diff --git a/.github/workflows/aboveS20.yml b/.github/workflows/aboveS20.yml
new file mode 100644
index 0000000..8c0aa4b
--- /dev/null
+++ b/.github/workflows/aboveS20.yml
@@ -0,0 +1,47 @@
+name: Update aboveS20 Branches
+
+on:
+  push:
+    branches:
+      - master
+
+permissions:
+  contents: write
+
+jobs:
+  update-branches:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout master branch
+        uses: actions/checkout@v3
+
+      - name: Set up Git user
+        run: |
+          git config user.name "GitHub Actions"
+          git config user.email "actions@github.com"
+
+      - name: Delete branches locally and on remote
+        run: |
+          git push origin --delete aboveS20 || true
+          git branch -D aboveS20 || true
+
+      - name: Create aboveS20 branch from master and modify inc.h
+        run: |
+          git checkout master
+          git checkout -b aboveS20
+          echo '#define ABOVE_S20' | cat - "./Project Reboot 3.0/inc.h" > temp && mv temp "./Project Reboot 3.0/inc.h"
+          git add "./Project Reboot 3.0/inc.h"
+          git commit -m "Add #define ABOVE_S20 to inc.h in aboveS20 branch"
+          git push origin aboveS20
+
+  build-master:
+    uses: ./.github/workflows/msbuild.yml
+    needs: update-branches
+    with:
+      branch: master
+
+  build-aboveS20:
+    uses: ./.github/workflows/msbuild.yml
+    needs: update-branches
+    with:
+      branch: aboveS20
diff --git a/.github/workflows/msbuild.yml b/.github/workflows/msbuild.yml
index a408cca..2a3b4ef 100644
--- a/.github/workflows/msbuild.yml
+++ b/.github/workflows/msbuild.yml
@@ -2,9 +2,9 @@ name: MSBuild
 
 on:
   push:
-    branches: [ "master" ]
+    branches: ["master"]
   pull_request:
-    branches: [ "master" ]
+    branches: ["master"]
 
 env:
   SOLUTION_FILE_PATH: .
@@ -18,35 +18,35 @@ jobs:
     runs-on: windows-latest
 
     steps:
-    - uses: actions/checkout@v3
+      - uses: actions/checkout@v3
 
-    - name: Add MSBuild to PATH
-      uses: microsoft/setup-msbuild@v1.0.2
+      - name: Add MSBuild to PATH
+        uses: microsoft/setup-msbuild@v1.0.2
 
-    - name: Restore NuGet packages
-      working-directory: ${{env.GITHUB_WORKSPACE}}
-      run: nuget restore ${{env.SOLUTION_FILE_PATH}}
+      - name: Restore NuGet packages
+        working-directory: ${{env.GITHUB_WORKSPACE}}
+        run: nuget restore ${{env.SOLUTION_FILE_PATH}}
 
-    - name: Build Reboot
-      working-directory: ${{env.GITHUB_WORKSPACE}}
-      run: msbuild ${{env.SOLUTION_FILE_PATH}} /t:Clean,Build /p:Configuration=Release
-      
-    - name: Upload Artifact without ABOVE_S20
-      uses: actions/upload-artifact@v4
-      with:
-        name: Reboot
-        path: ${{env.SOLUTION_FILE_PATH}}/x64/Release
-        if-no-files-found: warn
-        retention-days: 90
+      - name: Build Reboot
+        working-directory: ${{env.GITHUB_WORKSPACE}}
+        run: msbuild ${{env.SOLUTION_FILE_PATH}} /t:Clean,Build /p:Configuration=Release
 
-    - name: Build RebootS20
-      working-directory: ${{env.GITHUB_WORKSPACE}}
-      run: msbuild ${{env.SOLUTION_FILE_PATH}} /p:AboveS20=TRUE /t:Clean,Build /p:Configuration=Release
+      - name: Upload Artifact without ABOVE_S20
+        uses: actions/upload-artifact@v4
+        with:
+          name: Reboot
+          path: ${{env.SOLUTION_FILE_PATH}}/x64/Release
+          if-no-files-found: warn
+          retention-days: 90
 
-    - name: Upload Artifact with ABOVE_S20
-      uses: actions/upload-artifact@v4
-      with:
-        name: RebootS20
-        path: ${{env.SOLUTION_FILE_PATH}}/x64/Release
-        if-no-files-found: warn
-        retention-days: 90
+      - name: Build RebootS20
+        working-directory: ${{env.GITHUB_WORKSPACE}}
+        run: msbuild ${{env.SOLUTION_FILE_PATH}} /p:AboveS20=TRUE /t:Clean,Build /p:Configuration=Release
+
+      - name: Upload Artifact with ABOVE_S20
+        uses: actions/upload-artifact@v4
+        with:
+          name: RebootS20
+          path: ${{env.SOLUTION_FILE_PATH}}/x64/Release
+          if-no-files-found: warn
+          retention-days: 90