[netmod] [Technical Errata Reported] RFC7950 (7021)

RFC Errata System <rfc-editor@rfc-editor.org> Tue, 12 July 2022 15:41 UTC

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Date: Tue, 12 Jul 2022 08:41:35 -0700
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Subject: [netmod] [Technical Errata Reported] RFC7950 (7021)
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The following errata report has been submitted for RFC7950,
"The YANG 1.1 Data Modeling Language".

--------------------------------------
You may review the report below and at:
https://www.rfc-editor.org/errata/eid7021

--------------------------------------
Type: Technical
Reported by: Balazs Lengyel <balazs.lengyel@ericsson.com>

Section: 11

Original Text
-------------
A definition in a published module may be revised in any of the
   following ways:

   o  An "enumeration" type may have new enums added, provided the old
      enums's values do not change.  Note that inserting a new enum
      before an existing enum or reordering existing enums will result
      in new values for the existing enums, unless they have explicit
      values assigned to them.

Corrected Text
--------------
A definition in a published module may be revised in any of the
   following ways:

   o  The "revision-date" substatement of an existing "import" statement 
      may get a changed argument.


   o  An "enumeration" type may have new enums added, provided the old
      enums's values do not change.  Note that inserting a new enum
      before an existing enum or reordering existing enums will result
      in new values for the existing enums, unless they have explicit
      values assigned to them.

Notes
-----
In section 5.1.1 it is stated that a module may be republished with an updated "import" 
statement. This is needed, otherwise a user of the revision-date statement (inside an import) would never be able to migrate to a newer version of the imported module.

However in section 11.  Updating a Module   this change is not listed in the list of allowed updates, thus it is forbidden.

Instructions:
-------------
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--------------------------------------
RFC7950 (draft-ietf-netmod-rfc6020bis-14)
--------------------------------------
Title               : The YANG 1.1 Data Modeling Language
Publication Date    : August 2016
Author(s)           : M. Bjorklund, Ed.
Category            : PROPOSED STANDARD
Source              : Network Modeling
Area                : Operations and Management
Stream              : IETF
Verifying Party     : IESG