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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Please upgrade bundled Expat to 2.7.3 (e.g. for two key bugfixes)","articleBody":"# Bug report\n\n### Bug description:\n\nHello! 👋\n\n(Once the upgrade to Expat 2.7.2 is complete at #138998) please upgrade bundled Expat to 2.7.3 (e.g. for two key bugfixes).\n\n* GitHub release: https://github.com/libexpat/libexpat/releases/tag/R_2_7_3\n* Change log: https://github.com/libexpat/libexpat/blob/R_2_7_3/expat/Changes\n\nThe CPython issue for previous 2.7.2 was #138998 and the related merged main pull request was #138999, in case you want to have a look. (The `Dockerfile` from comment https://github.com/python/cpython/pull/123689#pullrequestreview-2280929950 could be of help with raising confidence in a bump pull request when going forward.)\n\nThanks in advance!\n\nCC @gpshead @StanFromIreland\n\n### CPython versions tested on:\n\n3.9, 3.10, 3.11, 3.12, 3.13, 3.14, 3.15, CPython main branch\n\n### Operating systems tested on:\n\nLinux, macOS, Windows, Other\n\n\n\u003c!-- gh-linked-prs --\u003e\n### Linked PRs\n* gh-139319\n* gh-139376\n* gh-139662\n* gh-139377\n* gh-139378\n* gh-139379\n* gh-139697\n\u003c!-- /gh-linked-prs --\u003e\n","author":{"url":"https://github.com/hartwork","@type":"Person","name":"hartwork"},"datePublished":"2025-09-24T22:21:15.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":12},"url":"https://github.com/139312/cpython/issues/139312"}