Remosi’s Rants

I can’t be the only one to have had this thought. All good RSS readers send If-Modified-Since: headers, and good RSS producers send back an “Unmodified” response if it’s not been modified. But why don’t RSS producers send back a dynamically sized list of the items created since the date in the “If-Modified-Since” header (maybe +1). If not if-modified-since is sent you fall back to the last “n” items as normal. You can cap at no more than “m” items being sent. Very simple, very useful.