diff --git a/compiled/facebook-www/JSXDEVRuntime-dev.classic.js b/compiled/facebook-www/JSXDEVRuntime-dev.classic.js
index 5899c2e3f9..2428105afc 100644
--- a/compiled/facebook-www/JSXDEVRuntime-dev.classic.js
+++ b/compiled/facebook-www/JSXDEVRuntime-dev.classic.js
@@ -25,8 +25,8 @@ var enableDebugTracing = dynamicFeatureFlags.enableDebugTracing,
     enableTransitionTracing = dynamicFeatureFlags.enableTransitionTracing,
     enableRenderableContext = dynamicFeatureFlags.enableRenderableContext,
     enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
-    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses;
- // On WWW, false is used for a new modern build.
+    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+    enableFastJSX = dynamicFeatureFlags.enableFastJSX; // On WWW, false is used for a new modern build.
 // because JSX is an extremely hot path.
 
 var disableStringRefs = false;
@@ -941,6 +941,9 @@ var didWarnAboutElementRef;
   didWarnAboutElementRef = {};
 }
 
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp;
+var enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && disableStringRefs;
+
 function hasValidRef(config) {
   {
     if (hasOwnProperty.call(config, 'ref')) {
@@ -1289,7 +1292,7 @@ function jsxDEV$1(type, config, maybeKey, isStaticChildren, source, self) {
 
     var props;
 
-    if (enableRefAsProp && disableStringRefs && !('key' in config)) {
+    if ((enableFastJSXWithoutStringRefs || enableFastJSXWithStringRefs && !('ref' in config)) && !('key' in config)) {
       // If key was not spread in, we can reuse the original props object. This
       // only works for `jsx`, not `createElement`, because `jsx` is a compiler
       // target and the compiler always passes a new object. For `createElement`,
diff --git a/compiled/facebook-www/JSXDEVRuntime-dev.modern.js b/compiled/facebook-www/JSXDEVRuntime-dev.modern.js
index 79fba25e69..700af5662d 100644
--- a/compiled/facebook-www/JSXDEVRuntime-dev.modern.js
+++ b/compiled/facebook-www/JSXDEVRuntime-dev.modern.js
@@ -25,8 +25,8 @@ var enableDebugTracing = dynamicFeatureFlags.enableDebugTracing,
     enableTransitionTracing = dynamicFeatureFlags.enableTransitionTracing,
     enableRenderableContext = dynamicFeatureFlags.enableRenderableContext,
     enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
-    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses;
- // On WWW, true is used for a new modern build.
+    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+    enableFastJSX = dynamicFeatureFlags.enableFastJSX; // On WWW, true is used for a new modern build.
 // because JSX is an extremely hot path.
 
 var disableStringRefs = false;
@@ -944,6 +944,9 @@ var didWarnAboutElementRef;
   didWarnAboutElementRef = {};
 }
 
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp;
+var enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && disableStringRefs;
+
 function hasValidRef(config) {
   {
     if (hasOwnProperty.call(config, 'ref')) {
@@ -1292,7 +1295,7 @@ function jsxDEV$1(type, config, maybeKey, isStaticChildren, source, self) {
 
     var props;
 
-    if (enableRefAsProp && disableStringRefs && !('key' in config)) {
+    if ((enableFastJSXWithoutStringRefs || enableFastJSXWithStringRefs && !('ref' in config)) && !('key' in config)) {
       // If key was not spread in, we can reuse the original props object. This
       // only works for `jsx`, not `createElement`, because `jsx` is a compiler
       // target and the compiler always passes a new object. For `createElement`,
diff --git a/compiled/facebook-www/REVISION b/compiled/facebook-www/REVISION
index c3e908ca01..7755a36186 100644
--- a/compiled/facebook-www/REVISION
+++ b/compiled/facebook-www/REVISION
@@ -1 +1 @@
-73bcdfbae57545aa8f88ecdf67426275610b5573
+1beb73de0f7c3261a0de37620453b102caaa6236
diff --git a/compiled/facebook-www/React-dev.classic.js b/compiled/facebook-www/React-dev.classic.js
index 19d85fee84..9a72d6c9a0 100644
--- a/compiled/facebook-www/React-dev.classic.js
+++ b/compiled/facebook-www/React-dev.classic.js
@@ -25,7 +25,7 @@ if (
 ) {
   __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStart(new Error());
 }
-          var ReactVersion = '19.0.0-www-classic-e0403cc2';
+          var ReactVersion = '19.0.0-www-classic-f1929680';
 
 // Re-export dynamic flags from the www version.
 var dynamicFeatureFlags = require('ReactFeatureFlags');
@@ -34,8 +34,8 @@ var enableDebugTracing = dynamicFeatureFlags.enableDebugTracing,
     enableTransitionTracing = dynamicFeatureFlags.enableTransitionTracing,
     enableRenderableContext = dynamicFeatureFlags.enableRenderableContext,
     enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
-    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses;
- // On WWW, false is used for a new modern build.
+    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+    enableFastJSX = dynamicFeatureFlags.enableFastJSX; // On WWW, false is used for a new modern build.
 // because JSX is an extremely hot path.
 
 var disableStringRefs = false;
@@ -1224,6 +1224,9 @@ var didWarnAboutOldJSXRuntime;
   didWarnAboutElementRef = {};
 }
 
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp;
+var enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && disableStringRefs;
+
 function hasValidRef(config) {
   {
     if (hasOwnProperty.call(config, 'ref')) {
@@ -1596,7 +1599,7 @@ function jsxDEV$1(type, config, maybeKey, isStaticChildren, source, self) {
 
     var props;
 
-    if (enableRefAsProp && disableStringRefs && !('key' in config)) {
+    if ((enableFastJSXWithoutStringRefs || enableFastJSXWithStringRefs && !('ref' in config)) && !('key' in config)) {
       // If key was not spread in, we can reuse the original props object. This
       // only works for `jsx`, not `createElement`, because `jsx` is a compiler
       // target and the compiler always passes a new object. For `createElement`,
diff --git a/compiled/facebook-www/React-dev.modern.js b/compiled/facebook-www/React-dev.modern.js
index 4ccca52ab9..7956b1301f 100644
--- a/compiled/facebook-www/React-dev.modern.js
+++ b/compiled/facebook-www/React-dev.modern.js
@@ -25,7 +25,7 @@ if (
 ) {
   __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStart(new Error());
 }
-          var ReactVersion = '19.0.0-www-modern-65139682';
+          var ReactVersion = '19.0.0-www-modern-1ac5c7b0';
 
 // Re-export dynamic flags from the www version.
 var dynamicFeatureFlags = require('ReactFeatureFlags');
@@ -34,8 +34,8 @@ var enableDebugTracing = dynamicFeatureFlags.enableDebugTracing,
     enableTransitionTracing = dynamicFeatureFlags.enableTransitionTracing,
     enableRenderableContext = dynamicFeatureFlags.enableRenderableContext,
     enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
-    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses;
- // On WWW, true is used for a new modern build.
+    disableDefaultPropsExceptForClasses = dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+    enableFastJSX = dynamicFeatureFlags.enableFastJSX; // On WWW, true is used for a new modern build.
 // because JSX is an extremely hot path.
 
 var disableStringRefs = false;
@@ -1227,6 +1227,9 @@ var didWarnAboutOldJSXRuntime;
   didWarnAboutElementRef = {};
 }
 
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp;
+var enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && disableStringRefs;
+
 function hasValidRef(config) {
   {
     if (hasOwnProperty.call(config, 'ref')) {
@@ -1599,7 +1602,7 @@ function jsxDEV$1(type, config, maybeKey, isStaticChildren, source, self) {
 
     var props;
 
-    if (enableRefAsProp && disableStringRefs && !('key' in config)) {
+    if ((enableFastJSXWithoutStringRefs || enableFastJSXWithStringRefs && !('ref' in config)) && !('key' in config)) {
       // If key was not spread in, we can reuse the original props object. This
       // only works for `jsx`, not `createElement`, because `jsx` is a compiler
       // target and the compiler always passes a new object. For `createElement`,
diff --git a/compiled/facebook-www/React-prod.classic.js b/compiled/facebook-www/React-prod.classic.js
index c9d66ef892..084307294e 100644
--- a/compiled/facebook-www/React-prod.classic.js
+++ b/compiled/facebook-www/React-prod.classic.js
@@ -17,6 +17,7 @@ var dynamicFeatureFlags = require("ReactFeatureFlags"),
   enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
   disableDefaultPropsExceptForClasses =
     dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+  enableFastJSX = dynamicFeatureFlags.enableFastJSX,
   REACT_LEGACY_ELEMENT_TYPE = Symbol.for("react.element"),
   REACT_PORTAL_TYPE = Symbol.for("react.portal"),
   REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"),
@@ -93,6 +94,8 @@ function getOwner() {
   var dispatcher = ReactSharedInternals.A;
   return null === dispatcher ? null : dispatcher.getOwner();
 }
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp,
+  enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && !1;
 function ReactElement(type, key, _ref, self, source, owner, props) {
   enableRefAsProp &&
     ((_ref = props.ref), (_ref = void 0 !== _ref ? _ref : null));
@@ -113,13 +116,19 @@ function jsxProd(type, config, maybeKey) {
   void 0 === config.ref ||
     enableRefAsProp ||
     ((ref = config.ref), (ref = coerceStringRef(ref, getOwner(), type)));
-  maybeKey = {};
-  for (var propName in config)
-    "key" === propName ||
-      (!enableRefAsProp && "ref" === propName) ||
-      (enableRefAsProp && "ref" === propName
-        ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
-        : (maybeKey[propName] = config[propName]));
+  if (
+    (!enableFastJSXWithoutStringRefs &&
+      (!enableFastJSXWithStringRefs || "ref" in config)) ||
+    "key" in config
+  ) {
+    maybeKey = {};
+    for (var propName in config)
+      "key" === propName ||
+        (!enableRefAsProp && "ref" === propName) ||
+        (enableRefAsProp && "ref" === propName
+          ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
+          : (maybeKey[propName] = config[propName]));
+  } else maybeKey = config;
   if (!disableDefaultPropsExceptForClasses && type && type.defaultProps) {
     config = type.defaultProps;
     for (var propName$0 in config)
@@ -675,4 +684,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-classic-8ffd6973";
+exports.version = "19.0.0-www-classic-af056f91";
diff --git a/compiled/facebook-www/React-prod.modern.js b/compiled/facebook-www/React-prod.modern.js
index 262c62e004..7887c56f22 100644
--- a/compiled/facebook-www/React-prod.modern.js
+++ b/compiled/facebook-www/React-prod.modern.js
@@ -17,6 +17,7 @@ var dynamicFeatureFlags = require("ReactFeatureFlags"),
   enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
   disableDefaultPropsExceptForClasses =
     dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+  enableFastJSX = dynamicFeatureFlags.enableFastJSX,
   REACT_LEGACY_ELEMENT_TYPE = Symbol.for("react.element"),
   REACT_PORTAL_TYPE = Symbol.for("react.portal"),
   REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"),
@@ -93,6 +94,8 @@ function getOwner() {
   var dispatcher = ReactSharedInternals.A;
   return null === dispatcher ? null : dispatcher.getOwner();
 }
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp,
+  enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && !1;
 function ReactElement(type, key, _ref, self, source, owner, props) {
   enableRefAsProp &&
     ((_ref = props.ref), (_ref = void 0 !== _ref ? _ref : null));
@@ -113,13 +116,19 @@ function jsxProd(type, config, maybeKey) {
   void 0 === config.ref ||
     enableRefAsProp ||
     ((ref = config.ref), (ref = coerceStringRef(ref, getOwner(), type)));
-  maybeKey = {};
-  for (var propName in config)
-    "key" === propName ||
-      (!enableRefAsProp && "ref" === propName) ||
-      (enableRefAsProp && "ref" === propName
-        ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
-        : (maybeKey[propName] = config[propName]));
+  if (
+    (!enableFastJSXWithoutStringRefs &&
+      (!enableFastJSXWithStringRefs || "ref" in config)) ||
+    "key" in config
+  ) {
+    maybeKey = {};
+    for (var propName in config)
+      "key" === propName ||
+        (!enableRefAsProp && "ref" === propName) ||
+        (enableRefAsProp && "ref" === propName
+          ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
+          : (maybeKey[propName] = config[propName]));
+  } else maybeKey = config;
   if (!disableDefaultPropsExceptForClasses && type && type.defaultProps) {
     config = type.defaultProps;
     for (var propName$0 in config)
@@ -675,4 +684,4 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-modern-8ffd6973";
+exports.version = "19.0.0-www-modern-af056f91";
diff --git a/compiled/facebook-www/React-profiling.classic.js b/compiled/facebook-www/React-profiling.classic.js
index 61659dc317..da0cad706f 100644
--- a/compiled/facebook-www/React-profiling.classic.js
+++ b/compiled/facebook-www/React-profiling.classic.js
@@ -21,6 +21,7 @@ var dynamicFeatureFlags = require("ReactFeatureFlags"),
   enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
   disableDefaultPropsExceptForClasses =
     dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+  enableFastJSX = dynamicFeatureFlags.enableFastJSX,
   REACT_LEGACY_ELEMENT_TYPE = Symbol.for("react.element"),
   REACT_PORTAL_TYPE = Symbol.for("react.portal"),
   REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"),
@@ -97,6 +98,8 @@ function getOwner() {
   var dispatcher = ReactSharedInternals.A;
   return null === dispatcher ? null : dispatcher.getOwner();
 }
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp,
+  enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && !1;
 function ReactElement(type, key, _ref, self, source, owner, props) {
   enableRefAsProp &&
     ((_ref = props.ref), (_ref = void 0 !== _ref ? _ref : null));
@@ -117,13 +120,19 @@ function jsxProd(type, config, maybeKey) {
   void 0 === config.ref ||
     enableRefAsProp ||
     ((ref = config.ref), (ref = coerceStringRef(ref, getOwner(), type)));
-  maybeKey = {};
-  for (var propName in config)
-    "key" === propName ||
-      (!enableRefAsProp && "ref" === propName) ||
-      (enableRefAsProp && "ref" === propName
-        ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
-        : (maybeKey[propName] = config[propName]));
+  if (
+    (!enableFastJSXWithoutStringRefs &&
+      (!enableFastJSXWithStringRefs || "ref" in config)) ||
+    "key" in config
+  ) {
+    maybeKey = {};
+    for (var propName in config)
+      "key" === propName ||
+        (!enableRefAsProp && "ref" === propName) ||
+        (enableRefAsProp && "ref" === propName
+          ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
+          : (maybeKey[propName] = config[propName]));
+  } else maybeKey = config;
   if (!disableDefaultPropsExceptForClasses && type && type.defaultProps) {
     config = type.defaultProps;
     for (var propName$0 in config)
@@ -679,7 +688,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-classic-c1be9b80";
+exports.version = "19.0.0-www-classic-cb3c2ab2";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&
diff --git a/compiled/facebook-www/React-profiling.modern.js b/compiled/facebook-www/React-profiling.modern.js
index 22610ab6b0..1edca9abce 100644
--- a/compiled/facebook-www/React-profiling.modern.js
+++ b/compiled/facebook-www/React-profiling.modern.js
@@ -21,6 +21,7 @@ var dynamicFeatureFlags = require("ReactFeatureFlags"),
   enableRefAsProp = dynamicFeatureFlags.enableRefAsProp,
   disableDefaultPropsExceptForClasses =
     dynamicFeatureFlags.disableDefaultPropsExceptForClasses,
+  enableFastJSX = dynamicFeatureFlags.enableFastJSX,
   REACT_LEGACY_ELEMENT_TYPE = Symbol.for("react.element"),
   REACT_PORTAL_TYPE = Symbol.for("react.portal"),
   REACT_FRAGMENT_TYPE = Symbol.for("react.fragment"),
@@ -97,6 +98,8 @@ function getOwner() {
   var dispatcher = ReactSharedInternals.A;
   return null === dispatcher ? null : dispatcher.getOwner();
 }
+var enableFastJSXWithStringRefs = enableFastJSX && enableRefAsProp,
+  enableFastJSXWithoutStringRefs = enableFastJSXWithStringRefs && !1;
 function ReactElement(type, key, _ref, self, source, owner, props) {
   enableRefAsProp &&
     ((_ref = props.ref), (_ref = void 0 !== _ref ? _ref : null));
@@ -117,13 +120,19 @@ function jsxProd(type, config, maybeKey) {
   void 0 === config.ref ||
     enableRefAsProp ||
     ((ref = config.ref), (ref = coerceStringRef(ref, getOwner(), type)));
-  maybeKey = {};
-  for (var propName in config)
-    "key" === propName ||
-      (!enableRefAsProp && "ref" === propName) ||
-      (enableRefAsProp && "ref" === propName
-        ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
-        : (maybeKey[propName] = config[propName]));
+  if (
+    (!enableFastJSXWithoutStringRefs &&
+      (!enableFastJSXWithStringRefs || "ref" in config)) ||
+    "key" in config
+  ) {
+    maybeKey = {};
+    for (var propName in config)
+      "key" === propName ||
+        (!enableRefAsProp && "ref" === propName) ||
+        (enableRefAsProp && "ref" === propName
+          ? (maybeKey.ref = coerceStringRef(config[propName], getOwner(), type))
+          : (maybeKey[propName] = config[propName]));
+  } else maybeKey = config;
   if (!disableDefaultPropsExceptForClasses && type && type.defaultProps) {
     config = type.defaultProps;
     for (var propName$0 in config)
@@ -679,7 +688,7 @@ exports.useSyncExternalStore = function (
 exports.useTransition = function () {
   return ReactSharedInternals.H.useTransition();
 };
-exports.version = "19.0.0-www-modern-c1be9b80";
+exports.version = "19.0.0-www-modern-cb3c2ab2";
 "undefined" !== typeof __REACT_DEVTOOLS_GLOBAL_HOOK__ &&
   "function" ===
     typeof __REACT_DEVTOOLS_GLOBAL_HOOK__.registerInternalModuleStop &&