diff --git a/.github/workflows/build_all.yml b/.github/workflows/build_all.yml
index 1736e8d78d8..c0e8ca12665 100644
--- a/.github/workflows/build_all.yml
+++ b/.github/workflows/build_all.yml
@@ -49,9 +49,9 @@ jobs:
         include:
           - os: ubuntu-20.04
           - os: windows-latest
-          - os: macos-12
+          - os: macos-14
             arch: x86_64
-          - os: macos-12
+          - os: macos-14
             arch: arm64
     uses: ./.github/workflows/build_check_cache.yml
     with:
diff --git a/.github/workflows/build_check_cache.yml b/.github/workflows/build_check_cache.yml
index b0ff506fa86..f71cc9b2817 100644
--- a/.github/workflows/build_check_cache.yml
+++ b/.github/workflows/build_check_cache.yml
@@ -30,12 +30,12 @@ jobs:
       - name: set outputs
         id: set_outputs
         env:
-          underscore-arch: ${{ inputs.os == 'macos-12' && '_' || ''}}${{ inputs.os == 'macos-12' && inputs.arch || '' }} # if is macos, make a string that does "_{arch}", else output nothing
-          dash-arch: ${{ inputs.os == 'macos-12' && '-' || ''}}${{ inputs.os == 'macos-12' && inputs.arch || '' }} # if is macos, make a string that does "-{arch}", else output nothing
-          dep-folder-name: ${{ (inputs.os == 'windows-latest' || inputs.os == 'macos-12') && 'OrcaSlicer_dep' || 'destdir' }}
+          underscore-arch: ${{ inputs.os == 'macos-14' && '_' || ''}}${{ inputs.os == 'macos-14' && inputs.arch || '' }} # if is macos, make a string that does "_{arch}", else output nothing
+          dash-arch: ${{ inputs.os == 'macos-14' && '-' || ''}}${{ inputs.os == 'macos-14' && inputs.arch || '' }} # if is macos, make a string that does "-{arch}", else output nothing
+          dep-folder-name: ${{ (inputs.os == 'windows-latest' || inputs.os == 'macos-14') && 'OrcaSlicer_dep' || 'destdir' }}
           output-cmd: ${{ inputs.os == 'windows-latest' && '$env:GITHUB_OUTPUT' || '"$GITHUB_OUTPUT"'}}
         run: |
-          echo cache-key=${{ runner.os }}${{ env.dash-arch }}-cache-orcaslicer_deps-build-${{ hashFiles('deps/**') }} >> ${{ env.output-cmd }}
+          echo cache-key=${{ inputs.os }}${{ env.dash-arch }}-cache-orcaslicer_deps-build-${{ hashFiles('deps/**') }} >> ${{ env.output-cmd }}
           echo cache-path=${{ github.workspace }}/deps/build${{ env.underscore-arch }}/${{ env.dep-folder-name }}${{ env.underscore-arch }} >> ${{ env.output-cmd }}
             
       - name: load cache
diff --git a/.github/workflows/build_deps.yml b/.github/workflows/build_deps.yml
index bd6d7f215ba..3dc26aa51a8 100644
--- a/.github/workflows/build_deps.yml
+++ b/.github/workflows/build_deps.yml
@@ -69,15 +69,16 @@ jobs:
             cd ${{ github.workspace }}/deps/build
 
       - name: Build on Mac ${{ inputs.arch }}
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-14'
         working-directory: ${{ github.workspace }}
         run: |
-            brew install cmake git gettext automake texinfo ninja
+            brew install cmake
+            brew install automake texinfo ninja libtool
             brew list
             mkdir -p ${{ github.workspace }}/deps/build_${{ inputs.arch }}
             mkdir -p ${{ github.workspace }}/deps/build_${{ inputs.arch }}/OrcaSlicer_dep_${{ inputs.arch }}
             brew uninstall --ignore-dependencies zstd
-            ./build_release_macos.sh -dpx -a ${{ inputs.arch }} -t 10.15
+            ./build_release_macos.sh -dpx -a ${{ inputs.arch }} -t 10.15 -1
             brew install zstd
 
 
@@ -102,7 +103,7 @@ jobs:
 
       # Upload Artifacts
       - name: Upload Mac ${{ inputs.arch }} artifacts
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-14'
         uses: actions/upload-artifact@v4
         with:
           name: OrcaSlicer_dep_mac_${{ inputs.arch }}_${{ env.date }}
diff --git a/.github/workflows/build_orca.yml b/.github/workflows/build_orca.yml
index 835db630f12..727046687ee 100644
--- a/.github/workflows/build_orca.yml
+++ b/.github/workflows/build_orca.yml
@@ -75,23 +75,24 @@ jobs:
 
 #   Mac
       - name: Install tools mac
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-14'
         run: |
-          brew install cmake git gettext tree ninja
+          brew install cmake
+          brew install tree ninja libtool
           brew list
           mkdir -p ${{ github.workspace }}/deps/build_${{inputs.arch}}
           mkdir -p ${{ github.workspace }}/deps/build_${{inputs.arch}}/OrcaSlicer_dep_${{inputs.arch}}
           tree ${{ github.workspace }}/deps/build_${{inputs.arch}}/OrcaSlicer_dep_${{inputs.arch}}
 
       - name: Build slicer mac
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-14'
         working-directory: ${{ github.workspace }}
         run: |
-          ./build_release_macos.sh -s -n -x -a ${{inputs.arch}} -t 10.15
+          ./build_release_macos.sh -s -n -x -a ${{inputs.arch}} -t 10.15 -1
 
  # Thanks to RaySajuuk, it's working now
       - name: Sign app and notary
-        if: (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release/')) && inputs.os == 'macos-12'
+        if: (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release/')) && inputs.os == 'macos-14'
         working-directory: ${{ github.workspace }}
         env:
           BUILD_CERTIFICATE_BASE64: ${{ secrets.BUILD_CERTIFICATE_BASE64 }}
@@ -117,21 +118,21 @@ jobs:
           xcrun stapler staple OrcaSlicer_Mac_${{inputs.arch}}_${{ env.ver }}.dmg
 
       - name: Create DMG without notary
-        if: github.ref != 'refs/heads/main' && inputs.os == 'macos-12'
+        if: github.ref != 'refs/heads/main' && inputs.os == 'macos-14'
         working-directory: ${{ github.workspace }}
         run: |
           ln -s /Applications ${{ github.workspace }}/build_${{inputs.arch}}/OrcaSlicer/Applications
           hdiutil create -volname "OrcaSlicer" -srcfolder ${{ github.workspace }}/build_${{inputs.arch}}/OrcaSlicer -ov -format UDZO OrcaSlicer_Mac_${{inputs.arch}}_${{ env.ver }}.dmg
 
       - name: Upload artifacts mac
-        if: inputs.os == 'macos-12'
+        if: inputs.os == 'macos-14'
         uses: actions/upload-artifact@v4
         with:
           name: OrcaSlicer_Mac_${{inputs.arch}}_${{ env.ver }}
           path: ${{ github.workspace }}/OrcaSlicer_Mac_${{inputs.arch}}_${{ env.ver }}.dmg
 
       - name: Deploy Mac release
-        if: github.ref == 'refs/heads/main' && inputs.os == 'macos-12'
+        if: github.ref == 'refs/heads/main' && inputs.os == 'macos-14'
         uses: WebFreak001/deploy-nightly@v3.1.0
         with:
           upload_url: https://uploads.github.com/repos/SoftFever/OrcaSlicer/releases/137995723/assets{?name,label}
diff --git a/build_release_macos.sh b/build_release_macos.sh
index 5da682d3f85..38a360ed2d7 100755
--- a/build_release_macos.sh
+++ b/build_release_macos.sh
@@ -34,6 +34,9 @@ while getopts ":dpa:snt:xbc:h" opt; do
     c )
         export BUILD_CONFIG="$OPTARG"
         ;;
+    1 )
+        export CMAKE_BUILD_PARALLEL_LEVEL=1
+        ;;
     h ) echo "Usage: ./build_release_macos.sh [-d]"
         echo "   -d: Build deps only"
         echo "   -a: Set ARCHITECTURE (arm64 or x86_64)"
@@ -43,6 +46,7 @@ while getopts ":dpa:snt:xbc:h" opt; do
         echo "   -x: Use Ninja CMake generator, default is Xcode"
         echo "   -b: Build without reconfiguring CMake"
         echo "   -c: Set CMake build configuration, default is Release"
+        echo "   -1: Use single job for building"
         exit 0
         ;;
     * )