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Merge 3.11 branch into main#31878

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tacaswell merged 142 commits into
matplotlib:mainfrom
QuLogic:merge311
Jun 12, 2026
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Merge 3.11 branch into main#31878
tacaswell merged 142 commits into
matplotlib:mainfrom
QuLogic:merge311

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@QuLogic

@QuLogic QuLogic commented Jun 12, 2026

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PR summary

We need this to get the correct version after the tag, but also to ensure the version switcher is correct and doesn't mark the docs as unstable.

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PR checklist

QuLogic and others added 30 commits May 12, 2026 16:25
DOC: Prepare API changes for 3.11
…t-of-pr-31673-on-v3.11.x

Backport PR matplotlib#31673 on branch v3.11.x (DOC: Explain the technical background of autoscaling)
…t-of-pr-31677-on-v3.11.x

Backport PR matplotlib#31677 on branch v3.11.x (MNT: Make a note that setuptools-scm can be unpinned)
…t-of-pr-31672-on-v3.11.x

Backport PR matplotlib#31672 on branch v3.11.x (Backport an additional fix to qhull printf strings)
…t-of-pr-31497-on-v3.11.x

Backport PR matplotlib#31497 on branch v3.11.x (DOC: Clarify SVG hyperlink behavior in gallery hyperlinks example)
…t-of-pr-31666-on-v3.11.x

Backport PR matplotlib#31666 on branch v3.11.x (plt.stairs: fix unit handling for orientation="horizontal")
…t-of-pr-31696-on-v3.11.x

Backport PR matplotlib#31696 on branch v3.11.x (DOC: correct some outdated points in Artist tutorial)
…t-of-pr-31704-on-v3.11.x

Backport PR matplotlib#31704 on branch v3.11.x (DOC: Remove pyplot text example)
…t-of-pr-31705-on-v3.11.x

Backport PR matplotlib#31705 on branch v3.11.x (DOC: Remove "Multiple lines using pyplot")
…t-of-pr-31721-on-v3.11.x

Backport PR matplotlib#31721 on branch v3.11.x (Improve some example titles.)
…ckend autodetection fallback. (matplotlib#31729)

Co-authored-by: Tim Hoffmann <2836374+timhoffm@users.noreply.github.com>
…t-of-pr-31587-on-v3.11.x

Backport PR matplotlib#31587 on branch v3.11.x (FIX: scatter with ls="" crashes on PDF savefig)
…t-of-pr-31692-on-v3.11.x

Backport PR matplotlib#31692 on branch v3.11.x (DOC: Remove Tick object details from artist tutorial)
QuLogic and others added 24 commits June 5, 2026 21:59
DOC: Prepare What's New page for 3.11
…t-of-pr-31844-on-v3.11.x

Backport PR matplotlib#31844 on branch v3.11.x (FIX: snap near-integer arc windings to a full circle on polar plots (matplotlib#20388, matplotlib#26972))
…t-of-pr-31539-on-v3.11.x

Backport PR matplotlib#31539 on branch v3.11.x (DOC: Build against 3.11.0 of mpl-sphinx-theme)
…arameter of plot functions

Also backport PR matplotlib#31862 to fix the build.

Co-authored-by: Ruth Comer <ruth.comer@metoffice.gov.uk>
…t-of-pr-31482-on-v3.11.x

Backport PR matplotlib#31482 on branch v3.11.x (TYP: Add type information to the data parameter of plot functions)
…t-of-pr-31859-on-v3.11.x

Backport PR matplotlib#31859 on branch v3.11.x (FIX: reject out-of-range charmap index in FT2Font.set_charmap)
…t-of-pr-31769-on-v3.11.x

Backport PR matplotlib#31769 on branch v3.11.x (Fix several MacOS memory management bugs)
…t-of-pr-31870-on-v3.11.x

Backport PR matplotlib#31870 on branch v3.11.x (Update axes_units.py)
…t-of-pr-31868-on-v3.11.x

Backport PR matplotlib#31868 on branch v3.11.x (DOC: Move errorbar examples to the statistics sections)
…t-of-pr-31706-on-v3.11.x

Backport PR matplotlib#31706 on branch v3.11.x (Fix clabel manual index)
The largest change within this release is a complete overhaul of text
and font processing. Through the use of libraqm [1], HarfBuzz [2],
SheenBidi [3], and an updated release of FreeType [4], all text should
now support modern font features, enabling full internationalization
in all languages. Not all features of these libraries are supported
yet, but we expect this work to enable further improvements in an
easier manner.

Outside of text handling, there are several improvements to 3D Axes,
performance, new accessible colour sequences, flexible figure
management, and more. See the release notes for more information [5].

[1] https://github.com/HOST-Oman/libraqm/
[2] https://harfbuzz.github.io/
[3] https://github.com/Tehreer/SheenBidi
[4] https://freetype.org/
[5] https://matplotlib.org/3.11.0/release/prev_whats_new/whats_new_3.11.0.html
@QuLogic QuLogic added this to the v3.12.0 milestone Jun 12, 2026
@QuLogic

QuLogic commented Jun 12, 2026

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Note, most of this was reviewed in merged PRs to the v3.11.x branch.

It also should not be squash merged.

@tacaswell tacaswell merged commit 8765417 into matplotlib:main Jun 12, 2026
43 of 46 checks passed
@QuLogic QuLogic deleted the merge311 branch June 12, 2026 18:43
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