tangor - 3:49 am on Feb 23, 2012 (gmt 0)

I've gotten many thousands of them already today, most are perfectly valid.

@incrediBill: I'm with OP on this. My HTTP/1.0s have been not only krapola for the last three years (my tracking years) but have become larger in volume in the last few months. This is a broad request which I realize needs to be pared down to one (1) or two (2) "perfectly valid" examples because I'm not seeing it. Most are Asian, Nigerian, Russian and Baltic areas, and some Middle East as far East as India. Might be valid, but none are viable as regards my site(s) because half the hits are for pages that don't exist, never have, and the other half are after images and nothing else.

So, I do query, begging knowledge from those with more experience in these things, What the Heck Difference is there between 1.0 and 1.1? and why should I care?

As far as rewrites and setenvif or setenvifnocase and others... that's covered, just need some advice re: 1.0 and it's current purpose/use to webmasters.