diff --git a/.github/workflows/nightly.yaml b/.github/workflows/nightly.yaml
index e03c0f4..0262412 100644
--- a/.github/workflows/nightly.yaml
+++ b/.github/workflows/nightly.yaml
@@ -16,15 +16,10 @@ jobs:
           - macos: macos-15
             ios: ^18
             xcode: ^16
-          - macos: macos-15
-            ios: ^18
-            xcode: ^26
-          - macos: macos-15
-            ios: ^26
-            xcode: ^26
-          - macos: macos-14
-            ios: ^17
-            xcode: ^15
+          # - macos: macos-15
+          #   ios: ^26
+          #   xcode: ^26
+          # Note: iOS 26 simulator is not yet available on GitHub runners
     uses: ./.github/workflows/reusable-workflow.yaml
     with:
       lib: ${{ matrix.lib }}
@@ -42,15 +37,10 @@ jobs:
           - macos: macos-15
             ios: ^18
             xcode: ^16
-          - macos: macos-15
-            ios: ^18
-            xcode: ^26
-          - macos: macos-15
-            ios: ^26
-            xcode: ^26
-          - macos: macos-14
-            ios: ^17
-            xcode: ^15
+          # - macos: macos-15
+          #   ios: ^26
+          #   xcode: ^26
+          # Note: iOS 26 simulator is not yet available on GitHub runners
     uses: ./.github/workflows/reusable-workflow.yaml
     with:
       lib: ${{ matrix.lib }}
diff --git a/.github/workflows/pr.yaml b/.github/workflows/pr.yaml
index 1710c06..cc4f1aa 100644
--- a/.github/workflows/pr.yaml
+++ b/.github/workflows/pr.yaml
@@ -62,9 +62,10 @@ jobs:
           - macos: macos-15
             ios: ^18
             xcode: ^16
-          - macos: macos-15
-            ios: ^26
-            xcode: ^26
+          # - macos: macos-15
+          #   ios: ^26
+          #   xcode: ^26
+          # Note: iOS 26 simulator is not yet available on GitHub runners
     uses: ./.github/workflows/reusable-workflow.yaml
     with:
       lib: ${{ matrix.lib }}
@@ -84,9 +85,10 @@ jobs:
           - macos: macos-15
             ios: ^18
             xcode: ^16
-          - macos: macos-15
-            ios: ^26
-            xcode: ^26
+          # - macos: macos-15
+          #   ios: ^26
+          #   xcode: ^26
+          # Note: iOS 26 simulator is not yet available on GitHub runners
     uses: ./.github/workflows/reusable-workflow.yaml
     with:
       lib: ${{ matrix.lib }}