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[Bug]: PDF backend culls visible hexbin cells after path collection optimization

backend: pdf

Status: Open.

#31999 In matplotlib/matplotlib;

· yuzie007 opened on Jul 5, 2026

Fix PDF path collection culling for hexbin offsets

backend: pdf

Status: Open (in progress).

matplotlib/matplotlibnumber 32000

#32000 In matplotlib/matplotlib;

· yuzie007 opened on Jul 5, 2026

Add font family to mismatched font weight warning

Maintenance

Status: Open (in progress).

matplotlib/matplotlibnumber 32104

#32104 In matplotlib/matplotlib;

· QuLogic opened on Jul 23, 2026

[Bug]: Font lookup when rendering math text

topic: text/mathtext

Status: Open.

#32164 In matplotlib/matplotlib;

· dnicolodi opened on Aug 3, 2026

[Bug]: GIF frames become skewed when using PillowWriter in matplotlib 3.11.1

status: confirmed bug

topic: animation

Status: Open.

#32186 In matplotlib/matplotlib;

· hirohira9119 opened on Aug 8, 2026

TST: Set subprocess timeouts consistently on CI

Status: Open (in progress).

matplotlib/matplotlibnumber 32198

#32198 In matplotlib/matplotlib;

· QuLogic opened on Aug 10, 2026

Raise a clear error on incomplete Type1 font sections

topic: text/fonts

Status: Open (in progress).

matplotlib/matplotlibnumber 32193

#32193 In matplotlib/matplotlib;

· vsaraikin opened on Aug 10, 2026

[Bug]: TextBox widget raises AttributeError on ResizeEvent

first-contribution

topic: widgets/UI

Status: Open.

#32222 In matplotlib/matplotlib;

· KevoSoftworks opened on Aug 17, 2026

Fix ResizeEvent handling for TextBox

topic: widgets/UI

Status: Open (in progress).

matplotlib/matplotlibnumber 32225

#32225 In matplotlib/matplotlib;

· QuLogic opened on Aug 18, 2026

[Bug]: FT2Font.load_char() segfaults (null-pointer dereference)

first-contribution

topic: text/fonts

Status: Open.

#32224 In matplotlib/matplotlib;

· nevercodecorrect opened on Aug 18, 2026

ft2font: Make glyph loading failures more robust

topic: text/fonts

Status: Open (in progress).

matplotlib/matplotlibnumber 32226

#32226 In matplotlib/matplotlib;

· QuLogic opened on Aug 18, 2026

Fix the rounding of animation frame size to match the eventual canvas size

topic: animation

Status: Open (in progress).

matplotlib/matplotlibnumber 32194

#32194 In matplotlib/matplotlib;

· ayshih opened on Aug 10, 2026

[Bug]: ax.scatter([], [], clip_on=False, label=...) renders a ghost marker at the origin/corner when combined with specific styles/limits

first-contribution

status: confirmed bug

topic: plotting methods

Status: Open.

#32219 In matplotlib/matplotlib;

· daemonenstall opened on Aug 16, 2026

Fixed a bug with drawing an empty Collection

topic: collections and mappables

Status: Open (in progress).

matplotlib/matplotlibnumber 32228

#32228 In matplotlib/matplotlib;

· ayshih opened on Aug 18, 2026

ci: Force-enable long path support on AppVeyor

Status: Open (in progress).

matplotlib/matplotlibnumber 32242

#32242 In matplotlib/matplotlib;

· QuLogic opened on Aug 25, 2026