diff --git a/.github/workflows/build-with-nix.yml b/.github/workflows/build-with-nix.yml
index f8c977c3dd..5cecbe3c4a 100644
--- a/.github/workflows/build-with-nix.yml
+++ b/.github/workflows/build-with-nix.yml
@@ -11,7 +11,7 @@ jobs:
   build_and_test:
     strategy:
       matrix:
-        os: ['ubuntu-22.04', 'macos-13-xlarge']
+        os: ['ubuntu-22.04', 'macos-14']
     runs-on: ${{matrix.os}}
     steps:
     - uses: actions/checkout@v4
diff --git a/.github/workflows/build_and_test.yml b/.github/workflows/build_and_test.yml
index e49a91be5d..9df57f11f7 100644
--- a/.github/workflows/build_and_test.yml
+++ b/.github/workflows/build_and_test.yml
@@ -97,7 +97,7 @@ jobs:
     if: needs.check_changes.outputs.tket_or_workflow_changed == 'true'
     strategy:
       matrix:
-        os: ['ubuntu-22.04', 'macos-12', 'macos-13-xlarge']
+        os: ['ubuntu-22.04', 'macos-12', 'macos-14']
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4
@@ -330,7 +330,7 @@ jobs:
     if: needs.check_changes.outputs.tket_or_workflow_changed == 'true' || needs.check_changes.outputs.pytket_or_workflow_changed == 'true'
     strategy:
       matrix:
-        os: ['macos-12', 'macos-13-xlarge']
+        os: ['macos-12', 'macos-14']
     runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v4
@@ -401,7 +401,7 @@ jobs:
         python -m pip install -r requirements.txt
         python -m pytest --ignore=simulator/
     - name: Check type stubs are up-to-date and run mypy
-      if: matrix.os == 'macos-13-xlarge' && (github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch')
+      if: matrix.os == 'macos-14' && (github.event_name == 'pull_request' || github.event_name == 'workflow_dispatch')
       run: |
         python -m pip install -U mypy pybind11-stubgen
         cd pytket
diff --git a/.github/workflows/build_libs.yml b/.github/workflows/build_libs.yml
index 592c3e4dc9..735058d515 100644
--- a/.github/workflows/build_libs.yml
+++ b/.github/workflows/build_libs.yml
@@ -46,7 +46,7 @@ jobs:
     if: ${{ needs.changes.outputs.libs != '[]' && needs.changes.outputs.libs != '' }}
     strategy:
       matrix:
-        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-13-xlarge']
+        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-14']
         lib: ${{ fromJson(needs.changes.outputs.libs) }}
         build_type: ['Release', 'Debug']
     runs-on: ${{ matrix.os }}
diff --git a/.github/workflows/packages.yml b/.github/workflows/packages.yml
index 35b72ef1bb..d1b91ea09e 100644
--- a/.github/workflows/packages.yml
+++ b/.github/workflows/packages.yml
@@ -17,7 +17,7 @@ jobs:
     name: Build
     strategy:
       matrix:
-        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-13-xlarge']
+        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-14']
     runs-on: ${{ matrix.os }}
     steps:
 
diff --git a/.github/workflows/release.yml b/.github/workflows/release.yml
index 50e4b44cb1..269c9b0d28 100644
--- a/.github/workflows/release.yml
+++ b/.github/workflows/release.yml
@@ -62,8 +62,8 @@ jobs:
         name: Linux_aarch64_3.${{ matrix.python3-version }}_wheel
         path: wheelhouse/
 
-  build_macos_wheels:
-    name: Build macos wheels
+  build_macos_x86_wheels:
+    name: Build macos x86 wheels
     runs-on: macos-12
     strategy:
       matrix:
@@ -101,12 +101,12 @@ jobs:
         delocate-wheel -v -w "$GITHUB_WORKSPACE/wheelhouse/" "dist/pytket-"*".whl"
     - uses: actions/upload-artifact@v4
       with:
-        name: MacOS_${{ matrix.python-version }}_wheel
+        name: MacOS_x86_${{ matrix.python-version }}_wheel
         path: wheelhouse/
 
-  build_macos_M1_wheels:
-    name: Build macos (M1) wheels
-    runs-on: macos-13-xlarge
+  build_macos_arm64_wheels:
+    name: Build macos arm64 wheels
+    runs-on: macos-14
     strategy:
       matrix:
         python-version: ['3.10', '3.11', '3.12']
@@ -125,7 +125,7 @@ jobs:
       run: |
         conan profile detect
         DEFAULT_PROFILE_PATH=`conan profile path default`
-        PROFILE_PATH=./conan-profiles/macos-13-xlarge
+        PROFILE_PATH=./conan-profiles/macos-14
         diff ${DEFAULT_PROFILE_PATH} ${PROFILE_PATH} || true
         cp ${PROFILE_PATH} ${DEFAULT_PROFILE_PATH}
         conan remote add tket-libs https://quantinuumsw.jfrog.io/artifactory/api/conan/tket1-libs --index 0
@@ -139,12 +139,12 @@ jobs:
         # Ensure wheels are compatible with MacOS 12.0 and later:
         export WHEEL_PLAT_NAME=macosx_12_0_arm64
         python${{ matrix.python-version }} -m pip install -U pip build
-        python${{ matrix.python-version }} -m pip install delocate ~= 0.10.7
+        python${{ matrix.python-version }} -m pip install delocate~=0.10.7
         python${{ matrix.python-version }} -m build
         delocate-wheel -v -w "$GITHUB_WORKSPACE/wheelhouse/" "dist/pytket-"*".whl"
     - uses: actions/upload-artifact@v4
       with:
-        name: MacOS_M1_${{ matrix.python-version }}_wheel
+        name: MacOS_arm64_${{ matrix.python-version }}_wheel
         path: wheelhouse/
 
   build_Windows_wheels:
@@ -253,9 +253,9 @@ jobs:
     - name: Run tests
       run: cd tket/pytket/tests && pytest --ignore=simulator/
 
-  test_macos_wheels:
-    name: Test macos wheels
-    needs: build_macos_wheels
+  test_macos_x86_wheels:
+    name: Test macos x86 wheels
+    needs: build_macos_x86_wheels
     strategy:
       matrix:
         os: ['macos-12', 'macos-13']
@@ -269,7 +269,7 @@ jobs:
     - name: Download wheels
       uses: actions/download-artifact@v4
       with:
-        name: MacOS_${{ matrix.python-version }}_wheel
+        name: MacOS_x86_${{ matrix.python-version }}_wheel
         path: wheelhouse/
     - uses: actions/checkout@v4
       with:
@@ -283,13 +283,14 @@ jobs:
         pip install -r requirements.txt
         pytest --ignore=simulator/
 
-  test_macos_M1_wheels:
-    name: Test macos (M1) wheels
-    needs: build_macos_M1_wheels
-    runs-on: macos-13-xlarge
+  test_macos_arm64_wheels:
+    name: Test macos arm64 wheels
+    needs: build_macos_arm64_wheels
     strategy:
       matrix:
+        os: ['macos-13-xlarge', 'macos-14']
         python-version: ['3.10', '3.11', '3.12']
+    runs-on: ${{ matrix.os }}
     steps:
     - name: Set up Python ${{ matrix.python-version }}
       uses: actions/setup-python@v5
@@ -298,7 +299,7 @@ jobs:
     - name: Download wheels
       uses: actions/download-artifact@v4
       with:
-        name: MacOS_M1_${{ matrix.python-version }}_wheel
+        name: MacOS_arm64_${{ matrix.python-version }}_wheel
         path: wheelhouse/
     - uses: actions/checkout@v4
       with:
@@ -345,7 +346,7 @@ jobs:
   publish_to_pypi:
     name: Publish to pypi
     if: github.event_name == 'release'
-    needs: [test_linux_wheels, test_linux_aarch64_wheels, test_macos_wheels, test_macos_M1_wheels, test_Windows_wheels]
+    needs: [test_linux_wheels, test_linux_aarch64_wheels, test_macos_x86_wheels, test_macos_arm64_wheels, test_Windows_wheels]
     runs-on: ubuntu-22.04
     steps:
     - name: Download all wheels
diff --git a/.github/workflows/test_libs.yml b/.github/workflows/test_libs.yml
index 6a1226efe3..abe72ad419 100644
--- a/.github/workflows/test_libs.yml
+++ b/.github/workflows/test_libs.yml
@@ -63,7 +63,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-13-xlarge']
+        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-14']
         lib: ${{ fromJson(needs.set_libs_matrix.outputs.libs) }}
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/.github/workflows/test_libs_all.yml b/.github/workflows/test_libs_all.yml
index ac4aa9efff..3421d87374 100644
--- a/.github/workflows/test_libs_all.yml
+++ b/.github/workflows/test_libs_all.yml
@@ -10,7 +10,7 @@ jobs:
     name: test library
     strategy:
       matrix:
-        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-13-xlarge']
+        os: ['ubuntu-22.04', 'macos-12', 'windows-2022', 'macos-14']
         lib: ['tklog', 'tkassert', 'tkrng', 'tktokenswap', 'tkwsm']
     runs-on: ${{ matrix.os }}
     steps:
diff --git a/conan-profiles/macos-13-xlarge b/conan-profiles/macos-14
similarity index 85%
rename from conan-profiles/macos-13-xlarge
rename to conan-profiles/macos-14
index 8f73dd19c5..38919cc4de 100644
--- a/conan-profiles/macos-13-xlarge
+++ b/conan-profiles/macos-14
@@ -4,5 +4,5 @@ build_type=Release
 compiler=apple-clang
 compiler.cppstd=gnu17
 compiler.libcxx=libc++
-compiler.version=14
+compiler.version=15
 os=Macos
diff --git a/conan-profiles/macos-armv8-clang14 b/conan-profiles/macos-armv8-clang14
deleted file mode 100644
index 8f73dd19c5..0000000000
--- a/conan-profiles/macos-armv8-clang14
+++ /dev/null
@@ -1,8 +0,0 @@
-[settings]
-arch=armv8
-build_type=Release
-compiler=apple-clang
-compiler.cppstd=gnu17
-compiler.libcxx=libc++
-compiler.version=14
-os=Macos
diff --git a/pytket/conanfile.py b/pytket/conanfile.py
index 1041ae3500..0f2b30f322 100644
--- a/pytket/conanfile.py
+++ b/pytket/conanfile.py
@@ -32,7 +32,7 @@ def package(self):
         cmake.install()
 
     def requirements(self):
-        self.requires("tket/1.2.116@tket/stable")
+        self.requires("tket/1.2.117@tket/stable")
         self.requires("tklog/0.3.3@tket/stable")
         self.requires("tkrng/0.3.3@tket/stable")
         self.requires("tkassert/0.3.4@tket/stable")
diff --git a/tket/conanfile.py b/tket/conanfile.py
index 4b1fdf1470..cb0f27dcba 100644
--- a/tket/conanfile.py
+++ b/tket/conanfile.py
@@ -23,7 +23,7 @@
 
 class TketConan(ConanFile):
     name = "tket"
-    version = "1.2.116"
+    version = "1.2.117"
     package_type = "library"
     license = "Apache 2"
     homepage = "https://github.com/CQCL/tket"