Hi Reshad,

Yes, a virtual interim might be an expedient way to get folks to read the 
discuss the issues.

In addition, or perhaps as an alternatively, the chairs could request extra WG 
time at IETF 126 and perhaps we dedicate an hour or two to going over these 
issues.

I don't think we need or should delay the adoption poll for 
draft-yn-netmod-yang2-02 (the subject of this thread), but instead this could 
probably happen in parallel.

Kind regards,
Rob


From: Reshad Rahman <[email protected]>
Date: Tuesday, 5 May 2026 at 22:57
To: Lou Berger <[email protected]>; NetMod WG <[email protected]>; Rob Wilton 
(rwilton) <[email protected]>; Kent Watsen <[email protected]>
Cc: NetMod WG Chairs <[email protected]>
Subject: Re: [netmod] Re: WG adoption call: draft-yn-netmod-yang2-02

Hi Rob, Kent,

> E.g., it would be good to understand whether those working on YANG Next agree 
> with what I have proposed in that document as a starting point.  E.g., is 
> there rough agreement with what I have proposed in section 2?

Ack. Do we need an interim for this or can this be done via PR or some other 
means?

Regards,
Reshad.

On Tuesday, May 5, 2026 at 10:50:30 AM EDT, Rob Wilton (rwilton) 
<[email protected]> wrote:


Hi Reshad,

For me, the classification of important/complexity/backward-compatibility is 
interesting, but perhaps not as directly useful as the classification that I 
used, which is "should we do this, and if so when?"

I think that I also looked at some of the earlier issues because they were 
closed because the original classification ruled out any NBC changes, but those 
arguably should be considered again.

Even understanding whether this will be a small or larger change to the YANG 
language is important to understand, and if different people have different 
views without a shared common understanding or agreement of where we are 
heading then I suspect we may end up in a painful mess.

E.g., it would be good to understand whether those working on YANG Next agree 
with what I have proposed in that document as a starting point.  E.g., is there 
rough agreement with what I have proposed in section 2?

I.e., I'm thinking of this as a relatively small update to the language, but it 
is still incorporating approximately a third of the 150 open issues!

Kind regards,
Rob


From: Reshad Rahman <[email protected]>
Date: Tuesday, 5 May 2026 at 15:22
To: Lou Berger <[email protected]>; NetMod WG <[email protected]>; Rob Wilton 
(rwilton) <[email protected]>
Cc: NetMod WG Chairs <[email protected]>
Subject: Re: [netmod] Re: WG adoption call: draft-yn-netmod-yang2-02

Hi Rob,

> I think that we, as a community, need to understand and agree what the goal 
> is of the next version of YANG and which of the 150+ proposed enhancements 
> tracked by github we plan to fix and included in YANG v2.

I agree. The issues have been tagged along multiple axes: importance, 
complexity, backwards-compatibility. So is it just a question of agreeing what 
the minimum bar is? Yes I should take a look at your doc again :-)

Regards,
Reshad.


On Tuesday, May 5, 2026 at 07:28:09 AM EDT, Rob Wilton (rwilton) 
<[email protected]> wrote:


Hi,

Yes, I support working on YANG v2, and this document and the underlying github 
repository to back it are a good approach.

I do have concerns that the scope and goal of YANG v2 is not well defined - I 
think that we, as a community, need to understand and agree what the goal is of 
the next version of YANG and which of the 150+ proposed enhancements tracked by 
github we plan to fix and included in YANG v2.  I don't think that an approach 
that just relies on individual contributors working on the issues they have 
most interest in is the best or right approach.

To that end, I published a doc during the last IETF meeting 
(https://www.ietf.org/archive/id/draft-wilton-netmod-yang-next-agreement-00.html),
 with a goal of trying to further the discussion about both what specific 
issues tracked on the github issue tracker could/should go into the next 
version of YANG and also which changes should not end up in the next revision 
of YANG, and which changes we probably don't want in any version of YANG 
currently being considered.

A comparison could be drawn to XPath.  XPath v1, whilst it has some flaws, is 
still a small language.  The subsequent versions of XPath are all significantly 
larger languages, with presumably a much greater implementation cost.  Care is 
required, I think, that YANG v2 doesn't immediately follow this same path.

Kind regards,
Rob


From: Lou Berger <[email protected]>
Date: Monday, 27 April 2026 at 22:43
To: NetMod WG <[email protected]>
Cc: NetMod WG Chairs <[email protected]>
Subject: [netmod] WG adoption call: draft-yn-netmod-yang2-02

Hello, This email begins a 2-week adoption poll for: 
https://datatracker.ietf.org/doc/draft-yn-netmod-yang2/ Please voice your 
support or technical objections to adoption on the list by the end of the day 
(any time zone) May 11. Thank you, Lou (as Co-chair)



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