diff --git a/.github/workflows/ios-tests.yml b/.github/workflows/ios-tests.yml
index ea4c24c5..6e3daba1 100644
--- a/.github/workflows/ios-tests.yml
+++ b/.github/workflows/ios-tests.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        xcode: [ "26.1" ]
+        xcode: [ "26.2", "26.3", "26.4" ]
         os: [ macos-26 ]
     runs-on: ${{ matrix.os }}
 
@@ -42,7 +42,7 @@ jobs:
         run: |
           set -o pipefail && \
           NSUnbufferedIO=YES \
-          xcrun xcodebuild build -workspace . -scheme Vexil -skipMacroValidation -destination "platform=iOS Simulator,name=iPhone 16e" \
+          xcrun xcodebuild build -workspace . -scheme Vexil -skipMacroValidation -destination "platform=iOS Simulator,name=iPhone 17" \
           | xcbeautify --renderer github-actions
 
   build-ios:
diff --git a/.github/workflows/linux-tests.yml b/.github/workflows/linux-tests.yml
index 4219ac24..592670e1 100644
--- a/.github/workflows/linux-tests.yml
+++ b/.github/workflows/linux-tests.yml
@@ -33,7 +33,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        swift: [ "swift:6.1", "swift:6.2" ]
+        swift: [ "swift:6.1", "swift:6.2", "swift:6.3" ]
         os: [ amazonlinux2, jammy, rhel-ubi9, noble ]
 
     container:
diff --git a/.github/workflows/macos-tests.yml b/.github/workflows/macos-tests.yml
index 62d30d53..7d727f71 100644
--- a/.github/workflows/macos-tests.yml
+++ b/.github/workflows/macos-tests.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        xcode: [ "26.1" ]
+        xcode: [ "26.2", "26.3", "26.4" ]
         os: [ macos-26 ]
     runs-on: ${{ matrix.os }}
 
diff --git a/.github/workflows/tvos-tests.yml b/.github/workflows/tvos-tests.yml
index ff9d635e..401a8740 100644
--- a/.github/workflows/tvos-tests.yml
+++ b/.github/workflows/tvos-tests.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        xcode: [ "26.1" ]
+        xcode: [ "26.2", "26.3", "26.4" ]
         os: [ macos-26 ]
     runs-on: ${{ matrix.os }}
 
diff --git a/.github/workflows/visionos-tests.yml b/.github/workflows/visionos-tests.yml
index 51859479..cc13e472 100644
--- a/.github/workflows/visionos-tests.yml
+++ b/.github/workflows/visionos-tests.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        xcode: [ "26.1" ]
+        xcode: [ "26.2", "26.3", "26.4" ]
         os: [ macos-26 ]
     runs-on: ${{ matrix.os }}
 
diff --git a/.github/workflows/watchos-tests.yml b/.github/workflows/watchos-tests.yml
index f03a337f..15aba7cf 100644
--- a/.github/workflows/watchos-tests.yml
+++ b/.github/workflows/watchos-tests.yml
@@ -28,7 +28,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        xcode: [ "26.1" ]
+        xcode: [ "26.2", "26.3", "26.4" ]
         os: [ macos-26 ]
     runs-on: ${{ matrix.os }}