axes_grid1 has a bunch of great tools, but the API is sometimes idiosyncratic, its not well maintained, partially because the code is quite complicated. The best methods can and should be moved to the core library.
Polar Overhaul
Updated Aug 21, 2017
No description
Migrate to `pytest`
Updated Jan 1, 2019
In general we're migrating to pytest for test discovery and execution.
The PRs should be merged into master. No backporting is necessary.
Categorical Support
Updated Jun 18, 2018
Better support for categorical (ordinal and nominal) data. Continuation of GSOC project, more information can be found at https://story645.github.io/
Documentation overhaul
Updated Jan 12, 2019
Documentation in transition to numpydoc and sphinx-gallery