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Releases: matplotlib/matplotlib

REL: v3.4.0

26 Mar 05:16
v3.4.0
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Highlights of this release include:

  • Figure and Axes creation / management
    • New subfigure functionality
    • Single-line string notation for subplot_mosaic
    • Changes to behavior of Axes creation methods (gca, add_axes, add_subplot)
    • add_subplot/add_axes gained an axes_class parameter
    • Subplot and subplot2grid can now work with constrained layout
  • Plotting methods
    • axline supports transform parameter
    • New automatic labeling for bar charts
    • A list of hatches can be specified to bar and barh
    • Setting BarContainer orientation
    • Contour plots now default to using ScalarFormatter
    • Axes.errorbar cycles non-color properties correctly
    • errorbar errorevery parameter matches markevery
    • hexbin supports data reference for C parameter
    • Support callable for formatting of Sankey labels
    • Axes.spines access shortcuts
    • New stairs method and StepPatch artist
    • Added orientation parameter for stem plots
    • Angles on Bracket arrow styles
    • TickedStroke patheffect
  • Colors and colormaps
    • Collection color specification and mapping
    • Transparency (alpha) can be set as an array in collections
    • pcolormesh has improved transparency handling by enabling snapping
    • IPython representations for Colormap objects
    • Colormap.set_extremes and Colormap.with_extremes
    • Get under/over/bad colors of Colormap objects
    • New cm.unregister_cmap function
    • New CenteredNorm for symmetrical data around a center
    • New FuncNorm for arbitrary normalizations
    • GridSpec-based colorbars can now be positioned above or to the left of the main axes
  • Titles, ticks, and labels
    • supxlabel and supylabel
    • Shared-axes subplots tick label visibility is now correct for top or left labels
    • An iterable object with labels can be passed to Axes.plot
  • Fonts and Text
    • Text transform can rotate text direction
    • matplotlib.mathtext now supports overset and underset LaTeX symbols
    • math_fontfamily parameter to change Text font family
    • TextArea/AnchoredText support horizontalalignment
    • PDF supports URLs on Text artists
  • rcParams improvements
    • New rcParams for dates: set converter and whether to use interval_multiples
    • Date formatters now respect usetex rcParam
    • Setting image.cmap to a Colormap
    • Tick and tick label colors can be set independently using rcParams
  • 3D Axes improvements
    • Errorbar method in 3D Axes
    • Stem plots in 3D Axes
    • 3D Collection properties are now modifiable
    • Panning in 3D Axes
  • Interactive tool improvements
    • New RangeSlider widget
    • Sliders can now snap to arbitrary values
    • Pausing and Resuming Animations
  • Sphinx extensions
    • plot_directive caption option
  • Backend-specific improvements
    • Consecutive rasterized draws now merged
    • Support raw/rgba frame format in FFMpegFileWriter
    • nbAgg/WebAgg support middle-click and double-click
    • nbAgg support binary communication
    • Indexed color for PNG images in PDF files when possible
    • Improved font subsettings in PDF/PS
    • Kerning added to strings in PDFs
    • Fully-fractional HiDPI in QtAgg
    • wxAgg supports fullscreen toggle

REL: v3.4.0rc3

11 Mar 05:43
v3.4.0rc3
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REL: v3.4.0rc3 Pre-release
Pre-release

This is the third release candidate for Matplotlib 3.4.0.

REL: v3.4.0rc2

11 Mar 05:42
v3.4.0rc2
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REL: v3.4.0rc2 Pre-release
Pre-release

This is the second release candidate for Matplotlib 3.4.0.

REL: v3.4.0rc1

19 Feb 06:23
v3.4.0rc1
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REL: v3.4.0rc1 Pre-release
Pre-release

This is the first release candidate for Matplotlib 3.4.0.

REL: v3.3.4

28 Jan 08:54
v3.3.4
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This is the fourth bugfix release of the 3.3.x series.

This release contains several critical bug-fixes:

  • Fix WebAgg initialization.
  • Fix parsing QT_API setting with mixed case.
  • Fix build with link-time optimization disabled in environment.
  • Fix test compatibility with NumPy 1.20.
  • Fix test compatibility with pytest 6.2.

REL: v3.3.3

12 Nov 04:22
v3.3.3
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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 datetimes.
  • 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

15 Sep 06:53
v3.3.2
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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

14 Aug 00:29
v3.3.1
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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 Paths
  • 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

16 Jul 20:49
v3.3.0
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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 What's New and API changes in the documentation.

REL: v3.2.2

17 Jun 05:32
v3.2.2
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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