Cfdm

----------------

**2023-03-10**

* New method: `cfdm.Field.del_properties`
(https://github.com/NCAS-CMS/cfdm/issues/241)
* New keyword parameter to `cfdm.unique_constructs`:
``ignore_properties`` (https://github.com/NCAS-CMS/cfdm/issues/240)
* New keyword parameter to `cfdm.NetCDFArray`: ``missing_values``
(https://github.com/NCAS-CMS/cfdm/issues/246)
* Fixed bug that caused `cf.write` to erroneously change external
netCDF variable names (https://github.com/NCAS-CMS/cfdm/issues/244)

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----------------

**2023-01-26**

* New class: `cfdm.InterpolationSubarray`
(https://github.com/NCAS-CMS/cfdm/issues/228)
* Relocate the call to `NetCDFRead._customize_read_vars` to earlier in
`NetCDFRead.read` (https://github.com/NCAS-CMS/cfdm/issues/233)
* Fixed bug that caused incorrect formula terms in output netCDF files
in some cases (https://github.com/NCAS-CMS/cfdm/issues/242)

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----------------

**2022-10-31**

* New method: `cfdm.Data.get_tie_point_indices`
* New method: `cfdm.Data.get_interpolation_parameters`
* New method: `cfdm.Data.get_dependent_tie_points`
* Record the names of files that contain the original data
(https://github.com/NCAS-CMS/cfdm/issues/215)
* New method: `cfdm.Field.get_original_filenames`
* New method: `cfdm.Data.get_original_filenames`
* New keyword parameter to `cfdm.write`: ``omit_data``
(https://github.com/NCAS-CMS/cfdm/issues/221)
* Fixed bug that caused incorrect data assignment with some multiple
list indices (https://github.com/NCAS-CMS/cfdm/issues/217)
* Fixed bug that caused a failure when printing date-time data with
the first element masked
(https://github.com/NCAS-CMS/cfdm/issues/211)

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----------------

**2022-08-17**

* New method: `cfdm.Field.auxiliary_coordinate`
* New method: `cfdm.Field.cell_measure`
* New method: `cfdm.Field.cell_method`
* New method: `cfdm.Field.coordinate`
* New method: `cfdm.Field.coordinate_reference`
* New method: `cfdm.Field.dimension_coordinate`
* New method: `cfdm.Field.domain_ancillary`
* New method: `cfdm.Field.domain_axis`
* New method: `cfdm.Field.field_ancillary`
* New method: `cfdm.Field.indices`
* New attribute: `cfdm.Field.array`
* New attribute: `cfdm.Field.datetime_array`
* New construct retrieval API methods
(https://github.com/NCAS-CMS/cfdm/issues/179)
* Implement (bar writing to netCDF files) lossy compression by
coordinate subsampling (https://github.com/NCAS-CMS/cfdm/issues/167)

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---------------

**2022-07-18**

* Upgrade to allow cfdm to work with Python 3.10
(https://github.com/NCAS-CMS/cfdm/issues/187)
* Fix bug that caused a hang when reading zero-length files
(https://github.com/NCAS-CMS/cfdm/issues/190)
* Fix bug to prevent error when writing vlen strings to a netCDF file
when compression has been set (for `netCDF4>=1.6.0`)
(https://github.com/NCAS-CMS/cfdm/issues/199)

---------------

**2022-03-10**

* Fixed bug that caused a failure from `cfdm.write` when writing
identical (auxiliary) coordinates to different data variables in
different groups (https://github.com/NCAS-CMS/cfdm/issues/177)
* Fixed bug that caused `cf.Domain.__str__` to fail when a dimension
coordinate construct does not have data
(https://github.com/NCAS-CMS/cfdm/issues/174)
* New dependency: ``packaging>=20.0``
* Changed dependency: ``cftime>=1.6.0``

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