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Updated YANG Module Revision Handling

The information below is for an old version of the document.
Document Type
This is an older version of an Internet-Draft whose latest revision state is "Active".
Expired & archived
Authors Robert Wilton , Reshad Rahman , Balázs Lengyel , Joe Clarke , Jason Sterne
Last updated 2022-05-12 (Latest revision 2021-11-08)
Replaces draft-verdt-netmod-yang-module-versioning
RFC stream Internet Engineering Task Force (IETF)
Stream WG state Waiting for WG Chair Go-Ahead
Revised I-D Needed - Issue raised by WG
Document shepherd Lou Berger
IESG IESG state Expired
Consensus boilerplate Yes
Telechat date (None)
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


This document specifies a new YANG module update procedure that can document when non-backwards-compatible changes have occurred during the evolution of a YANG module. It extends the YANG import statement with an earliest revision filter to better represent inter-module dependencies. It provides guidelines for managing the lifecycle of YANG modules and individual schema nodes. It provides a mechanism, via the revision-label YANG extension, to specify a revision identifier for YANG modules and submodules. This document updates RFC 7950, RFC 6020, RFC 8407 and RFC 8525.


Robert Wilton
Reshad Rahman
Balázs Lengyel
Joe Clarke
Jason Sterne

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)