0.7.7 :small:`9 November, 2021`
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

.. rubric:: Bug fixes

- Fixed propagation of import error when importing `write_zarr` but not all dependencies are installed :pr:`579` :smaller:`R Hillje`
- Fixed issue with `.uns` sub-dictionaries being referenced by copies :pr:`576` :smaller:`I Virshup`
- Fixed out-of-bounds integer indices not raising :class:`IndexError` :pr:`630` :smaller:`M Klein`
- Fixed backed `SparseDataset` indexing with scipy 1.7.2 :pr:`638` :smaller:`I Virshup`

.. rubric:: Development processes

- Use PEPs 621 (standardized project metadata), 631 (standardized dependencies), and 660 (standardized editable installs) :pr:`639` :smaller:`I Virshup`
