Adopt CMake 4.4 policies

.claude/skills/sqlitecpp-build-cmake/SKILL.md

@@ -44,5 +44,5 @@ description: Build SQLiteCpp with CMake. Use for CMake builds, tests, options, o
 - If the submodule is needed: `git submodule update --init --recursive`.
 - SQLiteCpp requires CMake 3.16 or newer and C++17 or newer.
 - Keep the minimum CMake version deliberate and update CMake configuration and documentation together.
-- The `...4.0` policy maximum in `cmake_minimum_required` does not cap the supported CMake version;
-  it opts into policy behavior through CMake 4.0 while still allowing newer CMake releases.
+- The `...4.4` policy maximum in `cmake_minimum_required` does not cap the supported CMake version;
+  it opts into policy behavior through CMake 4.4 while still allowing newer CMake releases.

.github/workflows/cmake_policy_4_4.yml

@@ -0,0 +1,73 @@
+name: Latest CMake / 4.4 policies
+
+on: [push, pull_request]
+
+jobs:
+  build:
+    name: ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os:
+          - ubuntu-latest
+          - windows-latest
+          - macos-latest
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          submodules: recursive
+
+      - uses: actions/setup-python@v6
+        with:
+          python-version: "3.x"
+
+      - name: Install latest CMake
+        run: python -m pip install --upgrade cmake
+
+      - name: Check CMake version
+        run: cmake --version
+
+      - name: Configure SQLiteCpp
+        run: >
+          cmake
+          -S .
+          -B build/main
+          -DCMAKE_BUILD_TYPE=Debug
+          -DSQLITECPP_BUILD_TESTS=ON
+          -DSQLITECPP_BUILD_EXAMPLES=ON
+          -DSQLITECPP_RUN_CPPCHECK=OFF
+          -DSQLITECPP_RUN_CPPLINT=OFF
+
+      - name: Build SQLiteCpp
+        run: cmake --build build/main --config Debug
+
+      - name: Test SQLiteCpp
+        run: ctest --test-dir build/main --build-config Debug --output-on-failure
+
+      - name: Configure C++20 consumer
+        run: >
+          cmake
+          -S tests/consumer
+          -B build/consumer
+          -DCMAKE_BUILD_TYPE=Debug
+          -DSQLITECPP_CXX_STANDARD=17
+          -DCONSUMER_CXX_STANDARD=20
+
+      - name: Build consumer
+        run: cmake --build build/consumer --config Debug
+
+      - name: Test consumer
+        run: ctest --test-dir build/consumer --build-config Debug --output-on-failure
+
+      - name: Configure subdirectory example
+        run: >
+          cmake
+          -S examples/example2
+          -B build/example2
+          -DCMAKE_BUILD_TYPE=Debug
+
+      - name: Build subdirectory example
+        run: cmake --build build/example2 --config Debug

CHANGELOG.md

@@ -11,6 +11,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - Require CMake 3.16 or newer
 - Require C++17 and test C++20 compatibility
+- Adopt CMake 4.4 policies
 
 ## [3.4.0] - 2026-09-21
 

CMakeLists.txt

@@ -4,7 +4,7 @@
 #
 # Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
 # or copy at http://opensource.org/licenses/MIT)
-cmake_minimum_required(VERSION 3.16...4.0)
+cmake_minimum_required(VERSION 3.16...4.4)
 list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake") # custom CMake modules like FindSQLiteCpp
 project(SQLiteCpp VERSION 4.0.0)
 

examples/example2/CMakeLists.txt

@@ -4,7 +4,7 @@
 #
 # Distributed under the MIT License (MIT) (See accompanying file LICENSE.txt
 # or copy at http://opensource.org/licenses/MIT) 
-cmake_minimum_required(VERSION 3.16...4.0)
+cmake_minimum_required(VERSION 3.16...4.4)
 project(SQLiteCpp_Example VERSION 2.0)
 
 # SQLiteCpp requires a C++17 compiler

tests/consumer/CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.16...4.0)
+cmake_minimum_required(VERSION 3.16...4.4)
 project(SQLiteCpp_Consumer LANGUAGES CXX)
 
 set(SQLITECPP_CXX_STANDARD 17 CACHE STRING "C++ standard used to build SQLiteCpp")