react · SamChou19815 · Aug 6, 2026
diff --git a/package.json b/package.json
@@ -93,8 +93,6 @@
     "flow-eslint": "0.325.0",
     "flow-parser": "0.325.0",
     "flow-transform": "0.325.0",
-    "hermes-eslint": "0.37.0",
-    "hermes-transform": "0.37.0",
     "ini": "^5.0.0",
     "inquirer": "^7.1.0",
     "jest": "^29.7.0",

diff --git a/packages/eslint-plugin-react-native/package.json b/packages/eslint-plugin-react-native/package.json
@@ -27,8 +27,7 @@
   "devDependencies": {
     "babel-plugin-syntax-hermes-parser": "0.37.0",
     "flow-parser": "0.325.0",
-    "flow-eslint": "0.325.0",
-    "hermes-eslint": "0.37.0"
+    "flow-eslint": "0.325.0"
   },
   "engines": {
     "node": "^22.13.0 || ^24.3.0 || >= 26.0.0"

diff --git a/packages/eslint-plugin-specs/package.json b/packages/eslint-plugin-specs/package.json
@@ -40,8 +40,7 @@
     "source-map-support": "0.5.0"
   },
   "devDependencies": {
-    "flow-eslint": "0.325.0",
-    "hermes-eslint": "0.37.0"
+    "flow-eslint": "0.325.0"
   },
   "engines": {
     "node": "^22.13.0 || ^24.3.0 || >= 26.0.0"

diff --git a/packages/react-native-babel-transformer/package.json b/packages/react-native-babel-transformer/package.json
@@ -29,7 +29,6 @@
     "@babel/core": "^7.25.2",
     "@react-native/babel-preset": "0.87.0-main",
     "flow-parser": "0.325.0",
-    "hermes-parser": "0.37.0",
     "nullthrows": "^1.1.1"
   },
   "peerDependencies": {

diff --git a/packages/react-native-codegen/package.json b/packages/react-native-codegen/package.json
@@ -32,7 +32,6 @@
     "@babel/core": "^7.25.2",
     "@babel/parser": "^7.29.0",
     "flow-parser": "0.325.0",
-    "hermes-parser": "0.37.0",
     "invariant": "^2.2.4",
     "nullthrows": "^1.1.1",
     "tinyglobby": "^0.2.15",
@@ -48,7 +47,6 @@
     "@babel/preset-env": "^7.25.3",
     "babel-plugin-syntax-hermes-parser": "0.37.0",
     "flow-estree": "0.325.0",
-    "hermes-estree": "0.37.0",
     "micromatch": "^4.0.4",
     "prettier": "3.9.4",
     "rimraf": "^3.0.2"

diff --git a/packages/react-native/Libraries/Animated/components/AnimatedFlatList.js b/packages/react-native/Libraries/Animated/components/AnimatedFlatList.js
@@ -14,10 +14,12 @@ import FlatList, {type FlatListProps} from '../../Lists/FlatList';
 import createAnimatedComponent from '../createAnimatedComponent';
 import * as React from 'react';
 
-export default createAnimatedComponent(FlatList) as $FlowFixMe as component<
+const AnimatedFlatList: component<
   // $FlowExpectedError[unclear-type]
   ItemT = any,
 >(
   ref?: React.RefSetter<FlatList<ItemT>>,
   ...props: AnimatedProps<FlatListProps<ItemT>>
-);
+) = createAnimatedComponent(FlatList) as $FlowFixMe;
+
+export default AnimatedFlatList;
diff --git a/packages/react-native/Libraries/Animated/components/AnimatedSectionList.js b/packages/react-native/Libraries/Animated/components/AnimatedSectionList.js
@@ -15,12 +15,14 @@ import createAnimatedComponent from '../createAnimatedComponent';
 import * as React from 'react';
 
 // $FlowFixMe[incompatible-type]
-export default createAnimatedComponent(SectionList) as $FlowFixMe as component<
+const AnimatedSectionList: component<
   // $FlowExpectedError[unclear-type]
   ItemT = any,
   // $FlowExpectedError[unclear-type]
   SectionT = any,
 >(
   ref?: React.RefSetter<SectionList<ItemT, SectionT>>,
   ...props: AnimatedProps<SectionListProps<ItemT, SectionT>>
-);
+) = createAnimatedComponent(SectionList) as $FlowFixMe;
+
+export default AnimatedSectionList;
diff --git a/packages/react-native/Libraries/Components/Pressable/Pressable.js b/packages/react-native/Libraries/Components/Pressable/Pressable.js
@@ -370,10 +370,10 @@ function usePressState(forcePressed: boolean): [boolean, (boolean) => void] {
   return [pressed || forcePressed, setPressed];
 }
 
-const MemoedPressable = memo(Pressable);
-MemoedPressable.displayName = 'Pressable';
-
-export default MemoedPressable as component(
+const MemoedPressable: component(
   ref?: React.RefSetter<PressableInstance>,
   ...props: PressableProps
-);
+) = memo(Pressable);
+MemoedPressable.displayName = 'Pressable';
+
+export default MemoedPressable;
diff --git a/packages/react-native/ReactNativeApi.d.ts b/packages/react-native/ReactNativeApi.d.ts
@@ -4,7 +4,7 @@
  * This source code is licensed under the MIT license found in the
  * LICENSE file in the root directory of this source tree.
  *
- * @generated SignedSource<<53280bff7703ea0e9e912e22543fd568>>
+ * @generated SignedSource<<e65e3e0b15c846ea55df406b6d49dc6c>>
  *
  * This file was generated by scripts/js-api/build-types/index.js.
  */
@@ -22,11 +22,7 @@
 /* eslint-disable redundant-undefined/redundant-undefined */
 
 import * as React from "react"
-declare const $$AnimatedFlatList: <ItemT = any>(
-  props: Omit<AnimatedProps<FlatListProps<ItemT>>, "ref"> & {
-    ref?: React.Ref<FlatList<ItemT>>
-  },
-) => React.ReactNode
+declare const $$AnimatedFlatList: typeof AnimatedFlatList_default
 declare const $$AnimatedImage: AnimatedComponentType<
   React.JSX.LibraryManagedAttributes<
     typeof Image,
@@ -62,11 +58,7 @@ declare const $$AnimatedImplementation: {
   ValueXY: typeof AnimatedValueXY_default
 }
 declare const $$AnimatedScrollView: typeof AnimatedScrollView_default
-declare const $$AnimatedSectionList: <ItemT = any, SectionT = any>(
-  props: Omit<AnimatedProps<SectionListProps<ItemT, SectionT>>, "ref"> & {
-    ref?: React.Ref<SectionList<ItemT, SectionT>>
-  },
-) => React.ReactNode
+declare const $$AnimatedSectionList: typeof AnimatedSectionList_default
 declare const $$AnimatedText: AnimatedComponentType<
   TextProps,
   React.ComponentRef<typeof Text>
@@ -145,10 +137,20 @@ declare const addImpl: (
   a: AnimatedNode_default | number,
   b: AnimatedNode_default | number,
 ) => AnimatedAddition_default
+declare const AnimatedFlatList_default: <ItemT = any>(
+  props: Omit<AnimatedProps<FlatListProps<ItemT>>, "ref"> & {
+    ref?: React.Ref<FlatList<ItemT>>
+  },
+) => React.ReactNode
 declare const AnimatedScrollView_default: AnimatedComponentType<
   ScrollViewProps,
   AnimatedScrollViewInstance
 >
+declare const AnimatedSectionList_default: <ItemT = any, SectionT = any>(
+  props: Omit<AnimatedProps<SectionListProps<ItemT, SectionT>>, "ref"> & {
+    ref?: React.Ref<SectionList<ItemT, SectionT>>
+  },
+) => React.ReactNode
 declare const AppState: typeof AppState_default
 declare const AppState_default: AppStateImpl
 declare const AssetRegistry: {
@@ -269,6 +271,11 @@ declare const loopImpl: (
   animation: CompositeAnimation,
   $$PARAM_1$$?: LoopAnimationConfig,
 ) => CompositeAnimation
+declare const MemoedPressable_default: (
+  props: PressableProps & {
+    ref?: React.Ref<PressableInstance>
+  },
+) => React.ReactNode
 declare const Modal: typeof Wrapper_default
 declare const modulo: typeof $$AnimatedImplementation.modulo
 declare const moduloImpl: (
@@ -311,11 +318,7 @@ declare const Presets: {
   linear: LayoutAnimationConfig
   spring: LayoutAnimationConfig
 }
-declare const Pressable: (
-  props: PressableProps & {
-    ref?: React.Ref<PressableInstance>
-  },
-) => React.ReactNode
+declare const Pressable: typeof MemoedPressable_default
 declare const processColor: typeof processColor_default
 declare const ProgressBarAndroid: typeof ProgressBarAndroid_default
 declare let ProgressBarAndroid_default: (
@@ -5721,7 +5724,7 @@ export {
   AlertOptions, // 8a116d2a
   AlertType, // 5ab91217
   AndroidKeyboardEvent, // e03becc8
-  Animated, // 50cbe576
+  Animated, // d505a1c9
   AppConfig, // 35c0ca70
   AppRegistry, // 1e8c5a00
   AppState, // 12012be5
@@ -5880,7 +5883,7 @@ export {
   PointerEvent, // ff599afe
   PressabilityConfig, // fea539a5
   PressabilityEventHandlers, // c222648b
-  Pressable, // 7008c06f
+  Pressable, // ed5391ac
   PressableAndroidRippleConfig, // ee32eaca
   PressableInstance, // eebfe911
   PressableProps, // d6bfa55b

diff --git a/packages/react-native/src/private/components/virtualcollection/column/VirtualColumn.js b/packages/react-native/src/private/components/virtualcollection/column/VirtualColumn.js
@@ -26,18 +26,15 @@ component VirtualColumnLayout(
   );
 }
 
-const VirtualColumn = createVirtualCollectionView(
-  VirtualColumnLayout,
-  VirtualColumnGenerator,
-);
-
 // TODO: Figure out component generic resolution.
 // @see https://fb.workplace.com/groups/flow/posts/29355518614070041
-// export default VirtualColumn as VirtualCollectionViewComponent<VirtualColumnLayoutProps>;
-export default VirtualColumn as component<out TItem extends Item>(
+// const VirtualColumn: VirtualCollectionViewComponent<VirtualColumnLayoutProps> = ...
+const VirtualColumn: component<out TItem extends Item>(
   children: (item: TItem, key: string) => React.Node,
   items: VirtualCollection<TItem>,
   itemToKey?: (TItem) => string,
   removeClippedSubviews?: boolean,
   testID?: ?string,
-);
+) = createVirtualCollectionView(VirtualColumnLayout, VirtualColumnGenerator);
+
+export default VirtualColumn;
diff --git a/packages/react-native/src/private/components/virtualcollection/row/VirtualRow.js b/packages/react-native/src/private/components/virtualcollection/row/VirtualRow.js
@@ -26,18 +26,15 @@ component VirtualRowLayout(
   );
 }
 
-const VirtualRow = createVirtualCollectionView(
-  VirtualRowLayout,
-  VirtualRowGenerator,
-);
-
 // TODO: Figure out component generic resolution.
 // @see https://fb.workplace.com/groups/flow/posts/29355518614070041
-// export default VirtualRow as VirtualCollectionViewComponent<VirtualRowLayoutProps>;
-export default VirtualRow as component<out TItem extends Item>(
+// const VirtualRow: VirtualCollectionViewComponent<VirtualRowLayoutProps> = ...
+const VirtualRow: component<out TItem extends Item>(
   children: (item: TItem, key: string) => React.Node,
   items: VirtualCollection<TItem>,
   itemToKey?: (TItem) => string,
   removeClippedSubviews?: boolean,
   testID?: ?string,
-);
+) = createVirtualCollectionView(VirtualRowLayout, VirtualRowGenerator);
+
+export default VirtualRow;
diff --git a/scripts/js-api/build-types/resolution/getDependencies.js b/scripts/js-api/build-types/resolution/getDependencies.js
@@ -9,12 +9,12 @@
  */
 
 import type {DependencyContext} from './simpleResolve';
-import type {ParseResult} from 'hermes-transform/dist/transform/parse';
+import type {ParseResult} from 'flow-transform/dist/transform/parse';
 
 const resolveTypeInputFile = require('./resolveTypeInputFile');
 const simpleResolve = require('./simpleResolve');
 const debug = require('debug')('build-types:resolution');
-const {traverse} = require('hermes-transform/dist/traverse/traverse');
+const {traverse} = require('flow-transform/dist/traverse/traverse');
 
 const reportedUnresolvedDeps = new Set<string>();
 

diff --git a/scripts/js-api/build-types/transforms/flow/__tests__/ensureNoUnprefixedProps-test.js b/scripts/js-api/build-types/transforms/flow/__tests__/ensureNoUnprefixedProps-test.js
@@ -9,7 +9,7 @@
  */
 
 const ensureNoUnprefixedProps = require('../ensureNoUnprefixedProps');
-const {parse, print} = require('hermes-transform');
+const {parse, print} = require('flow-transform');
 
 const prettierOptions = {parser: 'babel'};
 

diff --git a/scripts/js-api/build-types/transforms/flow/__tests__/reattachDocComments-test.js b/scripts/js-api/build-types/transforms/flow/__tests__/reattachDocComments-test.js
@@ -9,7 +9,7 @@
  */
 
 const reattachDocComments = require('../reattachDocComments');
-const {parse, print} = require('hermes-transform');
+const {parse, print} = require('flow-transform');
 
 const prettierOptions = {parser: 'babel'};
 

diff --git a/scripts/js-api/build-types/transforms/flow/__tests__/replaceEmptyWithNever-test.js b/scripts/js-api/build-types/transforms/flow/__tests__/replaceEmptyWithNever-test.js
@@ -9,7 +9,7 @@
  */
 
 const replaceEmptyWithNever = require('../replaceEmptyWithNever');
-const {parse, print} = require('hermes-transform');
+const {parse, print} = require('flow-transform');
 
 const prettierOptions = {parser: 'babel'};
 

diff --git a/...-api/build-types/transforms/flow/__tests__/replaceNullablePropertiesWithUndefined-test.js b/...-api/build-types/transforms/flow/__tests__/replaceNullablePropertiesWithUndefined-test.js
@@ -9,7 +9,7 @@
  */
 
 const replaceNullablePropertiesWithUndefined = require('../replaceNullablePropertiesWithUndefined');
-const {parse, print} = require('hermes-transform');
+const {parse, print} = require('flow-transform');
 
 const prettierOptions = {parser: 'babel'};
 

diff --git a/scripts/js-api/build-types/transforms/flow/__tests__/replaceRequiresWithImports-test.js b/scripts/js-api/build-types/transforms/flow/__tests__/replaceRequiresWithImports-test.js
@@ -9,7 +9,7 @@
  */
 
 const replaceRequiresWithImports = require('../replaceRequiresWithImports');
-const {parse, print} = require('hermes-transform');
+const {parse, print} = require('flow-transform');
 
 const prettierOptions = {parser: 'babel'};
 

diff --git a/scripts/js-api/build-types/transforms/flow/__tests__/replaceStringishWithString-test.js b/scripts/js-api/build-types/transforms/flow/__tests__/replaceStringishWithString-test.js
@@ -9,7 +9,7 @@
  */
 
 const replaceStringishWithString = require('../replaceStringishWithString');
-const {parse, print} = require('hermes-transform');
+const {parse, print} = require('flow-transform');
 
 const prettierOptions = {parser: 'babel'};
 

diff --git a/scripts/js-api/build-types/transforms/flow/__tests__/stripPrivateProperties-test.js b/scripts/js-api/build-types/transforms/flow/__tests__/stripPrivateProperties-test.js
@@ -9,7 +9,7 @@
  */
 
 const stripPrivateProperties = require('../stripPrivateProperties');
-const {parse, print} = require('hermes-transform');
+const {parse, print} = require('flow-transform');
 
 const prettierOptions = {parser: 'babel'};
 

diff --git a/scripts/js-api/build-types/transforms/flow/ensureNoUnprefixedProps.js b/scripts/js-api/build-types/transforms/flow/ensureNoUnprefixedProps.js
@@ -8,11 +8,11 @@
  * @format
  */
 
-import type {TransformVisitor} from 'hermes-transform';
-import type {ParseResult} from 'hermes-transform/dist/transform/parse';
-import type {TransformASTResult} from 'hermes-transform/dist/transform/transformAST';
+import type {TransformVisitor} from 'flow-transform';
+import type {ParseResult} from 'flow-transform/dist/transform/parse';
+import type {TransformASTResult} from 'flow-transform/dist/transform/transformAST';
 
-const {transformAST} = require('hermes-transform/dist/transform/transformAST');
+const {transformAST} = require('flow-transform/dist/transform/transformAST');
 
 const visitors: TransformVisitor = context => ({
   TypeAlias(node): void {

diff --git a/scripts/js-api/build-types/transforms/flow/reattachDocComments.js b/scripts/js-api/build-types/transforms/flow/reattachDocComments.js
@@ -14,12 +14,12 @@ import type {
   ModuleDeclaration,
   Program,
   Statement,
-} from 'hermes-estree/dist';
-import type {TransformVisitor} from 'hermes-transform';
-import type {ParseResult} from 'hermes-transform/dist/transform/parse';
-import type {TransformASTResult} from 'hermes-transform/dist/transform/transformAST';
+} from 'flow-estree/dist';
+import type {TransformVisitor} from 'flow-transform';
+import type {ParseResult} from 'flow-transform/dist/transform/parse';
+import type {TransformASTResult} from 'flow-transform/dist/transform/transformAST';
 
-const {transformAST} = require('hermes-transform/dist/transform/transformAST');
+const {transformAST} = require('flow-transform/dist/transform/transformAST');
 
 type BodyNode = Statement | ModuleDeclaration;
 
@@ -177,15 +177,11 @@ function findDeclarationByName(
       return {statement, kind: declaration.type};
     }
 
-    // `declare const X` in `.js.flow` declaration files
+    // `DeclareVariable` is `declare const X` in `.js.flow` declaration files
     if (
-      declaration.type === 'DeclareVariable' &&
-      declaration.id.name === name
+      declaration.type === 'VariableDeclaration' ||
+      declaration.type === 'DeclareVariable'
     ) {
-      return {statement, kind: declaration.type};
-    }
-
-    if (declaration.type === 'VariableDeclaration') {
       for (const declarator of declaration.declarations) {
         if (
           declarator.id.type === 'Identifier' &&

diff --git a/scripts/js-api/build-types/transforms/flow/replaceEmptyWithNever.js b/scripts/js-api/build-types/transforms/flow/replaceEmptyWithNever.js
@@ -8,11 +8,11 @@
  * @format
  */
 
-import type {TransformVisitor} from 'hermes-transform';
-import type {ParseResult} from 'hermes-transform/dist/transform/parse';
-import type {TransformASTResult} from 'hermes-transform/dist/transform/transformAST';
+import type {TransformVisitor} from 'flow-transform';
+import type {ParseResult} from 'flow-transform/dist/transform/parse';
+import type {TransformASTResult} from 'flow-transform/dist/transform/transformAST';
 
-const {transformAST} = require('hermes-transform/dist/transform/transformAST');
+const {transformAST} = require('flow-transform/dist/transform/transformAST');
 
 const visitors: TransformVisitor = context => ({
   EmptyTypeAnnotation(node): void {