Matplotlib

This is the third bugfix release of the 3.4.x series.

This release contains several critical bug-fixes:

* Clarify deprecation of `Axes.figbox`
* Disable `MultiCursor` widget on `Axes` subplots which it is not tracking
* Don't simplify path in `LineCollection.get_segments`
* Fix DPI in subfigures, affecting tick spacing, and scatter marker size
* Fix broken EPS output when using Type 42 STIX fonts
* Fix change in tick behaviour when calling `Axes.clear`
* Fix class docstrings for `Norm`s created from `Scale`s
* Fix compatibility with NumPy 1.21.0
* Fix crash on broken TrueType fonts
* Fix incorrect hits from `Path.intersects_path`
* Fix leak if affine_transform is passed invalid vertices
* Fix legends of `stackplot` with `edgecolors='face'`
* Fix plot directive when building in parallel
* Fix `supxlabel` and `supylabel` behaviour in constrained layout
* Fix tests with latest Inkscape and Ghostscript
* Improve `DateFormatter` styling for month names when `usetex=True`
* Re-disable autoscaling after interactive zoom
* Work around bug in Pillow 8.3.0

This is the second bugfix release of the 3.4.x series.

This release contains several critical bug-fixes:

* Generate wheels usable on older PyPy7.3.{0,1}
* Fix compatibility with Python 3.10
* Add `subplot_mosaic` Axes in the order the user gave them to us
* Correctly handle 'none' *facecolors* in `do_3d_projection`
* Ensure that Matplotlib is importable even if there's no HOME
* Fix `CenteredNorm` with *halfrange*
* Fix `bar_label` for bars with NaN values
* Fix clip paths when zoomed such that they are outside the figure
* Fix creation of `RangeSlider` with *valinit*
* Fix handling of "d" glyph in backend_ps, fixing EPS output
* Fix handling of datetime coordinates in `pcolormesh` with Pandas
* Fix processing of some `errorbar` arguments
* Fix removal of shared polar Axes
* Fix resetting grid visibility
* Fix subfigure indexing error and tight bbox
* Fix textbox cursor color
* Fix TkAgg event loop error on window close
* Ignore errors for sip with no setapi (Qt4Agg import errors)

This is the first bugfix release of the 3.4.x series.

This release contains several critical bug-fixes:

* fix errorbar when specifying fillstyle
* fix Inkscape cleanup at exit on Windows for tests
* fix legends of colour-mapped scatter plots
* fix positioning of annotation fancy arrows
* fix size and color rendering for 3D scatter plots
* fix suptitle manual positioning when using constrained layout
* respect antialiasing settings in cairo backends as well