New GitHub issue #119241 from colesbury:<br>

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We should add a "HOWTO" guide for C API extension authors covering how to support the free-threaded build.

See also https://peps.python.org/pep-0703/#how-to-teach-this
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<a href="https://github.com/python/cpython/issues/119241">View on GitHub</a>
<p>Labels: docs, topic-free-threading</p>
<p>Assignee: colesbury</p>