diff --git a/.github/workflows/linux.yaml b/.github/workflows/linux.yaml
index cecf36b2..08f3a327 100644
--- a/.github/workflows/linux.yaml
+++ b/.github/workflows/linux.yaml
@@ -6,18 +6,18 @@ on:
     # branches: [ master ]
 
 jobs:
-  Linux-GCC:
-    runs-on: ubuntu-20.04
+  Latest:
+    runs-on: ubuntu-24.04
     strategy:
       matrix:
-        cxx: ['7', '13']
+        cxx: ['g++-14', 'clang++-18']
     env:
       CMAKE_OPTIONS: -DDEV_MODE=ON -DBUILD_TESTING=ON
       CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
+      CXX: ${{matrix.cxx}}
     steps:
-      - uses: egor-tensin/setup-gcc@v1
-        with:
-          version: ${{matrix.cxx}}
+      - name: list compilers
+        run: dpkg --list | grep compiler
 
       - name: Get pushed code
         uses: actions/checkout@v4
@@ -47,22 +47,23 @@ jobs:
       - name: Test installation
         run: cmake --install _build --prefix ${GITHUB_WORKSPACE}/_built
 
-  Linux-Clang:
+  Oldest:
     runs-on: ubuntu-20.04
     strategy:
       matrix:
-        cxx: ['7', '18']
+        cxx: ['g++-7', 'clang++-7']
     env:
-      CMAKE_OPTIONS: -DDEV_MODE=ON -DBUILD_TESTING=ON -DCMAKE_CXX_FLAGS="-stdlib=libc++"
+      CMAKE_OPTIONS: -DDEV_MODE=ON -DBUILD_TESTING=ON
       CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
+      CXX: ${{matrix.cxx}}
     steps:
-      - uses: egor-tensin/setup-clang@v1
-        with:
-          version: ${{matrix.cxx}}
-
-      - name: Install libc++
+      - name: install gcc-7
         run: |
-          sudo apt install -y libc++abi-${{matrix.cxx}}-dev libc++-${{matrix.cxx}}-dev
+          sudo add-apt-repository --yes --update ppa:ubuntu-toolchain-r/test
+          sudo DEBIAN_FRONTEND=noninteractive apt-get install -yq --no-install-recommends ${{matrix.cxx}}
+
+      - name: list compilers
+        run: dpkg --list | grep compiler
 
       - name: Get pushed code
         uses: actions/checkout@v4
diff --git a/.github/workflows/macos.yaml b/.github/workflows/macos.yaml
deleted file mode 100644
index fb589181..00000000
--- a/.github/workflows/macos.yaml
+++ /dev/null
@@ -1,46 +0,0 @@
-name: "macOS"
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    # branches: [ master ]
-
-jobs:
-  build_libmatroska:
-    name: libmatroska ${{ matrix.arch }}
-    runs-on: macos-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        arch:   [x86_64, arm64]
-    env:
-      CMAKE_OPTIONS: -DDEV_MODE=ON
-      CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
-    steps:
-      - name: Get pushed code
-        uses: actions/checkout@v4
-
-      - name: Checkout libebml
-        uses: actions/checkout@v4
-        with:
-          repository: Matroska-Org/libebml
-          path: libebml
-          # minimum version we support ref: 'release-1.4.3'
-
-      - name: Configure libebml
-        run: cmake -S libebml -B libebml/_build ${{ env.CMAKE_OPTIONS }} -DCMAKE_OSX_ARCHITECTURES="${{ matrix.arch }}"
-
-      - name: Build libebml
-        run: cmake --build libebml/_build --parallel
-
-      - name: Install libebml
-        run: cmake --install libebml/_build --prefix ${GITHUB_WORKSPACE}/_built
-
-      - name: Configure CMake
-        run: cmake -S . -B _build ${{ env.CMAKE_OPTIONS }} ${{ env.CMAKE_MATROSKA_OPTIONS }} -DCMAKE_OSX_ARCHITECTURES="${{ matrix.arch }}" -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML"
-
-      - name: Build with CMake
-        run: cmake --build _build --parallel
-
-      - name: Test installation
-        run: cmake --install _build --prefix ${GITHUB_WORKSPACE}/_built
diff --git a/.github/workflows/uwp.yaml b/.github/workflows/uwp.yaml
deleted file mode 100644
index 1ad6e42b..00000000
--- a/.github/workflows/uwp.yaml
+++ /dev/null
@@ -1,50 +0,0 @@
-name: "Windows UWP"
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    # branches: [ master ]
-
-jobs:
-  build_libmatroska:
-    name: libmatroska ${{ matrix.arch.name }} ${{ matrix.config }}
-    runs-on: windows-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        config: [Debug, Release]
-        arch: [
-          { "name": "x64",   "option": "x64"},
-          { "name": "arm64", "option": "arm64"},
-        ]
-    env:
-      CMAKE_OPTIONS: -DDEV_MODE=ON -DCMAKE_SYSTEM_NAME="WindowsStore" -DCMAKE_SYSTEM_VERSION="10.0" -DCMAKE_CXX_FLAGS_INIT="-DWINVER=0x0A00 -DWINAPI_FAMILY=WINAPI_FAMILY_PC_APP"
-      CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
-    steps:
-      - name: Get pushed code
-        uses: actions/checkout@v4
-
-      - name: Checkout libebml
-        uses: actions/checkout@v4
-        with:
-          repository: Matroska-Org/libebml
-          path: libebml
-          # minimum version we support ref: 'release-1.4.3'
-
-      - name: Configure libebml
-        run: cmake -S libebml -B libebml/_build ${{ env.CMAKE_OPTIONS }} -A ${{ matrix.arch.option }} -DBUILD_SHARED_LIBS=OFF
-
-      - name: Build libebml
-        run: cmake --build libebml/_build --config ${{ matrix.config }} --parallel
-
-      - name: Install libebml
-        run: cmake --install libebml/_build --config ${{ matrix.config }} --prefix ${GITHUB_WORKSPACE}/_built
-
-      - name: Configure library
-        run: cmake -S . -B _build ${{ env.CMAKE_OPTIONS }} ${{ env.CMAKE_MATROSKA_OPTIONS }} -A ${{ matrix.arch.option }} -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML" -DBUILD_SHARED_LIBS=OFF
-
-      - name: Build
-        run: cmake --build _build --config ${{ matrix.config }} --parallel
-
-      - name: Test installation
-        run: cmake --install _build --config ${{ matrix.config }} --prefix ${GITHUB_WORKSPACE}/_built
diff --git a/.github/workflows/windows.yaml b/.github/workflows/windows.yaml
deleted file mode 100644
index c97fa54f..00000000
--- a/.github/workflows/windows.yaml
+++ /dev/null
@@ -1,51 +0,0 @@
-name: "Windows"
-on:
-  push:
-    branches: [ master ]
-  pull_request:
-    # branches: [ master ]
-
-jobs:
-  build_libmatroska:
-    name: libmatroska ${{ matrix.arch.name }} ${{ matrix.config }}
-    runs-on: windows-latest
-    strategy:
-      fail-fast: false
-      matrix:
-        config: [Debug, Release]
-        arch: [
-          { "name": "x64",   "option": "x64"},
-          { "name": "x86",   "option": "win32"},
-          { "name": "arm64", "option": "arm64"},
-        ]
-    env:
-      CMAKE_OPTIONS: -DDEV_MODE=ON -DCMAKE_CXX_FLAGS_INIT="-DWINVER=0x0501"
-      CMAKE_MATROSKA_OPTIONS: -DBUILD_EXAMPLES=ON
-    steps:
-      - name: Get pushed code
-        uses: actions/checkout@v4
-
-      - name: Checkout libebml
-        uses: actions/checkout@v4
-        with:
-          repository: Matroska-Org/libebml
-          path: libebml
-          # minimum version we support ref: 'release-1.4.3'
-
-      - name: Configure libebml
-        run: cmake -S libebml -B libebml/_build ${{ env.CMAKE_OPTIONS }} -A ${{ matrix.arch.option }}
-
-      - name: Build libebml
-        run: cmake --build libebml/_build --config ${{ matrix.config }} --parallel
-
-      - name: Install libebml
-        run: cmake --install libebml/_build --config ${{ matrix.config }} --prefix ${GITHUB_WORKSPACE}/_built
-
-      - name: Configure library
-        run: cmake -S . -B _build ${{ env.CMAKE_OPTIONS }} ${{ env.CMAKE_MATROSKA_OPTIONS }} -A ${{ matrix.arch.option }} -DEBML_DIR="${GITHUB_WORKSPACE}/_built/lib/cmake/EBML"
-
-      - name: Build
-        run: cmake --build _build --config ${{ matrix.config }} --parallel
-
-      - name: Test installation
-        run: cmake --install _build --config ${{ matrix.config }} --prefix ${GITHUB_WORKSPACE}/_built
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8267ba5e..538bc73f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,7 +36,6 @@ if(DEV_MODE)
   set(CMAKE_CXX_EXTENSIONS OFF)
   add_cxx_flag_if_supported(-Wno-error=unused-command-line-argument
                             -Wall -Wextra -Wpedantic -Wfatal-errors -fstack-protector-strong
-                            -Wno-self-assign
                             -Wcast-align
                             -W4)
 endif()