diff --git a/.github/workflows/android.yml b/.github/workflows/android.yml
index 65c5aaf7c..c1c5ca5a0 100644
--- a/.github/workflows/android.yml
+++ b/.github/workflows/android.yml
@@ -18,7 +18,7 @@ jobs:
           - 18
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - name: Build script
         env:
diff --git a/.github/workflows/arch-consistency-check.yml b/.github/workflows/arch-consistency-check.yml
index dc57879dc..83839e136 100644
--- a/.github/workflows/arch-consistency-check.yml
+++ b/.github/workflows/arch-consistency-check.yml
@@ -8,7 +8,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout xsimd
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
       - name: Install dependencies
         run: sudo apt install g++
       - name: Check architecture consistency
diff --git a/.github/workflows/benchmark.yml b/.github/workflows/benchmark.yml
index 3fc4dc029..cccb01a53 100644
--- a/.github/workflows/benchmark.yml
+++ b/.github/workflows/benchmark.yml
@@ -7,7 +7,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Setup
       run: cmake -B _build -DBUILD_BENCHMARK=ON -DBUILD_EXAMPLES=ON -DCMAKE_BUILD_TYPE=Release
     - name: Build
diff --git a/.github/workflows/cmake.yml b/.github/workflows/cmake.yml
index c6833f3bf..0ff2cd0a4 100644
--- a/.github/workflows/cmake.yml
+++ b/.github/workflows/cmake.yml
@@ -11,7 +11,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Configure build
       run: cmake -B _build -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=_install
     - name: Build
diff --git a/.github/workflows/cross-arm.yml b/.github/workflows/cross-arm.yml
index 9bc8cb75c..29db55df9 100644
--- a/.github/workflows/cross-arm.yml
+++ b/.github/workflows/cross-arm.yml
@@ -32,7 +32,7 @@ jobs:
       run: |
         sudo apt-get install ninja-build
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Setup
       run: |
         cmake -B _build \
diff --git a/.github/workflows/cross-ppc.yml b/.github/workflows/cross-ppc.yml
index 4da94c09e..7991ec15b 100644
--- a/.github/workflows/cross-ppc.yml
+++ b/.github/workflows/cross-ppc.yml
@@ -31,7 +31,7 @@ jobs:
       run: |
         sudo apt-get install ninja-build
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Setup
       run: |
         cmake -B _build \
diff --git a/.github/workflows/cross-rvv.yml b/.github/workflows/cross-rvv.yml
index e7274627c..878dada5e 100644
--- a/.github/workflows/cross-rvv.yml
+++ b/.github/workflows/cross-rvv.yml
@@ -42,7 +42,7 @@ jobs:
       run: |
         sudo apt-get -y -qq install ninja-build
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Setup
       run: >
         cmake -S . -B _build
diff --git a/.github/workflows/cross-sve.yml b/.github/workflows/cross-sve.yml
index 799c963cb..e9d45b81e 100644
--- a/.github/workflows/cross-sve.yml
+++ b/.github/workflows/cross-sve.yml
@@ -27,7 +27,7 @@ jobs:
       run: |
         sudo apt-get install ninja-build
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Setup
       run: |
         cmake -B _build \
diff --git a/.github/workflows/cxx-no-exceptions.yml b/.github/workflows/cxx-no-exceptions.yml
index ec4939386..e48ae31ca 100644
--- a/.github/workflows/cxx-no-exceptions.yml
+++ b/.github/workflows/cxx-no-exceptions.yml
@@ -4,7 +4,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Setup
       run: cmake -B _build -DBUILD_TESTS=ON -DDOWNLOAD_DOCTEST=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS=-fno-exceptions
     - name: Build
diff --git a/.github/workflows/cxx-versions.yml b/.github/workflows/cxx-versions.yml
index 08b297b52..06bd50698 100644
--- a/.github/workflows/cxx-versions.yml
+++ b/.github/workflows/cxx-versions.yml
@@ -10,7 +10,7 @@ jobs:
       matrix:
         cxx-version: [14, 17, 20]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Setup
       run: cmake -B _build -DBUILD_TESTS=ON -DDOWNLOAD_DOCTEST=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_STANDARD=${{matrix.cxx-version}}
     - name: Build
diff --git a/.github/workflows/doxygen.yml b/.github/workflows/doxygen.yml
index 910206321..00826b921 100644
--- a/.github/workflows/doxygen.yml
+++ b/.github/workflows/doxygen.yml
@@ -7,7 +7,7 @@ jobs:
   build:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Install dependencies
       run: sudo apt install doxygen python3-breathe python3-sphinx-rtd-theme
     - name: Render
diff --git a/.github/workflows/emscripten.yml b/.github/workflows/emscripten.yml
index 619690589..988c348df 100644
--- a/.github/workflows/emscripten.yml
+++ b/.github/workflows/emscripten.yml
@@ -9,7 +9,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v6
 
       - uses: mamba-org/setup-micromamba@v2
         with:
diff --git a/.github/workflows/emulated.yml b/.github/workflows/emulated.yml
index b7fcad4a0..272ec2611 100644
--- a/.github/workflows/emulated.yml
+++ b/.github/workflows/emulated.yml
@@ -18,7 +18,7 @@ jobs:
           - { compiler: 'g++',   size: '512'}
     steps:
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Install mamba
       uses: mamba-org/setup-micromamba@v1
       with:
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
index 3ee1d5c4c..f86cf2256 100644
--- a/.github/workflows/linux.yml
+++ b/.github/workflows/linux.yml
@@ -56,7 +56,7 @@ jobs:
         CXX=clang++-$LLVM_VERSION
         echo "CXX=$CXX" >> $GITHUB_ENV
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Install mamba
       uses: mamba-org/setup-micromamba@v2
       with:
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index bbf28392f..686d7f1c0 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -14,7 +14,7 @@ jobs:
     runs-on: macos-${{ matrix.os }}
     name: 'macos-${{ matrix.os }}'
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v6
     - name: Setup
       run: cmake -B _build -DBUILD_TESTS=ON -DDOWNLOAD_DOCTEST=ON -DBUILD_BENCHMARK=ON -DBUILD_EXAMPLES=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_OSX_ARCHITECTURES="arm64;x86_64"
     - name: Build
diff --git a/.github/workflows/sanitizer.yml b/.github/workflows/sanitizer.yml
index ca2a70c7b..520be087f 100644
--- a/.github/workflows/sanitizer.yml
+++ b/.github/workflows/sanitizer.yml
@@ -22,7 +22,7 @@ jobs:
       CXX: clang++-${{ matrix.llvm-version }}
     steps:
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Setup compiler
       run: |
           wget https://apt.llvm.org/llvm.sh
diff --git a/.github/workflows/style-check.yml b/.github/workflows/style-check.yml
index 00a55d952..c71a40182 100644
--- a/.github/workflows/style-check.yml
+++ b/.github/workflows/style-check.yml
@@ -8,7 +8,7 @@ jobs:
     name: Format check
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
     - run: sudo apt install clang-format
     - run: |
         git fetch origin ${{ github.event.pull_request.base.sha }}
@@ -18,7 +18,7 @@ jobs:
     runs-on: ubuntu-latest
     name: Check inline keyword usage
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v6
     - run: sudo apt install clang-tools
     - run: sh ./test/check_inline_specifier.sh .
 
diff --git a/.github/workflows/windows.yml b/.github/workflows/windows.yml
index 3fae59208..ce2653286 100644
--- a/.github/workflows/windows.yml
+++ b/.github/workflows/windows.yml
@@ -41,7 +41,7 @@ jobs:
         python3 -m pip install --upgrade pip setuptools wheel
         python3 -m pip install ninja
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Setup
       run: cmake -B _build -DBUILD_TESTS=ON -DDOWNLOAD_DOCTEST=ON -DBUILD_BENCHMARK=ON -DBUILD_EXAMPLES=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_FLAGS="${{ matrix.sys.flags }}" -G Ninja
     - name: Build
@@ -76,7 +76,7 @@ jobs:
             cmake:p
             ninja:p
       - name: Checkout xsimd
-        uses: actions/checkout@v2
+        uses: actions/checkout@v6
       - name: Configure
         run: cmake -B _build -DBUILD_TESTS=ON -DBUILD_BENCHMARK=ON -DBUILD_EXAMPLES=ON -DCMAKE_BUILD_TYPE=Release -DDOWNLOAD_DOCTEST=ON -G Ninja
       - name: Build
@@ -100,7 +100,7 @@ jobs:
         python3 -m pip install --upgrade pip setuptools wheel
         python3 -m pip install ninja
     - name: Checkout xsimd
-      uses: actions/checkout@v3
+      uses: actions/checkout@v6
     - name: Setup
       run: cmake -B _build -DBUILD_TESTS=ON -DDOWNLOAD_DOCTEST=ON -DBUILD_BENCHMARK=ON -DBUILD_EXAMPLES=ON -DCMAKE_BUILD_TYPE=Release -G Ninja
     - name: Build