1.34 2011-04-25

• This release is based on version 2011g of the Olson database. This release includes changes for Egypt.
• DateTime::TimeZone::Floating and DateTime::TimeZone::UTC are now singletons, since their internal state never changes.

1.33 2011-04-11

• This release is based on version 2011f of the Olson database. This release includes changes for the Falkland Islands.

1.32 2011-04-01

• This release is based on version 2011e of the Olson database. This release includes changes for Morocco and Chile.

1.31 2011-03-18

• Updates for Win32 time zones. Patch by David Pinkowitz.

1.30 2011-03-14

• This release is based on version 2011d of the Olson database. This release includes changes for Samoa, Turkey, and Cuba.

1.29 2011-03-07

• This release is based on version 2011c of the Olson database. This release includes new zones, America/Sitka and America/Metlakatla, as well as changes for Alaska and Chile.

1.28 2011-02-07

• This release is based on version 2011b of the Olson database. This release includes a new zone, America/North_Dakota/Beulah.

1.27 2011-01-19

• This release is based on version 2011a of the Olson database. This release includes historical updates for Australia and Hawaii.

1.26 2010-11-20

• Fix release engineering bugs. The last release had both a Build.PL and Makefile.PL, but the former did not list all the prereqs. Also, dynamic prereqs for Win32 and HPUX were not being added properly.

1.25 2010-11-20

• Attempting to determine the local time zone while inside a sort subroutine could cause an error "Can't return outside a subroutine". This was caused by stack corruption that happens when an eval "use $module" fails. Reported by Andy Jones. RT #63106.

1.24 2010-10-25

• This release is based on version 2010n of the Olson database. This release includes updates for Fiji.
• All modules in the distro now have the same $VERSION.

1.23 2010-10-25

• This release is based on version 2010n of the Olson database. This release includes updates for Fiji.

1.22 2010-09-27

• This release is based on version 2010m of the Olson database. This release includes historical updates for Hong Kong.

1.21 2010-08-20

• This release is based on version 2010l of the Olson database. This release includes updates for Egypt and Palestine.

1.20 2010-07-26

• This release is based on version 2010k of the Olson database. This release includes updates for Egypt, Finland (historical only), and Mexico. It also renames Pacific/Truk to Pacific/Chuuk and Pacific/Ponape to Pacific/Pohnpei.

1.19 2010-05-10

• This release is based on version 2010j of the Olson database. This release creates a new zone for Mexico (America/Bahia_Banderas).
• Dateline time zone on Win32 now always maps to a fixed -12:00 zone. Patch by David Pinkowitz.

1.18 2010-04-19

• This release is based on version 2010i of the Olson database. This release includes changes for Morocco, Taiwan (historical only), and Argentina.

1.17 2010-04-10

• Updated Win32 to Olson name translation mapping. Patch by David Pinkowitz. RT #56445.

1.16 2010-04-05

• This release is based on version 2010h of the Olson database. This release includes changes for Tunisia and Pakistan.

1.15 2010-03-29

• This release is based on version 2010g of the Olson database. This release includes changes for Bangladesh, Palestine, and Russia.

1.14 2010-03-22

• This release is based on version 2010f of the Olson database. This release includes changes for Antartica, Syria, and Samoa.
• Moved code to my hg repo at http://hg.urth.org/hg/DateTime-TimeZone.

1.13 2010-03-08

• This release is based on version 2010e of the Olson database. This release fixes a bug in the Bangladesh zone introduced in 2010d.

1.12 2010-03-08

• This release is based on version 2010d of the Olson database. This release has changes for Bangladesh, Fiji, Samoa, and Chile.

1.11 2010-03-01

• This release is based on version 2010c of the Olson database. This release has changes for Paraguay.
• Added a list of zones by country, and a list of zone links (aliases) to the docs for DateTime::TimeZone::Catalog.

1.10 2010-01-25

• This release is based on version 2010b of the Olson database. This release has changes for Mexico.

1.09 2010-01-18

• This release is based on version 2010a of the Olson database. This release has changes for Bangladesh.

1.08 2009-12-28

• This release is based on version 2009u of the Olson database. This release has changes for Bangladesh.

1.07 2009-12-24

• Fixed for local time zone determination on Win32. Our tests broke after the December 2009 Cumulative Time Zone Update from Microsoft. Patch by David Pinkowitz. RT #52978.

1.06 2009-12-21

• This release is based on version 2009t of the Olson database. This release has no user-visible changes, but I like to follow along anyway.

1.05 2009-11-16

• This release is based on version 2009s of the Olson database. It includes changes for Antarctica and Fiji.

1.04 2009-11-09

• This release is based on version 2009r of the Olson database. It includes changes for Antarctica.

1.03 2009-11-02

• This release is based on version 2009q of the Olson database. It includes historical changes for Hong Kong, updates for Syria, and a new zone, Asia/Novokuznetsk.

1.02 (I forgot to actually release this one)

• This release is based on version 2009p of the Olson database. The only changes in this release are for Argentina. This release should produce the same results as 1.01, but I did a new release just to keep up to date with the Olson versions.

1.01 2009-10-19

• This release is based on version 2009o of the Olson database. This release has changes for Pakistan and Bangladesh. In addition, I have also applied the Argentina patch again, as this has not been incorporated into the official Olson data yet.
• The t/04local.t test file will be skipped on HPUX, which is a very weird system. Suggested by Olivier Mengué. Fixes RT #50640.
• When installing this module on HPUX, it now adds DateTime::TimeZone::HPUX to its prereqs so you can determine the local time zone. Suggested by Olivier Mengué.

1.00 2009-10-17

• This release adds a patch from Debian (http://bugs.debian.org/551195) for Argentina. Argentina's idiotic government decided to change their DST rules with two days notice. Pointer to patch from Gregor Herrman. Fixes RT #50590.

0.99 2009-09-28

• This release is based on version 2009n of the Olson database. This release has changes for Pakistan.

0.98 2009-09-11

• Fixes for Win32 time zones. Added handling for new Windows time zones, thanks to Jim Brunette. This should fix test failures on some Win32 systems.

0.97 2009-09-08

• This release is based on version 2009m of the Olson database. This release has changes for Samoa and Palestine.

0.96 2009-08-18

• A $SIG{__DIE__} related test in 04local.t behaved differently on different platforms. The test has been narrowed so that it should work the same on all platforms. Reported by Jens Rehsack.

0.95 2009-08-18

• Attempting to load an invalid Olson-style name like "Bad/Name" did throw an error since 0.92. Reported by Florian Ragwitz.
• Localized $SIG{__DIE__} for every eval.

0.94 2009-08-17

• This release is based on version 2009l of the Olson database. This release has changes for Egypt.
• Localize $SIG{__DIE__} in DateTime::TimeZone::Local, so errors in evals done by that module are not seen by existing __DIE__ handlers. Based on a patch from Jim. RT #48567.

0.93 2009-07-20

• This release is based on version 2009k of the Olson database. This release has changes for Bangladesh and Mauritius.

0.92 2009-06-17

• This release is based on version 2009j of the Olson database. This release has changes for Bangladesh.

  I skipped the 2009i release because I was confused about how to handle the weird rules for Bangladesh (which has a change to DST without any future change from DST, but that's governments for you).

• Made sure to local-ize $@ before any eval, to prevent errors accidentally propogating out to your code.

0.91 2009-05-26

• This release is based on version 2009h of the Olson database. This release has no user-visible changes, but I like to follow along anyway.

0.90 2009-04-27

• This release is based on version 2009g of the Olson database. This release has changes for Egypt.

0.89 2009-04-13

• This release is based on version 2009f of the Olson database. This release has changes for Pakistan.

0.88 2009-04-06

• This release is based on version 2009e of the Olson database. This release has changes for Jordan and Palestine.

0.87 2009-04-05

• The DateTime::TimeZone::Local module will now try to load a subclass of the form DateTime::TimeZone::Local::$^O before falling back to the Unix subclass. This allows you to provide a new subclass on systems where the existing subclasses (Unix, Win32, and VMS) don't get the right answer. Based on a patch from Olivier Mengué.

0.86 2009-03-23

• This release is based on version 2009d of the Olson database. This release has changes for Morocco, Tunisia, Syria, and Argentina.

0.85 2009-03-16

• This release is based on version 2009c of the Olson database. The only changes in this release are for Cuba.
• Fixes for Win32 with Microsoft's December time zone update. This updated added a zone for Mauritius that wasn't accounted for in the DateTime::TimeZone::Local::Win32 module. Reported by David Pinkowitz. RT #43535.
• Added a hack to fix some brokenness with Module::Build::Compat that causes the compatibility Makefile.PL to fail on really old ExtUtils::MakeMaker versions (6.17 and older). RT #43605.

0.84 2009-01-21

• This release is based on version 2009a of the Olson database. Changes include spelling "Katmandu" as "Kathmandu" (with a link for the old spelling), fixes for historical rules in Switzerland, and changes to America/Resolute and Cuba for the past few years (but not present).
• If DateTime::TimeZone::Local could not load its OS-specific subclass because of a missing dependency, it would silently fall back on loading the Unix subclass, rather than throwing an error. RT #41305.
• Fixed a bug where the short names for some time zones were wrong. This mostly (exclusively?) manifested in time zone rules for the first half of the 20th century or so.

0.8301 2008-11-07

• Test fixes only. The 19local-win32 tried to skip tests when they're run without write access to the registry, but this was done in a very broken way.

0.83 2008-10-27

• This release is based on version 2008i of the Olson database. The major changes in this release are for Argentina.
• Updated the docs on how the local time zone is determined for various platforms.

0.82 2008-10-13

• This release is based on version 2008h of the Olson database. The major changes in this release are for Mauritius and Syria.

0.81 2008-10-06

• This release is based on version 2008g of the Olson database. The major changes in this release are for Brazil.

0.80 2008-09-15

• This release is based on version 2008f of the Olson database. The major changes in this release are for Mauritius, Morocco, Pakistan, Argentina, and Brazil.

0.7904 2008-08-30

• Added three more Windows time zone names to the Windows -> Olson mapping. This should fix test failures on up-to-date Windows boxes. Patch by David Pinkowitz. RT #38735.

0.7903 2008-08-22

• The DateTime::TimeZone->names_in_country() method was broken when called as a method. Reported by Lars Eggert. RT #38665.

0.7902 2008-08-18

• Fixed a lingering reference to DT::TimeZoneCatalog, which broke t/15catalog.t on fresh installs.

0.7901 2008-08-18

• This distro now provides the CET, EET, MET, and WET zones. These are provided by the Olson database for backwards compatibility. It's probably a bad idea to use them, but it's best if this package matches what a Unix system provides.
• Moved the catalog to DateTime::TimeZone::Catalog, which now has some POD that lists all the available zones.

0.79 2008-07-29

• This release is based on version 2008e of the Olson database. The major changes in this release are for Mauritius and Central Europe (historical changes only).
• Fixes for the local TZ tests on Win32. Thanks to David Pinkowitz for pointing out my mistake.

0.78 2008-07-12

• This release is based on version 2008d of the Olson database. The major changes in this release are for Mauritius and Brazil (which now has a new America/Santarem zone).

0.7701 2008-06-03

• Many fixes and improvements to the tests for local time zone handling on Windows. Based on a patch from David Pinkowitz.
  • There are no code changes in this release besides these test changes.

0.77 2008-05-27

• This release is based on version 2008c of the Olson database. The major changes in this release are for Morocco, Mongolia, and Pakistan.
• More Windows changes from David Pinkowitz. Determining the local time zone on a Win32 system should now work regardless of the system's locale. Previously it only worked for English language systems. RT #36201.

0.76 2008-05-18

• Dropped support for Perl 5.005.
  • Made the Win32 local time zone bits work on Vista and Server 2008. Patch by David Pinkowitz. RT #35733.

0.75 2008-04-25

• A stray STORABLE_attach method in DT::TZ::Floating caused freezing and thawing a floating timezone with Storable to fail badly. Reported by Kostas Chatzikokolakis.
• Changed the local time zone detection on Win32 to only require read access to the registry. Patch by David Pinkowitz. RT #35273.

0.74 2008-03-24

• This release is based on version 2008b of the Olson database. The major changes in this release are for San Luis in Argentina, Cuba, Iraq, and Syria.

0.73 2008-03-08

• The DT::TZ::Local::VMS module declared its package as DateTime::TimeZone::Local::Win32, which clearly is not right. Patched by Peter Prymmer.
• This release is based on version 2008a of the Olson database. The major changes in this release are for Argentina and Chile,

0.72 2007-12-31

• This release is based on version 2007j of the Olson database. The major changes in this release are for Argentina.

0.71 2007-12-28

• Fixes a major bug in the generation of time zone data. This bug affected any time zone that has more than one rule (most of them) and currently has no DST changes (many of them). An example would be America/Caracas. The symptom would either be mistakes about the current time zone or bogus exceptions when trying to create a local date. Reported by Éric Cholet.

0.70 2007-12-03

• This release is based on version 2007j of the Olson database. There is one major change in this release, for the new Venezuelan time zone.

0.6904 2007-11-09

• Updated the Windows -> Olson conversion table, though it's still English-only. Added some more Win32 tests to hopefully help diagnose a test failure report from a Win32 tester.

0.6903 2007-11-08

• The Win32::TieRegistry prereq was requiring version 1.0, which doesn't exist. I meant to require just any version. Reported by CJM. RT #30580.
• No code changes in this release.

0.6902 2007-11-05

• Fixed many sloppy uses of eval blocks which would leave $@ set after calling various DT::TZ methods/functions. This could cause unrelated error checking to find $@ set to something and log an error or die. Reported by Kat.

0.6901 2007-11-02

• Add Win32::TieRegistry to our prereqs if we're on Win32. Reported by Ruud H.G. van Tol.

0.69 2007-11-01

• This release is based on version 2007i of the Olson database, which includes changes to Cuba and Syria.

0.68 2007-10-01

• This release is based on version 2007h of the Olson database, which includes changes to Egypt, Iran, Palestine, Brazil, and Venezuela.

0.67 2007-08-20

• This release is based on version 2007g of the Olson database, which includes changes to Egypt, Antarctica, Australia, and Indiana (Perry County).

0.6603 2007-07-07

• The DateTime::TimeZone->names_in_country() method returned the wrong thing in scalar context. Instead of a simple array reference, it returned a reference to an array reference. Reported by John O'Rourke. RT #27843.

0.6602 2007-05-29

• There was a bug in the 04local.t tests that did not manifest itself on my dev machine, but would've been seen on any machine with an /etc/default/init file. Reported by Jonathan Leffler.

0.6601 2007-05-08

• 0.66 screwed up the test count in 04local.t if certain tests were skipped. Reported by David Precious.

0.66 2007-05-07

• This release is based on version 2007f of the Olson database, which includes changes to Haiti, Turks and Caicos Islands, and New Zealand.
• If /etc/localtime is a symlink, but trying to follow that link does not find a zone name, fall back to trying to find a matching file in /usr/share/zoneinfo. RT #26438.
• Require Cwd 3.0+, since Cwd;:abs_path() in older versions does not following a chain of symlinks.

0.6501 2007-04-22

• The test for the new symlink handling could fail on some systems (notably OSX). Reported by Randal Schwartz.

0.65 2007-04-21

• Handle cases where /etc/localtime is a symlink pointing to another symlink (and so forth) by using Cwd::abs_path() instead of readlink(). Fixes RT #26438.
• When creating an Olson time zone object, DT::TZ will now check to see if the object being loaded is from an older version of the Olson catalog than the current version of DT::TZ and issue warning if this is the case. This is useful because obsolete module files may exist when a zone name is replaced by a link, or just retired entirely.

0.64 2007-04-02

• This release is based on version 2007e of the Olson database (changes in the Syria and Honduras time zones).

0.63 2007-03-20

• This release is based on version 2007d of the Olson database.
• Fix determination of local time zone on systems where /etc/localtime is a symlink. This broke in 0.61. Reported by Bradley C Bailey. RT #25348.

0.62 2007-02-26

• This release is based on version 2007c of the Olson database.

0.6101 2007-02-18

• Fixes a major bug in 0.61. Passing "local" as a time zone new to DateTime::TimeZone->new() caused a fatal error.

0.61 2007-02-18

• Lots of internal changes in the code used to determine a system's local time zone.
• As a result, we now have a much better method for doing this on Windows systems, by looking at the registry. See DateTime::TimeZone::Local::Win32 for details.

0.60 2007-02-13

• This release is based on version 2007b of the Olson database.

0.59 2007-01-18

• When trying to find the local timezone for a machine based on /etc/localtime, ignore /usr/share/zoneinfo/posixrules. This fixes a bug seen on FreeBSD 6.2. Reported by . RT #24026.
• For infinity, use 100 ** 1000 instead of 100 ** 100 ** 100. This may fix the problems with infinity on some platforms (or may not). Suggested by Bjorn Tackmann.

0.58 2007-01-08

• This release is based on version 2007a of the Olson database.

0.57 2006-11-27

• This release is based on version 2006p of the Olson database.

0.56 2006-11-16

• Really fix the sorting of names_in_country(). Patch by Tatsuhiko Miyagawa.
• Allow names like "JST-9" and "GMT+0" in $ENV{TZ} when trying to find the local time zone. Reported by Tatsuhiko Miyagawa.

0.55 2006-11-06

• This release is based on version 2006o of the Olson database.

0.54 2006-10-25

• Got rid of the STORABLE_attach methods. This was causing bugs when trying to freeze/thaw a DateTime.pm object, and I realized that because of how the DT::TimeZone internals work, there's not much gained by using STORABLE_attach instead of STORABLE_freeze. Even with STORABLE_freeze, the core data structures for a timezone are still shared.

0.53 2006-10-24

• Freezing and thawing a DT::TimeZone::OffsetOnly object was broken in 0.52 (and probably earlier versions as well). Reported by Tatsuhiko Miyagawa.
• Freezing and thawing a DT::TimeZone::Floating object was also broken.

0.52 2006-10-22

• The names_in_country() method no longer sorts the zone names. Instead, it returns them in order from most- to least-populated.
• Added a STORABLE_attach method for integration with newer versions of Storable which provide better support for singletons.
• Made offset_as_seconds() and offset_as_string() work as class methods, since the docs say they should. Reported by Tatsuhiko Miyagawa.

0.51 2006-10-13

• Added two new catalog-related functions, countries() and names_in_country(). Using these functions allows you to map ISO3066 country codes to the time zones used in that country. Based on code by Tatsuhiko Miyagawa.

0.50 2006-10-10

• This release is based on version 2006n of the Olson database.

0.49 2006-10-02

• This release is based on version 2006m of the Olson database.

0.48 2006-09-18

• This release is based on version 2006l of the Olson database.
• Fix finding of local time zone when there is a $SIG{__DIE__} handler in effect. The handler broke the internal use of exceptions in one of DateTime::TimeZone::Local's methods. Reported by JD Hedden. RT #20982.

0.47 2006-08-22

• This release is based on version 2006j of the Olson database.
• Added a link to Asia/Tokyo for the "JST-9" timezone. According to Kenichi Ishigaki this is a TZ env var setting commonly used in Japan.
• Some links in the Olson data pointed to other links, or pointed to non-existent zone names. These have been fixed so that all links resolve to valid zones, and this is now part of the test suite.

0.46 2006-05-08

• This release is based on version 2006g of the Olson database.

0.45 2006-05-01

• This release is based on version 2006f of the Olson database.

0.44 2006-04-17

• This release is based on version 2006d of the Olson database.

0.43 2006-04-13

• This release is based on version 2006c of the Olson database.
• Added a link for AKST9AKDT (to America/Anchorage).

0.42 2006-02-20

• This release is based on version 2006b of the Olson database.

0.41 2006-01-31

• This release is based on version 2006a of the Olson database.

0.40 2005-12-27

• This release is based on version 2005r of the Olson database. This includes the latest Canadian changes to match the recent US changes. Also note that as of this version several zones which used to be links, including "EST", "MST", and "CST6DST", are now separate zones.

0.39 2005-06-05

• This release is based on version 2005o of the Olson database.

0.3801 2005-11-24 the "not turkey day" release

• The last release included some generated modules for old zones (like Europe/Belfast) which are now links to existing zones. These modules referenced the non-existent DateTime::TimeZone::Singleton module. Reported by Rafael Garcia-Suarez.

0.38 2005-11-21

• Trying to create a DateTime object during DST exactly 11 years in the future (really, 1 year after the end of the pre-generated TZ change data that ships in the package) cause an error. Reported by Daniel B Boorstein.
• This release is based on version 2005n of the Olson database.
• Added a new method, has_dst_changes(), which indicates whether a given zone has any DST changes.

0.37 2005-08-22

• Make sure that provided time zone names are valid, because DateTime::TimeZone uses them in an eval. If you were passing user-provided data directly to DateTime::TimeZone->new, someone could give a string like "America/Chicago; system 'rm -rf /';", which would be bad. Reported by Matthew Reilly.
• Made it possible to call catalog-related functions as methods.
• This release is based on version 2005l of the Olson database. This include some major changes coming up in the US as a whole in 2007, along with other changes for just Indiana.

0.36 2005-04-21

• This release is based on version 2005i of the Olson database.

0.35 2005-03-15 the "I hate this dope" release

• This release is based on version 2005g of the Olson database.
• STORABLE_thaw() now returns $self in preparation for proposed changes to Storable.

0.34 2005-03-11

• Some time zone short names were incorrectly being given as something like "GMT/BST", when it should have been alternating between GMT and BST based on the daylight saving time. Reported by Tom Yandell.
• This release is based on version 2005f of the Olson database.

0.33 2005-02-26

• This release is based on version 2005e of the Olson database.
• When trying to determine the local time zone, if /etc/localtime is a file, make sure that matching file in /usr/share/zoneinfo is not a symlink.

0.32 2004-01-05

• Fix for bug revealed by DateTime 0.23, which could cause an "undefined value in eq" warning when creating objects for dates in the far future that were during DST.
• This release is based on version 2005a of the Olson database.

0.31 2004-12-09

• This release is based on version 2004g of the Olson database.

0.30 2004-10-13

• This release is based on version 2004e of the Olson database.

0.29 2004-09-22

• This release is based on version 2004d of the Olson database.

0.28 2004-07-24

• This release is based on version 2004b of the Olson database. Note that some Argentinian time zones have moved from America to America/Argentina, though there are aliases for the old names.

0.27 2004-05-27

• This release is based on version 2004a of the Olson database.
• /etc/timezone and /etc/TIMEZONE are not the same thing. Code for getting the local time zone name from the latter was supplied by Daniel Boorstein.
• Added support for getting the local time zone from /etc/default/init. Suggested by Daniel Boorstein.

0.2601 2004-03-16

• Fix test failure which could happen if tests were run before DateTime.pm is installed. Reported by Slaven Rezic.

0.26 2004-03-09

• Added DateTime::TimeZone->is_valid_name class method.
• Added Storable freeze & thaw hooks. This should fix RT ticket #5542, reported by Dan Rowles (I hope).

0.2507 2004-02-14 the "nothing says love like timezones" release

• Fix a test failure in t/04-local.t on systems where /etc/localtime is a copy of a zoneinfo file, not a symlink. This was a bug in the testing code. Reported by Warren Dodge and a few others.
• If /etc/localtime was a copy of a zoneinfo file, then the current working directory could be changed while trying to determine the local time zone, because we use File::Find to find a matching zoneinfo file. Reported by someone ... (I can't find the message reporting this).
• Update the Makefile.PL to work with Module::Build 0.23.

0.2506 2003-12-15

• On systems where /etc/localtime is a copy of a zone info file (like FreeBSD), we now look for a matching file in /usr/share/zoneinfo in order to determine the local time zone. Based on a patch from Slaven Rezic.
• This release is based on the 2003e Olson database.

0.2505 2003-10-27

• The change in 0.2504 to accomodate SuSE's /etc/sysconfig/clock file broke this feature on RedHat. Sigh. Reported by John Siracusa.

0.2504 2003-10-25

• If a timezone module cannot be loaded, give a more useful error message if the failure is due to a syntax error in the module, as opposed to the specified time zone not existing. Based on a patch from Alexey Mahotkin.
• Require Pod::Man 1.14+, so that head3/head4 markup doesn't cause installation to die.
• SuSE puts TIMEZONE="Foo/Bar" in the /etc/sysconfig/clock file, but DT::TZ::Local just looked for ZONE="...". Reported by Pete.

0.2503 2003-10-06

• Made the offset string -> number conversion slightly less strict, so that 1:00:00 is accepted, as opposed to required 01:00:00. Without colons, it still must be four or six digits, however.
• This release is based on the 2003d Olson database, which contains updates for various zones.
• Fixed a bug in DateTime::TimeZone::OlsonDB for zones where an observance change occurred at UTC year X, and a new rule started at local year X + 1, but the offset meant that these were actually the same year. No zones in the previous release were affected, and this bug was only uncovered by the new Olson data.
• Handle rule times of 24:00 in the Olson data. Again, this was not present in previous versions of the Olson data.

0.2502 2003-09-09

• Lots of fixes and improvements in how offsets are converted from strings to numbers. Also, a DT::TZ::OffsetOnly object now normalizes its offset so that two offsets created from different strings, but representing the same offset, now return the same value from the name() method. Patched by Joshua Hoblitt.
• More env vars and files are looked at when trying to determine what the local time zone is. Thanks to Date::Manip for this.
• Added SIGNATURE file to distribution.

0.2501 2003-08-10

• Fixed a test that failed because of a change in the DateTime.pm from_object() API.

0.25 2003-07-20

• Removed a test that only passed with DateTime CVS HEAD installed.

0.24 2003-07-20

• Fixed bugs in generated data for many time zones. Upgrading is highly recommended!
• This version is much better tested than any previous version. The script tools/tests_from_zdump can be used to generate fairly comprehensive tests for almost every time zone. The generated tests are not shipped with the distribution because they are too huge, and take too long to run (400,000+ tests in about 25 minutes).

0.23 2003-07-03

• $_ was being overwritten if you specified a time zone of "local". This could cause problems in for loops with implicit iterators if you were to create a DateTime object with a "local" time zone inside your own loops. Fixed by Iain Truskett.

0.22 2003-06-28

• The is_olson method was returning true for all objects. Reported by Flavio Glock.

0.21 2003-06-25

• Switched to Module::Build, which should fix the installation problems caused by very long Makefile lines on some platforms.
• Fixed a bug in finding the correct data for a given datetime. This could occur when calling set_time_zone on an object that was very close to a DST transition, though it only affected some time zones in a few specific circumstances. Reported by Ben Bennett.

0.20 2003-06-20

• Load File::Spec in DT::TZ::Local. Reported by John Siracusa.

0.19 2003-06-13

• The name() method will now always return something that can be used to recreate the original object by calling DateTime::TimeZone->new(). The only class which changed was DT::TZ::Floating, but the fact that name() is guaranteed to work in recreating the object is an API change.

0.18 2003-06-06

• Switched the internal data structure for the Olson database to use array references instead of hash references. This seems to save a reduce memory usage to about 66% of the hash based version. Additionally, the files themselves have gotten much smaller. This was all partially based on a patch by Eugene van der Pijll.

0.17 2003-05-25

• Fixed test failures on system where /etc/localtime is not a symlink. Diagnosed by Iain Truskett.
• We look in more places to determine the local time zone: -- Check for /etc/timezone file. -- Check for /etc/sysconfig/clock file. Patch from Rick Measham.

  Testing help from Ben Bennett.

• Added is_olson method so object created from a named Olson database time zone can be distinguished from other types of objects.

0.16 2003-05-07

• Fixed a bug where a POSIX time zone in $ENV{TZ} could cause the code to try to load a module named something like "DateTime::TimeZone::5.0::03".
• The feature which attempts to read /etc/localtime to determine the time zone was broken. Reported by John Siracusa.

0.15 2003-05-05

• Fixed some bugs in calculations of offsets for future datetimes could be incorrect. This also quiets some warnings from DateTime.pm's time zone tests.

0.14 2003-05-05

• Make sure tests always run with warnings on.
• The were major bugs in handling time zones where the second to last observance had "infinite" rules (rules where the "TO" field is "max") and the last observance did not specify rules. An example of this is America/Belem.
• Fixed a bug in the generated time zone code that caused it to do more work than it should when calculting offsets for future datetimes.

0.13 2003-05-03

• Fixed DateTime::TimeZone::OffsetOnly constructor so that it only accepts valid offsets. Previously, invalid offsets like "foo" were turned into zero internally.
• Made "local" look for /etc/localtime symlink as part of determining local time zone.
• Added a links() function to DateTime::TimeZone.
• Included all the links from Olson db file named backwards, which includes things like "US/Central".
• When searching for the current offset based on the local time, we now prefer the later of the two offsets rather than the earlier. Otherwise, offset shifts larger than a day can cause some very strange problems when doing date math.
• DateTime::TimeZone::OffsetOnly objects now return the offset in string form when their name() or short_name_for_datetime() methods are called. Suggested by Rick Measham.

0.12 2003-04-12

• Updated to latest Olson database (2003a).
• Fixed a bug in handling time zones with only one historical offset, like Pacific/Johnston.

0.11 2003-03-26 the "Asia/Baghdad release"

• Fixed two bugs, both of which made some time zones unusable.. One affected time zones that do not have any DST changes, and the other affected time zones that have exactly two historical offsets (one of which would be the current offset), such as Pacific/Tarawa. Reported by Eric Cholet.

0.10 2003-03-20

• Fixed a bug in the DateTime::TimeZone::offset_as_seconds bug when trying given a negative number that resulted in an offset that included minutes (not a whole hour). Found by Flavio Glock.

0.09 2003-02-26

• Fixed an infinite recursion bug in generating future time zone data that occurred when $ENV{TZ} was something like "America/Chicago". Sort of reported by Eugene van der Pijll ;)

0.08 2003-02-22

• Fix handling of "local" time zone so that it passes a string to the OffsetOnly constructor instead of a number. Reported by Eric Cholet.
• Fix DateTime::TimeZone::OffsetOnly documentation to specify that offset must be specified as string, not a number.

0.07 2003-02-19

• Skip tests unless DateTime.pm 0.06 is installed. Otherwise we have a bootstrapping problem since DateTime 0.06 needs DateTime::TimeZone 0.06+.

0.06 2003-02-16

• Changes to work with DateTime.pm 0.06.
• DateTime::TimeZone::offset_as_seconds handles '0' properly.
• Fix a bug in handling future times for time zones with recurring rules. The symptom would be the error "Invalid local time for date ..."
• Time zone data is now stored in a simple array, and searched using a binary search algorithm. This eliminates the need to install Tree::RedBlack, and makes looking up time zone data quicker. Suggested by Jonathan Peacock.

0.05 2003-02-13

• The offset_as_string function did not handle negative offsets properly. Patch from Kellan Elliott-McCrea.
• Allow 'Z' as an offset name, equivalent to 'UTC'. Patch from Kellan Elliott-McCrea.
• Make sure DT::TZ subclasses which need to override is_dst_for_datetime do so.
• Changed offset_as_seconds and offset_as_string so that the former always assumes its arg is a string and the latter always assumes it got a number.

0.04 2003-02-10

• Be forgiving of bad names in $ENV{TZ} and just calculate local offset instead.

0.03 2003-02-09

• Fixed bug in new method that should have caused DateTime::TimeZone to not be loadable.
• Added is_dst_for_datetime method.

0.02 2003-02-09

• Updated version number to non-dev-release so that it's visible when CPAN.pm looks for it as a prereq to DateTime.pm. Otherwise identical to 0.02 and still alpha/beta-ish.

0.01_01 2003-02-06

• Don't make pod for generated timezone modules.
• Fix a buglet that caused test 01load.t to fail with some versions of Test::More. Reported by John Peacock.

0.01_00 2003-02-04

• Initial alpha release