Name,Title,Date of latest revision,Status in the IETF process,Associated group,Associated AD,Date of latest change draft-ietf-core-links-json,Representing Constrained RESTful Environments (CoRE) Link Format in JSON and CBOR,2018-02-26,Expired,core,Alexey Melnikov,2024-12-18 draft-ietf-core-interfaces,Reusable Interface Definitions for Constrained RESTful Environments,2019-03-11,Expired,core,,2019-09-12 draft-ietf-core-dynlink,Dynamic Resource Linking for Constrained RESTful Environments,2021-07-12,Expired,core,,2022-01-13 draft-ietf-core-cocoa,CoAP Simple Congestion Control/Advanced,2018-02-21,Expired,core,Mirja Kühlewind,2024-12-18 draft-ietf-core-coap-pubsub,A publish-subscribe architecture for the Constrained Application Protocol (CoAP),2026-03-02,I-D Exists,core,,2026-03-02 draft-ietf-core-comi,CoAP Management Interface (CORECONF),2026-03-02,I-D Exists,core,,2026-03-02 draft-ietf-core-rd-dns-sd,CoRE Resource Directory: DNS-SD mapping,2019-07-07,Expired,core,,2020-09-10 draft-bormann-core-responses,CoAP: Non-traditional response forms,2025-10-20,I-D Exists,core,,2025-12-19 draft-ietf-core-oscore-groupcomm,Group Object Security for Constrained RESTful Environments (Group OSCORE),2025-12-23,RFC Ed Queue,core,Mike Bishop,2026-02-09 draft-tiloca-core-oscore-discovery,Discovery of OSCORE Groups with the CoRE Resource Directory,2026-03-02,I-D Exists,none,,2026-03-02 draft-ietf-core-yang-library,Constrained YANG Module Library,2021-01-11,Expired,core,,2025-03-04 draft-ietf-core-coral,The Constrained RESTful Application Language (CoRAL),2024-03-04,Expired,core,,2024-09-05 draft-ietf-core-href,Constrained Resource Identifiers,2025-11-21,RFC Ed Queue,core,Mike Bishop,2025-12-18 draft-ietf-core-fasor,Fast-Slow Retransmission Timeout and Congestion Control Algorithm for CoAP,2023-03-13,Expired,core,,2023-09-14 draft-amsuess-core-coap-over-gatt,CoAP over GATT (Bluetooth Low Energy Generic Attributes),2025-10-20,I-D Exists,core,,2025-12-19 draft-ietf-core-groupcomm-bis,Group Communication for the Constrained Application Protocol (CoAP),2026-02-10,RFC Ed Queue,core,Mike Bishop,2026-02-10 draft-ietf-core-problem-details,Concise Problem Details for Constrained Application Protocol (CoAP) APIs,2022-07-06,Became RFC 9290 (Proposed Standard),core,Francesca Palombini,2024-01-26 draft-ietf-core-observe-multicast-notifications,Observe Notifications as CoAP Multicast Responses,2025-10-20,I-D Exists,core,,2025-10-27 draft-ietf-core-conditional-attributes,Conditional Query Parameters for CoAP Observe,2025-03-16,Expired,core,,2025-09-17 draft-ietf-core-oscore-key-update,Key Update for OSCORE (KUDOS),2026-03-02,I-D Exists,core,,2026-03-02 draft-ietf-core-attacks-on-coap,Attacks on the Constrained Application Protocol (CoAP),2025-06-25,Expired,core,,2025-12-27 draft-ietf-core-transport-indication,CoAP Transport Indication,2025-07-07,Expired,core,,2026-01-09 draft-ietf-core-dns-over-coap,DNS over CoAP (DoC),2025-09-16,RFC Ed Queue,core,Mike Bishop,2026-02-05 draft-ietf-core-oscore-key-limits,Key Usage Limits for OSCORE,2026-01-07,I-D Exists,core,,2026-01-07 draft-ietf-core-coap-pm,Constrained Application Protocol (CoAP) Performance Measurement Option,2025-10-20,I-D Exists,core,,2025-10-27 draft-ietf-core-oscore-capable-proxies,OSCORE-capable Proxies,2026-03-02,I-D Exists,core,,2026-03-02 rfc6690,Constrained RESTful Environments (CoRE) Link Format,,RFC 6690 (Proposed Standard),core,Barry Leiba,2016-11-30 rfc7252,The Constrained Application Protocol (CoAP),,RFC 7252 (Proposed Standard),core,Barry Leiba,2023-01-19 rfc7390,Group Communication for the Constrained Application Protocol (CoAP),,RFC 7390 (Experimental),core,Barry Leiba,2019-02-20 rfc7641,Observing Resources in the Constrained Application Protocol (CoAP),,RFC 7641 (Proposed Standard),core,Barry Leiba,2015-10-14 rfc7959,Block-Wise Transfers in the Constrained Application Protocol (CoAP),,RFC 7959 (Proposed Standard),core,Alexey Melnikov,2023-07-08 rfc8075,Guidelines for Mapping Implementations: HTTP to the Constrained Application Protocol (CoAP),,RFC 8075 (Proposed Standard),core,Alexey Melnikov,2017-03-01 rfc8132,PATCH and FETCH Methods for the Constrained Application Protocol (CoAP),,RFC 8132 (Proposed Standard),core,Alexey Melnikov,2020-09-10 rfc8323,"CoAP (Constrained Application Protocol) over TCP, TLS, and WebSockets",,RFC 8323 (Proposed Standard),core,Alexey Melnikov,2020-09-10 rfc8428,Sensor Measurement Lists (SenML),,RFC 8428 (Proposed Standard),core,Alexey Melnikov,2021-11-03 rfc8516,"""Too Many Requests"" Response Code for the Constrained Application Protocol",,RFC 8516 (Proposed Standard),core,Alexey Melnikov,2020-09-10 rfc8613,Object Security for Constrained RESTful Environments (OSCORE),,RFC 8613 (Proposed Standard),core,Alexey Melnikov,2025-01-07 rfc8710,Multipart Content-Format for the Constrained Application Protocol (CoAP),,RFC 8710 (Proposed Standard),core,Alexey Melnikov,2020-09-10 rfc8768,Constrained Application Protocol (CoAP) Hop-Limit Option,,RFC 8768 (Proposed Standard),core,Alexey Melnikov,2020-03-21 rfc8790,FETCH and PATCH with Sensor Measurement Lists (SenML),,RFC 8790 (Proposed Standard),core,Alexey Melnikov,2020-09-10 rfc8798,Additional Units for Sensor Measurement Lists (SenML),,RFC 8798 (Proposed Standard),core,Alexey Melnikov,2020-09-10 rfc8974,Extended Tokens and Stateless Clients in the Constrained Application Protocol (CoAP),,RFC 8974 (Proposed Standard),core,Barry Leiba,2022-12-04 rfc9039,Uniform Resource Names for Device Identifiers,,RFC 9039 (Proposed Standard),core,Barry Leiba,2021-07-01 rfc9100,Sensor Measurement Lists (SenML) Features and Versions,,RFC 9100 (Proposed Standard),core,Francesca Palombini,2021-08-17 rfc9175,"Constrained Application Protocol (CoAP): Echo, Request-Tag, and Token Processing",,RFC 9175 (Proposed Standard),core,Francesca Palombini,2022-02-24 rfc9176,Constrained RESTful Environments (CoRE) Resource Directory,,RFC 9176 (Proposed Standard),core,Barry Leiba,2022-12-04 rfc9177,Constrained Application Protocol (CoAP) Block-Wise Transfer Options Supporting Robust Transmission,,RFC 9177 (Proposed Standard),core,Francesca Palombini,2022-03-23 rfc9193,Sensor Measurement Lists (SenML) Fields for Indicating Data Value Content-Format,,RFC 9193 (Proposed Standard),core,Francesca Palombini,2022-06-08 rfc9254,Encoding of Data Modeled with YANG in the Concise Binary Object Representation (CBOR),,RFC 9254 (Proposed Standard),core,Francesca Palombini,2022-07-28 rfc9290,Concise Problem Details for Constrained Application Protocol (CoAP) APIs,,RFC 9290 (Proposed Standard),core,Francesca Palombini,2022-10-25 draft-ietf-core-groupcomm-proxy,Proxy Operations in Group Communication for the Constrained Application Protocol (CoAP),2026-03-02,I-D Exists,core,,2026-03-02 draft-gomez-core-coap-space,CoAP in Space,2025-07-02,Replaced by draft-gomez-tiptop-coap,none,,2025-07-02 draft-ietf-core-oscore-id-update,Identifier Update for OSCORE,2026-03-02,I-D Exists,core,,2026-03-02 rfc9423,Constrained RESTful Environments (CoRE) Target Attributes Registry,,RFC 9423 (Informational),core,Robert Wilton,2024-04-16 draft-bormann-cbor-yang-metadata,Representing metadata annotations in YANG-CBOR,2026-02-11,I-D Exists,core,,2026-02-26 rfc9595,YANG Schema Item iDentifier (YANG SID),,RFC 9595 (Proposed Standard),core,Francesca Palombini,2025-03-14 draft-ietf-core-coap-dtls-alpn,ALPN ID Specification for CoAP over DTLS,2025-08-11,RFC Ed Queue,core,Mike Bishop,2026-02-05 draft-ietf-core-corr-clar,Constrained Application Protocol (CoAP): Corrections and Clarifications,2025-12-22,I-D Exists,core,,2025-12-22 rfc9668,Using Ephemeral Diffie-Hellman Over COSE (EDHOC) with the Constrained Application Protocol (CoAP) and Object Security for Constrained RESTful Environments (OSCORE),,RFC 9668 (Proposed Standard),core,Paul Wouters,2024-11-22 draft-ietf-core-yang-sid-pen,YANG-CBOR: Allocating SID ranges for PEN holders,2025-12-30,RFC Ed Queue,core,Mike Bishop,2026-01-23 draft-tiloca-core-oscore-piv-enc,Stand-in Key Identifier and Encrypted Partial IV in the Constrained Application Protocol (CoAP) OSCORE Option,2026-03-02,I-D Exists,none,,2026-03-02 draft-ietf-core-cacheable-oscore,End-to-End Protected and Cacheable Responses for the Constrained Application Protocol (CoAP) using Group Object Security for Constrained RESTful Environments (Group OSCORE),2026-03-02,I-D Exists,core,,2026-03-02 draft-ietf-core-coap-bp,Constrained Application Protocol (CoAP) over Bundle Protocol (BP),2026-02-09,I-D Exists,core,,2026-02-09 draft-ietf-core-uri-path-abbrev,URI-Path abbreviation in CoAP,2026-03-02,I-D Exists,core,,2026-03-03 draft-ietf-core-multicast-notifications-proxy,Using Proxies for Observe Notifications as CoAP Multicast Responses,2025-10-20,I-D Exists,core,,2025-10-27 rfc9876,Updates to the IANA Registration Procedures for Constrained Application Protocol (CoAP) Content-Formats,,RFC 9876 (Proposed Standard),core,Mike Bishop,2025-11-11 draft-ietf-core-responses,CoAP: Non-traditional response forms,2026-01-12,I-D Exists,core,,2026-01-12