[Cellar] Re: Agenda items for our upcoming CELLAR meeting

[Steve Lhomme <[e-mail]>]

Here is the proposed new EBML document to added the new attribute we 
need to distinguish between RFC9559 elements and the new ones in the 
EBML Schema (which is the base of all generated specification(s) and code).
https://github.com/ietf-wg-cellar/ebml-specification/pull/433

We may use a "revision" attribute instead. In this case the new Matroska 
(v5) would be called "v4 revision 1".

We can also add both attributes as they would serve different purposes.

You can downloaded the generated XML(s) for that PR at 
https://github.com/ietf-wg-cellar/ebml-specification/actions/runs/24955659981/artifacts/6647116648

On 4/26/2026 11:30 AM, Steve Lhomme wrote:
> I forgot to mention, to distinguish new v4 elements, I added an "added" 
> attribute in the EBML Schema file. This is a number that corresponds to 
> a date that can easily be compared in XSLT (not an actual date).
> 
> That might require a new document to add this attribute to the official 
> EBML Schema file/description. So we may also need a new "draft-ebml- 
> added" document to publish.
> 
> On 4/26/2026 11:27 AM, Steve Lhomme wrote:
>> Hi Spencer,
>>
>> We can also discuss the renaming of the v5 document so we can publish 
>> the first draft.
>>
>> I made a Pull Request https://github.com/ietf-wg-cellar/matroska- 
>> specification/pull/1094
>> The working draft would be called draft-ietf-cellar-matroskanext-00.
>>
>> The title of the document would be "Matroska Media Container v4 
>> Additions".
>>
>> Best regards,
>> Steve
>>
>> On 4/24/2026 7:21 PM, Spencer Dawkins at IETF wrote:
>>> Dear Cellar,
>>>
>>> Robert and I have worked with Charles Eckel, our new Area Director, 
>>> to nudge draft-ietf-cellar-tags-24 forward to the RFC Editor as 
>>> approved, and draft-ietf-cellar-codec-18 forward for IETF Last Call 
>>> and IESG Evaluation.
>>>
>>> Charles plans to join our meeting, and can provide any last-minute 
>>> updates there.
>>>
>>> Thank you, authors, for your work in revising these specifications 
>>> during the approval process.
>>>
>>> So, now that we are moving beyond these two specifications, what 
>>> agenda items do we need to discuss at our next meeting (this coming 
>>> Tuesday)?
>>>
>>> As a reminder, our minutes from our February meeting are at https:// 
>>> datatracker.ietf.org/doc/minutes-interim-2026-cellar-02-202602242000/ 
>>> <https://datatracker.ietf.org/doc/minutes-interim-2026- 
>>> cellar-02-202602242000/>.
>>>
>>> I look forward to seeing everyone soon!
>>>
>>> Best,
>>>
>>> Spencer
>>>
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>>
>