The rfc6265bis document - the updated #cookie spec - is now in draft-14: ietf.org/archive/id/draft-ietf…
It has been in the works for almost a decade by now!
Cookies: HTTP State Management Mechanism
This document defines the HTTP Cookie and Set-Cookie header fields. These header fields can be used by HTTP servers to store state (called cookies) at HTTP user agents, letting the servers maintain a stateful session over the mostly stateless HTTP pr…www.ietf.org