diff --git a/package.json b/package.json
index 142e0a21932271..0979a97b2875ca 100644
--- a/package.json
+++ b/package.json
@@ -49,8 +49,8 @@
     "@babel/preset-flow": "^7.24.7",
     "@definitelytyped/dtslint": "^0.0.127",
     "@jest/create-cache-key-function": "^29.6.3",
-    "@react-native/metro-babel-transformer": "0.77.0-main",
-    "@react-native/metro-config": "0.77.0-main",
+    "@react-native/metro-babel-transformer": "0.78.0-rc.0",
+    "@react-native/metro-config": "0.78.0-rc.0",
     "@tsconfig/node18": "1.0.1",
     "@types/react": "^19.0.0",
     "@typescript-eslint/parser": "^7.1.1",
diff --git a/packages/assets/package.json b/packages/assets/package.json
index 07f15969ba657f..c697f396b18839 100644
--- a/packages/assets/package.json
+++ b/packages/assets/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/assets-registry",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Asset support code for React Native.",
   "license": "MIT",
   "repository": {
diff --git a/packages/babel-plugin-codegen/package.json b/packages/babel-plugin-codegen/package.json
index 98924cb4aae7c5..cddec2d9f3829d 100644
--- a/packages/babel-plugin-codegen/package.json
+++ b/packages/babel-plugin-codegen/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/babel-plugin-codegen",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Babel plugin to generate native module and view manager code for React Native.",
   "license": "MIT",
   "repository": {
@@ -26,7 +26,7 @@
   ],
   "dependencies": {
     "@babel/traverse": "^7.25.3",
-    "@react-native/codegen": "0.77.0-main"
+    "@react-native/codegen": "0.78.0-rc.0"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2"
diff --git a/packages/community-cli-plugin/package.json b/packages/community-cli-plugin/package.json
index f1daf525ec572e..9e7a58f97e179e 100644
--- a/packages/community-cli-plugin/package.json
+++ b/packages/community-cli-plugin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/community-cli-plugin",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Core CLI commands for React Native",
   "keywords": [
     "react-native",
@@ -22,8 +22,8 @@
     "dist"
   ],
   "dependencies": {
-    "@react-native/dev-middleware": "0.77.0-main",
-    "@react-native/metro-babel-transformer": "0.77.0-main",
+    "@react-native/dev-middleware": "0.78.0-rc.0",
+    "@react-native/metro-babel-transformer": "0.78.0-rc.0",
     "chalk": "^4.0.0",
     "debug": "^2.2.0",
     "invariant": "^2.2.4",
diff --git a/packages/core-cli-utils/package.json b/packages/core-cli-utils/package.json
index 99f098a80e8e04..9f68c2fa43901b 100644
--- a/packages/core-cli-utils/package.json
+++ b/packages/core-cli-utils/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/core-cli-utils",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "React Native CLI library for Frameworks to build on",
   "license": "MIT",
   "main": "./src/index.flow.js",
diff --git a/packages/debugger-frontend/package.json b/packages/debugger-frontend/package.json
index 03ca64cf90e151..b1b52eca925b64 100644
--- a/packages/debugger-frontend/package.json
+++ b/packages/debugger-frontend/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/debugger-frontend",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Debugger frontend for React Native based on Chrome DevTools",
   "keywords": [
     "react-native",
diff --git a/packages/dev-middleware/package.json b/packages/dev-middleware/package.json
index 3dfde88432fe5b..38aa0adda5f45e 100644
--- a/packages/dev-middleware/package.json
+++ b/packages/dev-middleware/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/dev-middleware",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Dev server middleware for React Native",
   "keywords": [
     "react-native",
@@ -23,7 +23,7 @@
   ],
   "dependencies": {
     "@isaacs/ttlcache": "^1.4.1",
-    "@react-native/debugger-frontend": "0.77.0-main",
+    "@react-native/debugger-frontend": "0.78.0-rc.0",
     "chrome-launcher": "^0.15.2",
     "chromium-edge-launcher": "^0.2.0",
     "connect": "^3.6.5",
diff --git a/packages/eslint-config-react-native/package.json b/packages/eslint-config-react-native/package.json
index a1aee9ed4437d2..160b58ecb3808c 100644
--- a/packages/eslint-config-react-native/package.json
+++ b/packages/eslint-config-react-native/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/eslint-config",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "ESLint config for React Native",
   "license": "MIT",
   "repository": {
@@ -22,7 +22,7 @@
   "dependencies": {
     "@babel/core": "^7.25.2",
     "@babel/eslint-parser": "^7.25.1",
-    "@react-native/eslint-plugin": "0.77.0-main",
+    "@react-native/eslint-plugin": "0.78.0-rc.0",
     "@typescript-eslint/eslint-plugin": "^7.1.1",
     "@typescript-eslint/parser": "^7.1.1",
     "eslint-config-prettier": "^8.5.0",
diff --git a/packages/eslint-plugin-react-native/package.json b/packages/eslint-plugin-react-native/package.json
index 82151c1f614e0c..1ca54adc8e5bfd 100644
--- a/packages/eslint-plugin-react-native/package.json
+++ b/packages/eslint-plugin-react-native/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/eslint-plugin",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "ESLint rules for @react-native/eslint-config",
   "license": "MIT",
   "repository": {
diff --git a/packages/eslint-plugin-specs/package.json b/packages/eslint-plugin-specs/package.json
index ca94060a48eec1..fa5575ea113df6 100644
--- a/packages/eslint-plugin-specs/package.json
+++ b/packages/eslint-plugin-specs/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/eslint-plugin-specs",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "ESLint rules to validate NativeModule and Component Specs",
   "license": "MIT",
   "repository": {
@@ -26,7 +26,7 @@
   "dependencies": {
     "@babel/core": "^7.25.2",
     "@babel/plugin-transform-flow-strip-types": "^7.25.2",
-    "@react-native/codegen": "0.77.0-main",
+    "@react-native/codegen": "0.78.0-rc.0",
     "make-dir": "^2.1.0",
     "pirates": "^4.0.1",
     "source-map-support": "0.5.0"
diff --git a/packages/gradle-plugin/package.json b/packages/gradle-plugin/package.json
index a3d8c09a64498c..6d29c74f6b5809 100644
--- a/packages/gradle-plugin/package.json
+++ b/packages/gradle-plugin/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/gradle-plugin",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Gradle Plugin for React Native",
   "license": "MIT",
   "repository": {
diff --git a/packages/helloworld/package.json b/packages/helloworld/package.json
index e83ee292686332..b5ab12057d35ac 100644
--- a/packages/helloworld/package.json
+++ b/packages/helloworld/package.json
@@ -1,6 +1,6 @@
 {
   "name": "helloworld",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "private": true,
   "scripts": {
     "bootstrap": "node ./cli.js bootstrap",
@@ -13,16 +13,16 @@
   },
   "dependencies": {
     "react": "19.0.0",
-    "react-native": "1000.0.0"
+    "react-native": "0.78.0-rc.0"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
     "@babel/preset-env": "^7.25.3",
     "@babel/runtime": "^7.25.0",
-    "@react-native/babel-preset": "0.77.0-main",
-    "@react-native/core-cli-utils": "0.77.0-main",
-    "@react-native/eslint-config": "0.77.0-main",
-    "@react-native/metro-config": "0.77.0-main",
+    "@react-native/babel-preset": "0.78.0-rc.0",
+    "@react-native/core-cli-utils": "0.78.0-rc.0",
+    "@react-native/eslint-config": "0.78.0-rc.0",
+    "@react-native/metro-config": "0.78.0-rc.0",
     "chalk": "^4.1.2",
     "commander": "^12.0.0",
     "eslint": "^8.19.0",
diff --git a/packages/metro-config/package.json b/packages/metro-config/package.json
index 875347ef99a9ab..ec61fe23a0ad35 100644
--- a/packages/metro-config/package.json
+++ b/packages/metro-config/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/metro-config",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Metro configuration for React Native.",
   "license": "MIT",
   "repository": {
@@ -26,8 +26,8 @@
     "dist"
   ],
   "dependencies": {
-    "@react-native/js-polyfills": "0.77.0-main",
-    "@react-native/metro-babel-transformer": "0.77.0-main",
+    "@react-native/js-polyfills": "0.78.0-rc.0",
+    "@react-native/metro-babel-transformer": "0.78.0-rc.0",
     "metro-config": "^0.81.0",
     "metro-runtime": "^0.81.0"
   }
diff --git a/packages/normalize-color/package.json b/packages/normalize-color/package.json
index 5db370d8b5c361..e7060ce3d5be42 100644
--- a/packages/normalize-color/package.json
+++ b/packages/normalize-color/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/normalize-colors",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Color normalization for React Native.",
   "license": "MIT",
   "repository": {
diff --git a/packages/polyfills/package.json b/packages/polyfills/package.json
index b80037150fdbfd..508b940849c9c4 100644
--- a/packages/polyfills/package.json
+++ b/packages/polyfills/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/js-polyfills",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Polyfills for React Native.",
   "license": "MIT",
   "repository": {
diff --git a/packages/react-native-babel-preset/package.json b/packages/react-native-babel-preset/package.json
index ba57efc6941582..f350ffa3a8bc7a 100644
--- a/packages/react-native-babel-preset/package.json
+++ b/packages/react-native-babel-preset/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/babel-preset",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Babel preset for React Native applications",
   "main": "src/index.js",
   "repository": {
@@ -55,7 +55,7 @@
     "@babel/plugin-transform-typescript": "^7.25.2",
     "@babel/plugin-transform-unicode-regex": "^7.24.7",
     "@babel/template": "^7.25.0",
-    "@react-native/babel-plugin-codegen": "0.77.0-main",
+    "@react-native/babel-plugin-codegen": "0.78.0-rc.0",
     "babel-plugin-syntax-hermes-parser": "0.25.1",
     "babel-plugin-transform-flow-enums": "^0.0.2",
     "react-refresh": "^0.14.0"
diff --git a/packages/react-native-babel-transformer/package.json b/packages/react-native-babel-transformer/package.json
index 524baafe464a56..5c5f64c8f1e031 100644
--- a/packages/react-native-babel-transformer/package.json
+++ b/packages/react-native-babel-transformer/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/metro-babel-transformer",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Babel transformer for React Native applications.",
   "main": "src/index.js",
   "repository": {
@@ -16,7 +16,7 @@
   "license": "MIT",
   "dependencies": {
     "@babel/core": "^7.25.2",
-    "@react-native/babel-preset": "0.77.0-main",
+    "@react-native/babel-preset": "0.78.0-rc.0",
     "hermes-parser": "0.25.1",
     "nullthrows": "^1.1.1"
   },
diff --git a/packages/react-native-bots/package.json b/packages/react-native-bots/package.json
index facc1e3fcab814..635fac9cb47382 100644
--- a/packages/react-native-bots/package.json
+++ b/packages/react-native-bots/package.json
@@ -1,7 +1,7 @@
 {
   "name": "@react-native/bots",
   "description": "React Native Bots",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "private": true,
   "license": "MIT",
   "repository": {
diff --git a/packages/react-native-codegen-typescript-test/package.json b/packages/react-native-codegen-typescript-test/package.json
index 5d124daf46c8b2..b715e0a3024ce1 100644
--- a/packages/react-native-codegen-typescript-test/package.json
+++ b/packages/react-native-codegen-typescript-test/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/codegen-typescript-test",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "private": true,
   "description": "TypeScript related unit test for @react-native/codegen",
   "license": "MIT",
@@ -19,7 +19,7 @@
     "prepare": "yarn run build"
   },
   "dependencies": {
-    "@react-native/codegen": "0.77.0-main"
+    "@react-native/codegen": "0.78.0-rc.0"
   },
   "devDependencies": {
     "@babel/core": "^7.25.2",
diff --git a/packages/react-native-codegen/package.json b/packages/react-native-codegen/package.json
index 80f3e14e658670..7c041c00789920 100644
--- a/packages/react-native-codegen/package.json
+++ b/packages/react-native-codegen/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/codegen",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Code generation tools for React Native",
   "license": "MIT",
   "repository": {
diff --git a/packages/react-native-fantom/package.json b/packages/react-native-fantom/package.json
index c4c61cc5384f62..0e0fbfb93b1e76 100644
--- a/packages/react-native-fantom/package.json
+++ b/packages/react-native-fantom/package.json
@@ -1,11 +1,11 @@
 {
-   "name": "@react-native/fantom",
-   "private": true,
-   "version": "0.77.0-main",
-   "main": "src/index.js",
-   "description": "Internal integration testing and benchmarking tool for React Native",
-   "peerDependencies":{
-      "jest":"^29.7.0",
-      "jest-snapshot": "^29.7.0"
-   }
+  "name": "@react-native/fantom",
+  "private": true,
+  "version": "0.78.0-rc.0",
+  "main": "src/index.js",
+  "description": "Internal integration testing and benchmarking tool for React Native",
+  "peerDependencies": {
+    "jest": "^29.7.0",
+    "jest-snapshot": "^29.7.0"
+  }
 }
diff --git a/packages/react-native-info/package.json b/packages/react-native-info/package.json
index 6381b4f2cb631b..64a07beea34a2d 100644
--- a/packages/react-native-info/package.json
+++ b/packages/react-native-info/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-info",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "main": "build/index.js",
   "license": "MIT",
   "private": true,
diff --git a/packages/react-native-popup-menu-android/package.json b/packages/react-native-popup-menu-android/package.json
index c07e3fd1ad9fd0..b918fa89145410 100644
--- a/packages/react-native-popup-menu-android/package.json
+++ b/packages/react-native-popup-menu-android/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/popup-menu-android",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "PopupMenu for the Android platform",
   "main": "index.js",
   "files": [
@@ -17,7 +17,7 @@
   ],
   "license": "MIT",
   "devDependencies": {
-    "@react-native/codegen": "0.77.0-main"
+    "@react-native/codegen": "0.78.0-rc.0"
   },
   "peerDependencies": {
     "@types/react": "^19.0.0",
diff --git a/packages/react-native-test-library/package.json b/packages/react-native-test-library/package.json
index c378871432ff36..221bc43b331f92 100644
--- a/packages/react-native-test-library/package.json
+++ b/packages/react-native-test-library/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/oss-library-example",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "private": true,
   "description": "Package that includes native module exapmle, native component example, targets both the old and the new architecture. It should serve as an example of a real-world OSS library.",
   "license": "MIT",
@@ -26,8 +26,8 @@
   ],
   "devDependencies": {
     "@babel/core": "^7.25.2",
-    "@react-native/babel-preset": "0.77.0-main",
-    "react-native": "1000.0.0"
+    "@react-native/babel-preset": "0.78.0-rc.0",
+    "react-native": "0.78.0-rc.0"
   },
   "peerDependencies": {
     "react": "*",
diff --git a/packages/react-native/Libraries/Core/ReactNativeVersion.js b/packages/react-native/Libraries/Core/ReactNativeVersion.js
index 786a34fcdd1f2c..8aaf7fffc68754 100644
--- a/packages/react-native/Libraries/Core/ReactNativeVersion.js
+++ b/packages/react-native/Libraries/Core/ReactNativeVersion.js
@@ -14,10 +14,10 @@ const version: $ReadOnly<{
   patch: number,
   prerelease: string | null,
 }> = {
-  major: 1000,
-  minor: 0,
+  major: 0,
+  minor: 78,
   patch: 0,
-  prerelease: null,
+  prerelease: 'rc.0',
 };
 
 module.exports = {version};
diff --git a/packages/react-native/React/Base/RCTVersion.m b/packages/react-native/React/Base/RCTVersion.m
index 69ce4f75320e63..4aca54d56d509c 100644
--- a/packages/react-native/React/Base/RCTVersion.m
+++ b/packages/react-native/React/Base/RCTVersion.m
@@ -21,10 +21,10 @@
   static dispatch_once_t onceToken;
   dispatch_once(&onceToken, ^(void){
     __rnVersion = @{
-                  RCTVersionMajor: @(1000),
-                  RCTVersionMinor: @(0),
+                  RCTVersionMajor: @(0),
+                  RCTVersionMinor: @(78),
                   RCTVersionPatch: @(0),
-                  RCTVersionPrerelease: [NSNull null],
+                  RCTVersionPrerelease: @"rc.0",
                   };
   });
   return __rnVersion;
diff --git a/packages/react-native/ReactAndroid/gradle.properties b/packages/react-native/ReactAndroid/gradle.properties
index 8866d933a00e53..cfca124afa93d6 100644
--- a/packages/react-native/ReactAndroid/gradle.properties
+++ b/packages/react-native/ReactAndroid/gradle.properties
@@ -1,4 +1,4 @@
-VERSION_NAME=1000.0.0
+VERSION_NAME=0.78.0-rc.0
 react.internal.publishingGroup=com.facebook.react
 
 android.useAndroidX=true
diff --git a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/modules/systeminfo/ReactNativeVersion.java b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/modules/systeminfo/ReactNativeVersion.java
index dd881ce78cacdc..b25e3400d51f55 100644
--- a/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/modules/systeminfo/ReactNativeVersion.java
+++ b/packages/react-native/ReactAndroid/src/main/java/com/facebook/react/modules/systeminfo/ReactNativeVersion.java
@@ -15,8 +15,8 @@
 
 public class ReactNativeVersion {
   public static final Map<String, Object> VERSION = MapBuilder.<String, Object>of(
-      "major", 1000,
-      "minor", 0,
+      "major", 0,
+      "minor", 78,
       "patch", 0,
-      "prerelease", null);
+      "prerelease", "rc.0");
 }
diff --git a/packages/react-native/ReactCommon/cxxreact/ReactNativeVersion.h b/packages/react-native/ReactCommon/cxxreact/ReactNativeVersion.h
index c2509cc0404a27..53c51cd63ee985 100644
--- a/packages/react-native/ReactCommon/cxxreact/ReactNativeVersion.h
+++ b/packages/react-native/ReactCommon/cxxreact/ReactNativeVersion.h
@@ -15,10 +15,10 @@
 namespace facebook::react {
 
 constexpr struct {
-  int32_t Major = 1000;
-  int32_t Minor = 0;
+  int32_t Major = 0;
+  int32_t Minor = 78;
   int32_t Patch = 0;
-  std::string_view Prerelease = "";
+  std::string_view Prerelease = "rc.0";
 } ReactNativeVersion;
 
 } // namespace facebook::react
diff --git a/packages/react-native/package.json b/packages/react-native/package.json
index b2df8ae87aab28..9f6b83aa9c3172 100644
--- a/packages/react-native/package.json
+++ b/packages/react-native/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native",
-  "version": "1000.0.0",
+  "version": "0.78.0-rc.0",
   "description": "A framework for building native apps using React",
   "license": "MIT",
   "repository": {
@@ -108,13 +108,13 @@
   },
   "dependencies": {
     "@jest/create-cache-key-function": "^29.6.3",
-    "@react-native/assets-registry": "0.77.0-main",
-    "@react-native/codegen": "0.77.0-main",
-    "@react-native/community-cli-plugin": "0.77.0-main",
-    "@react-native/gradle-plugin": "0.77.0-main",
-    "@react-native/js-polyfills": "0.77.0-main",
-    "@react-native/normalize-colors": "0.77.0-main",
-    "@react-native/virtualized-lists": "0.77.0-main",
+    "@react-native/assets-registry": "0.78.0-rc.0",
+    "@react-native/codegen": "0.78.0-rc.0",
+    "@react-native/community-cli-plugin": "0.78.0-rc.0",
+    "@react-native/gradle-plugin": "0.78.0-rc.0",
+    "@react-native/js-polyfills": "0.78.0-rc.0",
+    "@react-native/normalize-colors": "0.78.0-rc.0",
+    "@react-native/virtualized-lists": "0.78.0-rc.0",
     "abort-controller": "^3.0.0",
     "anser": "^1.4.9",
     "ansi-regex": "^5.0.0",
diff --git a/packages/rn-tester/package.json b/packages/rn-tester/package.json
index 00e65fc2e61451..31af89e70b8ae4 100644
--- a/packages/rn-tester/package.json
+++ b/packages/rn-tester/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/tester",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "private": true,
   "description": "React Native tester app.",
   "license": "MIT",
@@ -27,8 +27,8 @@
     "e2e-test-ios": "./scripts/maestro-test-ios.sh"
   },
   "dependencies": {
-    "@react-native/oss-library-example": "0.77.0-main",
-    "@react-native/popup-menu-android": "0.77.0-main",
+    "@react-native/oss-library-example": "0.78.0-rc.0",
+    "@react-native/popup-menu-android": "0.78.0-rc.0",
     "flow-enums-runtime": "^0.0.6",
     "invariant": "^2.2.4",
     "nullthrows": "^1.1.1"
diff --git a/packages/typescript-config/package.json b/packages/typescript-config/package.json
index ac400bc87f4a58..c9f48c7ec84124 100644
--- a/packages/typescript-config/package.json
+++ b/packages/typescript-config/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/typescript-config",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Default TypeScript configuration for React Native apps",
   "license": "MIT",
   "repository": {
diff --git a/packages/virtualized-lists/package.json b/packages/virtualized-lists/package.json
index d292128acb634b..3bc61503640742 100644
--- a/packages/virtualized-lists/package.json
+++ b/packages/virtualized-lists/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@react-native/virtualized-lists",
-  "version": "0.77.0-main",
+  "version": "0.78.0-rc.0",
   "description": "Virtualized lists for React Native.",
   "license": "MIT",
   "repository": {