From a5d17c469fb7702e6772031ede21b5d5bd0adc5f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Dawid=20Ma=C5=82ecki?= <maleckidawid@meta.com>
Date: Mon, 12 Oct 2026 06:59:53 -0700
Subject: [PATCH] Make LayoutConformance component headers for-frameworks
 (#58929)

Summary:

Move `LayoutConformanceComponentDescriptor.h`, `LayoutConformanceProps.h` and `LayoutConformanceShadowNode.h` from the public tier of the C++ stable API to the for-frameworks tier, and remove them from the `<React/View.h>` umbrella.

These headers implement the experimental `LayoutConformance` core component. Native component authors do not use them, but a platform that registers React Native's core components does: `YogaLayoutableShadowNode::resolveErrata` checks for `LayoutConformanceShadowNode` with a `dynamic_cast` to choose the Yoga errata, so a platform has to register React Native's own descriptor for the component to have any effect. That makes them framework-author API rather than private headers. The `LayoutConformance` enum and its conversions stay public in `primitives.h` and `conversions.h`.

Changelog: [Internal]

Reviewed By: cipolleschi

Differential Revision: D123895702
---
 .../react/renderer/components/view/CMakeLists.txt     |  2 +-
 .../view/LayoutConformanceComponentDescriptor.h       |  4 ++--
 .../renderer/components/view/LayoutConformanceProps.h |  7 +++----
 .../components/view/LayoutConformanceShadowNode.h     |  5 ++---
 .../react/renderer/components/view/React/View.h       |  4 +---
 .../cxx-api/api-snapshots/ReactAndroidDebugCxx.api    | 11 -----------
 .../cxx-api/api-snapshots/ReactAndroidNewarchCxx.api  | 11 -----------
 .../cxx-api/api-snapshots/ReactAndroidReleaseCxx.api  | 11 -----------
 scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api  | 11 -----------
 .../cxx-api/api-snapshots/ReactAppleNewarchCxx.api    | 11 -----------
 .../cxx-api/api-snapshots/ReactAppleReleaseCxx.api    | 11 -----------
 scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api | 11 -----------
 .../cxx-api/api-snapshots/ReactCommonNewarchCxx.api   | 11 -----------
 .../cxx-api/api-snapshots/ReactCommonReleaseCxx.api   | 11 -----------
 14 files changed, 9 insertions(+), 112 deletions(-)

diff --git a/packages/react-native/ReactCommon/react/renderer/components/view/CMakeLists.txt b/packages/react-native/ReactCommon/react/renderer/components/view/CMakeLists.txt
index 7e2cf030f990..6e05d8d09599 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/view/CMakeLists.txt
+++ b/packages/react-native/ReactCommon/react/renderer/components/view/CMakeLists.txt
@@ -23,7 +23,7 @@ react_native_android_selector(platform_DIR
         ${CMAKE_CURRENT_SOURCE_DIR}/platform/android/
         ${CMAKE_CURRENT_SOURCE_DIR}/platform/cxx/)
 target_include_directories(rrc_view PUBLIC ${REACT_COMMON_DIR} ${platform_DIR})
-target_include_directories(rrc_view INTERFACE ${REACT_COMMON_DIR}/react/renderer/components/view)
+target_include_directories(rrc_view PUBLIC ${REACT_COMMON_DIR}/react/renderer/components/view)
 
 target_link_libraries(rrc_view
         folly_runtime
diff --git a/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceComponentDescriptor.h b/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceComponentDescriptor.h
index 55b3389958fc..62dab54cd3c2 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceComponentDescriptor.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceComponentDescriptor.h
@@ -7,10 +7,10 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/FrameworksGuard.h>
 
+#include <React/RendererCore.h>
 #include <react/renderer/components/view/LayoutConformanceShadowNode.h>
-#include <react/renderer/core/ConcreteComponentDescriptor.h>
 
 namespace facebook::react {
 
diff --git a/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceProps.h b/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceProps.h
index d66dfbfee722..41aef7005ef6 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceProps.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceProps.h
@@ -7,11 +7,10 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/FrameworksGuard.h>
 
-#include <react/renderer/components/view/YogaStylableProps.h>
-#include <react/renderer/components/view/conversions.h>
-#include <react/renderer/core/propsConversions.h>
+#include <React/RendererCore.h>
+#include <React/View.h>
 
 namespace facebook::react {
 
diff --git a/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceShadowNode.h b/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceShadowNode.h
index 40eb27a32865..00bb83485360 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceShadowNode.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/view/LayoutConformanceShadowNode.h
@@ -7,11 +7,10 @@
 
 #pragma once
 
-#include <react/cxxstableapi/UmbrellaGuard.h>
+#include <react/cxxstableapi/FrameworksGuard.h>
 
-#include <react/renderer/components/view/ConcreteViewShadowNode.h>
+#include <React/View.h>
 #include <react/renderer/components/view/LayoutConformanceProps.h>
-#include <react/renderer/components/view/YogaLayoutableShadowNode.h>
 
 namespace facebook::react {
 
diff --git a/packages/react-native/ReactCommon/react/renderer/components/view/React/View.h b/packages/react-native/ReactCommon/react/renderer/components/view/React/View.h
index ce20d40aa0c6..40ce388c76f0 100644
--- a/packages/react-native/ReactCommon/react/renderer/components/view/React/View.h
+++ b/packages/react-native/ReactCommon/react/renderer/components/view/React/View.h
@@ -41,9 +41,6 @@
 #include <react/renderer/components/view/HostPlatformViewEventEmitter.h>
 #include <react/renderer/components/view/HostPlatformViewProps.h>
 #include <react/renderer/components/view/HostPlatformViewTraitsInitializer.h>
-#include <react/renderer/components/view/LayoutConformanceComponentDescriptor.h>
-#include <react/renderer/components/view/LayoutConformanceProps.h>
-#include <react/renderer/components/view/LayoutConformanceShadowNode.h>
 #include <react/renderer/components/view/PointerEvent.h>
 #include <react/renderer/components/view/Touch.h>
 #include <react/renderer/components/view/TouchEvent.h>
@@ -55,6 +52,7 @@
 #include <react/renderer/components/view/YogaLayoutableShadowNode.h>
 #include <react/renderer/components/view/YogaStylableProps.h>
 #include <react/renderer/components/view/accessibilityPropsConversions.h>
+#include <react/renderer/components/view/conversions.h>
 #include <react/renderer/components/view/primitives.h>
 
 #undef RN_UMBRELLA_CONTEXT
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
index bf17995a1b2e..3119d01468a3 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidDebugCxx.api
@@ -376,7 +376,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
 constexpr auto facebook::react::rncore_ModuleProvider;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -424,7 +423,6 @@ using facebook::react::GradientDirection = std::variant<facebook::react::Float,
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::ModalHostViewSupportedOrientationsMask = uint32_t;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
@@ -1724,9 +1722,6 @@ struct facebook::react::JavaTurboModule::InitParams {
   public std::string moduleName;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -3375,12 +3370,6 @@ struct facebook::react::JTurboModuleWithJSIBindings : public facebook::jni::Java
   public static constexpr auto kJavaDescriptor;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api
index 29e51c6d11da..fe587a5eb368 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidNewarchCxx.api
@@ -376,7 +376,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
 constexpr auto facebook::react::rncore_ModuleProvider;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -424,7 +423,6 @@ using facebook::react::GradientDirection = std::variant<facebook::react::Float,
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::ModalHostViewSupportedOrientationsMask = uint32_t;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
@@ -1723,9 +1721,6 @@ struct facebook::react::JavaTurboModule::InitParams {
   public std::string moduleName;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -3368,12 +3363,6 @@ struct facebook::react::JTurboModuleWithJSIBindings : public facebook::jni::Java
   public static constexpr auto kJavaDescriptor;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api b/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
index 29e51c6d11da..fe587a5eb368 100644
--- a/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAndroidReleaseCxx.api
@@ -376,7 +376,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
 constexpr auto facebook::react::rncore_ModuleProvider;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -424,7 +423,6 @@ using facebook::react::GradientDirection = std::variant<facebook::react::Float,
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::ModalHostViewSupportedOrientationsMask = uint32_t;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
@@ -1723,9 +1721,6 @@ struct facebook::react::JavaTurboModule::InitParams {
   public std::string moduleName;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -3368,12 +3363,6 @@ struct facebook::react::JTurboModuleWithJSIBindings : public facebook::jni::Java
   public static constexpr auto kJavaDescriptor;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api b/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api
index ff1bf08374f5..e6347706efe0 100644
--- a/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAppleDebugCxx.api
@@ -3163,7 +3163,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -3210,7 +3209,6 @@ using facebook::react::GradientDirection = std::variant<facebook::react::Float,
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::ModalHostViewSupportedOrientationsMask = uint32_t;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
@@ -4018,9 +4016,6 @@ class facebook::react::JSBigString : public facebook::jsi::Buffer {
   public ~JSBigString() override = default;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -5459,12 +5454,6 @@ struct facebook::react::ImageURLLoaderAttribution {
   public std::string queryRootName;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactAppleNewarchCxx.api b/scripts/cxx-api/api-snapshots/ReactAppleNewarchCxx.api
index c47fe92de8f6..b7b527c6e6f5 100644
--- a/scripts/cxx-api/api-snapshots/ReactAppleNewarchCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAppleNewarchCxx.api
@@ -3155,7 +3155,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -3202,7 +3201,6 @@ using facebook::react::GradientDirection = std::variant<facebook::react::Float,
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::ModalHostViewSupportedOrientationsMask = uint32_t;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
@@ -4009,9 +4007,6 @@ class facebook::react::JSBigString : public facebook::jsi::Buffer {
   public ~JSBigString() override = default;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -5444,12 +5439,6 @@ struct facebook::react::ImageURLLoaderAttribution {
   public std::string queryRootName;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api b/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api
index 065b2049a3d8..4c2ca94eec87 100644
--- a/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactAppleReleaseCxx.api
@@ -3163,7 +3163,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -3210,7 +3209,6 @@ using facebook::react::GradientDirection = std::variant<facebook::react::Float,
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::ModalHostViewSupportedOrientationsMask = uint32_t;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
@@ -4017,9 +4015,6 @@ class facebook::react::JSBigString : public facebook::jsi::Buffer {
   public ~JSBigString() override = default;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -5452,12 +5447,6 @@ struct facebook::react::ImageURLLoaderAttribution {
   public std::string queryRootName;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api b/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api
index 6fd1e1a03a36..95213bccbd3e 100644
--- a/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactCommonDebugCxx.api
@@ -73,7 +73,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -108,7 +107,6 @@ using facebook::react::GradientDirection = std::variant<Float, facebook::react::
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
 using facebook::react::RawPropsPropNameHash = uint32_t;
@@ -833,9 +831,6 @@ class facebook::react::JSBigString : public facebook::jsi::Buffer {
   public ~JSBigString() override = default;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -1842,12 +1837,6 @@ struct facebook::react::FilterFunction {
   public std::variant<Float, facebook::react::DropShadowParams> parameters;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactCommonNewarchCxx.api b/scripts/cxx-api/api-snapshots/ReactCommonNewarchCxx.api
index e384134caa94..60b523cd7895 100644
--- a/scripts/cxx-api/api-snapshots/ReactCommonNewarchCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactCommonNewarchCxx.api
@@ -73,7 +73,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -108,7 +107,6 @@ using facebook::react::GradientDirection = std::variant<Float, facebook::react::
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
 using facebook::react::RawPropsPropNameHash = uint32_t;
@@ -832,9 +830,6 @@ class facebook::react::JSBigString : public facebook::jsi::Buffer {
   public ~JSBigString() override = default;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -1835,12 +1830,6 @@ struct facebook::react::FilterFunction {
   public std::variant<Float, facebook::react::DropShadowParams> parameters;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;
diff --git a/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api b/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api
index e384134caa94..60b523cd7895 100644
--- a/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api
+++ b/scripts/cxx-api/api-snapshots/ReactCommonReleaseCxx.api
@@ -73,7 +73,6 @@ struct facebook::hermes::ISetEventLoopControl : public facebook::jsi::ICast {
 
 const char facebook::react::ViewComponentName[];
 const facebook::react::EventTag facebook::react::EMPTY_EVENT_TAG;
-constexpr char facebook::react::LayoutConformanceShadowNodeComponentName[];
 constexpr facebook::react::ReactNativeVersionType facebook::react::ReactNativeVersion;
 constexpr facebook::react::Tag facebook::react::kNoTag;
 constexpr uint32_t facebook::react::INITIAL_BUCKETS_SIZE;
@@ -108,7 +107,6 @@ using facebook::react::GradientDirection = std::variant<Float, facebook::react::
 using facebook::react::HostPlatformTouch = facebook::react::BaseTouch;
 using facebook::react::HostPlatformViewEventEmitter = facebook::react::BaseViewEventEmitter;
 using facebook::react::ImageSources = std::vector<facebook::react::ImageSource>;
-using facebook::react::LayoutConformanceComponentDescriptor = facebook::react::ConcreteComponentDescriptor<facebook::react::LayoutConformanceShadowNode>;
 using facebook::react::NativeMethodCallFunc = std::function<void()>;
 using facebook::react::PromiseSetupFunctionType = std::function<void(facebook::jsi::Runtime& rt, std::shared_ptr<facebook::react::Promise>)>;
 using facebook::react::RawPropsPropNameHash = uint32_t;
@@ -832,9 +830,6 @@ class facebook::react::JSBigString : public facebook::jsi::Buffer {
   public ~JSBigString() override = default;
 }
 
-class facebook::react::LayoutConformanceShadowNode : public facebook::react::ConcreteShadowNode<facebook::react::LayoutConformanceShadowNodeComponentName, facebook::react::YogaLayoutableShadowNode, facebook::react::LayoutConformanceProps> {
-}
-
 class facebook::react::LayoutableShadowNode : public facebook::react::ShadowNode {
   public LayoutableShadowNode(const facebook::react::ShadowNode& sourceShadowNode, const facebook::react::ShadowNodeFragment& fragment);
   public LayoutableShadowNode(const facebook::react::ShadowNodeFragment& fragment, const facebook::react::ShadowNodeFamily::Shared& family, facebook::react::ShadowNodeTraits traits);
@@ -1835,12 +1830,6 @@ struct facebook::react::FilterFunction {
   public std::variant<Float, facebook::react::DropShadowParams> parameters;
 }
 
-struct facebook::react::LayoutConformanceProps : public facebook::react::YogaStylableProps {
-  public LayoutConformanceProps() = default;
-  public LayoutConformanceProps(const facebook::react::PropsParserContext& context, const facebook::react::LayoutConformanceProps& sourceProps, const facebook::react::RawProps& rawProps);
-  public facebook::react::LayoutConformance mode;
-}
-
 struct facebook::react::LayoutConstraints {
   public facebook::react::LayoutDirection layoutDirection;
   public facebook::react::Size clamp(const facebook::react::Size& size) const;