This issue tracks work for enablement of Python 3.15 / 3.15t. Similar to: #156856 (3.14) and #130249 (3.13).

Python 3.15 release schedule: PEP 790. Beta 1 has already been released, so the ABI is stable enough that packages can start building/publishing 3.15 wheels.

Updated May 19, 2026

Python 3.15 CI:

• Migrate 3.14 CI builds -> 3.15

Python 3.15 CI & torch.compile:

• Add support for 3.15 in torch.compile cc @malfet @pytorch/pytorch-dev-infra @albanD @williamwen42

Current Status — Source build

Current Status — Nightlies and Release branch

Outstanding work

• Add Python NoGIL (free-threaded) support in CI

Breakdown of steps to support Python 3.15:

• PyTorch builds from source on 3.15
• Try wheel Linux builds with Python 3.15
• Nightly cp315 wheels available for all platforms (waiting until final cpython rc)
• torch.compile support for 3.15
• PyTorch builds from source with free-threaded CPython
• cp315t (free-threaded) nightly wheels available

Python 3.15 CD

• [CD] Add CPython-3.15b1 #182954
• Linux py 3.15 wheel builds #184600
• ROCm: Python 3.15 wheel builds blocked by composable_kernel using removed importlib.abc.Loader.load_module() #184900
• XPU: Triton wheel builds for Python 3.15 are currently broken; skipped in build-triton-wheel.yml #184901
• Nightly Windows wheels
• Nightly macOS wheels
• Nightly aarch64 wheels

cc @malfet @seemethere @pytorch/pytorch-dev-infra @albanD

Versions

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