diff --git a/.github/workflows/macos.yml b/.github/workflows/macos.yml
index f299b1c8..0dac6b2b 100644
--- a/.github/workflows/macos.yml
+++ b/.github/workflows/macos.yml
@@ -13,7 +13,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [macos-15]
-        xcode-version: [16.0]   # Swift 6.0
+        xcode-version: ["16.0"]   # Swift 6.0
     runs-on: ${{ matrix.os }}
     env:
       OPENGRAPH_WERROR: 1
diff --git a/Package.resolved b/Package.resolved
index 8ccf8439..b6ea544c 100644
--- a/Package.resolved
+++ b/Package.resolved
@@ -7,7 +7,7 @@
       "location" : "https://github.com/OpenSwiftUIProject/DarwinPrivateFrameworks.git",
       "state" : {
         "branch" : "main",
-        "revision" : "e12014b79f31a1483d7633f188c520fdf40f79c1"
+        "revision" : "d115c29b7468940969b0c2f5cb0d612a28563a02"
       }
     },
     {
diff --git a/Sources/OpenGraph/Attribute/Attribute/AnyAttribute.swift b/Sources/OpenGraph/Attribute/Attribute/AnyAttribute.swift
index cba4296b..a9eaef40 100644
--- a/Sources/OpenGraph/Attribute/Attribute/AnyAttribute.swift
+++ b/Sources/OpenGraph/Attribute/Attribute/AnyAttribute.swift
@@ -62,7 +62,7 @@ extension AnyAttribute {
     public var _bodyPointer: UnsafeRawPointer {
         info.body
     }
-    
+
     public var valueType: Any.Type {
         info.type.pointee.valueTypeID.type
     }
@@ -97,3 +97,10 @@ extension AnyAttribute {
         body: (UnsafeMutableRawPointer) -> Void
     )
 }
+
+extension [AnyAttribute] {
+    @_transparent
+    public var anyInputsChanged: Bool {
+        __OGGraphAnyInputsChanged(self, count)
+    }
+}
diff --git a/Sources/OpenGraph_SPI/Graph/OGGraph.cpp b/Sources/OpenGraph_SPI/Graph/OGGraph.cpp
index c16789d7..3e283367 100644
--- a/Sources/OpenGraph_SPI/Graph/OGGraph.cpp
+++ b/Sources/OpenGraph_SPI/Graph/OGGraph.cpp
@@ -207,3 +207,8 @@ void OGGraphSetNeedsUpdate(OGGraphRef graph) {
     }
     // graph->context->set_needs_update();
 }
+
+bool OGGraphAnyInputsChanged(const OGAttribute *inputs, size_t count) {
+    // TODO
+    return false;
+}
diff --git a/Sources/OpenGraph_SPI/include/OGBase.h b/Sources/OpenGraph_SPI/include/OGBase.h
index b44fe9a5..65c157b3 100644
--- a/Sources/OpenGraph_SPI/include/OGBase.h
+++ b/Sources/OpenGraph_SPI/include/OGBase.h
@@ -43,6 +43,16 @@
 #define OG_CONSTEXPR
 #endif
 
+#if !defined(__counted_by)
+#if __has_attribute(__counted_by__)
+#define __counted_by(N) __attribute__((__counted_by__(N)))
+#else
+#define __counted_by(N)
+#endif
+#endif
+
+#define OG_COUNTED_BY(N) __counted_by(N)
+
 #include "OGSwiftSupport.h"
 #include "OGTargetConditionals.h"
 #include <CoreFoundation/CoreFoundation.h>
diff --git a/Sources/OpenGraph_SPI/include/OGGraph.h b/Sources/OpenGraph_SPI/include/OGGraph.h
index 37154bfa..b8f2a029 100644
--- a/Sources/OpenGraph_SPI/include/OGGraph.h
+++ b/Sources/OpenGraph_SPI/include/OGGraph.h
@@ -103,6 +103,10 @@ OG_EXPORT
 OG_REFINED_FOR_SWIFT
 void OGGraphSetNeedsUpdate(OGGraphRef graph) OG_SWIFT_NAME(OGGraphRef.setNeedsUpdate(self:));
 
+OG_EXPORT
+OG_REFINED_FOR_SWIFT
+bool OGGraphAnyInputsChanged(const OGAttribute *inputs OG_COUNTED_BY(count), size_t count);
+
 OG_EXTERN_C_END
 
 OG_ASSUME_NONNULL_END