diff --git a/.github/workflows/abtesting.yml b/.github/workflows/abtesting.yml
index 141d6ff45c5..29ba0bb6c73 100644
--- a/.github/workflows/abtesting.yml
+++ b/.github/workflows/abtesting.yml
@@ -20,15 +20,23 @@ jobs:
     # Don't run on private repo unless it is a PR.
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'
 
-    runs-on: macos-12
     strategy:
       matrix:
-        target: [ios, tvos, macos, watchos]
+        target: [iOS, tvOS, macOS, catalyst, watchOS]
+        os: [macos-12, macos-13]
+        include:
+          - os: macos-12
+            xcode: Xcode_14.2
+          - os: macos-13
+            xcode: Xcode_15.0.1
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - uses: ruby/setup-ruby@v1
     - name: Setup Bundler
       run: scripts/setup_bundler.sh
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Build and test
       run: |
         scripts/third_party/travis/retry.sh scripts/pod_lib_lint.rb FirebaseABTesting.podspec \
@@ -37,15 +45,23 @@ jobs:
   spm:
     # Don't run on private repo unless it is a PR.
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'
-    runs-on: macos-12
     strategy:
       matrix:
         target: [iOS, tvOS, macOS, catalyst, watchOS]
+        os: [macos-12, macos-13]
+        include:
+          - os: macos-12
+            xcode: Xcode_14.2
+          - os: macos-13
+            xcode: Xcode_15.0.1
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - uses: mikehardy/buildcache-action@c87cea0ccd718971d6cc39e672c4f26815b6c126
       with:
         cache_key: ${{ matrix.os }}
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Initialize xcodebuild
       run: scripts/setup_spm_tests.sh
     - name: Unit Tests
diff --git a/.github/workflows/analytics.yml b/.github/workflows/analytics.yml
index 3b3e14fa235..65e7b8ec933 100644
--- a/.github/workflows/analytics.yml
+++ b/.github/workflows/analytics.yml
@@ -20,11 +20,12 @@ jobs:
     # Don't run on private repo unless it is a PR.
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'
 
-    runs-on: macos-12
-
     strategy:
       matrix:
         target: [ios, tvos, macos]
+        os: [macos-12, macos-13]
+    runs-on: ${{ matrix.os }}
+
     steps:
     - uses: actions/checkout@v3
     - uses: ruby/setup-ruby@v1
diff --git a/.github/workflows/appdistribution.yml b/.github/workflows/appdistribution.yml
index 122dad50344..d248d92ebd5 100644
--- a/.github/workflows/appdistribution.yml
+++ b/.github/workflows/appdistribution.yml
@@ -19,15 +19,23 @@ jobs:
     # Don't run on private repo unless it is a PR.
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'
 
-    runs-on: macos-12
     strategy:
       matrix:
-        target: [ios]
+        target: [iOS]
+        os: [macos-12, macos-13]
+        include:
+          - os: macos-12
+            xcode: Xcode_14.2
+          - os: macos-13
+            xcode: Xcode_15.0.1
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - uses: ruby/setup-ruby@v1
     - name: Setup Bundler
       run: scripts/setup_bundler.sh
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Build and test
       run: |
        scripts/third_party/travis/retry.sh scripts/pod_lib_lint.rb FirebaseAppDistribution.podspec \
@@ -37,12 +45,22 @@ jobs:
     # Don't run on private repo unless it is a PR.
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'
 
-    runs-on: macos-12
+    strategy:
+      matrix:
+        os: [macos-12, macos-13]
+        include:
+          - os: macos-12
+            xcode: Xcode_14.2
+          - os: macos-13
+            xcode: Xcode_15.0.1
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - uses: mikehardy/buildcache-action@c87cea0ccd718971d6cc39e672c4f26815b6c126
       with:
         cache_key: ${{ matrix.os }}
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Initialize xcodebuild
       run: scripts/setup_spm_tests.sh
     - name: iOS Unit Tests
diff --git a/.github/workflows/auth.yml b/.github/workflows/auth.yml
index d4078ce6e28..e2f15beb1e7 100644
--- a/.github/workflows/auth.yml
+++ b/.github/workflows/auth.yml
@@ -21,11 +21,16 @@ jobs:
     # Don't run on private repo unless it is a PR.
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'
 
-    runs-on: macos-12
     strategy:
       matrix:
-        podspec: [FirebaseAuthInterop.podspec, FirebaseAuth.podspec]
-        target: [ios, tvos, macos, watchos]
+        target: [iOS, tvOS, macOS, catalyst, watchOS]
+        os: [macos-12, macos-13]
+        include:
+          - os: macos-12
+            xcode: Xcode_14.2
+          - os: macos-13
+            xcode: Xcode_15.0.1
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - uses: ruby/setup-ruby@v1
@@ -33,6 +38,8 @@ jobs:
       run: scripts/setup_bundler.sh
     - name: Configure test keychain
       run: scripts/configure_test_keychain.sh
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Build and test
       run: |
         scripts/third_party/travis/retry.sh scripts/pod_lib_lint.rb ${{ matrix.podspec }} --platforms=${{ matrix.target }}
@@ -77,15 +84,23 @@ jobs:
   spm:
     # Don't run on private repo unless it is a PR.
     if: (github.repository == 'Firebase/firebase-ios-sdk' && github.event_name == 'schedule') || github.event_name == 'pull_request'
-    runs-on: macos-12
     strategy:
       matrix:
         target: [iOS, tvOS, macOS, catalyst, watchOS]
+        os: [macos-12, macos-13]
+        include:
+          - os: macos-12
+            xcode: Xcode_14.2
+          - os: macos-13
+            xcode: Xcode_15.0.1
+    runs-on: ${{ matrix.os }}
     steps:
     - uses: actions/checkout@v3
     - uses: mikehardy/buildcache-action@c87cea0ccd718971d6cc39e672c4f26815b6c126
       with:
         cache_key: ${{ matrix.os }}
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Initialize xcodebuild
       run: scripts/setup_spm_tests.sh
     - name: Unit Tests
diff --git a/.github/workflows/core.yml b/.github/workflows/core.yml
index ad3d0604b4b..043b8755a18 100644
--- a/.github/workflows/core.yml
+++ b/.github/workflows/core.yml
@@ -34,6 +34,8 @@ jobs:
     - uses: ruby/setup-ruby@v1
     - name: Setup Bundler
       run: scripts/setup_bundler.sh
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Build and test
       run: scripts/third_party/travis/retry.sh scripts/pod_lib_lint.rb FirebaseCore.podspec --platforms=${{ matrix.target }}
 
@@ -55,6 +57,8 @@ jobs:
     - uses: mikehardy/buildcache-action@c87cea0ccd718971d6cc39e672c4f26815b6c126
       with:
         cache_key: ${{ matrix.os }}
+    - name: Xcode
+      run: sudo xcode-select -s /Applications/${{ matrix.xcode }}.app/Contents/Developer
     - name: Initialize xcodebuild
       run: scripts/setup_spm_tests.sh
     - name: Unit Tests