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gh-144363: Update bundled libexpat to 2.7.4#144365

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encukou merged 5 commits intopython:mainfrom
StanFromIreland:libexpat-2.7.4
Feb 5, 2026
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gh-144363: Update bundled libexpat to 2.7.4#144365
encukou merged 5 commits intopython:mainfrom
StanFromIreland:libexpat-2.7.4

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@StanFromIreland StanFromIreland commented Jan 31, 2026 •
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@bedevere-app bedevere-app bot mentioned this pull request Jan 31, 2026
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@StanFromIreland StanFromIreland added needs backport to 3.10 only security fixes needs backport to 3.11 only security fixes needs backport to 3.12 only security fixes needs backport to 3.13 bugs and security fixes needs backport to 3.14 bugs and security fixes labels Jan 31, 2026
@gpshead gpshead self-assigned this Feb 1, 2026
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confirmed this matches expat 2.7.4 - i committed a minor tweak to keep the COPYING file in sync.

@gpshead gpshead added the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Feb 1, 2026
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🤖 New build scheduled with the buildbot fleet by @gpshead for commit c305ac7 🤖

Results will be shown at:

https://buildbot.python.org/all/#/grid?branch=refs%2Fpull%2F144365%2Fmerge

If you want to schedule another build, you need to add the 🔨 test-with-buildbots label again.

@bedevere-bot bedevere-bot removed the 🔨 test-with-buildbots Test PR w/ buildbots; report in status section label Feb 1, 2026
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Modules/expat/COPYING
@@ -1,5 +1,5 @@
Copyright (c) 1998-2000 Thai Open Source Software Center Ltd and Clark Cooper
Copyright (c) 2001-2022 Expat maintainers
Copyright (c) 2001-2025 Expat maintainers
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Should Doc/license.rst change as well?

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probably so if it correctly contains a copy of this one. if we haven't automated updating that from the various scattered license sources of truth that could be a followup rather than blocking this. the listed date extension is not material to a license's validity.

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I propose we remove the double maintenance burden, see #144488.

@StanFromIreland StanFromIreland mentioned this pull request Feb 4, 2026
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@encukou encukou merged commit d5cb9f6 into python:main Feb 5, 2026
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miss-islington-app bot commented Feb 5, 2026

Thanks @StanFromIreland for the PR, and @encukou for merging it 🌮🎉.. I'm working now to backport this PR to: 3.10, 3.11, 3.12, 3.13, 3.14.
🐍🍒⛏🤖

miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Feb 5, 2026
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pythongh-144363: Update bundled libexpat to 2.7.4 (pythonGH-144365)
61ac68f 
* Update to 2.7.4

* update expat license copyright year to match and a pedantic #define

* include COPYING update in refresh.sh

* Update checksum for copying

---------
(cherry picked from commit d5cb9f6)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Feb 5, 2026
@StanFromIreland @gpshead
@encukou @miss-islington
pythongh-144363: Update bundled libexpat to 2.7.4 (pythonGH-144365)
90e913e 
* Update to 2.7.4

* update expat license copyright year to match and a pedantic #define

* include COPYING update in refresh.sh

* Update checksum for copying

---------
(cherry picked from commit d5cb9f6)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
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bedevere-app bot commented Feb 5, 2026

GH-144499 is a backport of this pull request to the 3.14 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.14 bugs and security fixes label Feb 5, 2026
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miss-islington-app bot commented Feb 5, 2026

Sorry, @StanFromIreland and @encukou, I could not cleanly backport this to 3.11 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker d5cb9f6a9b6f48cc08c4422259498d4fd023357a 3.11

@miss-islington-app miss-islington-app bot assigned encukou and unassigned gpshead Feb 5, 2026
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bedevere-app bot commented Feb 5, 2026

GH-144500 is a backport of this pull request to the 3.13 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.13 bugs and security fixes label Feb 5, 2026
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miss-islington-app bot commented Feb 5, 2026

Sorry, @StanFromIreland and @encukou, I could not cleanly backport this to 3.10 due to a conflict.
Please backport using cherry_picker on command line.

cherry_picker d5cb9f6a9b6f48cc08c4422259498d4fd023357a 3.10

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bedevere-app bot commented Feb 5, 2026

GH-144501 is a backport of this pull request to the 3.12 branch.

@bedevere-app bedevere-app bot removed the needs backport to 3.12 only security fixes label Feb 5, 2026
miss-islington pushed a commit to miss-islington/cpython that referenced this pull request Feb 5, 2026
@StanFromIreland @gpshead
@encukou @miss-islington
pythongh-144363: Update bundled libexpat to 2.7.4 (pythonGH-144365)
59e114f 
* Update to 2.7.4

* update expat license copyright year to match and a pedantic #define

* include COPYING update in refresh.sh

* Update checksum for copying

---------
(cherry picked from commit d5cb9f6)

Co-authored-by: Stan Ulbrych <89152624+StanFromIreland@users.noreply.github.com>
Co-authored-by: Gregory P. Smith <greg@krypto.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
@StanFromIreland StanFromIreland deleted the libexpat-2.7.4 branch February 5, 2026 13:21
encukou added a commit to encukou/cpython that referenced this pull request Feb 5, 2026
@StanFromIreland @gpshead @encukou
pythongh-144363: Update bundled libexpat to 2.7.4 (python#144365)
aa549fb 
* Update to 2.7.4

* update expat license copyright year to match and a pedantic #define

* include COPYING update in refresh.sh

* Update checksum for copying

---------

Co-authored-by: Gregory P. Smith <greg@krypto.org>
Co-authored-by: Petr Viktorin <encukou@gmail.com>
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