diff --git a/.github/workflows/swift.yml b/.github/workflows/swift.yml
index e7c64f25..eee332f2 100644
--- a/.github/workflows/swift.yml
+++ b/.github/workflows/swift.yml
@@ -7,7 +7,15 @@ on:
     branches: [ main ]
 
 jobs:
+  cancel_previous:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: styfle/cancel-workflow-action@0.9.1
+      with:
+        workflow_id: ${{ github.event.workflow.id }}
+        
   build_and_test_spm_mac:
+    needs: cancel_previous
     runs-on: macos-11
     steps:
     - uses: maxim-lobanov/setup-xcode@v1
@@ -25,6 +33,7 @@ jobs:
       run: swift test
 
   build_and_test_spm_linux:
+    needs: cancel_previous
     runs-on: ubuntu-latest
     steps:
     - uses: fwal/setup-swift@v1
@@ -42,6 +51,7 @@ jobs:
       run: swift test --enable-test-discovery
 
   build_and_test_ios:
+    needs: cancel_previous
     runs-on: macos-11
     steps:
     - uses: maxim-lobanov/setup-xcode@v1
@@ -50,12 +60,20 @@ jobs:
     - uses: actions/checkout@v2
       with:
         ref: ${{ github.event.pull_request.head.sha }}
+    - uses: actions/cache@v2
+      with:
+        path: /Users/runner/Library/Developer/Xcode/DerivedData/**/SourcePackages/checkouts
+        key: ${{ runner.os }}-spm-ios-${{ hashFiles('**/Package.resolved') }}
+        restore-keys: |
+          ${{ runner.os }}-spm-ios
     - uses: webfactory/ssh-agent@v0.5.3
       with:
         ssh-private-key: ${{ secrets.SOVRAN_SSH_KEY }}
     - run: xcodebuild -scheme Segment-Package test -sdk iphonesimulator -destination 'platform=iOS Simulator,name=iPhone 11'
 
+
   build_and_test_tvos:
+    needs: cancel_previous
     runs-on: macos-11
     steps:
     - uses: maxim-lobanov/setup-xcode@v1
@@ -64,12 +82,19 @@ jobs:
     - uses: actions/checkout@v2
       with:
         ref: ${{ github.event.pull_request.head.sha }}
+    - uses: actions/cache@v2
+      with:
+        path: /Users/runner/Library/Developer/Xcode/DerivedData/**/SourcePackages/checkouts
+        key: ${{ runner.os }}-spm-tvos-${{ hashFiles('**/Package.resolved') }}
+        restore-keys: |
+          ${{ runner.os }}-spm-tvos
     - uses: webfactory/ssh-agent@v0.5.3
       with:
         ssh-private-key: ${{ secrets.SOVRAN_SSH_KEY }}
     - run: xcodebuild -scheme Segment-Package test -sdk appletvsimulator -destination 'platform=tvOS Simulator,name=Apple TV'
 
   build_and_test_watchos:
+    needs: cancel_previous
     runs-on: macos-11
     steps:
     - uses: maxim-lobanov/setup-xcode@v1
@@ -78,12 +103,19 @@ jobs:
     - uses: actions/checkout@v2
       with:
         ref: ${{ github.event.pull_request.head.sha }}
+    - uses: actions/cache@v2
+      with:
+        path: /Users/runner/Library/Developer/Xcode/DerivedData/**/SourcePackages/checkouts
+        key: ${{ runner.os }}-spm-watchos-${{ hashFiles('**/Package.resolved') }}
+        restore-keys: |
+          ${{ runner.os }}-spm-watchos
     - uses: webfactory/ssh-agent@v0.5.3
       with:
         ssh-private-key: ${{ secrets.SOVRAN_SSH_KEY }}
     - run: xcodebuild -scheme Segment-Package test -sdk watchsimulator -destination 'platform=watchOS Simulator,name=Apple Watch Series 5 - 40mm'
     
-  build_examples:
+  build_and_test_examples:
+    needs: cancel_previous
     runs-on: macos-11
     steps:
     - uses: maxim-lobanov/setup-xcode@v1
@@ -92,6 +124,12 @@ jobs:
     - uses: actions/checkout@v2
       with:
         ref: ${{ github.event.pull_request.head.sha }}
+    - uses: actions/cache@v2
+      with:
+        path: /Users/runner/Library/Developer/Xcode/DerivedData
+        key: ${{ runner.os }}-spm-examples-${{ hashFiles('**/Package.resolved') }}
+        restore-keys: |
+          ${{ runner.os }}-spm-examples
     - uses: webfactory/ssh-agent@v0.5.3
       with:
         ssh-private-key: ${{ secrets.SOVRAN_SSH_KEY }}
@@ -99,10 +137,6 @@ jobs:
       run: |
           cd Examples/apps/BasicExample
           xcodebuild -workspace "BasicExample.xcworkspace" -scheme "BasicExample" -sdk iphonesimulator
-    - name: build for ios simulator
-      run: |
-          cd Examples/apps/DestinationsExample
-          xcodebuild -workspace "DestinationsExample.xcworkspace" -scheme "DestinationsExample" -sdk iphonesimulator
     - name: build for ios simulator
       run: |
           cd Examples/apps/ObjCExample
@@ -115,3 +149,28 @@ jobs:
       run: |
           cd Examples/apps/SegmentUIKitExample
           xcodebuild -workspace "SegmentUIKitExample.xcworkspace" -scheme "SegmentUIKitExample" -destination 'platform=macOS,variant=Mac Catalyst'
+          
+  
+  build_and_test_dest_examples:
+    needs: cancel_previous
+    runs-on: macos-11
+    steps:
+    - uses: maxim-lobanov/setup-xcode@v1
+      with:
+        xcode-version: '13.0'
+    - uses: actions/checkout@v2
+      with:
+        ref: ${{ github.event.pull_request.head.sha }}
+    - uses: actions/cache@v2
+      with:
+        path: /Users/runner/Library/Developer/Xcode/DerivedData
+        key: ${{ runner.os }}-spm-dest-example-${{ hashFiles('**/Package.resolved') }}
+        restore-keys: |
+          ${{ runner.os }}-spm-dest-example
+    - uses: webfactory/ssh-agent@v0.5.3
+      with:
+        ssh-private-key: ${{ secrets.SOVRAN_SSH_KEY }}
+    - name: build for ios simulator
+      run: |
+          cd Examples/apps/DestinationsExample
+          xcodebuild -workspace "DestinationsExample.xcworkspace" -scheme "DestinationsExample" -sdk iphonesimulator