0.6.* :small:`2019-*-*`
~~~~~~~~~~~~~~~~~~~~~~~~~

- better support for aligned mappings (obsm, varm, layers)
  :noteversion:`0.6.22` :pr:`155` :smaller:`I Virshup`
- convenience accesors :func:`~anndata.AnnData.obs_vector`, :func:`~anndata.AnnData.var_vector` for 1d arrays.
  :noteversion:`0.6.21` :pr:`144` :smaller:`I Virshup`
- compatibility with Scipy >=1.3 by removing `IndexMixin` dependency.
  :noteversion:`0.6.20` :pr:`151` :smaller:`P Angerer`
- bug fix for second-indexing into views.
  :noteversion:`0.6.19` :smaller:`P Angerer`
- bug fix for reading excel files.
  :noteversion:`0.6.19` :smaller:`A Wolf`
- changed default compression to `None` in :func:`~anndata.AnnData.write_h5ad` to speed up read and write, disk space use is usually less critical.
  :noteversion:`0.6.16` :smaller:`A Wolf`
- maintain dtype upon copy.
  :noteversion:`0.6.13` :smaller:`A Wolf`
- :attr:`~anndata.AnnData.layers` inspired by `.loom <https://loompy.org>`_ files allows their information lossless reading via :func:`~anndata.read_loom`.
  :noteversion:`0.6.7`–:noteversion:`0.6.9` :pr:`46` & :pr:`48` :smaller:`S Rybakov`
- support for reading zarr files: :func:`~anndata.read_zarr`
  :noteversion:`0.6.7` :pr:`38` :smaller:`T White`
- initialization from pandas DataFrames
  :noteversion:`0.6.` :smaller:`A Wolf`
- iteration over chunks :func:`~anndata.AnnData.chunked_X` and :func:`~anndata.AnnData.chunk_X`
  :noteversion:`0.6.1` :pr:`20` :smaller:`S Rybakov`

0.6.0 :small:`1 May, 2018`
~~~~~~~~~~~~~~~~~~~~~~~~~~

- compatibility with Seurat converter
- tremendous speedup for :func:`~anndata.AnnData.concatenate`
- bug fix for deep copy of unstructured annotation after slicing
- bug fix for reading HDF5 stored single-category annotations
- `'outer join'` concatenation: adds zeros for concatenation of sparse data and nans for dense data
- better memory efficiency in loom exports
