Re: [Tzdist] WGLC for draft-ietf-tzdist-service-05

[Lester Caine <[e-mail]>]

On 18/01/15 21:53, Daniel Migault wrote:
> """In the case of operating systems, often those changes only get
> propagated to client machines when there is an operating system update,
> which can be infrequent, resulting in inaccurate time zone data being
> present for significant amounts of time."""
> 
> One could also add that relying on OS updates are more risky operations
> than TZ updates, as such, we should not rely on OS upgrade for TZ updates.

While I have indicated my own preference, I probably have not explained
what I'm thinking as a base for this. Currently the data distributed via
the OS process is not reliably identified, and that what IS needed is a
clean and verifiable publisher. Once tz_dist established that base, then
it would be preferable if the OS updates cloned a tz_dist source -
Including the historic updates - and then this base can be updated by
access to that data directly.

All of the key elements are present in draft 05, provided that 'opaque
token' is actually the version supplied by the OS. Then
'list->changedsince' will provide a clean incremental update process via
the matching publisher.

-- 
Lester Caine - G8HFL
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