2025-01-28

• Introduction of dask for all data manipulations (#317)
• Fix bug that returned incorrect results when an invalid identifer is provided to cf.Field.cell_methods (#299)
• Upgrades to allow cfdm to work with Python 3.12 (#302)
• Extension to the HDF5 chunks API (#309)
• New function cfdm.netcdf_flattener that replaces the import of netcdf_flattener (#286)
• New function cfdm.netcdf_indexer that applies netCDF masking and unpacking to arbitrary arrays (#285)
• Allow access to netCDF-4 files in S3 object stores (#285)
• Allow a choice of netCDF engines (#285)
• Fix bug that caused cfdm.write to fail when a parametric Z dimension coordinate did not have a computed_standard_name attribute (#303)
• New class cfdm.H5netcdfArray
• New class cfdm.NetCDF4Array
• Changed dependency: numpy>=1.15,<2.0
• New dependency: h5netcdf>=1.3.0
• New dependency: h5py>=3.10.0
• New dependency: s3fs>=2024.6.0
• New dependency: dask>=2024.6.0,<=2024.7.1
• Removed dependency: netcdf_flattener

2024-03-01

• New keyword parameter to cfdm.Field.insert_dimension: constructs (#287)
• New example field 11: discrete sampling geometry trajectory features (#289)

2023-12-06

• Python 3.7 support removed (#274)
• Implemented the reading and manipulation of UGRID mesh topologies for CF-1.11 (#270)
• New methods: cfdm.Field.cell_connectivity, cfdm.Field.cell_connectivities
• New methods: cfdm.Field.domain_topology, cfdm.Field.domain_topologies
• New methods: cfdm.Field.del_mesh_id, cfdm.Field.get_mesh_id, cfdm.Field.has_mesh_id, cfdm.Field.set_mesh_id,
• New attribute: cfdm.Data.sparse_array
• New dependency: scipy>=1.10.0

2023-08-31

• Fix bug that prevented "https://" netCDF files from being read (#268)

2023-07-21

• Fix bug that caused very slow reads of datasets with compression by gathering or DSG ragged arrays (#260)
• Fix bug that prevented cfdm.read from accessing remote files in URL locations (#262)

2023-04-26

• New method: cfdm.Data.get_data
• Changes to facilitate CFA-netCDF in cf-python (#255)
• cfdm.read now always returns unicode strings from netCDF files (#251)
• Fix bug in cf.Data.second_element for some data shapes (#249)
• Fix bug when writing to disk coordinates with a computed_standard_name (#254)

2023-03-10

• New method: cfdm.Field.del_properties (#241)
• New keyword parameter to cfdm.unique_constructs: ignore_properties (#240)
• New keyword parameter to cfdm.NetCDFArray: missing_values (#246)
• Fixed bug that caused cf.write to erroneously change external netCDF variable names (#244)

2023-01-26

• New class: cfdm.InterpolationSubarray (#228)
• Relocate the call to NetCDFRead._customize_read_vars to earlier in NetCDFRead.read (#233)

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 (#215)
• New method: cfdm.Field.get_original_filenames
• New method: cfdm.Data.get_original_filenames
• New keyword parameter to cfdm.write: omit_data (#221)
• Fixed bug that caused incorrect data assignment with some multiple list indices (#217)
• Fixed bug that caused a failure when printing date-time data with the first element masked (#211)

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 (#179)
• Implement (bar writing to netCDF files) lossy compression by coordinate subsampling (#167)