Status of MIME Type Registration?

Hi,

Other than the July 2015 announcement by Ben Harris, that he would submit 

	text/vnd.yaml

as the formal media type, I have not seen any subsequent news on this
matter.

I still don't see YAML represented at all in:
https://www.iana.org/assignments/media-types/media-types.xhtml

Has the effort to register text/vnd.yaml been abandoned?

In the absence of a formal registration, I don't see the latest specs
guiding developers at all by at least recommending a custom MIME type to be
implement consistently in the meantime. The resulting ambiguity results in
operational problems with clients' "Accept" request headers frequently not
being satisfied by servers' "Content-Type" response headers. This is not
inducive for developers to invest into an implementation.

PS: 
I realize there are various unregistered media types being used in the wild
- which of course means none of them can actually be relied upon. Although
at least one of them follows the proper naming convention of "x-" for custom
headers, thus probably making this the strongest alternative until a formal
standard exists:

	application/x-yaml

?



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