diff --git a/packages/shared/ReactFeatureFlags.js b/packages/shared/ReactFeatureFlags.js
index 7a19c29ea8a..de3e461e256 100644
--- a/packages/shared/ReactFeatureFlags.js
+++ b/packages/shared/ReactFeatureFlags.js
@@ -84,7 +84,7 @@ export const warnAboutDefaultPropsOnFunctionComponents = false;
 
 export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
 
-export const enableTrainModelFix = __EXPERIMENTAL__;
+export const enableTrainModelFix = true;
 
 export const enableTrustedTypesIntegration = false;
 
diff --git a/packages/shared/forks/ReactFeatureFlags.native-fb.js b/packages/shared/forks/ReactFeatureFlags.native-fb.js
index 92790eb2118..c38a0327d36 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-fb.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-fb.js
@@ -43,7 +43,7 @@ export const warnAboutDefaultPropsOnFunctionComponents = false;
 export const warnAboutStringRefs = false;
 export const disableLegacyContext = false;
 export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
-export const enableTrainModelFix = false;
+export const enableTrainModelFix = true;
 export const enableTrustedTypesIntegration = false;
 export const disableCreateFactory = false;
 export const disableTextareaChildren = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.native-oss.js b/packages/shared/forks/ReactFeatureFlags.native-oss.js
index 9facb94125d..7b2f5f1205d 100644
--- a/packages/shared/forks/ReactFeatureFlags.native-oss.js
+++ b/packages/shared/forks/ReactFeatureFlags.native-oss.js
@@ -37,7 +37,7 @@ export const warnAboutDefaultPropsOnFunctionComponents = false;
 export const warnAboutStringRefs = false;
 export const disableLegacyContext = false;
 export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
-export const enableTrainModelFix = false;
+export const enableTrainModelFix = true;
 export const enableTrustedTypesIntegration = false;
 export const enableNativeTargetAsInstance = false;
 export const disableCreateFactory = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.persistent.js b/packages/shared/forks/ReactFeatureFlags.persistent.js
index 53547ef390b..b2805c888b0 100644
--- a/packages/shared/forks/ReactFeatureFlags.persistent.js
+++ b/packages/shared/forks/ReactFeatureFlags.persistent.js
@@ -37,7 +37,7 @@ export const warnAboutDefaultPropsOnFunctionComponents = false;
 export const warnAboutStringRefs = false;
 export const disableLegacyContext = false;
 export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
-export const enableTrainModelFix = false;
+export const enableTrainModelFix = true;
 export const enableTrustedTypesIntegration = false;
 export const enableNativeTargetAsInstance = false;
 export const disableCreateFactory = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.js
index efb730ca7b5..86d8e084921 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.js
@@ -37,7 +37,7 @@ export const warnAboutDefaultPropsOnFunctionComponents = false;
 export const warnAboutStringRefs = false;
 export const disableLegacyContext = false;
 export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
-export const enableTrainModelFix = false;
+export const enableTrainModelFix = true;
 export const enableTrustedTypesIntegration = false;
 export const enableNativeTargetAsInstance = false;
 export const disableCreateFactory = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
index 7fb5145ea72..0778ae33849 100644
--- a/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.test-renderer.www.js
@@ -35,7 +35,7 @@ export const warnAboutDefaultPropsOnFunctionComponents = false;
 export const warnAboutStringRefs = false;
 export const disableLegacyContext = false;
 export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
-export const enableTrainModelFix = false;
+export const enableTrainModelFix = true;
 export const enableTrustedTypesIntegration = false;
 export const enableNativeTargetAsInstance = false;
 export const disableCreateFactory = false;
diff --git a/packages/shared/forks/ReactFeatureFlags.www.js b/packages/shared/forks/ReactFeatureFlags.www.js
index 1abc4719ca2..40e617d295f 100644
--- a/packages/shared/forks/ReactFeatureFlags.www.js
+++ b/packages/shared/forks/ReactFeatureFlags.www.js
@@ -15,8 +15,6 @@ export const {
   debugRenderPhaseSideEffectsForStrictMode,
   disableInputAttributeSyncing,
   enableTrustedTypesIntegration,
-  enableSelectiveHydration,
-  enableTrainModelFix,
 } = require('ReactFeatureFlags');
 
 // In www, we have experimental support for gathering data
@@ -39,9 +37,12 @@ export const warnAboutStringRefs = false;
 export const warnAboutDefaultPropsOnFunctionComponents = false;
 export const disableSchedulerTimeoutBasedOnReactExpirationTime = false;
 
+export const enableTrainModelFix = true;
+
 export const exposeConcurrentModeAPIs = __EXPERIMENTAL__;
 
 export const enableSuspenseServerRenderer = true;
+export const enableSelectiveHydration = true;
 
 export const enableChunksAPI = __EXPERIMENTAL__;