Versioned HDF5 Change Log

1.2.2 (2020-02-04)

Minor Changes

• Many improvements to performance throughout the library.

• Added a benchmarking suite using airspeed velocity. Graphs of the benchmarks can be viewed at https://deshaw.github.io/versioned-hdf5/benchmarks/.

• Versioned HDF5 now depends on ndindex version 1.5.1 or greater.

1.2.1 (2020-12-30)

Minor Changes

• Python 3.6 support has been dropped. The lowest version of Python now supported is 3.7.

• Fix creating a completely empty sparse dataset

• Use ndindex.ChunkSize internally. This is the beginning of an overhaul that improves the performance of many operations. ndindex 1.5 or newer is now required.

1.2 (2020-11-17)

Major Changes

• Add support for sparse datasets (data=None).

• Store the chunks on an attribute of the dataset.

• versioned-hdf5 is currently pinned to h5py<3. h5py 3 support will be added in a future version.

• VersionedHDF5File[timestamp] now returns the closest version before timestamp if there is no version at timestamp.

1.1 (2020-09-15)

Major Changes

• Added support for shape-0 datasets.

• Fix a memory leak where in-memory datasets would not be garbage collected.

• Added support for empty datasets (size 0).

• Make sure versioned data is read-only after closing and reopening the file.

• Allow deleting groups and datasets between versions. Note that currently dataset metadata cannot change between versions, even if they are deleted in between.

Minor Changes

• Most tests now use a temporary directory instead of writing a file in the current directory.

• Fix logic for handling trailing slashes with in.

• Automatically create intermediate groups when creating a dataset.

• Make indices that should give a scalar object do so instead of giving a shape () array.

1.0 (2020-08-03)

Major Changes

• First release of Versioned-HDF5.