[tz] draft of change summary for next tz release

David Patte ₯ dpatte at relativedata.com
Tue Sep 17 22:20:08 UTC 2013

As I said earlier, I also feel the loss of the transition dates from LMT 
are an unwelcome loss to data in the database.

On 2013-09-17 18:10, Stephen Colebourne wrote:
> Thanks you very much for preparing this, I think it was vital on this occasion.
> On 17 September 2013 22:38, Paul Eggert <eggert at cs.ucla.edu> wrote:
>>    Changes affecting time stamps before 1970
>>      Some zones have been turned into links, when they differ from
>>      existing zones only in older data that was likely invented or that
>>      differs only in LMT or transition from LMT.  These changes affect
>>      only time stamps before 1943.  The affected zones are:
>>      Africa/Juba, America/Anguilla, America/Aruba, America/Dominica,
>>      America/Grenada, America/Guadeloupe, America/Marigot,
>>      America/Montserrat, America/St_Barthelemy, America/St_Kitts,
>>      America/St_Lucia, America/St_Thomas, America/St_Vincent,
>>      America/Tortola, and Europe/Vaduz.
> >From my perspective, these are the only changes that concern me. The
> change was IMO unecessary, deleted longstanding information and gained
> little if anything in return. The new values are, from the perspective
> of an end consumer, more confusing/worse/wrong than the originals
> (accepting that all the data is guesswork does not mean that one guess
> should take priority over another when that data has been in existence
> for a long time).
> If others want to save the deleted data in these locations, then they
> need to speak up now. I don't intend on pursuing the matter further
> without indications that others understand the dubious nature of these
> changes.
> Stephen


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