diff --git a/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.h b/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.h
index 13af75da4ac5..c59154f956bd 100644
--- a/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.h
+++ b/packages/react-native/React/Fabric/Mounting/ComponentViews/ScrollView/RCTScrollViewComponentView.h
@@ -36,7 +36,7 @@ NS_ASSUME_NONNULL_BEGIN
 /*
  * Returns an actual UIScrollView that this component uses under the hood.
  */
-@property (nonatomic, strong, readonly) UIScrollView *scrollView;
+@property (nonatomic, strong, readwrite) UIScrollView *scrollView;
 
 /** Focus area of newly-activated text input relative to the window to compare against UIKeyboardFrameBegin/End */
 @property (nonatomic, assign) CGRect firstResponderFocus;
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
index 2bf4a111a822..0f1d75b7cd0f 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
@@ -3871,6 +3871,11 @@ class facebook::react::NativeVibrationSpecJSI : public facebook::react::JavaTurb
   public NativeVibrationSpecJSI(const facebook::react::JavaTurboModule::InitParams& params);
 }
 
+class facebook::react::NativeViewTransition : public facebook::react::NativeViewTransitionCxxSpec<facebook::react::NativeViewTransition> {
+  public NativeViewTransition(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public std::optional<facebook::jsi::Object> getViewTransitionInstance(facebook::jsi::Runtime& rt, const std::string& name, const std::string& pseudo);
+}
+
 class facebook::react::NativeWebSocketModuleSpecJSI : public facebook::react::JavaTurboModule {
   public NativeWebSocketModuleSpecJSI(const facebook::react::JavaTurboModule::InitParams& params);
 }
@@ -5657,6 +5662,7 @@ enum facebook::react::BlendMode {
   Multiply,
   Normal,
   Overlay,
+  PlusLighter,
   Saturation,
   Screen,
   SoftLight,
@@ -8920,6 +8926,12 @@ class facebook::react::NativeVibrationCxxSpec : public facebook::react::TurboMod
   public static constexpr std::string_view kModuleName;
 }
 
+template <typename T>
+class facebook::react::NativeViewTransitionCxxSpec : public facebook::react::TurboModule {
+  protected NativeViewTransitionCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public static constexpr std::string_view kModuleName;
+}
+
 template <typename T>
 class facebook::react::NativeWebSocketModuleCxxSpec : public facebook::react::TurboModule {
   protected NativeWebSocketModuleCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
@@ -10673,6 +10685,7 @@ class facebook::react::jsinspector_modern::RuntimeAgent {
   public const facebook::react::jsinspector_modern::ExecutionContextDescription& getExecutionContextDescription() const;
   public facebook::react::jsinspector_modern::RuntimeAgent::ExportedState getExportedState();
   public void notifyBindingCalled(const std::string& bindingName, const std::string& payload);
+  public void notifyFastRefreshComplete();
   public ~RuntimeAgent();
 }
 
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
index fa42ec24e1c6..9ffa88874295 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
@@ -3868,6 +3868,11 @@ class facebook::react::NativeVibrationSpecJSI : public facebook::react::JavaTurb
   public NativeVibrationSpecJSI(const facebook::react::JavaTurboModule::InitParams& params);
 }
 
+class facebook::react::NativeViewTransition : public facebook::react::NativeViewTransitionCxxSpec<facebook::react::NativeViewTransition> {
+  public NativeViewTransition(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public std::optional<facebook::jsi::Object> getViewTransitionInstance(facebook::jsi::Runtime& rt, const std::string& name, const std::string& pseudo);
+}
+
 class facebook::react::NativeWebSocketModuleSpecJSI : public facebook::react::JavaTurboModule {
   public NativeWebSocketModuleSpecJSI(const facebook::react::JavaTurboModule::InitParams& params);
 }
@@ -5648,6 +5653,7 @@ enum facebook::react::BlendMode {
   Multiply,
   Normal,
   Overlay,
+  PlusLighter,
   Saturation,
   Screen,
   SoftLight,
@@ -8911,6 +8917,12 @@ class facebook::react::NativeVibrationCxxSpec : public facebook::react::TurboMod
   public static constexpr std::string_view kModuleName;
 }
 
+template <typename T>
+class facebook::react::NativeViewTransitionCxxSpec : public facebook::react::TurboModule {
+  protected NativeViewTransitionCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public static constexpr std::string_view kModuleName;
+}
+
 template <typename T>
 class facebook::react::NativeWebSocketModuleCxxSpec : public facebook::react::TurboModule {
   protected NativeWebSocketModuleCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
@@ -10529,6 +10541,7 @@ class facebook::react::jsinspector_modern::RuntimeAgent {
   public const facebook::react::jsinspector_modern::ExecutionContextDescription& getExecutionContextDescription() const;
   public facebook::react::jsinspector_modern::RuntimeAgent::ExportedState getExportedState();
   public void notifyBindingCalled(const std::string& bindingName, const std::string& payload);
+  public void notifyFastRefreshComplete();
   public ~RuntimeAgent();
 }
 
diff --git a/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api b/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api
index 00b69bc26608..042c53b54287 100644
--- a/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api
@@ -1987,8 +1987,8 @@ interface RCTScrollView : public RCTView <UIScrollViewDelegate, RCTScrollablePro
 interface RCTScrollViewComponentView {
   protected  __pad0__;
   public @property (assign) CGRect firstResponderFocus;
+  public @property (strong) UIScrollView* scrollView;
   public @property (strong, readonly) RCTGenericDelegateSplitter<id<UIScrollViewDelegate>>* scrollViewDelegateSplitter;
-  public @property (strong, readonly) UIScrollView* scrollView;
   public @property (strong, readonly) UIView* containerView;
   public @property (weak) UIView* firstResponderViewOutsideScrollView;
   public virtual static _Nullable RCTScrollViewComponentView* findScrollViewComponentViewForView:(UIView* view);
@@ -6469,6 +6469,11 @@ class facebook::react::NativeVibrationSpecJSI : public facebook::react::ObjCTurb
   public NativeVibrationSpecJSI(const facebook::react::ObjCTurboModule::InitParams& params);
 }
 
+class facebook::react::NativeViewTransition : public facebook::react::NativeViewTransitionCxxSpec<facebook::react::NativeViewTransition> {
+  public NativeViewTransition(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public std::optional<facebook::jsi::Object> getViewTransitionInstance(facebook::jsi::Runtime& rt, const std::string& name, const std::string& pseudo);
+}
+
 class facebook::react::NativeWebSocketModuleSpecJSI : public facebook::react::ObjCTurboModule {
   public NativeWebSocketModuleSpecJSI(const facebook::react::ObjCTurboModule::InitParams& params);
 }
@@ -8262,6 +8267,7 @@ enum facebook::react::BlendMode {
   Multiply,
   Normal,
   Overlay,
+  PlusLighter,
   Saturation,
   Screen,
   SoftLight,
@@ -11295,6 +11301,12 @@ class facebook::react::NativeVibrationCxxSpec : public facebook::react::TurboMod
   public static constexpr std::string_view kModuleName;
 }
 
+template <typename T>
+class facebook::react::NativeViewTransitionCxxSpec : public facebook::react::TurboModule {
+  protected NativeViewTransitionCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public static constexpr std::string_view kModuleName;
+}
+
 template <typename T>
 class facebook::react::NativeWebSocketModuleCxxSpec : public facebook::react::TurboModule {
   protected NativeWebSocketModuleCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
@@ -12964,6 +12976,7 @@ class facebook::react::jsinspector_modern::RuntimeAgent {
   public const facebook::react::jsinspector_modern::ExecutionContextDescription& getExecutionContextDescription() const;
   public facebook::react::jsinspector_modern::RuntimeAgent::ExportedState getExportedState();
   public void notifyBindingCalled(const std::string& bindingName, const std::string& payload);
+  public void notifyFastRefreshComplete();
   public ~RuntimeAgent();
 }
 
diff --git a/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api b/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api
index ff85b36496b9..fef91b88e0c8 100644
--- a/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api
@@ -1987,8 +1987,8 @@ interface RCTScrollView : public RCTView <UIScrollViewDelegate, RCTScrollablePro
 interface RCTScrollViewComponentView {
   protected  __pad0__;
   public @property (assign) CGRect firstResponderFocus;
+  public @property (strong) UIScrollView* scrollView;
   public @property (strong, readonly) RCTGenericDelegateSplitter<id<UIScrollViewDelegate>>* scrollViewDelegateSplitter;
-  public @property (strong, readonly) UIScrollView* scrollView;
   public @property (strong, readonly) UIView* containerView;
   public @property (weak) UIView* firstResponderViewOutsideScrollView;
   public virtual static _Nullable RCTScrollViewComponentView* findScrollViewComponentViewForView:(UIView* view);
@@ -6466,6 +6466,11 @@ class facebook::react::NativeVibrationSpecJSI : public facebook::react::ObjCTurb
   public NativeVibrationSpecJSI(const facebook::react::ObjCTurboModule::InitParams& params);
 }
 
+class facebook::react::NativeViewTransition : public facebook::react::NativeViewTransitionCxxSpec<facebook::react::NativeViewTransition> {
+  public NativeViewTransition(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public std::optional<facebook::jsi::Object> getViewTransitionInstance(facebook::jsi::Runtime& rt, const std::string& name, const std::string& pseudo);
+}
+
 class facebook::react::NativeWebSocketModuleSpecJSI : public facebook::react::ObjCTurboModule {
   public NativeWebSocketModuleSpecJSI(const facebook::react::ObjCTurboModule::InitParams& params);
 }
@@ -8253,6 +8258,7 @@ enum facebook::react::BlendMode {
   Multiply,
   Normal,
   Overlay,
+  PlusLighter,
   Saturation,
   Screen,
   SoftLight,
@@ -11286,6 +11292,12 @@ class facebook::react::NativeVibrationCxxSpec : public facebook::react::TurboMod
   public static constexpr std::string_view kModuleName;
 }
 
+template <typename T>
+class facebook::react::NativeViewTransitionCxxSpec : public facebook::react::TurboModule {
+  protected NativeViewTransitionCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public static constexpr std::string_view kModuleName;
+}
+
 template <typename T>
 class facebook::react::NativeWebSocketModuleCxxSpec : public facebook::react::TurboModule {
   protected NativeWebSocketModuleCxxSpec(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
@@ -12830,6 +12842,7 @@ class facebook::react::jsinspector_modern::RuntimeAgent {
   public const facebook::react::jsinspector_modern::ExecutionContextDescription& getExecutionContextDescription() const;
   public facebook::react::jsinspector_modern::RuntimeAgent::ExportedState getExportedState();
   public void notifyBindingCalled(const std::string& bindingName, const std::string& payload);
+  public void notifyFastRefreshComplete();
   public ~RuntimeAgent();
 }
 
diff --git a/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api b/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api
index 75f39541e400..bc60935ffa82 100644
--- a/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api
@@ -2519,6 +2519,11 @@ class facebook::react::NativeToJsBridge {
   public void* getJavaScriptContext();
 }
 
+class facebook::react::NativeViewTransition : public NativeViewTransitionCxxSpec<facebook::react::NativeViewTransition> {
+  public NativeViewTransition(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public std::optional<facebook::jsi::Object> getViewTransitionInstance(facebook::jsi::Runtime& rt, const std::string& name, const std::string& pseudo);
+}
+
 class facebook::react::NetworkReporter {
   public bool isDebuggingEnabled() const;
   public static facebook::react::NetworkReporter& getInstance();
@@ -4053,6 +4058,7 @@ enum facebook::react::BlendMode {
   Multiply,
   Normal,
   Overlay,
+  PlusLighter,
   Saturation,
   Screen,
   SoftLight,
@@ -7744,6 +7750,7 @@ class facebook::react::jsinspector_modern::RuntimeAgent {
   public const facebook::react::jsinspector_modern::ExecutionContextDescription& getExecutionContextDescription() const;
   public facebook::react::jsinspector_modern::RuntimeAgent::ExportedState getExportedState();
   public void notifyBindingCalled(const std::string& bindingName, const std::string& payload);
+  public void notifyFastRefreshComplete();
   public ~RuntimeAgent();
 }
 
diff --git a/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api b/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api
index 3c654470f00b..40f2525cd2b9 100644
--- a/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api
@@ -2516,6 +2516,11 @@ class facebook::react::NativeToJsBridge {
   public void* getJavaScriptContext();
 }
 
+class facebook::react::NativeViewTransition : public NativeViewTransitionCxxSpec<facebook::react::NativeViewTransition> {
+  public NativeViewTransition(std::shared_ptr<facebook::react::CallInvoker> jsInvoker);
+  public std::optional<facebook::jsi::Object> getViewTransitionInstance(facebook::jsi::Runtime& rt, const std::string& name, const std::string& pseudo);
+}
+
 class facebook::react::NetworkReporter {
   public bool isDebuggingEnabled() const;
   public static facebook::react::NetworkReporter& getInstance();
@@ -4044,6 +4049,7 @@ enum facebook::react::BlendMode {
   Multiply,
   Normal,
   Overlay,
+  PlusLighter,
   Saturation,
   Screen,
   SoftLight,
@@ -7735,6 +7741,7 @@ class facebook::react::jsinspector_modern::RuntimeAgent {
   public const facebook::react::jsinspector_modern::ExecutionContextDescription& getExecutionContextDescription() const;
   public facebook::react::jsinspector_modern::RuntimeAgent::ExportedState getExportedState();
   public void notifyBindingCalled(const std::string& bindingName, const std::string& payload);
+  public void notifyFastRefreshComplete();
   public ~RuntimeAgent();
 }