[tz-announce] 2015f release of tz code and data available

Paul Eggert eggert at cs.ucla.edu
Tue Aug 11 04:37:39 UTC 2015


The 2015f release of the tz code and data is available.  It reflects the 
following changes, which were either circulated on the tz mailing list or are 
relatively minor technical or administrative changes:

   Changes affecting future time stamps

     North Korea switches to +0830 on 2015-08-15.  (Thanks to Steffen Thorsen.)
     The abbreviation remains "KST".  (Thanks to Robert Elz.)

     Uruguay no longer observes DST.  (Thanks to Steffen Thorsen
     and Pablo Camargo.)

   Changes affecting past and future time stamps

     Moldova starts and ends DST at 00:00 UTC, not at 01:00 UTC.
     (Thanks to Roman Tudos.)

   Changes affecting data format and code

     zic's '-y YEARISTYPE' option is no longer documented.  The TYPE
     field of a Rule line should now be '-'; the old values 'even',
     'odd', 'uspres', 'nonpres', 'nonuspres' were already undocumented.
     Although the implementation has not changed, these features do not
     work in the default installation, they are not used in the data,
     and they are now considered obsolescent.

     zic now checks that two rules don't take effect at the same time.
     (Thanks to Jon Skeet and Arthur David Olson.)  Constraints on
     simultaneity are now documented.

     The two characters '%z' in a zone format now stand for the UTC
     offset, e.g., '-07' for seven hours behind UTC and '+0530' for
     five hours and thirty minutes ahead.  This better supports time
     zone abbreviations conforming to POSIX.1-2001 and later.

   Changes affecting installed data files

     Comments for America/Halifax and America/Glace_Bay have been improved.
     (Thanks to Brian Inglis.)

     Data entries have been simplified for Atlantic/Canary, Europe/Simferopol,
     Europe/Sofia, and Europe/Tallinn.  This yields slightly smaller
     installed data files for Europe/Simferopol and Europe/Tallinn.
     It does not affect timestamps.  (Thanks to Howard Hinnant.)

   Changes affecting code

     zdump and zic no longer warn about valid time zone abbreviations
     like '-05'.

     Some Visual Studio 2013 warnings have been suppressed.
     (Thanks to Kees Dekker.)

     'date' no longer sets the time of day and its -a, -d, -n and -t
     options have been removed.  Long obsolescent, the implementation
     of these features had porting problems.  Builders no longer need
     to configure HAVE_ADJTIME, HAVE_SETTIMEOFDAY, or HAVE_UTMPX_H.
     (Thanks to Kees Dekker for pointing out the problem.)

   Changes affecting documentation

     The Theory file mentions naming issues earlier, as these seem to be
     poorly publicized (thanks to Gilmore Davidson for reporting the problem).

     tz-link.htm mentions Time Zone Database Parser (thanks to Howard Hinnant).

     Mention that Herbert Samuel introduced the term "Summer Time".

Here are links to the release files:

   ftp://ftp.iana.org/tz/releases/tzcode2015f.tar.gz
   ftp://ftp.iana.org/tz/releases/tzdata2015f.tar.gz

The files are also available via HTTP as follows:

   http://www.iana.org/time-zones/repository/releases/tzcode2015f.tar.gz
   http://www.iana.org/time-zones/repository/releases/tzdata2015f.tar.gz

As usual, links to the latest release files are here:

   http://www.iana.org/time-zones/repository/tzcode-latest.tar.gz
   http://www.iana.org/time-zones/repository/tzdata-latest.tar.gz

   ftp://ftp.iana.org/tz/tzcode-latest.tar.gz
   ftp://ftp.iana.org/tz/tzdata-latest.tar.gz

Each release file has a GPG signature, which can be retrieved by appending 
".asc" to the above URLs.  Copies of these signatures are appended to this message.

This release corresponds to commit 6230594d225d7b2f40957ad602890a6bbb1e79ed 
dated Mon Aug 10 18:06:56 2015 -0700 and tagged '2015f' in the experimental 
github repository at <https://github.com/eggert/tz>.

Here are the SHA-512 checksums for the release files:

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  tzcode2015f.tar.gz
d86e6c9e4c6d9cd5de30762723d7a90ac697feeb6dd1f04649f6a35e4e1dc638261c32066db4aeafa767ac339ccd100c38dde044ceadd61e95cb3d39c27f977e 
  tzdata2015f.tar.gz

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