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

March 21, 2015

      The 2015b 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

     Mongolia will start observing DST again this year, from the last
     Saturday in March at 02:00 to the last Saturday in September at 00:00.
     (Thanks to Ganbold Tsagaankhuu.)

     Palestine will start DST on March 28, not March 27.  Also,
     correct the fall 2014 transition from September 26 to October 24.
     Adjust future predictions accordingly.  (Thanks to Steffen Thorsen.)

   Changes affecting past time stamps

     The 1982 zone shift in Pacific/Easter has been corrected, fixing a 2015a
     regression.  (Thanks to Stuart Bishop for reporting the problem.)

     Some more zones have been turned into links, when they differed
     from existing zones only for older time stamps.  As usual,
     these changes affect UTC offsets in pre-1970 time stamps only.
     Their old contents have been moved to the 'backzone' file.
     The affected zones are: America/Antigua, America/Cayman,
     Pacific/Midway, and Pacific/Saipan.

   Changes affecting time zone abbreviations

     Correct the 1992-2010 DST abbreviation in Volgograd from "MSK" to "MSD".
     (Thanks to Hank W.)

   Changes affecting code

     Fix integer overflow bug in reference 'mktime' implementation.
     (Problem reported by Jörg Richter.)

     Allow -Dtime_tz=time_t compilations, and allow -Dtime_tz=... libraries
     to be used in the same executable as standard-library time_t functions.
     (Problems reported by Bradley White.)

   Changes affecting commentary

     Cite the recent Mexican decree changing Quintana Roo's time zone.
     (Thanks to Carlos Raúl Perasso.)

     Likewise for the recent Chilean decree.  (Thanks to Eduardo Romero Urra.)

     Update info about Mars time.

Here are links to the release files:

   ftp://ftp.iana.org/tz/releases/tzcode2015b.tar.gz
   ftp://ftp.iana.org/tz/releases/tzdata2015b.tar.gz

The files are also available via HTTP as follows:

   http://www.iana.org/time-zones/repository/releases/tzcode2015b.tar.gz
   http://www.iana.org/time-zones/repository/releases/tzdata2015b.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 2dc5d94148e3dbf7511f35edd99099705d8ce392 
dated Thu Mar 19 23:28:11 2015 -0700 and tagged '2015b' in the experimental 
github repository at <https://github.com/eggert/tz>.

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

d9b56c8ec98d9158d10cf80df0181864c467a4387b8ced5701f466c40885ea524bc1d49b0e17c0a18d8006a423da1c1b9a7e74626c4a916dd37cbb85e04b2b0a 
  tzcode2015b.tar.gz
767782b87e62a8f7a4dbcae595d16a54197c9e04ca974d7016d11f90ebaf2537b804d111f204af9052c68d4670afe0af0af9e5b150867a357fc199bb541368d0 
  tzdata2015b.tar.gz

Here are the GPG checksums for the release files:

Paul Eggert

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