react · j-piasecki · Sep 30, 2026 · Sep 30, 2026 · Sep 30, 2026 · Sep 30, 2026
diff --git a/packages/react-native/ReactAndroid/build.gradle.kts b/packages/react-native/ReactAndroid/build.gradle.kts
@@ -115,7 +115,6 @@ val preparePrefab by
                       Pair("../ReactCommon/cxxreact/React/", "React/"),
                       // react_featureflags
                       Pair("../ReactCommon/react/featureflags/", "react/featureflags/"),
-                      Pair("../ReactCommon/react/featureflags/React/", "React/"),
                       // react_devtoolsruntimesettings
                       Pair(
                           "../ReactCommon/react/devtoolsruntimesettings/",

diff --git a/packages/react-native/ReactCommon/react/featureflags/CMakeLists.txt b/packages/react-native/ReactCommon/react/featureflags/CMakeLists.txt
@@ -12,7 +12,6 @@ file(GLOB react_featureflags_SRC CONFIGURE_DEPENDS *.cpp)
 add_library(react_featureflags OBJECT ${react_featureflags_SRC})
 
 target_include_directories(react_featureflags PUBLIC ${REACT_COMMON_DIR})
-target_include_directories(react_featureflags INTERFACE ${REACT_COMMON_DIR}/react/featureflags)
 
 target_link_libraries(react_featureflags folly_runtime react_cxxstableapi)
 target_compile_reactnative_options(react_featureflags PRIVATE)

diff --git a/packages/react-native/ReactCommon/react/featureflags/React-featureflags.podspec b/packages/react-native/ReactCommon/react/featureflags/React-featureflags.podspec
@@ -43,11 +43,5 @@ Pod::Spec.new do |s|
   add_rn_third_party_dependencies(s)
   add_rncore_dependency(s)
 
-  s.subspec "featureflagsUmbrella" do |ss|
-    ss.source_files        = "React/*.h"
-    ss.header_dir          = ""
-    ss.header_mappings_dir = "."
-  end
-
   mark_as_react_native_build(s)
 end
diff --git a/packages/react-native/ReactCommon/react/featureflags/React/FeatureFlags.h b/packages/react-native/ReactCommon/react/featureflags/React/FeatureFlags.h
diff --git a/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.h b/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlags.h
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<03873d0e7381921dc1ed1372eec991c0>>
+ * @generated SignedSource<<4c93a39dd2a8ee5ba24f3f8bc99ac1ae>>
  */
 
 /**
@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 #include <react/featureflags/ReactNativeFeatureFlagsAccessor.h>
 #include <react/featureflags/ReactNativeFeatureFlagsProvider.h>

diff --git a/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsAccessor.h b/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsAccessor.h
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<bd4f6cafcd3c1bd4217792d0cf25dbe5>>
+ * @generated SignedSource<<3e557788d6bd43975af8dcb392beef94>>
  */
 
 /**
@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 #include <react/featureflags/ReactNativeFeatureFlagsProvider.h>
 #include <array>

diff --git a/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsDefaults.h b/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsDefaults.h
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<f09ab21f8e13dddf1b548cb8e156837e>>
+ * @generated SignedSource<<07754aa6f05f6219f95a7b9a2e83ba49>>
  */
 
 /**
@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 #include <react/featureflags/ReactNativeFeatureFlagsProvider.h>
 

diff --git a/...ages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsDynamicProvider.h b/...ages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsDynamicProvider.h
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<ae3d44a13f9aa325303d58a5f50aac51>>
+ * @generated SignedSource<<feee721a90dc8eb3371e87778bdbccc7>>
  */
 
 /**
@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 #include <folly/dynamic.h>
 #include <react/featureflags/ReactNativeFeatureFlagsDefaults.h>

diff --git a/...s/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsOverridesOSSCanary.h b/...s/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsOverridesOSSCanary.h
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<c26b8f81fcc99469d0535a89bac18280>>
+ * @generated SignedSource<<94c1abd04adec2f81634da6786979552>>
  */
 
 /**
@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 #include <react/featureflags/ReactNativeFeatureFlagsOverridesOSSStable.h>
 

diff --git a/...t-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsOverridesOSSExperimental.h b/...t-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsOverridesOSSExperimental.h
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<ed015255bfc4c47dfb63b99bc8146b78>>
+ * @generated SignedSource<<03cfd37618eb47d4612a78af04c9332f>>
  */
 
 /**
@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 #include <react/featureflags/ReactNativeFeatureFlagsOverridesOSSCanary.h>
 

diff --git a/...s/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsOverridesOSSStable.h b/...s/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsOverridesOSSStable.h
@@ -7,7 +7,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 #include <react/featureflags/ReactNativeFeatureFlagsDefaults.h>
 

diff --git a/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsProvider.h b/packages/react-native/ReactCommon/react/featureflags/ReactNativeFeatureFlagsProvider.h
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<51165e8390c454fe7f3bb07bb3a69bb9>>
+ * @generated SignedSource<<bad95ec81f97c64414c52106fd0a1b7e>>
  */
 
 /**
@@ -19,7 +19,7 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/PrivateGuard.h>
 
 namespace facebook::react {
 

diff --git a/packages/react-native/ReactCommon/react/featureflags/ReactNativePublicFeatureFlags.cpp b/packages/react-native/ReactCommon/react/featureflags/ReactNativePublicFeatureFlags.cpp
@@ -0,0 +1,49 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @generated SignedSource<<95f86b3476aeff097f532b10cabf067e>>
+ */
+
+/**
+ * IMPORTANT: Do NOT modify this file directly.
+ *
+ * To change the definition of the flags, edit
+ *   packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js.
+ *
+ * To regenerate this code, run the following script from the repo root:
+ *   yarn featureflags --update
+ */
+
+#include "ReactNativeFeatureFlags.h"
+#include "ReactNativePublicFeatureFlags.h"
+
+namespace facebook::react {
+
+bool ReactNativeFeatureFlags_DO_NOT_USE::enableAccumulatedUpdatesInRawPropsAndroid() {
+  return ReactNativeFeatureFlags::enableAccumulatedUpdatesInRawPropsAndroid();
+}
+
+bool ReactNativeFeatureFlags_DO_NOT_USE::enableCppPropsIteratorSetter() {
+  return ReactNativeFeatureFlags::enableCppPropsIteratorSetter();
+}
+
+bool ReactNativeFeatureFlags_DO_NOT_USE::enableExclusivePropsUpdateAndroid() {
+  return ReactNativeFeatureFlags::enableExclusivePropsUpdateAndroid();
+}
+
+bool ReactNativeFeatureFlags_DO_NOT_USE::enableNativeCSSParsing() {
+  return ReactNativeFeatureFlags::enableNativeCSSParsing();
+}
+
+bool ReactNativeFeatureFlags_DO_NOT_USE::enablePropsUpdateReconciliationAndroid() {
+  return ReactNativeFeatureFlags::enablePropsUpdateReconciliationAndroid();
+}
+
+bool ReactNativeFeatureFlags_DO_NOT_USE::useSharedAnimatedBackend() {
+  return ReactNativeFeatureFlags::useSharedAnimatedBackend();
+}
+
+} // namespace facebook::react
diff --git a/packages/react-native/ReactCommon/react/featureflags/ReactNativePublicFeatureFlags.h b/packages/react-native/ReactCommon/react/featureflags/ReactNativePublicFeatureFlags.h
@@ -0,0 +1,66 @@
+/*
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ *
+ * @generated SignedSource<<39037a69a47b86d0c6643d90f4058002>>
+ */
+
+/**
+ * IMPORTANT: Do NOT modify this file directly.
+ *
+ * To change the definition of the flags, edit
+ *   packages/react-native/scripts/featureflags/ReactNativeFeatureFlags.config.js.
+ *
+ * To regenerate this code, run the following script from the repo root:
+ *   yarn featureflags --update
+ */
+
+#pragma once
+
+#include <string>
+
+#ifndef RN_EXPORT
+#define RN_EXPORT __attribute__((visibility("default")))
+#endif
+
+namespace facebook::react {
+
+/**
+ * This class provides public access to select internal React Native feature flags.
+ */
+class ReactNativeFeatureFlags_DO_NOT_USE {
+ public:
+  /**
+   * When enabled, Android will accumulate updates in rawProps to reduce the number of mounting instructions for cascading re-renders.
+   */
+  RN_EXPORT static bool enableAccumulatedUpdatesInRawPropsAndroid();
+
+  /**
+   * Enable prop iterator setter-style construction of Props in C++ (this flag is not used in Java).
+   */
+  RN_EXPORT static bool enableCppPropsIteratorSetter();
+
+  /**
+   * When enabled, Android will disable Props 1.5 raw value merging when Props 2.0 is available.
+   */
+  RN_EXPORT static bool enableExclusivePropsUpdateAndroid();
+
+  /**
+   * Parse CSS strings using the Fabric CSS parser instead of ViewConfig processing
+   */
+  RN_EXPORT static bool enableNativeCSSParsing();
+
+  /**
+   * When enabled, Android will receive prop updates based on the differences between the last rendered shadow node and the last committed shadow node.
+   */
+  RN_EXPORT static bool enablePropsUpdateReconciliationAndroid();
+
+  /**
+   * Use shared animation backend in C++ Animated
+   */
+  RN_EXPORT static bool useSharedAnimatedBackend();
+};
+
+} // namespace facebook::react
diff --git a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/CxxTurboModuleUtils.h b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/CxxTurboModuleUtils.h
@@ -9,7 +9,7 @@
 
 #include <react/cxxstableapi/UmbrellaGuard.h>
 
-#include <ReactCommon/CallInvoker.h>
+#include <React/CallInvoker.h>
 #include <ReactCommon/TurboModule.h>
 #include <functional>
 #include <memory>

diff --git a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModule.h b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModule.h
@@ -15,8 +15,8 @@
 
 #include <jsi/jsi.h>
 
-#include <ReactCommon/CallInvoker.h>
-#include <react/bridging/EventEmitter.h>
+#include <React/Bridging.h>
+#include <React/CallInvoker.h>
 
 namespace facebook::react {
 

diff --git a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleBinding.h b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleBinding.h
@@ -11,8 +11,8 @@
 
 #include <string>
 
+#include <React/Bridging.h>
 #include <jsi/jsi.h>
-#include <react/bridging/LongLivedObject.h>
 
 #include <ReactCommon/TurboModule.h>
 

diff --git a/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.h b/packages/react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleUtils.h
@@ -9,8 +9,8 @@
 
 #include <react/cxxstableapi/UmbrellaGuard.h>
 
+#include <React/Bridging.h>
 #include <jsi/jsi.h>
-#include <react/bridging/LongLivedObject.h>
 #include <cassert>
 #include <functional>
 #include <string>

diff --git a/...react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleWithJSIBindings.h b/...react-native/ReactCommon/react/nativemodule/core/ReactCommon/TurboModuleWithJSIBindings.h
@@ -9,7 +9,7 @@
 
 #include <react/cxxstableapi/UmbrellaGuard.h>
 
-#include <ReactCommon/CallInvoker.h>
+#include <React/CallInvoker.h>
 #include <jsi/jsi.h>
 
 namespace facebook::react {

diff --git a/...native/ReactCommon/react/nativemodule/core/platform/android/ReactCommon/JavaTurboModule.h b/...native/ReactCommon/react/nativemodule/core/platform/android/ReactCommon/JavaTurboModule.h
@@ -11,10 +11,10 @@
 
 #include <string>
 
-#include <ReactCommon/CallInvoker.h>
+#include <React/Bridging.h>
+#include <React/CallInvoker.h>
 #include <ReactCommon/TurboModule.h>
 #include <jsi/jsi.h>
-#include <react/bridging/CallbackWrapper.h>
 #include <react/jni/JCallback.h>
 
 namespace facebook::react {

diff --git a/...-native/ReactCommon/react/nativemodule/core/platform/ios/React-NativeModulesApple.podspec b/...-native/ReactCommon/react/nativemodule/core/platform/ios/React-NativeModulesApple.podspec
@@ -37,6 +37,7 @@ Pod::Spec.new do |s|
     s.source_files = podspec_sources("ReactCommon/**/*.{mm,cpp,h}", "ReactCommon/**/*.{h}")
 
     s.dependency "ReactCommon/turbomodule/core"
+    s.dependency "ReactCommon/turbomodule/coreUmbrella"
     s.dependency "React-bridging"
     s.dependency "React-callinvoker"
     s.dependency "React-Core"