diff --git a/.circleci/config.yml b/.circleci/config.yml
index bb193efa8..8d9601ff1 100644
--- a/.circleci/config.yml
+++ b/.circleci/config.yml
@@ -109,7 +109,7 @@ jobs:
   i686-gcc11-O2:
     resource_class: large
     docker:
-      - image: debian:testing-slim
+      - image: debian:stable-slim
         auth:
           username: $DOCKERHUB_USERNAME
           password: $DOCKERHUB_PASSWORD
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 0efceabdf..d7c99c952 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -200,8 +200,8 @@ jobs:
       run: |
         git clone https://github.com/emscripten-core/emsdk.git /opt/emsdk
         cd /opt/emsdk
-        ./emsdk install tot
-        ./emsdk activate tot
+        ./emsdk install b76bd83583cc5fd07b3a3d5b4857874c1d81a002
+        ./emsdk activate b76bd83583cc5fd07b3a3d5b4857874c1d81a002
         source emsdk_env.sh
     - name: Install v8
       run: |
@@ -449,25 +449,19 @@ jobs:
           cross: riscv64+rvv_vlen128_elen64
           arch_gnu: riscv64
           arch_deb: riscv64
-          distro: ubuntu-22.04
+          distro: ubuntu-24.04
         - version: 17  # not yet passing with clang 18.1.3
           cross: riscv64+rvv_vlen256_elen64
           arch_gnu: riscv64
           arch_deb: riscv64
-          distro: ubuntu-22.04
+          distro: ubuntu-24.04
         - version: 17  # not yet passing with clang 18.1.3
           cross: riscv64+rvv_vlen512_elen64
           arch_gnu: riscv64
           arch_deb: riscv64
-          distro: ubuntu-22.04
+          distro: ubuntu-24.04
     runs-on: ${{ matrix.distro }}
-    container:
-      image: amd64/ubuntu:23.10
     steps:
-    - run: apt-get update
-    - name: Install git
-      run: |
-        apt-get install -y --no-install-recommends git ca-certificates
     - uses: actions/checkout@v4
       with:
         submodules: recursive
@@ -477,8 +471,8 @@ jobs:
       run: |
         #add-apt-repository ppa:savoury1/virtualisation
         #add-apt-repository ppa:savoury1/display
-        apt-get update -y
-        apt-get install -y --no-install-recommends ninja-build pkg-config \
+        sudo apt-get update -y
+        sudo apt-get install -y --no-install-recommends ninja-build pkg-config \
           qemu-user-static clang-${{ matrix.version }} ninja-build binfmt-support \
           libc6-${{ matrix.arch_deb }}-cross meson llvm-${{ matrix.version }} \
           libstdc++-12-dev-${{ matrix.arch_deb }}-cross \
@@ -753,17 +747,11 @@ jobs:
       fail-fast: false
       matrix:
         # https://www.jessesquires.com/blog/2020/01/06/selecting-an-xcode-version-on-github-ci/
-        # https://github.com/actions/runner-images/blob/main/images/macos/macos-12-Readme.md#xcode
         # https://github.com/actions/runner-images/blob/main/images/macos/macos-13-Readme.md#xcode
         # https://github.com/actions/runner-images/blob/main/images/macos/macos-14-arm64-Readme.md#xcode
+        # https://github.com/actions/runner-images/blob/main/images/macos/macos-15-arm64-Readme.md#xcode
         # https://trac.macports.org/wiki/XcodeVersionInfo
         include:
-          - xcode: "13.1"
-            os: macos-12
-            arch_flags: -Wno-poison-system-directories  # due to meson test
-          - xcode: "13.3.1"
-            os: macos-12
-            arch_flags: -Wno-poison-system-directories  # due to meson test
           - xcode: "14.2"
             os: macos-13
             arch_flags: -Wno-poison-system-directories  # due to meson test
@@ -779,11 +767,6 @@ jobs:
           - xcode: "15.2"
             os: macos-13
             arch_flags: -Wno-poison-system-directories  # due to meson test
-          - xcode: "14.3.1"
-            os: macos-14  # arm64
-            arch_flags: -march=native -Wno-poison-system-directories
-              # "-Wno-poison-system-directories": due to meson test
-              # "-march=native": without, or with -mcpu=apple-m1 then unavailable __ARM_FEATURE_s get enabled
           - xcode: "15.2"
             os: macos-14  # arm64
             arch_flags: -march=native -Wno-poison-system-directories
@@ -800,7 +783,7 @@ jobs:
               # "-Wno-poison-system-directories": due to meson test
               # "-march=native": without, or with -mcpu=apple-m1 then unavailable __ARM_FEATURE_s get enabled
           - xcode: "16.0"
-            os: macos-14  # arm64
+            os: macos-15  # arm64
             arch_flags: -march=native -Wno-poison-system-directories
               # "-Wno-poison-system-directories": due to meson test
               # "-march=native": without, or with -mcpu=apple-m1 then unavailable __ARM_FEATURE_s get enabled
@@ -868,30 +851,6 @@ jobs:
     - name: Test
       run: meson test -C build --print-errorlogs $(meson test -C build --list | grep -v emul)
 
-  msvc-arm64:
-    name: Windows MSVC-AArch64
-    runs-on: [windows-latest]
-    env:
-      CFLAGS: /WX /Z7
-      CXXFLAGS: /WX /Z7
-    steps:
-      - name: Checkout
-        uses: actions/checkout@v4
-        with:
-          submodules: recursive
-      - name: Install Meson, Ninja and coverage
-        run: |
-          python3 -m pip install --upgrade ninja meson
-          choco install opencppcoverage codecov
-      - name: Use ARM64 Developer Command Prompt
-        uses: ilammy/msvc-dev-cmd@v1
-        with:
-          arch: amd64_arm64
-      - name: Configure and Build
-        run: |
-          meson --backend=ninja build --cross-file test/arm64cl.txt
-          ninja -C build test
-
   linux-gcc-loongarch64:
     runs-on: ubuntu-24.04
     steps: