From fbdc54321c96a83c4d577dc9c29151e555b69a6c Mon Sep 17 00:00:00 2001
From: Yilei Yang <yilei@anthropic.com>
Date: Tue, 24 Feb 2026 06:28:09 +0000
Subject: [PATCH] Add Python 3.14 free threaded mode support.

---
 .github/workflows/ci-bazel.yml | 2 +-
 .github/workflows/python.yml   | 6 +++---
 python/_re2.cc                 | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/.github/workflows/ci-bazel.yml b/.github/workflows/ci-bazel.yml
index ca9511967..4a93e8b6c 100644
--- a/.github/workflows/ci-bazel.yml
+++ b/.github/workflows/ci-bazel.yml
@@ -14,7 +14,7 @@ jobs:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
         # Keep in sync with python.yml.
-        ver: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        ver: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
     steps:
       - uses: actions/checkout@v4.2.2
       - uses: bazel-contrib/setup-bazel@0.15.0
diff --git a/.github/workflows/python.yml b/.github/workflows/python.yml
index 55aee2c80..f4cb823d2 100644
--- a/.github/workflows/python.yml
+++ b/.github/workflows/python.yml
@@ -30,7 +30,7 @@ jobs:
         os: [manylinux_2_28]
         # Keep in sync with ci-bazel.yml and list below.
         # Also, when bumping the minimum version, update ../../python/setup.py.
-        ver: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        ver: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
     env:
       BAZELISK_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       PYTHON: /usr/local/bin/python${{ matrix.ver }}
@@ -86,7 +86,7 @@ jobs:
         # TODO(rsc): Stop cross-compiling now that we don't use macOS 12.
         # instead, specify `-large` suffix on X64 and `-xlarge` suffix on ARM64.
         os: [13, 14, 15, 26]
-        ver: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        ver: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
     env:
       BAZELISK_GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       BAZEL_CPU: darwin_${{ matrix.arch.bazel-name }}
@@ -149,7 +149,7 @@ jobs:
           - { name: X86,   bazel-name: x64_x86, python-name: win32 }
           - { name: X64,   bazel-name: x64,     python-name: win_amd64 }
           - { name: ARM64, bazel-name: arm64,   python-name: win_arm64 }
-        ver: ['3.10', '3.11', '3.12', '3.13', '3.14']
+        ver: ['3.10', '3.11', '3.12', '3.13', '3.14', '3.14t']
         exclude:
           - arch: { name: ARM64, bazel-name: arm64, python-name: win_arm64 }
             ver: '3.9'
diff --git a/python/_re2.cc b/python/_re2.cc
index 22f092b23..8de3b3b67 100644
--- a/python/_re2.cc
+++ b/python/_re2.cc
@@ -253,7 +253,7 @@ class Filter {
   std::unique_ptr<RE2::Set> set_;
 };
 
-PYBIND11_MODULE(_re2, module) {
+PYBIND11_MODULE(_re2, module, py::mod_gil_not_used()) {
   // Translate exceptions thrown by py::pybind11_fail() into Python.
   py::register_local_exception<std::runtime_error>(module, "Error");