REL: v3.3.3

This is the third bugfix release of the 3.3.x series.

This release contains several critical bug-fixes:

* Fix calls to `Axis.grid` with argument `visible=True`.
* Fix fully masked `imshow`.
* Fix inconsistent color mapping in scatter for 3D plots.
* Fix notebook/nbAgg figures when used with ipywidgets in the same cell.
* Fix notebook/nbAgg/WebAgg on older (e.g., Firefox ESR) browsers.
* Fix pcolormesh with `datetime` coordinates.
* Fix performance regression with `datetime`s.
* Fix singular ticks with small log ranges.
* Fix timers/animations on wx and notebook backends.
* Remove certifi as a hard runtime dependency.

REL: v3.3.2

This is the second bugfix release of the 3.3.x series.

This release contains several critical bug-fixes:

* fix Axis scale on twinned Axes
* fix auto-close of Figures in nbagg
* fix automatic title placement if Axes is off the Figure
* fix autoranging of log scales with barstacked histogram
* fix extra redraws when using Button or TextBox widgets
* fix imshow with LogNorm and large vmin/vmax ranges
* fix plotting Pandas DataFrame with string MultiIndex
* fix scatter with `marker=''`
* fix scatter3d color/linewidth re-projection
* fix state of mode buttons in TkAgg backends
* include license files in built distribution
* reduce Visual C++ runtime requirements on Windows

REL: v3.3.1

This is the first bugfix release of the 3.3.x series.

This release contains several critical bug-fixes:

* fix docstring import issues when running Python with optimization
* fix `hist` with categorical data, such as with Pandas
* fix install on BSD systems
* fix nbagg compatibility with Chrome 84+
* fix ordering of scatter marker size in 3D plots
* fix performance regression when plotting `Path`s
* fix reading from URL in `imread`
* fix several regressions with new date epoch handling
* fix some bad constrained and tight layout interactions with colorbars
* fix use of customized toolbars in TkAgg and WXAgg backends

REL: v3.3.0

Highlights of this release include:

- Provisional API for composing semantic axes layouts from text or
  nested lists
- New Axes.sharex, Axes.sharey methods
- Turbo colormap
- colors.BoundaryNorm supports extend keyword argument
- Text color for legend labels
- Pcolor and Pcolormesh now accept shading='nearest' and 'auto'
- Allow tick formatters to be set with str or function inputs
- New Axes.axline method
- Dates use a modern epoch
- Improved font weight detection
- Axes3D no longer distorts the 3D plot to match the 2D aspect ratio
- More consistent toolbar behavior across backends
- Toolbar icons are now styled for dark themes
- Cursor text now uses a number of significant digits matching pointing
  precision
- Functions to compute a Path's size
- savefig() gained a backend keyword argument
- Saving SVG now supports adding metadata
- Saving PDF metadata via PGF now consistent with PDF backend
- NbAgg and WebAgg no longer use jQuery & jQuery UI

For the full details please see the whats new [1] and API changes [2]
in the documentation

[1] https://matplotlib.org/3.3.0/users/whats_new.html
[2] https://matplotlib.org/3.3.0/api/api_changes.html

REL: v3.3.0rc1

This is the first release candidate for Matplotlib 3.3.0.

REL: v3.2.2

This is the second bugfix release of the 3.2.x series.

This release contains several critical bug-fixes:

 - support fractional HiDPI scaling with Qt backends
 - support new Python and fix syntax errors in legacy Python
 - support new Qt 5 and fix support for Qt 4
 - fix animation writer fallback
 - fix figure resizing
 - fix handling of large arcs
 - fix issues with tight layout
 - fix saving figures after closing windows or under certain size
   conditions
 - fix scatter when specifying a single color
 - fix several memory leaks
 - fix unexpected autoscaling behavior
 - fix various issues with usetex
 - various minor bug and documentation fixes

REL: v3.2.1

This is the first bugfix release of the 3.2.x series.

This release contains several critical bug-fixes:

 - fix `Quiver.set_UVC` calls with scalar inputs
 - fix `bezier.get_parallels` failure from floating point rounding
   errors
 - fix markers specified as tuples (polygons, stars, or asterisks)
 - fix saving PNGs to file objects in some places
 - fix saving figures using the nbAgg/notebook backend
 - fix saving with tight layout using the PGF backend
 - fix setting custom datapath in rcParams (note: it is still
   deprecated)
 - fix various issues running setup.py in non-CI environments
 - fix xpdf distiller
 - various minor bug and documentation fixes

REL: v3.2.0

Highlights of this release include:

 - default image interpolation is now `'antialiased'` to better handle
   down-sampling and reduce artifacts when up-sampling by small
   ratios.
 - change when ticks switch to using an offset to improve readability
 - improvements to auto-scaling and auto-limits
 - `DivergingNorm` has been renamed to `TwoSlopeNorm`
 - support for 3 and 4 digit hex colors (`matplotlib#123` maps to `#112233`)
 - improvements to Logit scale ticker and formatter
 - control of where errorbars start getting placed with `errorevery`
 - correct kerning when laying out text
 - improvements to MovieRegistry

For the full details please see the whats new [1] and API changes [2]
in the documentation

[1] https://matplotlib.org/3.2.0/users/whats_new.html
[2] https://matplotlib.org/3.2.0/api/api_changes.html

REL: v3.2.0rc3

This is the third rc for Matplotlib 3.2

REL: v3.1.3

This is the final planned release of the 3.1.x series.

This release contains several critical bug-fixes:

 - suppress a warning with Pandas 1.0
 - support pillow >= 7
 - support dateutils >= 2.8.1
 - prevent an infinite recursion
 - do not clobber non-python registered signal handler
 - fix path intersection computation with 0 length segments
 - fix performance regression in draw_idle
 - several minor bugs