Today I haven seen the following post on the curl-lib mailing list which
I want to share.
Finally, RFC 2616 is deprecated and HTTP 1.1 is now offically instead
done in the whole range of new RFCs in the subject. This revision work
has taken almost seven years to complete.
In the new rfcs are always a section
Changes from RFC 2616
and in the last one 7235 is it
Changes from RFCs 2616 and 2617