[tz-announce] tzcode2013a and tzdata2013a available

[Paul Eggert]

The 2013a release of the tz code and data is available.  This release
does not contain fixes for Morocco this summer, which are still being
investigated.  Quite possibly there will be another release soon; it's
the season anyway.

The 2013a release does reflect the following changes circulated on the
tz mailing list:

  Change affecting binary data format:

    The zone offset at the end of version-2-format zone files is now
    allowed to be 24:00, as per POSIX.1-2008.  (Thanks to Arthor David Olson.)

  Changes affecting current and future time stamps:

    Chile's 2013 rules, and we guess rules for 2014 and later, will be
    the same as 2012, namely Apr Sun>=23 03:00 UTC to Sep Sun>=2 04:00 UTC.
    (Thanks to Steffen Thorsen and Robert Elz.)

    New Zones Asia/Khandyga, Asia/Ust-Nera, Europe/Busingen.
    (Thanks to Tobias Conradi and Arthur David Olson.)

  Many changes affect historical time stamps before 1940.
  These were deduced from: Milne J. Civil time. Geogr J. 1899
  Feb;13(2):173-94 <http://www.jstor.org/stable/1774359>.

  Changes affecting the code:

    Fix zic bug that mishandled Egypt's 2010 changes (this also affected
    the data).  (Thanks to Arthur David Olson.)

    Fix localtime bug when time_t is unsigned and data files were generated
    by a signed time_t system.  (Thanks to Doug Bailey for reporting and
    to Arthur David Olson for fixing.)

    Allow the email address for bug reports to be set by the packager.
    The default is tz at iana.org, as before.  (Thanks to Joseph S. Myers.)

    Update HTML checking to be compatible with Ubuntu 12.10.

    Check that files are a safe subset of ASCII.  At some point we may
    relax this requirement to a safe subset of UTF-8.  Without the
    check, some non-UTF-8 encodings were leaking into the distribution.

  Commentary changes:

    Restore a comment about copyright notices that was inadvertently deleted.
    (Thanks to Arthur David Olson.)

    Improve the commentary about which districts observe what times
    in Russia.  (Thanks to Oscar van Vlijmen and Arthur David Olson).

    Add web page links to tz.js.

    Add "Run by the Monkeys" to tz-art.  (Thanks to Arthur David Olson.)

Here are links to the release files:

  http://www.iana.org/time-zones/repository/releases/tzcode2013a.tar.gz
  http://www.iana.org/time-zones/repository/releases/tzdata2013a.tar.gz

  ftp://ftp.iana.org/tz/releases/tzcode2013a.tar.gz
  ftp://ftp.iana.org/tz/releases/tzdata2013a.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.

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

This release corresponds to commit
0fdbcdc2528dc22773c260bd3978910845cf9eab dated 2013-02-27
in the unofficial github repository at <https://github.com/eggert/tz>.

Here are the GPG checksums for the release files:

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