diff --git a/packages/react-native/Libraries/Animated/__tests__/AnimatedBackend-itest.js b/packages/react-native/Libraries/Animated/__tests__/AnimatedBackend-itest.js
index e36beafdfe382f..3886f2ac320866 100644
--- a/packages/react-native/Libraries/Animated/__tests__/AnimatedBackend-itest.js
+++ b/packages/react-native/Libraries/Animated/__tests__/AnimatedBackend-itest.js
@@ -70,16 +70,6 @@ test('animated opacity', () => {
     _opacityAnimation?.stop();
   });
 
-  // TODO: T246961305 rendered output should be <rn-view opacity="0" /> at this point
-  expect(root.getRenderedOutput({props: ['opacity']}).toJSX()).toEqual(
-    <rn-view />,
-  );
-
-  // Re-render
-  Fantom.runTask(() => {
-    root.render(<MyApp />);
-  });
-
   expect(root.getRenderedOutput({props: ['opacity']}).toJSX()).toEqual(
     <rn-view opacity="0" />,
   );
diff --git a/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.cpp b/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.cpp
index 7341352e0cc336..6a92aa05602328 100644
--- a/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.cpp
@@ -244,8 +244,7 @@ void NativeAnimatedNodesManager::connectAnimatedNodeToShadowNodeFamily(
   react_native_assert(propsNodeTag);
   auto node = getAnimatedNode<PropsAnimatedNode>(propsNodeTag);
   if (node != nullptr && family != nullptr) {
-    std::lock_guard<std::mutex> lock(tagToShadowNodeFamilyMutex_);
-    tagToShadowNodeFamily_[family->getTag()] = family;
+    node->connectToShadowNodeFamily(family);
   } else {
     LOG(WARNING)
         << "Cannot ConnectAnimatedNodeToShadowNodeFamily, animated node has to be props type";
@@ -261,14 +260,13 @@ void NativeAnimatedNodesManager::disconnectAnimatedNodeFromView(
   auto node = getAnimatedNode<PropsAnimatedNode>(propsNodeTag);
   if (node != nullptr) {
     node->disconnectFromView(viewTag);
+    if (ReactNativeFeatureFlags::useSharedAnimatedBackend()) {
+      node->disconnectFromShadowNodeFamily();
+    }
     {
       std::lock_guard<std::mutex> lock(connectedAnimatedNodesMutex_);
       connectedAnimatedNodes_.erase(viewTag);
     }
-    {
-      std::lock_guard<std::mutex> lock(tagToShadowNodeFamilyMutex_);
-      tagToShadowNodeFamily_.erase(viewTag);
-    }
     updatedNodeTags_.insert(node->tag());
 
     onManagedPropsRemoved(viewTag);
@@ -907,13 +905,17 @@ void NativeAnimatedNodesManager::schedulePropsCommit(
     Tag viewTag,
     const folly::dynamic& props,
     bool layoutStyleUpdated,
-    bool forceFabricCommit) noexcept {
+    bool forceFabricCommit,
+    ShadowNodeFamily::Weak shadowNodeFamily) noexcept {
   if (ReactNativeFeatureFlags::useSharedAnimatedBackend()) {
-    if (layoutStyleUpdated) {
-      mergeObjects(updateViewProps_[viewTag], props);
-    } else {
-      mergeObjects(updateViewPropsDirect_[viewTag], props);
+    if (forceFabricCommit) {
+      shouldRequestAsyncFlush_.insert(viewTag);
     }
+    auto& current = layoutStyleUpdated
+        ? updateViewPropsForBackend_[viewTag]
+        : updateViewPropsDirectForBackend_[viewTag];
+    current.first = std::move(shadowNodeFamily);
+    mergeObjects(current.second, props);
     return;
   }
 
@@ -940,6 +942,32 @@ void NativeAnimatedNodesManager::schedulePropsCommit(
 }
 
 #ifdef RN_USE_ANIMATION_BACKEND
+
+void NativeAnimatedNodesManager::insertMutations(
+    std::unordered_map<Tag, std::pair<ShadowNodeFamily::Weak, folly::dynamic>>&
+        updates,
+    AnimationMutations& mutations,
+    AnimatedPropsBuilder& propsBuilder,
+    bool hasLayoutUpdates) {
+  for (auto& [tag, update] : updates) {
+    auto weakFamily = update.first;
+
+    if (auto family = weakFamily.lock()) {
+      propsBuilder.storeDynamic(update.second);
+      if (shouldRequestAsyncFlush_.contains(tag)) {
+        mutations.asyncFlushSurfaces.insert(family->getSurfaceId());
+      }
+      mutations.batch.push_back(
+          AnimationMutation{
+              .tag = tag,
+              .family = family,
+              .props = propsBuilder.get(),
+              .hasLayoutUpdates = hasLayoutUpdates,
+          });
+    }
+  }
+}
+
 AnimationMutations NativeAnimatedNodesManager::pullAnimationMutations() {
   if (!ReactNativeFeatureFlags::useSharedAnimatedBackend()) {
     return {};
@@ -962,7 +990,7 @@ AnimationMutations NativeAnimatedNodesManager::pullAnimationMutations() {
     task();
   }
 
-  AnimationMutations mutations;
+  AnimationMutations mutations{};
 
   // Step through the animation loop
   if (isAnimationUpdateNeeded()) {
@@ -1007,49 +1035,18 @@ AnimationMutations NativeAnimatedNodesManager::pullAnimationMutations() {
         }
       }
 
-      {
-        std::lock_guard<std::mutex> lock(tagToShadowNodeFamilyMutex_);
-        for (auto& [tag, props] : updateViewPropsDirect_) {
-          auto familyIt = tagToShadowNodeFamily_.find(tag);
-          if (familyIt == tagToShadowNodeFamily_.end()) {
-            continue;
-          }
+      insertMutations(
+          updateViewPropsDirectForBackend_, mutations, propsBuilder);
 
-          auto weakFamily = familyIt->second;
-          if (auto family = weakFamily.lock()) {
-            propsBuilder.storeDynamic(props);
-            mutations.batch.push_back(
-                AnimationMutation{
-                    .tag = tag,
-                    .family = family,
-                    .props = propsBuilder.get(),
-                });
-          }
-          containsChange = true;
-        }
-        for (auto& [tag, props] : updateViewProps_) {
-          auto familyIt = tagToShadowNodeFamily_.find(tag);
-          if (familyIt == tagToShadowNodeFamily_.end()) {
-            continue;
-          }
+      insertMutations(
+          updateViewPropsForBackend_, mutations, propsBuilder, true);
+
+      containsChange = !updateViewPropsForBackend_.empty() ||
+          !updateViewPropsDirectForBackend_.empty();
 
-          auto weakFamily = familyIt->second;
-          if (auto family = weakFamily.lock()) {
-            propsBuilder.storeDynamic(props);
-            mutations.batch.push_back(
-                AnimationMutation{
-                    .tag = tag,
-                    .family = family,
-                    .props = propsBuilder.get(),
-                    .hasLayoutUpdates = true,
-                });
-          }
-          containsChange = true;
-        }
-      }
       if (containsChange) {
-        updateViewPropsDirect_.clear();
-        updateViewProps_.clear();
+        updateViewPropsDirectForBackend_.clear();
+        updateViewPropsForBackend_.clear();
       }
     }
 
@@ -1076,51 +1073,20 @@ AnimationMutations NativeAnimatedNodesManager::pullAnimationMutations() {
 
       isEventAnimationInProgress_ = false;
 
-      {
-        std::lock_guard<std::mutex> lock(tagToShadowNodeFamilyMutex_);
-        for (auto& [tag, props] : updateViewPropsDirect_) {
-          auto familyIt = tagToShadowNodeFamily_.find(tag);
-          if (familyIt == tagToShadowNodeFamily_.end()) {
-            continue;
-          }
+      insertMutations(
+          updateViewPropsDirectForBackend_, mutations, propsBuilder);
 
-          auto weakFamily = familyIt->second;
-          if (auto family = weakFamily.lock()) {
-            propsBuilder.storeDynamic(props);
-            mutations.batch.push_back(
-                AnimationMutation{
-                    .tag = tag,
-                    .family = family,
-                    .props = propsBuilder.get(),
-                });
-          }
-        }
-        for (auto& [tag, props] : updateViewProps_) {
-          auto familyIt = tagToShadowNodeFamily_.find(tag);
-          if (familyIt == tagToShadowNodeFamily_.end()) {
-            continue;
-          }
+      insertMutations(
+          updateViewPropsForBackend_, mutations, propsBuilder, true);
 
-          auto weakFamily = familyIt->second;
-          if (auto family = weakFamily.lock()) {
-            propsBuilder.storeDynamic(props);
-            mutations.batch.push_back(
-                AnimationMutation{
-                    .tag = tag,
-                    .family = family,
-                    .props = propsBuilder.get(),
-                    .hasLayoutUpdates = true,
-                });
-          }
-        }
-      }
-      updateViewProps_.clear();
-      updateViewPropsDirect_.clear();
+      updateViewPropsForBackend_.clear();
+      updateViewPropsDirectForBackend_.clear();
     }
   } else {
     // There is no active animation. Stop the render callback.
     stopRenderCallbackIfNeeded(false);
   }
+  shouldRequestAsyncFlush_.clear();
   return mutations;
 }
 #endif
diff --git a/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.h b/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.h
index 40632cbc1dcf71..9a40a66497f3ab 100644
--- a/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.h
+++ b/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManager.h
@@ -121,6 +121,11 @@ class NativeAnimatedNodesManager {
   void setAnimatedNodeOffset(Tag tag, double offset);
 
 #ifdef RN_USE_ANIMATION_BACKEND
+  void insertMutations(
+      std::unordered_map<Tag, std::pair<ShadowNodeFamily::Weak, folly::dynamic>> &updates,
+      AnimationMutations &mutations,
+      AnimatedPropsBuilder &propsBuilder,
+      bool hasLayoutUpdates = false);
   AnimationMutations pullAnimationMutations();
 #endif
 
@@ -153,7 +158,8 @@ class NativeAnimatedNodesManager {
       Tag viewTag,
       const folly::dynamic &props,
       bool layoutStyleUpdated,
-      bool forceFabricCommit) noexcept;
+      bool forceFabricCommit,
+      ShadowNodeFamily::Weak shadowNodeFamily = {}) noexcept;
 
   /**
    * Commits all pending animated property updates to their respective views.
@@ -260,10 +266,9 @@ class NativeAnimatedNodesManager {
 
   std::unordered_map<Tag, folly::dynamic> updateViewProps_{};
   std::unordered_map<Tag, folly::dynamic> updateViewPropsDirect_{};
-
-  mutable std::mutex tagToShadowNodeFamilyMutex_;
-  std::unordered_map<Tag, std::weak_ptr<const ShadowNodeFamily>> tagToShadowNodeFamily_{};
-
+  std::unordered_map<Tag, std::pair<ShadowNodeFamily::Weak, folly::dynamic>> updateViewPropsForBackend_{};
+  std::unordered_map<Tag, std::pair<ShadowNodeFamily::Weak, folly::dynamic>> updateViewPropsDirectForBackend_{};
+  std::unordered_set<Tag> shouldRequestAsyncFlush_{};
   /*
    * Sometimes a view is not longer connected to a PropsAnimatedNode, but
    * NativeAnimated has previously changed the view's props via direct
diff --git a/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManagerProvider.cpp b/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManagerProvider.cpp
index bf8bad41ba96c2..b0d08ce645fe6c 100644
--- a/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManagerProvider.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/animated/NativeAnimatedNodesManagerProvider.cpp
@@ -95,7 +95,8 @@ NativeAnimatedNodesManagerProvider::getOrCreate(
           std::move(stopOnRenderCallback_),
           std::move(directManipulationCallback),
           std::move(fabricCommitCallback),
-          uiManager);
+          uiManager,
+          jsInvoker);
 
       nativeAnimatedNodesManager_ =
           std::make_shared<NativeAnimatedNodesManager>(animationBackend_);
diff --git a/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.cpp b/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.cpp
index 48660d81531d6d..5cee6b457e4a0c 100644
--- a/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.cpp
@@ -12,6 +12,7 @@
 #include "PropsAnimatedNode.h"
 
 #include <react/debug/react_native_assert.h>
+#include <react/featureflags/ReactNativeFeatureFlags.h>
 #include <react/renderer/animated/NativeAnimatedNodesManager.h>
 #include <react/renderer/animated/nodes/ColorAnimatedNode.h>
 #include <react/renderer/animated/nodes/ObjectAnimatedNode.h>
@@ -55,6 +56,15 @@ PropsAnimatedNode::PropsAnimatedNode(
   }
 }
 
+void PropsAnimatedNode::connectToShadowNodeFamily(
+    ShadowNodeFamily::Weak shadowNodeFamily) {
+  shadowNodeFamily_ = std::move(shadowNodeFamily);
+}
+
+void PropsAnimatedNode::disconnectFromShadowNodeFamily() {
+  shadowNodeFamily_.reset();
+}
+
 void PropsAnimatedNode::connectToView(Tag viewTag) {
   react_native_assert(
       connectedViewTag_ == animated::undefinedAnimatedNodeIdentifier &&
@@ -74,8 +84,17 @@ void PropsAnimatedNode::disconnectFromView(Tag viewTag) {
 void PropsAnimatedNode::restoreDefaultValues() {
   // If node is already disconnected from View, we cannot restore default values
   if (connectedViewTag_ != animated::undefinedAnimatedNodeIdentifier) {
-    manager_->schedulePropsCommit(
-        connectedViewTag_, folly::dynamic::object(), false, false);
+    if (ReactNativeFeatureFlags::useSharedAnimatedBackend()) {
+      manager_->schedulePropsCommit(
+          connectedViewTag_,
+          folly::dynamic::object(),
+          false,
+          false,
+          shadowNodeFamily_);
+    } else {
+      manager_->schedulePropsCommit(
+          connectedViewTag_, folly::dynamic::object(), false, false);
+    }
   }
 }
 
@@ -147,8 +166,17 @@ void PropsAnimatedNode::update(bool forceFabricCommit) {
 
   layoutStyleUpdated_ = isLayoutStyleUpdated(getConfig()["props"], *manager_);
 
-  manager_->schedulePropsCommit(
-      connectedViewTag_, props_, layoutStyleUpdated_, forceFabricCommit);
+  if (ReactNativeFeatureFlags::useSharedAnimatedBackend()) {
+    manager_->schedulePropsCommit(
+        connectedViewTag_,
+        props_,
+        layoutStyleUpdated_,
+        forceFabricCommit,
+        shadowNodeFamily_);
+  } else {
+    manager_->schedulePropsCommit(
+        connectedViewTag_, props_, layoutStyleUpdated_, forceFabricCommit);
+  }
 }
 
 } // namespace facebook::react
diff --git a/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.h b/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.h
index 3da4db587d46ac..51b1ac76660432 100644
--- a/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.h
+++ b/packages/react-native/ReactCommon/react/renderer/animated/nodes/PropsAnimatedNode.h
@@ -21,6 +21,11 @@ namespace facebook::react {
 class PropsAnimatedNode final : public AnimatedNode {
  public:
   PropsAnimatedNode(Tag tag, const folly::dynamic &config, NativeAnimatedNodesManager &manager);
+
+  // Only called when `useSharedAnimatedBackend`==true
+  void connectToShadowNodeFamily(ShadowNodeFamily::Weak shadowNodeFamily);
+  void disconnectFromShadowNodeFamily();
+
   void connectToView(Tag viewTag);
   void disconnectFromView(Tag viewTag);
   void restoreDefaultValues();
@@ -51,6 +56,7 @@ class PropsAnimatedNode final : public AnimatedNode {
   bool layoutStyleUpdated_{false};
 
   Tag connectedViewTag_{animated::undefinedAnimatedNodeIdentifier};
+  ShadowNodeFamily::Weak shadowNodeFamily_;
 
   // Needed for PlatformColor resolver
   SurfaceId connectedRootTag_{animated::undefinedAnimatedNodeIdentifier};
diff --git a/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.cpp b/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.cpp
index 6cb8a707c4e0ac..ed353a38f999b0 100644
--- a/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.cpp
@@ -68,21 +68,25 @@ AnimationBackend::AnimationBackend(
     StopOnRenderCallback&& stopOnRenderCallback,
     DirectManipulationCallback&& directManipulationCallback,
     FabricCommitCallback&& fabricCommitCallback,
-    UIManager* uiManager)
+    UIManager* uiManager,
+    std::shared_ptr<CallInvoker> jsInvoker)
     : startOnRenderCallback_(std::move(startOnRenderCallback)),
       stopOnRenderCallback_(std::move(stopOnRenderCallback)),
       directManipulationCallback_(std::move(directManipulationCallback)),
       fabricCommitCallback_(std::move(fabricCommitCallback)),
       animatedPropsRegistry_(std::make_shared<AnimatedPropsRegistry>()),
       uiManager_(uiManager),
+      jsInvoker_(std::move(jsInvoker)),
       commitHook_(uiManager, animatedPropsRegistry_) {}
 
 void AnimationBackend::onAnimationFrame(double timestamp) {
   std::unordered_map<SurfaceId, SurfaceUpdates> surfaceUpdates;
+  std::set<SurfaceId> asyncFlushSurfaces;
 
   for (auto& callback : callbacks) {
-    auto muatations = callback(static_cast<float>(timestamp));
-    for (auto& mutation : muatations.batch) {
+    auto mutations = callback(static_cast<float>(timestamp));
+    asyncFlushSurfaces.merge(mutations.asyncFlushSurfaces);
+    for (auto& mutation : mutations.batch) {
       const auto family = mutation.family;
       react_native_assert(family != nullptr);
 
@@ -103,6 +107,8 @@ void AnimationBackend::onAnimationFrame(double timestamp) {
       synchronouslyUpdateProps(updates.propsMap);
     }
   }
+
+  requestAsyncFlushForSurfaces(asyncFlushSurfaces);
 }
 
 void AnimationBackend::start(const Callback& callback, bool isAsync) {
@@ -168,6 +174,25 @@ void AnimationBackend::synchronouslyUpdateProps(
   }
 }
 
+void AnimationBackend::requestAsyncFlushForSurfaces(
+    const std::set<SurfaceId>& surfaces) {
+  for (const auto& surfaceId : surfaces) {
+    // perform an empty commit on the js thread, to force the commit hook to
+    // push updated shadow nodes to react through RSNRU
+    jsInvoker_->invokeAsync([this, surfaceId]() {
+      uiManager_->getShadowTreeRegistry().visit(
+          surfaceId, [](const ShadowTree& shadowTree) {
+            shadowTree.commit(
+                [](const RootShadowNode& oldRootShadowNode) {
+                  return std::static_pointer_cast<RootShadowNode>(
+                      oldRootShadowNode.ShadowNode::clone({}));
+                },
+                {.source = ShadowTreeCommitSource::AnimationEndSync});
+          });
+    });
+  }
+}
+
 void AnimationBackend::clearRegistry(SurfaceId surfaceId) {
   animatedPropsRegistry_->clear(surfaceId);
 }
diff --git a/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.h b/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.h
index 7e0bd9bbe81fb8..b8394f908b663a 100644
--- a/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.h
+++ b/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackend.h
@@ -7,11 +7,14 @@
 
 #pragma once
 
+#include <ReactCommon/CallInvoker.h>
 #include <folly/dynamic.h>
 #include <react/renderer/core/ReactPrimitives.h>
 #include <react/renderer/uimanager/UIManager.h>
 #include <react/renderer/uimanager/UIManagerAnimationBackend.h>
 #include <functional>
+#include <memory>
+#include <set>
 #include <vector>
 #include "AnimatedProps.h"
 #include "AnimatedPropsBuilder.h"
@@ -41,6 +44,7 @@ struct AnimationMutation {
 
 struct AnimationMutations {
   std::vector<AnimationMutation> batch;
+  std::set<SurfaceId> asyncFlushSurfaces;
 };
 
 class AnimationBackend : public UIManagerAnimationBackend {
@@ -58,6 +62,7 @@ class AnimationBackend : public UIManagerAnimationBackend {
   const FabricCommitCallback fabricCommitCallback_;
   std::shared_ptr<AnimatedPropsRegistry> animatedPropsRegistry_;
   UIManager *uiManager_;
+  std::shared_ptr<CallInvoker> jsInvoker_;
   AnimationBackendCommitHook commitHook_;
 
   AnimationBackend(
@@ -65,9 +70,11 @@ class AnimationBackend : public UIManagerAnimationBackend {
       StopOnRenderCallback &&stopOnRenderCallback,
       DirectManipulationCallback &&directManipulationCallback,
       FabricCommitCallback &&fabricCommitCallback,
-      UIManager *uiManager);
+      UIManager *uiManager,
+      std::shared_ptr<CallInvoker> jsInvoker);
   void commitUpdates(SurfaceId surfaceId, SurfaceUpdates &surfaceUpdates);
   void synchronouslyUpdateProps(const std::unordered_map<Tag, AnimatedProps> &updates);
+  void requestAsyncFlushForSurfaces(const std::set<SurfaceId> &surfaces);
   void clearRegistry(SurfaceId surfaceId) override;
 
   void onAnimationFrame(double timestamp) override;
diff --git a/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackendCommitHook.cpp b/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackendCommitHook.cpp
index 6d359ea8c1c38e..2058d3d5caa747 100644
--- a/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackendCommitHook.cpp
+++ b/packages/react-native/ReactCommon/react/renderer/animationbackend/AnimationBackendCommitHook.cpp
@@ -21,7 +21,8 @@ RootShadowNode::Unshared AnimationBackendCommitHook::shadowTreeWillCommit(
     const RootShadowNode::Shared& oldRootShadowNode,
     const RootShadowNode::Unshared& newRootShadowNode,
     const ShadowTreeCommitOptions& commitOptions) noexcept {
-  if (commitOptions.source != ShadowTreeCommitSource::React) {
+  if (commitOptions.source != ShadowTreeCommitSource::React &&
+      commitOptions.source != ShadowTreeCommitSource::AnimationEndSync) {
     return newRootShadowNode;
   }
 
diff --git a/packages/react-native/ReactCommon/react/renderer/mounting/ShadowTree.h b/packages/react-native/ReactCommon/react/renderer/mounting/ShadowTree.h
index 3b44d6e49ca470..c1f51fc1a91e82 100644
--- a/packages/react-native/ReactCommon/react/renderer/mounting/ShadowTree.h
+++ b/packages/react-native/ReactCommon/react/renderer/mounting/ShadowTree.h
@@ -50,6 +50,7 @@ enum class ShadowTreeCommitMode {
 enum class ShadowTreeCommitSource {
   Unknown,
   React,
+  AnimationEndSync,
 };
 
 struct ShadowTreeCommitOptions {