tzdb Release 2025b

Changelog (from NEWS)

Briefly:
    New zone for Aysén Region in Chile which moves from -04/-03 to -03.

  Changes to future timestamps

    Chile's Aysén Region moves from -04/-03 to -03 year-round, joining
    Magallanes Region.  The region will not change its clocks on
    2025-04-05 at 24:00, diverging from America/Santiago and creating a
    new zone America/Coyhaique.  (Thanks to Yonathan Dossow.)  Model
    this as a change to standard offset effective 2025-03-20.

  Changes to past timestamps

    Iran switched from +04 to +0330 on 1978-11-10 at 24:00, not at
    year end.  (Thanks to Roozbeh Pournader.)

  Changes to code

    'zic -l TIMEZONE -d . -l /some/other/file/system' no longer
    attempts to create an incorrect symlink, and no longer has a
    read buffer underflow.  (Problem reported by Evgeniy Gorbanev.)