[tz] Backward compatibility of tzfile?

Paul Eggert eggert at cs.ucla.edu
Wed Sep 21 01:09:50 UTC 2016

Deborah Goldsmith wrote:

> Is the intent that successive versions of the tzfile format will be compatible with older implementations of localtime.c, date.c, etc.? Obviously they wouldn’t be able to take advantage of any new information, but is the idea they’ll still be able to read it?

Yes, that sort of backward-compatibility has been a goal.

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