# Dropping Python 3.13t (free-threaded) support in nightlies and in the future PyTorch 2.13 release

**URL:** https://dev-discuss.pytorch.org/t/dropping-python-3-13t-free-threaded-support-in-nightlies-and-in-the-future-pytorch-2-13-release/3386
**Category:** release/packaging
**Created:** [May 14, 2026, 2:18pm UTC](https://dev-discuss.pytorch.org/t/dropping-python-3-13t-free-threaded-support-in-nightlies-and-in-the-future-pytorch-2-13-release/3386 "2026-05-14T14:18:24Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![atalman](https://yyz2.discourse-cdn.com/flex036/user_avatar/dev-discuss.pytorch.org/atalman/32/1857_2.png) [@atalman](https://dev-discuss.pytorch.org/u/atalman)
#### Post date: [May 14, 2026, 2:18pm UTC](https://dev-discuss.pytorch.org/t/dropping-python-3-13t-free-threaded-support-in-nightlies-and-in-the-future-pytorch-2-13-release/3386/1 "2026-05-14T14:18:24Z")

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Hi all,

We want to give the community a heads-up that **PyTorch is dropping CPython 3.13t (free-threaded / no-GIL) support in nightlies effective immediately, and it will not be included in the upcoming**  **PyTorch 2.13 release.**

**Background**

The upstream pypa/manylinux project removed CPython 3.13t from its Docker images on 2026-05-07 (see pytorch/pytorch#182949 ([[CD] Drop CPython 3.13t from binary build matrix (manylinux upstream removed it 2026-05-07) · Issue #182949 · pytorch/pytorch · GitHub](https://github.com/pytorch/pytorch/issues/182949))). The manylinux maintainers dropped 3.13t because it was an experimental free-threaded build, and CPython 3.14t is now the stable, non-experimental free-threaded variant.

Because our manylinux-based wheel builds rely on /opt/python/cp313-cp313t/… from those upstream images, we can no longer produce 3.13t wheels for nightlies or for the 2.13 release.

**What**  **this**  **means**

- cp313t wheels will no longer be published in nightlies, and will not be published on PyPI or the PyTorch download index for the 2.13 release (CPU, CUDA, ROCm, XPU).

- Users who need a free-threaded build should plan to move to **CPython**  **3.14t** , which we intend to support going forward.

- Standard (GIL-enabled) CPython 3.13 wheels are **not affected** and will continue to be shipped as usual.

**Action items for downstream / users**

- If you are currently testing against torch on 3.13t (including against nightlies), please migrate your CI to 3.14t.

- If you maintain a project that depends on PyTorch’s 3.13t wheels, plan accordingly for the 2.13 cut.

Tracking issue: [[CD] Drop CPython 3.13t from binary build matrix (manylinux upstream removed it 2026-05-07) · Issue #182949 · pytorch/pytorch · GitHub](https://github.com/pytorch/pytorch/issues/182949)

Please reply here with any questions or concerns.