[tz] Proposal: validation text file with releases

[Tim Parenti]

On 15 July 2015 at 08:45, Steffen Nurpmeso <sdaoden at yandex.com> wrote:

> What would be an issue to me is instead that TZDIST doesn't offer
> a binary representation but only (iCalendar,) JSON and XML, which
> require parser libraries, whereas with CBOR the IETF standardizes
> a wonderful, extensible and otherwise future-proof binary format
> that also has been designed with easy JSON mapping in my mind.
>

Not that this should become a tzdist discussion, but it is my understanding
that tzdist has left the distribution of compiled binaries for zones to
future work.  In particular, this would require writing up a spec
describing the binaries compiled by zic.  Certainly not insurmountable, but
also not a priority at this time.

http://www.ietf.org/mail-archive/web/tzdist/current/msg01207.html
http://www.ietf.org/mail-archive/web/tzdist/current/msg01218.html

§4.1.2 of the latest draft (draft-ietf-tzdist-service-09) says
<https://tools.ietf.org/html/draft-ietf-tzdist-service-09#section-4.1.2>
that "Clients use the HTTP Accept header field (see Section 5.3.2 of
[RFC7231]) to indicate their preference for the returned data format.
Servers indicate the available formats that they support via the
'capabilities' action response (Section 5.1)."  So, as I understand it,
there's definitely room for tzdist implementations to support this even
without the file format being formalized.

--
Tim Parenti
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