v0.4.0 per changelog

Author: networmix

.github/workflows/release.yml

@@ -27,10 +27,10 @@ jobs:
       # Build wheels using cibuildwheel
       # ENV variables control the build (architectures, python versions)
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.21.3
+        uses: pypa/cibuildwheel@v3.3.1
         env:
           # Build for Python 3.11+
-          CIBW_BUILD: "cp311-* cp312-* cp313-*"
+          CIBW_BUILD: "cp311-* cp312-* cp313-* cp314-* cp314t-*"
           # Skip PyPy, musllinux, and 32-bit Linux
           CIBW_SKIP: "pp* *-musllinux_* *-manylinux_i686"
 

.github/workflows/tests.yml

@@ -14,7 +14,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ubuntu-22.04, macos-latest]
-        python-version: ["3.11", "3.12", "3.13"]
+        python-version: ["3.11", "3.12", "3.13", "3.14"]
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-python@v5

CHANGELOG.md

@@ -5,6 +5,17 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.0] - 2026-02-17
+
+### Added
+
+- **Python 3.14**: Add support for Python 3.14 in CI tests, wheel builds, and packaging.
+- **Free Threading**: Declare free-threading compatibility (`py::mod_gil_not_used`) for Python 3.13t/3.14t builds. Build and publish free-threaded (`cp314t`) wheels.
+
+### Changed
+
+- **CI**: Upgrade cibuildwheel from v2 to v3.3.1 for Python 3.14 wheel builds.
+
 ## [0.3.6] - 2026-02-17
 
 ### Fixed

Makefile

@@ -11,8 +11,8 @@
 VENV_BIN := $(PWD)/venv/bin
 
 # PY_BEST: scan for newest supported Python (used when creating new venvs)
-# Supports 3.11-3.13 to match requires-python >=3.11
-PY_BEST := $(shell for v in 3.13 3.12 3.11; do command -v python$$v >/dev/null 2>&1 && { echo python$$v; exit 0; }; done; command -v python3 2>/dev/null || command -v python 2>/dev/null)
+# Supports 3.11-3.14 to match requires-python >=3.11
+PY_BEST := $(shell for v in 3.14 3.13 3.12 3.11; do command -v python$$v >/dev/null 2>&1 && { echo python$$v; exit 0; }; done; command -v python3 2>/dev/null || command -v python 2>/dev/null)
 
 # PY_PATH: active python3/python on PATH (respects CI setup-python and activated venvs)
 PY_PATH := $(shell command -v python3 2>/dev/null || command -v python 2>/dev/null)

bindings/python/module.cpp

@@ -87,7 +87,7 @@ static std::span<const T> as_span(const py::array& arr, const char* name) {
   return std::span<const T>(static_cast<const T*>(buf.ptr), static_cast<std::size_t>(buf.size));
 }
 
-PYBIND11_MODULE(_netgraph_core, m) {
+PYBIND11_MODULE(_netgraph_core, m, py::mod_gil_not_used()) {
   m.doc() = "NetGraph-Core C++ bindings";
 
   py::enum_<EdgeTieBreak>(m, "EdgeTieBreak")

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "scikit_build_core.build"
 
 [project]
 name = "netgraph-core"
-version = "0.3.6"
+version = "0.4.0"
 description = "C++ implementation of graph algorithms for network flow analysis and traffic engineering with Python bindings"
 readme = "README.md"
 requires-python = ">=3.11"
@@ -21,6 +21,7 @@ classifiers = [
     "Programming Language :: Python :: 3.11",
     "Programming Language :: Python :: 3.12",
     "Programming Language :: Python :: 3.13",
+    "Programming Language :: Python :: 3.14",
     "Programming Language :: Python :: 3 :: Only",
     "Programming Language :: C++",
     "Programming Language :: Python :: Implementation :: CPython",