v4.7.3

[4.7.3] - 2025-09-12

Changed

• ggsave(): Large plot dimensions without units now require explicit unit specification.
  
  When plot size exceeds 20 without specifying units (e.g., ggsave(p, 300, 400)),
  
  we ask to specify units explicitly:
  
  ggsave(p, 300, 400, unit='px') or ggsave(p, 3, 4, unit='in').

Fixed

• ggtb() support in Swing/Batik frontend.
• Multiline support for axis labels in polar coordinates.
• When the plot size in ggsave() is specified in pixels, dpi now affects
  
  only the physical size, not the pixel dimensions as before.
• Blocking SwingUtilities.invokeAndWait() call in plot image export (AWT backend)

v4.7.2

[4.7.2] - 2025-09-01

Added

• Plot Layout:

  • New strip_spacing, strip_spacing_x, and strip_spacing_y parameters in theme() to control spacing between the facet strip (title bar) and the plot panel.
  • New panel_spacing, panel_spacing_x, and panel_spacing_y parameters in theme() to control spacing between plot panels in faceted plots, [#1380].

  See: example notebook.

• Image resolution is saved in the metadata of PNG files created with ggsave().

Changed

• plot-image-export: switched from Batik to Graphics2D API

Fixed

• ggsave(): memory leak when using geom_raster().
• Incorrect physical image size when exporting PDF with ggsave() without specifying dpi.

v4.7.2rc1

Updated version v4.7.2rc1

v4.7.1

[4.7.1] - 2025-08-13

Added

• ggsave():
  • support font synthesis for italic and bold styles.
  • px unit support for PNG and PDF formats.
  • w, h and unit parameters support for SVG [#1368].

Changed

• facet_wrap() now drops factor levels that do not appear in the data (i.e., empty panels) by default [#1322].
  
  To keep unused factor levels, use the new drop parameter, i.e., drop=False.

  See: example notebook.

• Removed extra spacing between facet strips and plot panels in facet_wrap() and facet_grid().

Fixed

• geom_livemap: can't draw a path crossing the antimeridian [#649].
• Tooltip for a line have higher priority than points, even if the point is specified first in the layer list [#1060].
• geom_ribbon(): tooltip appears in the wrong place on flipped ribbon [#1334].
• Arrow crossing -180 longitude is split into two arrows [#1364].
• Coordinate limits do not work on reversed scales [#1365]
• Misaligned axis labels and ticks in polar coordinates.
• Display order of fill categories not being set correctly in stacked plots? [#1367]
• Polars: add handling for Enum values [#1373]
• Unclear error when using geom_rect with discrete scales [#1287]
• xlim() breaks default scale_x_datetime() [#1348]
• scale_x_reverse breaks datetime formatting [#1257]
• theme(plot_title="blank") doesn't work with gggrid [#1349]
• theme: error parsing color value pen [#1216]
• Incorrect appearance of stacked density plot in polar coordinates [#1375]

v4.7.1rc1

Updated version v4.7.1rc1

v4.7.0

[4.7.0] - 2025-07-17

Added

• Time Series Plotting [#278],
  [discussion],
  [#678],
  [LPK-129]:

  • Support for Python time and date objects.
  • Support for timezone-aware datetime objects and Pandas/Polars Series.

  See: example notebook.

• Geometries:

  • geom_sina() [#1298].

    See: example notebook.

  • geom_text_repel() and geom_label_repel() [#1092].

    See: example notebook.

• Layer Labels (Annotations):

  • Support in geom_crossbar()

    See: example notebook.

  • Support in waterfall_plot() via relative_labels and absolute_labels parameters.

    See: example notebook.

  • New inherit_color() option in annotations configuration (see example notebooks above)

• waterfall_plot() - support for combining waterfall bars with other geometry layers [#1344].

  See: example notebook.

• Plot Layout:

  • New axis_text_spacing, axis_text_spacing_x, and axis_text_spacing_y parameters in theme() to control spacing between axis ticks and labels.
  • See new plot layout diagram notebook showing various layout options and their effects on plot appearance.

• More variants to specify a color by name:

  • all HTML/CSS colors;
  • various naming styles, e.g., dark-gray, darkgrey, dark_grey, DARKGRAY, etc.;
  • grayscale colors from gray0 (black) to gray100 (white);

  See the complete list of named colors.

• size_unit parameter in geom_point(), geom_text/label() and geom_pie() accepts two new values: 'min' and 'max' [#260].

  'min' sets the size unit to the smaller of the unit steps along the x and y axes, while 'max' sets it to the larger.
  
  This allows for more flexible relative sizing of points, pies and text in plots.

  See: example notebook.

Changed

• Native support for PNG and PDF exports [#1268]:

  Exporting to PNG and PDF formats now uses the ImageMagick library bundled with Lets-Plot Python wheels and available out-of-the-box.
  
  This replaces the previous dependency on the CairoSVG library and comes with improved support for LaTeX labels rasterization.
  
  Related changes:

  • ggsave: the w and h parameters override plot size, allowing to specify the output image size independently of the plot size.
  • ggsave: the dpi default value changed to 300.
  • ggsave: the unit default value changed to in (inches).

• Continuous data on discrete scales:

  Continuous data when used with discrete positional scales is no longer transformed to discrete data.
  
  Instead, it remains continuous, allowing for precise positioning of continuous elements relative to discrete ones.
  
  This resolves issues where combining discrete and continuous data in the same plot was difficult or impossible: [#1279].

  See: example notebook.

Tip

New way of handling continuous data on discrete scales could potentially break existing plots.
If you want to restore a broken plot to its original form, you can use the as_discrete() function to annotate continuous data as discrete.

• [BREAKING] Dropped support for Python 3.8 as it is in the "end-of-life" of its release cycle.
• [BREAKING] geom_boxplot(): when y-oriented, it now uses aesthetics xlower/xmiddle/xupper instead of lower/middle/upper [#1319].
• [BREAKING] waterfall_plot(): special flow_type value for label=element_text(color=...) replaced with inherit. See label in the documentation.
• [DEPRECATED] The position_dodgev() function and the 'dodgev' value for the position parameter are deprecated and will be removed in future releases.
• Plot layout: reduced margins and spacing for title, caption, axes, and legend.
• Updated RGB values for lightgray and green. To restore the previous colors, use gray75 and lime, respectively.
• waterfall_plot(): the appearance of the legend has been improved.
• geom_violin(): tooltips are not shown in the centerline of the violin if show_half != 0.
• geom_crossbar(): the midline is not shown in the legend when fatten is set to 0, or when there is no mapping for it.
• geom_pointrange(): the midpoint will not be drawn if the y aesthetic is set to None.
• geom_band(): the alpha aesthetic only affects the inner part of the geometry, as in geom_rect().
• geom_band(): show tooltip over the whole band, not just at the edges.

Fixed

• AWT: plot prevents wheel events from bubbling up to the parent component.
• Added tooltip for geom_hline and geom_vline on geom_livemap [#1056].
• geom_boxplot: unable to draw a y-oriented plot with stat='identity' [#1319].
• Can't add layer which uses continuous data to a plot where other layers use discrete input [#1323].
• Multiline legend labels were not vertically centered with their keys [#1331].
• Poor alignment in legend between columns [#1332].
• Ordered data was re-ordered by geom_boxplot [#1342].
• geom_rect: fixed data conversion for geom_livemap [#1347].
• ggsave: incorrect output when exporting markdown demo to PNG [#1362].
• as_discrete() does not work with aes addition [#1363].
• Sec: CVE-2024-47554 (commons-io) [#1231]

v4.7.0rc3

Updated version v4.7.0rc3

v4.7.0rc2

Updated version v4.7.0rc2

v4.7.0rc1

Updated version v4.7.0rc1

v4.6.2

[4.6.2] - 2025-03-28

Fixed

• macOS: incorrect system libraries linkage that may lead to Lets-Plot import failure:

   libc++abi: Terminating due to typed operator new being invoked before its static initializer in libcxx has been executed.
  

• geom_livemap(): map zoom freezes after multiple rapid clicks on +/- buttons [#1315].

• Misleading warnings when using CARTO 'base-midnight', 'base-antique' and 'base-flatblue' tilesets in livemap.