diff --git a/.github/workflows/clang-c++11.yml b/.github/workflows/clang-c++11.yml
deleted file mode 100644
index 1ed503178..000000000
--- a/.github/workflows/clang-c++11.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-name: clang-c++11
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-
-  build-clang-cpp11-linux-stl:
-    name: Clang C++11 Linux - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=11 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp11-linux-no-stl:
-    name: Clang C++11 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=11 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
\ No newline at end of file
diff --git a/.github/workflows/clang-c++14.yml b/.github/workflows/clang-c++14.yml
deleted file mode 100644
index a8e26999e..000000000
--- a/.github/workflows/clang-c++14.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-name: clang-c++14
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-
-  build-clang-cpp14-linux-stl:
-    name: Clang C++14 Linux - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=14 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp14-linux-no-stl:
-    name: Clang C++14 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=14 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
\ No newline at end of file
diff --git a/.github/workflows/clang-c++17.yml b/.github/workflows/clang-c++17.yml
deleted file mode 100644
index ff00ee599..000000000
--- a/.github/workflows/clang-c++17.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-name: clang-c++17
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-
-  build-clang-cpp17-linux-stl:
-    name: Clang C++17 Linux - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=17 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp17-linux-no-stl:
-    name: Clang C++17 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=17 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
\ No newline at end of file
diff --git a/.github/workflows/clang-c++20.yml b/.github/workflows/clang-c++20.yml
deleted file mode 100644
index 362c32971..000000000
--- a/.github/workflows/clang-c++20.yml
+++ /dev/null
@@ -1,184 +0,0 @@
-name: clang-c++20
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-
-  build-clang-cpp20-linux-no-stl:
-    name: Clang C++20 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    # Temporary fix. See https://github.com/actions/runner-images/issues/8659
-    - name: Install newer Clang
-      run: |
-        wget https://apt.llvm.org/llvm.sh
-        chmod +x ./llvm.sh
-        sudo ./llvm.sh 17
-
-    - name: Build
-      run: |
-        export CC=clang-17
-        export CXX=clang++-17
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=20 ./
-        clang-17 --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp20-linux-stl-force-cpp03:
-    name: Clang C++20 Linux - STL - Force C++03
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    # Temporary fix. See https://github.com/actions/runner-images/issues/8659
-    - name: Install newer Clang
-      run: |
-        wget https://apt.llvm.org/llvm.sh
-        chmod +x ./llvm.sh
-        sudo ./llvm.sh 17
-
-    - name: Build
-      run: |
-        export CC=clang-17
-        export CXX=clang++-17
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=20 ./
-        clang-17 --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp20-linux-no-stl-force-cpp03:
-    name: Clang C++20 Linux - No STL - Force C++03
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    # Temporary fix. See https://github.com/actions/runner-images/issues/8659
-    - name: Install newer Clang
-      run: |
-        wget https://apt.llvm.org/llvm.sh
-        chmod +x ./llvm.sh
-        sudo ./llvm.sh 17
-
-    - name: Build
-      run: |
-        export CC=clang-17
-        export CXX=clang++-17
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=20 ./
-        clang-17 --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp20-osx-stl:
-    name: Clang C++20 OSX - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [macos-12]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=20 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp20-osx-no-stl:
-    name: Clang C++20 OSX - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [macos-12]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=20 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp20-osx-stl-force-cpp03:
-    name: Clang C++20 OSX - STL - Force C++03
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [macos-12]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=20 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-clang-cpp20-osx-no-stl-force-cpp03:
-    name: Clang C++20 OSX - No STL - Force C++03
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [macos-12]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export CC=clang
-        export CXX=clang++
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        cmake -D BUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=20 ./
-        clang --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
diff --git a/.github/workflows/gcc-c++11.yml b/.github/workflows/gcc-c++11.yml
deleted file mode 100644
index 9a7c7b1a0..000000000
--- a/.github/workflows/gcc-c++11.yml
+++ /dev/null
@@ -1,54 +0,0 @@
-name: gcc-c++11
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-  
-  build-gcc-cpp11-linux-stl:
-    name: GCC C++11 Linux - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        git fetch
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=11 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-gcc-cpp11-linux-no-stl:
-    name: GCC C++11 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        git fetch
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=11 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
diff --git a/.github/workflows/gcc-c++14.yml b/.github/workflows/gcc-c++14.yml
deleted file mode 100644
index 3d20beb3d..000000000
--- a/.github/workflows/gcc-c++14.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-name: gcc-c++14
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-
-  build-gcc-cpp14-linux-stl:
-    name: GCC C++14 Linux - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=14 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-gcc-cpp14-linux-no-stl:
-    name: GCC C++14 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=14 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
\ No newline at end of file
diff --git a/.github/workflows/gcc-c++17.yml b/.github/workflows/gcc-c++17.yml
deleted file mode 100644
index ca3dc8b25..000000000
--- a/.github/workflows/gcc-c++17.yml
+++ /dev/null
@@ -1,52 +0,0 @@
-name: gcc-c++17
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-
-  build-gcc-cpp17-linux-stl:
-    name: GCC C++17 Linux - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=17 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-gcc-cpp17-linux-no-stl:
-    name: GCC C++17 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=17 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
diff --git a/.github/workflows/gcc-c++20.yml b/.github/workflows/gcc-c++20.yml
deleted file mode 100644
index ecfcf9368..000000000
--- a/.github/workflows/gcc-c++20.yml
+++ /dev/null
@@ -1,96 +0,0 @@
-name: gcc-c++20
-on:
-  push:
-    branches: [ master, development, pull-request/* ]
-  pull_request:
-    branches: [ master, pull-request/* ]
-
-jobs:
-
-  build-gcc-cpp20-linux-stl:
-    name: GCC C++20 Linux - STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=20 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-gcc-cpp20-linux-no-stl:
-    name: GCC C++20 Linux - No STL
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=20 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-gcc-cpp20-linux-stl-force-cpp03:
-    name: GCC C++20 Linux - STL - Force C++03
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=20 ./
-        gcc --version
-        make
-
-    - name: Run tests
-      run: ./test/etl_tests
-
-  build-gcc-cpp20-linux-no-stl-force-cpp03:
-    name: GCC C++20 Linux - No STL - Force C++03
-    runs-on: ${{ matrix.os }}
-    strategy:
-      matrix:
-        os: [ubuntu-22.04]
-
-    steps:
-    - uses: actions/checkout@v3
-
-    - name: Build
-      run: |
-        export ASAN_OPTIONS=alloc_dealloc_mismatch=0,detect_leaks=0
-        export CC=gcc
-        export CXX=g++
-        cmake -DBUILD_TESTS=ON -DNO_STL=OON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=20 ./
-        gcc --version
-        make
-    
-    - name: Run tests
-      run: ./test/etl_tests
\ No newline at end of file
diff --git a/.github/workflows/linux.yml b/.github/workflows/linux.yml
new file mode 100644
index 000000000..e9c8ec66b
--- /dev/null
+++ b/.github/workflows/linux.yml
@@ -0,0 +1,82 @@
+name: ubuntu
+on:
+  push:
+    branches: [ master, development, pull-request/* ]
+  pull_request:
+    branches: [ master, pull-request/* ]
+  workflow_dispatch:
+
+jobs:
+  posix:
+    name: Ubuntu
+    runs-on: ubuntu-24.04
+    strategy:
+      matrix:
+        cpp-ver: ["03", 11, 14, 17, 20]
+        no-stl: [ON, OFF]
+        force-03: [ON, OFF]
+        compiler: [GCC, LLVM]
+        exclude:
+          - cpp-ver: 03
+            force-03: ON
+        include:
+          - tests: YES
+          - cpp-ver: "03"
+            tests: NO
+          - compiler: GCC
+            cc: gcc
+            cxx: g++
+          - compiler: LLVM
+            cc: clang
+            cxx: clang++
+    env:
+      ASAN_OPTIONS: alloc_dealloc_mismatch=0,detect_leaks=0
+      CC: ${{ matrix.cc }}
+      CXX: ${{ matrix.cxx }}
+      CXX_VER: ${{ matrix.cpp-ver }}
+      FORCE_03: ${{ matrix.force-03 }}
+      NO_STL: ${{ matrix.no-stl }}
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Versions
+      run: |
+        cmake --version
+        ${CXX} --version
+        make --version
+
+    - name: Syntax check
+      run: |
+        mkdir syntax-check
+        cd syntax-check
+        cmake ../test/syntax_check/c++${CXX_VER} \
+          -DNO_STL=${NO_STL} \
+          -DETL_USE_TYPE_TRAITS_BUILTINS=OFF \
+          -DETL_USER_DEFINED_TYPE_TRAITS=OFF \
+          -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=${FORCE_03}
+        make -j $(getconf _NPROCESSORS_ONLN)
+
+    - name: Configure
+      if: ${{ matrix.tests == 'YES' }}
+      run: |
+        mkdir build
+        cd build
+        cmake .. \
+          -DBUILD_TESTS=YES \
+          -DNO_STL=${NO_STL} \
+          -DETL_USE_TYPE_TRAITS_BUILTINS=OFF \
+          -DETL_USER_DEFINED_TYPE_TRAITS=OFF \
+          -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=${FORCE_03} \
+          -DETL_CXX_STANDARD=${CXX_VER}
+
+    - name: Build
+      if: ${{ matrix.tests == 'YES' }}
+      run: |
+        cd build
+        # getconf as portable solution via https://stackoverflow.com/a/64571679/6178613
+        make -j $(getconf _NPROCESSORS_ONLN)
+    
+    - name: Run tests
+      if: ${{ matrix.tests == 'YES' }}
+      run: ./build/test/etl_tests
diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
new file mode 100644
index 000000000..dfb0e5630
--- /dev/null
+++ b/.github/workflows/macos.yml
@@ -0,0 +1,77 @@
+name: macos
+on:
+  push:
+    branches: [ master, development, pull-request/* ]
+  pull_request:
+    branches: [ master, pull-request/* ]
+  workflow_dispatch:
+
+jobs:
+  posix:
+    name: macOS
+    runs-on: macos-14
+    strategy:
+      matrix:
+        #cpp-ver: ["03", 11, 14, 17, 20]
+        #no-stl: [ON, OFF]
+        cpp-ver: [11, 14, 17, 20]
+        no-stl: [OFF]
+        force-03: [ON, OFF]
+        #exclude:
+          #- cpp-ver: 03
+            #force-03: ON
+        include:
+          - tests: YES
+          #- cpp-ver: "03"
+            #tests: NO
+    env:
+      ASAN_OPTIONS: alloc_dealloc_mismatch=0,detect_leaks=0
+      CC: clang
+      CXX: clang++
+      CXX_VER: ${{ matrix.cpp-ver }}
+      FORCE_03: ${{ matrix.force-03 }}
+      NO_STL: ${{ matrix.no-stl }}
+
+    steps:
+    - uses: actions/checkout@v4
+
+    - name: Versions
+      run: |
+        cmake --version
+        ${CXX} --version
+        make --version
+
+    - name: Syntax check
+      run: |
+        mkdir syntax-check
+        cd syntax-check
+        cmake ../test/syntax_check/c++${CXX_VER} \
+          -DNO_STL=${NO_STL} \
+          -DETL_USE_TYPE_TRAITS_BUILTINS=OFF \
+          -DETL_USER_DEFINED_TYPE_TRAITS=OFF \
+          -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=${FORCE_03}
+        make -j $(getconf _NPROCESSORS_ONLN)
+
+    - name: Configure
+      if: ${{ matrix.tests == 'YES' }}
+      run: |
+        mkdir build
+        cd build
+        cmake .. \
+          -DBUILD_TESTS=YES \
+          -DNO_STL=${NO_STL} \
+          -DETL_USE_TYPE_TRAITS_BUILTINS=OFF \
+          -DETL_USER_DEFINED_TYPE_TRAITS=OFF \
+          -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=${FORCE_03} \
+          -DETL_CXX_STANDARD=${CXX_VER}
+
+    - name: Build
+      if: ${{ matrix.tests == 'YES' }}
+      run: |
+        cd build
+        # getconf as portable solution via https://stackoverflow.com/a/64571679/6178613
+        make -j $(getconf _NPROCESSORS_ONLN)
+    
+    - name: Run tests
+      if: ${{ matrix.tests == 'YES' }}
+      run: ./build/test/etl_tests
diff --git a/.github/workflows/msvc.yml b/.github/workflows/msvc.yml
index c63a35c2e..834630e2e 100644
--- a/.github/workflows/msvc.yml
+++ b/.github/workflows/msvc.yml
@@ -6,90 +6,49 @@ on:
     branches: [ master, pull-request/* ]
 
 jobs:
-  build-windows-msvc-stl:
-    name: Windows - STL
+  windows:
+    name: Windows
     runs-on: [windows-2022]
+    strategy:
+      matrix:
+        cpp-ver: ["03", 11, 14, 17, 20]
+        no-stl: [ON, OFF]
+        force-03: [ON, OFF]
+        exclude:
+          - cpp-ver: 03
+            force-03: ON
+        include:
+          - cpp-ver: "03"
+            tests: NO
+
+    env:
+      CXX_VER: ${{ matrix.cpp-ver }}
+      FORCE_03: ${{ matrix.force-03 }}
+      NO_STL: ${{ matrix.no-stl }}
 
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
       with:
         submodules: recursive
 
     - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.0.2
+      uses: microsoft/setup-msbuild@v2
 
     - name: Build
+      shell: bash
       run: |
-        cmake -G "Visual Studio 17 2022" -AWin32 -DBUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=20 ./
+        cmake -G "Visual Studio 17 2022" \
+          ./ \
+          -AWin32 \
+          -DBUILD_TESTS=ON \
+          -DNO_STL=${NO_STL} \
+          -DETL_USE_TYPE_TRAITS_BUILTINS=OFF \
+          -DETL_USER_DEFINED_TYPE_TRAITS=OFF \
+          -DETL_FORCE_TEST_CPP03_IMPLEMENTATION=${FORCE_03} \
+          -DETL_CXX_STANDARD=${CXX_VER}
         MSBuild.exe -version
-        MSBuild.exe .\etl.sln
-        
-    - name: Run tests
-      run: test/Debug/etl_tests.exe
-
-  build-windows-msvc-no-stl:
-    name: Windows - No STL
-    runs-on: [windows-2022]
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-      with:
-        submodules: recursive
-
-    - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.0.2
+        MSBuild.exe -m ./etl.sln
 
-    - name: Build
-      run: |
-        cmake -G "Visual Studio 17 2022" -AWin32 -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=OFF -DETL_CXX_STANDARD=17 ./
-        MSBuild.exe -version
-        MSBuild.exe .\etl.sln
-        
     - name: Run tests
       run: test/Debug/etl_tests.exe
-
-  build-windows-msvc-stl-force-cpp03:
-    name: Windows - STL - Force C++03
-    runs-on: [windows-2022]
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-      with:
-        submodules: recursive
-
-    - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.0.2
-
-    - name: Build
-      run: |
-        cmake -G "Visual Studio 17 2022" -AWin32 -DBUILD_TESTS=ON -DNO_STL=OFF -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=17 ./
-        MSBuild.exe -version
-        MSBuild.exe .\etl.sln
-
-    - name: Run tests
-      run: test/Debug/etl_tests.exe
-        
-  build-windows-msvc-no-stl-force-cpp03:
-    name: Windows - No STL - Force C++03
-    runs-on: [windows-2022]
-
-    steps:
-    - name: Checkout
-      uses: actions/checkout@v3
-      with:
-        submodules: recursive
-
-    - name: Add msbuild to PATH
-      uses: microsoft/setup-msbuild@v1.0.2
-
-    - name: Build
-      run: |
-        cmake -G "Visual Studio 17 2022" -AWin32 -DBUILD_TESTS=ON -DNO_STL=ON -DETL_USE_TYPE_TRAITS_BUILTINS=OFF -DETL_USER_DEFINED_TYPE_TRAITS=OFF -DETL_FORCE_TEST_CPP03=ON -DETL_CXX_STANDARD=17 ./
-        MSBuild.exe -version
-        MSBuild.exe .\etl.sln
-
-    - name: Run tests
-      run: test/Debug/etl_tests.exe
-