Re: [apps-discuss] Fwd: I-D Action: draft-saintandre-xdash-03.txt

[Mykyta Yevstifeyev <[e-mail]>]

13.08.2011 18:52, Ned Freed wrote:
>> I think your document should be clear whether it affects the "vnd."
>> construction, used, eg., as I remember, in MIME media types and 
>> elsewhere.
>
> The answer to that is "no", by definition. The unregistered (x-/x.) tree
> is 100% disjoint from the vendor, personal, and standard trees.

So this could and should be mentioned in the document.

>
>> With respect to existing IANA policies regarding assignment and
>> registration values beginning in "X-".  I suppose IANA should continue
>> to follow those policies which were set by the corresponding documents,
>> in order not to create the influx of registrations of "X-" values.
>
> Actually, there has been some sentiment that we should actually allow
> and encourage such registrations.

As previously "x-" parameters weren't allowed to be registered, 
interoperability problems may arise when such parameter has several 
real-life usages and only one is registered.  I suspected the document 
not to have a retroactivity.

>
>> However, when the "X-" convention is deprecated, new protocols will not
>> need to set such policy; so no changes for IANA are necessary now.
>
> Given that the media types registration procedures document is currently
> being revised, any changes to x-/x. in that context should be dealt
> with in that update. Putting it in a separate general document would
> be both confusing and inappropriate.

Your I-D which I found and which positions itself as 4288bis 
(http://tools.ietf.org/html/draft-freed-media-type-regs-00) does contain 
provisions regarding non-registered x. media types and prohibition of 
their registration.  The I-D was uploaded on 13 June, and even if such 
restriction is going to disappear, the new version of I-D should point 
to draft-saintandre-xdash to reflect x. being are deprecated; it also 
has to deal with existing-and-unregistered x. media types.

I believe that deprecation should only concern new protocols and have no 
retroaticity; so those registries which don't currently allow x. or x- 
registrations, should continue doing so; those which are only being 
created, should take the discussed doc into account.

Mykyta

>
>                 Ned
>