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[Bug]: AxesImage redraws ~2x slower in 3.11 than in 3.10

first-contribution

Performance

topic: images

Status: Open.

#32240 In matplotlib/matplotlib;

· zekebarger opened on Aug 24, 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

·  

v3.11.2

[Bug]: TextBox widget raises AttributeError on ResizeEvent

first-contribution

topic: widgets/UI

Status: Open.

#32222 In matplotlib/matplotlib;

· KevoSoftworks opened on Aug 17, 2026

·  

v3.11.2

[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

·  

v3.11.2

[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

·  

v3.11.2

macOS Rework Umbrella

OS: Apple

Status: Open.

#32176 In matplotlib/matplotlib;

· iccir opened on Aug 7, 2026

[Bug]: Using rasterized=True with zorder makes the generated SVG have wrong axes layer hierarchy

backend: svg

first-contribution

Status: Open.

#32174 In matplotlib/matplotlib;

· ahmedselim2017 opened on Aug 6, 2026

[MNT]: Clarify web browser policy

Maintenance

Status: Open.

#32165 In matplotlib/matplotlib;

· iccir opened on Aug 3, 2026

[Bug]: Font lookup when rendering math text

topic: text/mathtext

Status: Open.

#32164 In matplotlib/matplotlib;

· dnicolodi opened on Aug 3, 2026

·  

v3.11.2

[Tracker] : Improve type annotation coverage

topic: typing

Status: Open.

#32157 In matplotlib/matplotlib;

· Aniketsy opened on Jul 31, 2026

[Doc]: Rework Hyperlinks example

Documentation

Status: Open.

#32146 In matplotlib/matplotlib;

· timhoffm opened on Jul 31, 2026

[Bug]: a scalar-only custom scale silently blanks all 3D data instead of drawing it

topic: transforms and scales

Status: Open.

#32129 In matplotlib/matplotlib;

· thc1006 opened on Jul 28, 2026