v1.2.1

• Support zoneinfo files generated with zic version 2014c and later.
• On platforms that only support positive 32-bit timestamps, ensure that conversions are accurate from the epoch instead of just from the first transition after the epoch.
• Minor documentation improvements.

TZInfo v1.2.1 on RubyGems.org

v1.2.0

• Raise the minimum supported Ruby version to 1.8.7.
• Support loading system zoneinfo data on FreeBSD, OpenBSD and Solaris. Resolves #15.
• Add canonical_identifier and canonical_zone methods to Timezone. Resolves #16.
• Add a link to a DataSourceNotFound help page in the TZInfo::DataSourceNotFound exception message.
• Load iso3166.tab and zone.tab files as UTF-8.
• Fix Timezone#local_to_utc returning local Time instances on systems using UTC as the local time zone. Resolves #13.
• Fix == methods raising an exception when passed an instance of a different class by making <=> return nil if passed a non-comparable argument.
• Eliminate require 'rational' warnings. Resolves #10.
• Eliminate "assigned but unused variable - info" warnings. Resolves #11.
• Switch to minitest v5 for unit tests. Resolves #18.

TZInfo v1.2.0 on RubyGems.org

v0.3.39

• Updated to tzdata version 2014a (https://mm.icann.org/pipermail/tz-announce/2014-March/000018.html).

TZInfo v0.3.39 on RubyGems.org

v0.3.38

• Updated to tzdata version 2013g (https://mm.icann.org/pipermail/tz-announce/2013-October/000015.html).

TZInfo v0.3.38 on RubyGems.org

v1.1.0

• TZInfo is now thread safe. ThreadSafe::Cache is now used instead of Hash to cache Timezone and Country instances returned by Timezone.get and Country.get. The tzinfo gem now depends on thread_safe ~> 0.1.
• Added a transitions_up_to method to Timezone that returns a list of the times where the UTC offset of the timezone changes.
• Added an offsets_up_to method to Timezone that returns the set of offsets that have been observed in a defined timezone.
• Fixed a "can't modify frozen String" error when loading a Timezone from a zoneinfo file using an identifier String that is both tainted and frozen. Resolves #3.
• Support TZif3 format zoneinfo files (now produced by zic from tzcode version 2013e onwards).
• Support using YARD to generate documentation (added a .yardopts file).
• Ignore the +VERSION file included in the zoneinfo directory on Mac OS X.
• Added a note to the documentation concerning 32-bit zoneinfo files (as
  included with Mac OS X).

TZInfo v1.1.0 on RubyGems.org

v1.0.1

• Fix a test case failure when tests are run from a directory that contains a dot in the path (issue #29751).

TZInfo v1.0.1 on RubyGems.org

v1.0.0

• Allow TZInfo to be used with different data sources instead of just the built-in Ruby module data files.
• Include a data source that allows TZInfo to load data from the binary zoneinfo files produced by zic and included with many Linux and Unix-like distributions.
• Remove the definition and index Ruby modules from TZInfo and move them into a separate TZInfo::Data library (available as the tzinfo-data gem).
• Default to using the TZInfo::Data library as the data source if it is installed, otherwise use zoneinfo files instead.
• Preserve the nanoseconds of local timezone Time objects when performing conversions (issue #29705).
• Don't add the tzinfo lib directory to the search path when requiring 'tzinfo'. The tzinfo lib directory must now be in the search path before 'tzinfo' is required.
• Add utc_start_time, utc_end_time, local_start_time and local_end_time instance methods to TimezonePeriod. These return an identical value as the existing utc_start, utc_end, local_start and local_end methods, but return Time instances instead of DateTime.
• Make the start_transition, end_transition and offset properties of TimezonePeriod protected. To access properties of the period, callers should use other TimezonePeriod instance methods instead (issue #7655).

TZInfo v1.0.0 on RubyGems.org

v0.3.37

• Updated to tzdata version 2013b (https://mm.icann.org/pipermail/tz-announce/2013-March/000010.html).

TZInfo v0.3.37 on RubyGems.org

v0.3.36

• Updated to tzdata version 2013a (https://mm.icann.org/pipermail/tz-announce/2013-March/000009.html).
• Fix TimezoneTransitionInfo#eql? incorrectly returning false when running on Ruby 2.0.
• Change eql? and == implementations to test the class of the passed in object instead of checking individual properties with respond_to?.

TZInfo v0.3.36 on RubyGems.org

v0.3.35

• Updated to tzdata version 2012i (https://mm.icann.org/pipermail/tz-announce/2012-November/000007.html).

TZInfo v0.3.35 on RubyGems.org