diff --git a/compiled/facebook-www/REVISION b/compiled/facebook-www/REVISION
index 272b4a9a4fd96..e11f9c7839bc9 100644
--- a/compiled/facebook-www/REVISION
+++ b/compiled/facebook-www/REVISION
@@ -1 +1 @@
-6bac4f2f31378cd58dffe6181e00639366a6081a
+826bf4e51ecf14904e936ed043392084553ebbaa
diff --git a/compiled/facebook-www/ReactDOMServer-dev.classic.js b/compiled/facebook-www/ReactDOMServer-dev.classic.js
index 2775b030c1368..f4e58b2ca311a 100644
--- a/compiled/facebook-www/ReactDOMServer-dev.classic.js
+++ b/compiled/facebook-www/ReactDOMServer-dev.classic.js
@@ -19,7 +19,7 @@ if (__DEV__) {
 var React = require('react');
 var ReactDOM = require('react-dom');
 
-var ReactVersion = '19.0.0-www-classic-b547cfd9';
+var ReactVersion = '19.0.0-www-classic-f3d84129';
 
 // This refers to a WWW module.
 var warningWWW = require('warning');
@@ -2572,7 +2572,11 @@ var startHiddenInputChunk = stringToPrecomputedChunk('<input type="hidden"');
 function pushAdditionalFormField(value, key) {
   var target = this;
   target.push(startHiddenInputChunk);
-  validateAdditionalFormField(value);
+
+  if (typeof value !== 'string') {
+    throw new Error('File/Blob fields are not yet supported in progressive forms. ' + 'It probably means you are closing over binary data or FormData in a Server Action.');
+  }
+
   pushStringAttribute(target, 'name', key);
   pushStringAttribute(target, 'value', value);
   target.push(endOfStartTagSelfClosing);
@@ -2585,21 +2589,6 @@ function pushAdditionalFormFields(target, formData) {
   }
 }
 
-function validateAdditionalFormField(value, key) {
-  if (typeof value !== 'string') {
-    throw new Error('File/Blob fields are not yet supported in progressive forms. ' + 'Will fallback to client hydration.');
-  }
-}
-
-function validateAdditionalFormFields(formData) {
-  if (formData != null) {
-    // $FlowFixMe[prop-missing]: FormData has forEach.
-    formData.forEach(validateAdditionalFormField);
-  }
-
-  return formData;
-}
-
 function getCustomFormFields(resumableState, formAction) {
   var customAction = formAction.$$FORM_ACTION;
 
@@ -2607,13 +2596,7 @@ function getCustomFormFields(resumableState, formAction) {
     var prefix = makeFormFieldPrefix(resumableState);
 
     try {
-      var customFields = formAction.$$FORM_ACTION(prefix);
-
-      if (customFields) {
-        validateAdditionalFormFields(customFields.data);
-      }
-
-      return customFields;
+      return formAction.$$FORM_ACTION(prefix);
     } catch (x) {
       if (typeof x === 'object' && x !== null && typeof x.then === 'function') {
         // Rethrow suspense.
diff --git a/compiled/facebook-www/ReactDOMServer-dev.modern.js b/compiled/facebook-www/ReactDOMServer-dev.modern.js
index b3b1077ebf4bf..1488583b352a2 100644
--- a/compiled/facebook-www/ReactDOMServer-dev.modern.js
+++ b/compiled/facebook-www/ReactDOMServer-dev.modern.js
@@ -19,7 +19,7 @@ if (__DEV__) {
 var React = require('react');
 var ReactDOM = require('react-dom');
 
-var ReactVersion = '19.0.0-www-modern-ce28692a';
+var ReactVersion = '19.0.0-www-modern-f9bdfca0';
 
 // This refers to a WWW module.
 var warningWWW = require('warning');
@@ -2572,7 +2572,11 @@ var startHiddenInputChunk = stringToPrecomputedChunk('<input type="hidden"');
 function pushAdditionalFormField(value, key) {
   var target = this;
   target.push(startHiddenInputChunk);
-  validateAdditionalFormField(value);
+
+  if (typeof value !== 'string') {
+    throw new Error('File/Blob fields are not yet supported in progressive forms. ' + 'It probably means you are closing over binary data or FormData in a Server Action.');
+  }
+
   pushStringAttribute(target, 'name', key);
   pushStringAttribute(target, 'value', value);
   target.push(endOfStartTagSelfClosing);
@@ -2585,21 +2589,6 @@ function pushAdditionalFormFields(target, formData) {
   }
 }
 
-function validateAdditionalFormField(value, key) {
-  if (typeof value !== 'string') {
-    throw new Error('File/Blob fields are not yet supported in progressive forms. ' + 'Will fallback to client hydration.');
-  }
-}
-
-function validateAdditionalFormFields(formData) {
-  if (formData != null) {
-    // $FlowFixMe[prop-missing]: FormData has forEach.
-    formData.forEach(validateAdditionalFormField);
-  }
-
-  return formData;
-}
-
 function getCustomFormFields(resumableState, formAction) {
   var customAction = formAction.$$FORM_ACTION;
 
@@ -2607,13 +2596,7 @@ function getCustomFormFields(resumableState, formAction) {
     var prefix = makeFormFieldPrefix(resumableState);
 
     try {
-      var customFields = formAction.$$FORM_ACTION(prefix);
-
-      if (customFields) {
-        validateAdditionalFormFields(customFields.data);
-      }
-
-      return customFields;
+      return formAction.$$FORM_ACTION(prefix);
     } catch (x) {
       if (typeof x === 'object' && x !== null && typeof x.then === 'function') {
         // Rethrow suspense.
diff --git a/compiled/facebook-www/ReactDOMServer-prod.classic.js b/compiled/facebook-www/ReactDOMServer-prod.classic.js
index c921771d5a510..6bb3aed38155d 100644
--- a/compiled/facebook-www/ReactDOMServer-prod.classic.js
+++ b/compiled/facebook-www/ReactDOMServer-prod.classic.js
@@ -445,25 +445,17 @@ var actionJavaScriptURL = escapeTextForBrowser(
 );
 function pushAdditionalFormField(value, key) {
   this.push('<input type="hidden"');
-  validateAdditionalFormField(value);
+  if ("string" !== typeof value) throw Error(formatProdErrorMessage(480));
   pushStringAttribute(this, "name", key);
   pushStringAttribute(this, "value", value);
   this.push("/>");
 }
-function validateAdditionalFormField(value) {
-  if ("string" !== typeof value) throw Error(formatProdErrorMessage(480));
-}
 function getCustomFormFields(resumableState, formAction) {
   if ("function" === typeof formAction.$$FORM_ACTION) {
     var id = resumableState.nextFormID++;
     resumableState = resumableState.idPrefix + id;
     try {
-      var customFields = formAction.$$FORM_ACTION(resumableState);
-      if (customFields) {
-        var formData = customFields.data;
-        null != formData && formData.forEach(validateAdditionalFormField);
-      }
-      return customFields;
+      return formAction.$$FORM_ACTION(resumableState);
     } catch (x) {
       if ("object" === typeof x && null !== x && "function" === typeof x.then)
         throw x;
@@ -2635,16 +2627,16 @@ function createRenderState(resumableState, generateStaticMarkup) {
       "\x3c/script>"
     );
   bootstrapScriptContent = idPrefix + "P:";
-  var JSCompiler_object_inline_segmentPrefix_1633 = idPrefix + "S:";
+  var JSCompiler_object_inline_segmentPrefix_1631 = idPrefix + "S:";
   idPrefix += "B:";
-  var JSCompiler_object_inline_preconnects_1647 = new Set(),
-    JSCompiler_object_inline_fontPreloads_1648 = new Set(),
-    JSCompiler_object_inline_highImagePreloads_1649 = new Set(),
-    JSCompiler_object_inline_styles_1650 = new Map(),
-    JSCompiler_object_inline_bootstrapScripts_1651 = new Set(),
-    JSCompiler_object_inline_scripts_1652 = new Set(),
-    JSCompiler_object_inline_bulkPreloads_1653 = new Set(),
-    JSCompiler_object_inline_preloads_1654 = {
+  var JSCompiler_object_inline_preconnects_1645 = new Set(),
+    JSCompiler_object_inline_fontPreloads_1646 = new Set(),
+    JSCompiler_object_inline_highImagePreloads_1647 = new Set(),
+    JSCompiler_object_inline_styles_1648 = new Map(),
+    JSCompiler_object_inline_bootstrapScripts_1649 = new Set(),
+    JSCompiler_object_inline_scripts_1650 = new Set(),
+    JSCompiler_object_inline_bulkPreloads_1651 = new Set(),
+    JSCompiler_object_inline_preloads_1652 = {
       images: new Map(),
       stylesheets: new Map(),
       scripts: new Map(),
@@ -2681,7 +2673,7 @@ function createRenderState(resumableState, generateStaticMarkup) {
       scriptConfig.moduleScriptResources[href] = null;
       scriptConfig = [];
       pushLinkImpl(scriptConfig, props);
-      JSCompiler_object_inline_bootstrapScripts_1651.add(scriptConfig);
+      JSCompiler_object_inline_bootstrapScripts_1649.add(scriptConfig);
       bootstrapChunks.push('<script src="', escapeTextForBrowser(src));
       "string" === typeof integrity &&
         bootstrapChunks.push('" integrity="', escapeTextForBrowser(integrity));
@@ -2722,7 +2714,7 @@ function createRenderState(resumableState, generateStaticMarkup) {
         (props.moduleScriptResources[scriptConfig] = null),
         (props = []),
         pushLinkImpl(props, integrity),
-        JSCompiler_object_inline_bootstrapScripts_1651.add(props),
+        JSCompiler_object_inline_bootstrapScripts_1649.add(props),
         bootstrapChunks.push(
           '<script type="module" src="',
           escapeTextForBrowser(i)
@@ -2737,7 +2729,7 @@ function createRenderState(resumableState, generateStaticMarkup) {
         bootstrapChunks.push('" async="">\x3c/script>');
   return {
     placeholderPrefix: bootstrapScriptContent,
-    segmentPrefix: JSCompiler_object_inline_segmentPrefix_1633,
+    segmentPrefix: JSCompiler_object_inline_segmentPrefix_1631,
     boundaryPrefix: idPrefix,
     startInlineScript: "<script>",
     htmlChunks: null,
@@ -2757,14 +2749,14 @@ function createRenderState(resumableState, generateStaticMarkup) {
     charsetChunks: [],
     viewportChunks: [],
     hoistableChunks: [],
-    preconnects: JSCompiler_object_inline_preconnects_1647,
-    fontPreloads: JSCompiler_object_inline_fontPreloads_1648,
-    highImagePreloads: JSCompiler_object_inline_highImagePreloads_1649,
-    styles: JSCompiler_object_inline_styles_1650,
-    bootstrapScripts: JSCompiler_object_inline_bootstrapScripts_1651,
-    scripts: JSCompiler_object_inline_scripts_1652,
-    bulkPreloads: JSCompiler_object_inline_bulkPreloads_1653,
-    preloads: JSCompiler_object_inline_preloads_1654,
+    preconnects: JSCompiler_object_inline_preconnects_1645,
+    fontPreloads: JSCompiler_object_inline_fontPreloads_1646,
+    highImagePreloads: JSCompiler_object_inline_highImagePreloads_1647,
+    styles: JSCompiler_object_inline_styles_1648,
+    bootstrapScripts: JSCompiler_object_inline_bootstrapScripts_1649,
+    scripts: JSCompiler_object_inline_scripts_1650,
+    bulkPreloads: JSCompiler_object_inline_bulkPreloads_1651,
+    preloads: JSCompiler_object_inline_preloads_1652,
     stylesToHoist: !1,
     generateStaticMarkup: generateStaticMarkup
   };
@@ -5699,4 +5691,4 @@ exports.renderToString = function (children, options) {
     'The server used "renderToString" which does not support Suspense. If you intended for this Suspense boundary to render the fallback content on the server consider throwing an Error somewhere within the Suspense boundary. If you intended to have the server wait for the suspended component please switch to "renderToReadableStream" which supports Suspense on the server'
   );
 };
-exports.version = "19.0.0-www-classic-444074d7";
+exports.version = "19.0.0-www-classic-a976e819";
diff --git a/compiled/facebook-www/ReactDOMServer-prod.modern.js b/compiled/facebook-www/ReactDOMServer-prod.modern.js
index c0707f8cd7291..255e6c1ec8376 100644
--- a/compiled/facebook-www/ReactDOMServer-prod.modern.js
+++ b/compiled/facebook-www/ReactDOMServer-prod.modern.js
@@ -445,25 +445,17 @@ var actionJavaScriptURL = escapeTextForBrowser(
 );
 function pushAdditionalFormField(value, key) {
   this.push('<input type="hidden"');
-  validateAdditionalFormField(value);
+  if ("string" !== typeof value) throw Error(formatProdErrorMessage(480));
   pushStringAttribute(this, "name", key);
   pushStringAttribute(this, "value", value);
   this.push("/>");
 }
-function validateAdditionalFormField(value) {
-  if ("string" !== typeof value) throw Error(formatProdErrorMessage(480));
-}
 function getCustomFormFields(resumableState, formAction) {
   if ("function" === typeof formAction.$$FORM_ACTION) {
     var id = resumableState.nextFormID++;
     resumableState = resumableState.idPrefix + id;
     try {
-      var customFields = formAction.$$FORM_ACTION(resumableState);
-      if (customFields) {
-        var formData = customFields.data;
-        null != formData && formData.forEach(validateAdditionalFormField);
-      }
-      return customFields;
+      return formAction.$$FORM_ACTION(resumableState);
     } catch (x) {
       if ("object" === typeof x && null !== x && "function" === typeof x.then)
         throw x;
@@ -2635,16 +2627,16 @@ function createRenderState(resumableState, generateStaticMarkup) {
       "\x3c/script>"
     );
   bootstrapScriptContent = idPrefix + "P:";
-  var JSCompiler_object_inline_segmentPrefix_1620 = idPrefix + "S:";
+  var JSCompiler_object_inline_segmentPrefix_1618 = idPrefix + "S:";
   idPrefix += "B:";
-  var JSCompiler_object_inline_preconnects_1634 = new Set(),
-    JSCompiler_object_inline_fontPreloads_1635 = new Set(),
-    JSCompiler_object_inline_highImagePreloads_1636 = new Set(),
-    JSCompiler_object_inline_styles_1637 = new Map(),
-    JSCompiler_object_inline_bootstrapScripts_1638 = new Set(),
-    JSCompiler_object_inline_scripts_1639 = new Set(),
-    JSCompiler_object_inline_bulkPreloads_1640 = new Set(),
-    JSCompiler_object_inline_preloads_1641 = {
+  var JSCompiler_object_inline_preconnects_1632 = new Set(),
+    JSCompiler_object_inline_fontPreloads_1633 = new Set(),
+    JSCompiler_object_inline_highImagePreloads_1634 = new Set(),
+    JSCompiler_object_inline_styles_1635 = new Map(),
+    JSCompiler_object_inline_bootstrapScripts_1636 = new Set(),
+    JSCompiler_object_inline_scripts_1637 = new Set(),
+    JSCompiler_object_inline_bulkPreloads_1638 = new Set(),
+    JSCompiler_object_inline_preloads_1639 = {
       images: new Map(),
       stylesheets: new Map(),
       scripts: new Map(),
@@ -2681,7 +2673,7 @@ function createRenderState(resumableState, generateStaticMarkup) {
       scriptConfig.moduleScriptResources[href] = null;
       scriptConfig = [];
       pushLinkImpl(scriptConfig, props);
-      JSCompiler_object_inline_bootstrapScripts_1638.add(scriptConfig);
+      JSCompiler_object_inline_bootstrapScripts_1636.add(scriptConfig);
       bootstrapChunks.push('<script src="', escapeTextForBrowser(src));
       "string" === typeof integrity &&
         bootstrapChunks.push('" integrity="', escapeTextForBrowser(integrity));
@@ -2722,7 +2714,7 @@ function createRenderState(resumableState, generateStaticMarkup) {
         (props.moduleScriptResources[scriptConfig] = null),
         (props = []),
         pushLinkImpl(props, integrity),
-        JSCompiler_object_inline_bootstrapScripts_1638.add(props),
+        JSCompiler_object_inline_bootstrapScripts_1636.add(props),
         bootstrapChunks.push(
           '<script type="module" src="',
           escapeTextForBrowser(i)
@@ -2737,7 +2729,7 @@ function createRenderState(resumableState, generateStaticMarkup) {
         bootstrapChunks.push('" async="">\x3c/script>');
   return {
     placeholderPrefix: bootstrapScriptContent,
-    segmentPrefix: JSCompiler_object_inline_segmentPrefix_1620,
+    segmentPrefix: JSCompiler_object_inline_segmentPrefix_1618,
     boundaryPrefix: idPrefix,
     startInlineScript: "<script>",
     htmlChunks: null,
@@ -2757,14 +2749,14 @@ function createRenderState(resumableState, generateStaticMarkup) {
     charsetChunks: [],
     viewportChunks: [],
     hoistableChunks: [],
-    preconnects: JSCompiler_object_inline_preconnects_1634,
-    fontPreloads: JSCompiler_object_inline_fontPreloads_1635,
-    highImagePreloads: JSCompiler_object_inline_highImagePreloads_1636,
-    styles: JSCompiler_object_inline_styles_1637,
-    bootstrapScripts: JSCompiler_object_inline_bootstrapScripts_1638,
-    scripts: JSCompiler_object_inline_scripts_1639,
-    bulkPreloads: JSCompiler_object_inline_bulkPreloads_1640,
-    preloads: JSCompiler_object_inline_preloads_1641,
+    preconnects: JSCompiler_object_inline_preconnects_1632,
+    fontPreloads: JSCompiler_object_inline_fontPreloads_1633,
+    highImagePreloads: JSCompiler_object_inline_highImagePreloads_1634,
+    styles: JSCompiler_object_inline_styles_1635,
+    bootstrapScripts: JSCompiler_object_inline_bootstrapScripts_1636,
+    scripts: JSCompiler_object_inline_scripts_1637,
+    bulkPreloads: JSCompiler_object_inline_bulkPreloads_1638,
+    preloads: JSCompiler_object_inline_preloads_1639,
     stylesToHoist: !1,
     generateStaticMarkup: generateStaticMarkup
   };
@@ -5677,4 +5669,4 @@ exports.renderToString = function (children, options) {
     'The server used "renderToString" which does not support Suspense. If you intended for this Suspense boundary to render the fallback content on the server consider throwing an Error somewhere within the Suspense boundary. If you intended to have the server wait for the suspended component please switch to "renderToReadableStream" which supports Suspense on the server'
   );
 };
-exports.version = "19.0.0-www-modern-df91acfc";
+exports.version = "19.0.0-www-modern-54e820e3";
diff --git a/compiled/facebook-www/ReactDOMServerStreaming-dev.modern.js b/compiled/facebook-www/ReactDOMServerStreaming-dev.modern.js
index 2b44cdb8ae5d1..d3625a388c3db 100644
--- a/compiled/facebook-www/ReactDOMServerStreaming-dev.modern.js
+++ b/compiled/facebook-www/ReactDOMServerStreaming-dev.modern.js
@@ -2569,7 +2569,11 @@ var startHiddenInputChunk = stringToPrecomputedChunk('<input type="hidden"');
 function pushAdditionalFormField(value, key) {
   var target = this;
   target.push(startHiddenInputChunk);
-  validateAdditionalFormField(value);
+
+  if (typeof value !== 'string') {
+    throw new Error('File/Blob fields are not yet supported in progressive forms. ' + 'It probably means you are closing over binary data or FormData in a Server Action.');
+  }
+
   pushStringAttribute(target, 'name', key);
   pushStringAttribute(target, 'value', value);
   target.push(endOfStartTagSelfClosing);
@@ -2582,21 +2586,6 @@ function pushAdditionalFormFields(target, formData) {
   }
 }
 
-function validateAdditionalFormField(value, key) {
-  if (typeof value !== 'string') {
-    throw new Error('File/Blob fields are not yet supported in progressive forms. ' + 'Will fallback to client hydration.');
-  }
-}
-
-function validateAdditionalFormFields(formData) {
-  if (formData != null) {
-    // $FlowFixMe[prop-missing]: FormData has forEach.
-    formData.forEach(validateAdditionalFormField);
-  }
-
-  return formData;
-}
-
 function getCustomFormFields(resumableState, formAction) {
   var customAction = formAction.$$FORM_ACTION;
 
@@ -2604,13 +2593,7 @@ function getCustomFormFields(resumableState, formAction) {
     var prefix = makeFormFieldPrefix(resumableState);
 
     try {
-      var customFields = formAction.$$FORM_ACTION(prefix);
-
-      if (customFields) {
-        validateAdditionalFormFields(customFields.data);
-      }
-
-      return customFields;
+      return formAction.$$FORM_ACTION(prefix);
     } catch (x) {
       if (typeof x === 'object' && x !== null && typeof x.then === 'function') {
         // Rethrow suspense.
diff --git a/compiled/facebook-www/ReactDOMServerStreaming-prod.modern.js b/compiled/facebook-www/ReactDOMServerStreaming-prod.modern.js
index 1eb87eb8c4c87..45f03e90bddf8 100644
--- a/compiled/facebook-www/ReactDOMServerStreaming-prod.modern.js
+++ b/compiled/facebook-www/ReactDOMServerStreaming-prod.modern.js
@@ -417,28 +417,20 @@ var actionJavaScriptURL = escapeTextForBrowser(
 );
 function pushAdditionalFormField(value, key) {
   this.push('<input type="hidden"');
-  validateAdditionalFormField(value);
-  pushStringAttribute(this, "name", key);
-  pushStringAttribute(this, "value", value);
-  this.push("/>");
-}
-function validateAdditionalFormField(value) {
   if ("string" !== typeof value)
     throw Error(
-      "File/Blob fields are not yet supported in progressive forms. Will fallback to client hydration."
+      "File/Blob fields are not yet supported in progressive forms. It probably means you are closing over binary data or FormData in a Server Action."
     );
+  pushStringAttribute(this, "name", key);
+  pushStringAttribute(this, "value", value);
+  this.push("/>");
 }
 function getCustomFormFields(resumableState, formAction) {
   if ("function" === typeof formAction.$$FORM_ACTION) {
     var id = resumableState.nextFormID++;
     resumableState = resumableState.idPrefix + id;
     try {
-      var customFields = formAction.$$FORM_ACTION(resumableState);
-      if (customFields) {
-        var formData = customFields.data;
-        null != formData && formData.forEach(validateAdditionalFormField);
-      }
-      return customFields;
+      return formAction.$$FORM_ACTION(resumableState);
     } catch (x) {
       if ("object" === typeof x && null !== x && "function" === typeof x.then)
         throw x;