This is the second bugfix release of the 3.5.x series.

This release contains several bug-fixes and adjustments:

• Add support for Windows on ARM (source-only; no wheels provided yet)
• Add year to concise date formatter when displaying less than 12 months
• Disable QuadMesh mouse cursor to avoid severe performance regression in pcolormesh
• Delay backend selection to allow choosing one in more cases
• Fix automatic layout bugs in EPS output
• Fix autoscaling of scatter plots
• Fix clearing of subfigures
• Fix colorbar exponents, inversion of extensions, and use on inset axes
• Fix compatibility with various NumPy-like classes (e.g., Pandas, xarray, etc.)
• Fix constrained layout bugs with mixed subgrids
• Fix errorbar with dashes
• Fix errors in conversion to GTK4 and Qt6
• Fix figure options accidentally re-ordering data
• Fix keyboard focus of TkAgg backend
• Fix manual selection of contour labels
• Fix path effects on text with whitespace
• Fix quiver in subfigures
• Fix RangeSlider.set_val displaying incorrectly
• Fix regressions in collection data limits
• Fix stairs with no edgecolor
• Fix some leaks in Tk backends
• Fix tight layout DPI confusion
• Fix tool button customizability and some tool manager bugs
• Only set Tk HiDPI scaling-on-map for Windows systems
• Partially allow TTC font collection files by selecting the first font

This is the first bugfix release of the 3.5.x series.

This release contains several critical bug-fixes:

• fix installation issues when setting a default backend
• fix add_lines on horizontal colorbars
• fix streamplot with start points on right or top edge
• fix colorbars with boundaries or NoNorm
• fix colorbars with negative contours
• fix colorbars with tight layout
• fix setting Axis label alignment to center
• fix subfigure tight bounding box
• fix subplot parameter window on macosx backend
• fix unit handling in Collections.set_offsets
• fix unyt integration in errorbar
• re-display date offset in ConciseDataFormatter after zoom
• reduce do_3d_projection deprecation warnings in external artists

Highlights of this release include:

• Figure and Axes creation / management
  • subplot_mosaic supports simple Axes sharing
  • Figure now has draw_without_rendering method
  • Figure __init__ passes keyword arguments through to set
• Plotting methods
  • Add Annulus patch
  • set_data method for FancyArrow patch
  • New arrow styles in ArrowStyle and ConnectionPatch
  • Setting collection offset transform after initialization
• Colors and colormaps
  • Colormap registry (experimental)
  • Image interpolation now possible at RGBA stage
  • imshow supports half-float arrays
  • A callback registry has been added to Normalize objects
• Titles, ticks, and labels
  • Settings tick positions and labels simultaneously in set_ticks
• Fonts and Text
  • Triple and quadruple dot mathtext accents
  • Font properties of legend title are configurable
  • Text and TextBox parse_math option
  • Text can be positioned inside TextBox widget
  • Simplified font setting for usetex mode
  • Type 42 subsetting is now enabled for PDF/PS backends
• rcParams improvements
  • Allow setting default legend labelcolor globally
• 3D Axes improvements
  • Axes3D now allows manual control of draw order
  • Allow changing the vertical axis in 3D plots
  • plot_surface supports masked arrays and NaNs
  • 3D plotting methods support data keyword argument
• Interactive tool improvements
  • Colorbars now have pan and zoom functionality
  • Updated appearance of Slider widgets
  • Selector additions of clearing, dragging, and removal
  • CallbackRegistry objects gain a method to temporarily block signals
  • Directional sizing cursors
• Sphinx extensions
  • More configuration of mathmpl sphinx extension
• Backend-specific improvements
  • New GTK4 backend
  • New Qt6 backend
  • HiDPI support in Cairo-based, GTK, and Tk backends
  • Qt figure options editor improvements
  • WX backends support mouse navigation buttons
  • WebAgg uses asyncio instead of Tornado

First release candidate for v3.5.0

First beta release for v3.5.0

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 Norms created from Scales
• 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

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

This is the third release candidate for Matplotlib 3.4.0.