old browser never sends anything but GET string with no version number, so then it must be 0.9. RC