[tz] draft of change summary for next tz release PS

[Alois Treindl]

On 9/17/13 11:38 PM, Paul Eggert wrote:

>      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.
>      ... Europe/Vaduz.


I have already pointed out that it is wrong to link Europe/Vaduz with 
Europe/Zurich

Vaduz (Liechtenstein) is a different country, with a different timezone 
history: no DST in 1941 and 1942. It should not be linked with Zurich, 
Switzerland.

I do not understand why the current zone for Vaduz, which is correct, 
should be thrown away and be replaced with a link to an incorrect zone.

This is against the Theory rules, as pre-1970 differences are supposed 
to be only ignored for areas belonging to the same country.

PS:
If it is really true that from now on, you want to ingnore differences 
between countries, if they apply only to pre-1970, when since 1970 the 
two countries agree, you would also have to remove Europe/Paris and link 
it with Europe/Berlin, because since 1970 these two zones have not differed.

The same appleies to MANY central European zones, which all agree since 
1970.

It would be a horrible loss of correct history information in TZ.