Concise Problem Details for Constrained Application Protocol (CoAP) APIs
RFC 9290

Received changes through RFC Editor sync (created alias RFC 9290, changed title to 'Concise Problem Details for Constrained Application Protocol (CoAP) APIs', changed abstract to 'This document defines a concise "problem detail" as a way to carry machine-readable details of errors in a Representational State Transfer (REST) response to avoid the need to define new error response formats for REST APIs for constrained environments.  The format is inspired by, but intended to be more concise than, the problem details for HTTP APIs defined in RFC 7807.', changed pages to 21, changed standardization level to Proposed Standard, changed state to RFC, added RFC published event at 2022-10-19, changed IESG state to RFC Published)