1.3.3 (2018-03-01)
------------------

- Update test infrastructure to rely on new Astropy v3.0 plugins. [#461]

- Disable use of 2to3. This was causing test failures on Debian builds. [#463]

1.3.2 (2018-02-22)
------------------

- Updates to allow this version of ASDF to be compatible with Astropy v3.0.
  [#450]

- Remove tests that are no longer relevant due to latest updates to Astropy's
  testing infrastructure. [#458]

1.3.1 (2017-11-02)
------------------

- Relax requirement on ``semantic_version`` version to 2.3.1. [#361]

- Fix bug when retrieving file format version from new ASDF file. [#365]

- Fix bug when duplicating inline arrays. [#370]

- Allow tag references using the tag URI scheme to be resolved in schema files.
  [#371]

1.3.0 (2017-10-24)
------------------

- Fixed a bug in reading data from an "http:" url. [#231]

- Implements v 1.1.0 of the asdf schemas. [#233]

- Added a function ``is_asdf_file`` which inspects the input and
  returns ``True`` or ``False``. [#239]

- The ``open`` method of ``AsdfInFits`` now accepts URIs and open file handles
  in addition to HDULists. The ``open`` method of ``AsdfFile`` will now try to
  parse the given URI or file handle as ``AsdfInFits`` if it is not obviously a
  regular ASDF file. [#241]

- Updated WCS frame fields ``obsgeoloc`` and ``obsgeovel`` to reflect recent
  updates in ``astropy`` that changed representation from ``Quantity`` to
  ``CartesianRepresentation``. Updated to reflect ``astropy`` change that
  combines ``galcen_ra`` and ``galcen_dec`` into ``galcen_coord``. Added
  support for new field ``galcen_v_sun``. Added support for required module
  versions for tag classes. [#244]

- Added support for ``lz4`` compression algorithm [#258]. Also added support
  for using a different compression algorithm for writing out a file than the
  one that was used for reading the file (e.g. to convert blocks to use a
  different compression algorithm) [#257]

- Tag classes may now use an optional ``supported_versions`` attribute to
  declare exclusive support for particular versions of the corresponding
  schema. If this attribute is omitted (as it is for most existing tag
  classes), the tag is assumed to be compatible with all versions of the
  corresponding schema. If ``supported_versions`` is provided, the tag class
  implementation can include code that is conditioned on the schema version. If
  an incompatible schema is encountered, or if deserialization of the tagged
  object fails with an exception, a raw Python data structure will be returned.
  [#272]

- Added option to ``AsdfFile.open`` to allow suppression of warning messages
  when mismatched schema versions are encountered. [#294]

- Added a diff tool to ``asdftool`` to allow for visual comparison of pairs of
  ASDF files. [#286]

- Added command to ``asdftool`` to display available tags. [#303]

- When possible, display name of ASDF file that caused version mismatch
  warning. [#306]

- Issue a warning when an unrecognized tag is encountered. [#295] This warning
  is silenced by default, but can be enabled with a parameter to the
  ``AsdfFile`` constructor, or to ``AsdfFile.open``. Also added an option for
  ignoring warnings from unrecognized schema tags. [#319]

- Fix bug with loading JSON schemas in Python 3.5. [#317]

- Remove all remnants of support for Python 2.6. [#333]

- Fix issues with the type index used for writing out ASDF files. This ensures
  that items in the type index are not inadvertently overwritten by later
  versions of the same type. It also makes sure that schema example tests run
  against the correct version of the ASDF standard. [#350]

- Update time schema to reflect changes in astropy. This fixes an outstanding
  bug. [#343]

- Add ``copy_arrays`` option to ``asdf.open`` to control whether or not
  underlying array data should be memory mapped, if possible. [#355]

- Allow the tree to be accessed using top-level ``__getitem__`` and
  ``__setitem__``. [#352]

1.2.1(2016-11-07)
-----------------

- Make asdf conditionally dependent on the version of astropy to allow
  running it with older versions of astropy. [#228]

1.2.0(2016-10-04)
-----------------

- Added Tabular model. [#214]

- Forced new blocks to be contiguous [#221]

- Rewrote code which tags complex objects [#223]

- Fixed version error message [#224]

1.0.5 (2016-06-28)
------------------

- Fixed a memory leak when reading wcs that grew memory to over 10 Gb. [#200]

1.0.4 (2016-05-25)
------------------

- Added wrapper class for astropy.core.Time, TaggedTime. [#198]


1.0.2 (2016-02-29)
------------------

- Renamed package to ASDF. [#190]

- Stopped support for Python 2.6 [#191]


1.0.1 (2016-01-08)
------------------

- Fixed installation from the source tarball on Python 3. [#187]

- Fixed error handling when opening ASDF files not supported by the current
  version of asdf. [#178]

- Fixed parse error that could occur sometimes when YAML data was read from
  a stream. [#183]


1.0.0 (2015-09-18)
------------------

- Initial release.
