Extensible Prioritization Scheme for HTTP
RFC 9218

Received changes through RFC Editor sync (created alias RFC 9218, changed abstract to 'This document describes a scheme that allows an HTTP client to communicate its preferences for how the upstream server prioritizes responses to its requests, and also allows a server to hint to a downstream intermediary how its responses should be prioritized when they are forwarded.  This document defines the Priority header field for communicating the initial priority in an HTTP version-independent manner, as well as HTTP/2 and HTTP/3 frames for reprioritizing responses.  These share a common format structure that is designed to provide future extensibility.', changed pages to 21, changed standardization level to Proposed Standard, changed state to RFC, added RFC published event at 2022-06-06, changed IESG state to RFC Published)