callstack · adamTrz · Jun 1, 2026 · Jun 2, 2026 · Jun 2, 2026 · Jun 3, 2026
diff --git a/.changeset/calm-poets-film.md b/.changeset/calm-poets-film.md
@@ -0,0 +1,5 @@
+---
+'brownfield': patch
+---
+
+feat: support Expo SDK 56 in the Brownfield package and example apps
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
@@ -19,6 +19,7 @@ jobs:
       rnapp: ${{ steps.filter.outputs.rnapp }}
       expo54: ${{ steps.filter.outputs.expo54 }}
       expo55: ${{ steps.filter.outputs.expo55 }}
+      expo56: ${{ steps.filter.outputs.expo56 }}
       androidapp: ${{ steps.filter.outputs.androidapp }}
       appleapp: ${{ steps.filter.outputs.appleapp }}
       ci: ${{ steps.filter.outputs.ci }}
@@ -39,6 +40,8 @@ jobs:
               - 'apps/ExpoApp54/**'
             expo55:
               - 'apps/ExpoApp55/**'
+            expo56:
+              - 'apps/ExpoApp56/**'
             androidapp:
               - 'apps/AndroidApp/**'
             appleapp:
@@ -120,6 +123,7 @@ jobs:
       (
         needs.filter.outputs.expo54 == 'true' ||
         needs.filter.outputs.expo55 == 'true' ||
+        needs.filter.outputs.expo56 == 'true' ||
         needs.filter.outputs.androidapp == 'true' ||
         needs.filter.outputs.packages == 'true' ||
         needs.filter.outputs.ci == 'true'
@@ -130,6 +134,7 @@ jobs:
         include:
           - version: '54'
           - version: '55'
+          - version: '56'
 
     steps:
       - name: Checkout
@@ -200,6 +205,7 @@ jobs:
       (
         needs.filter.outputs.expo54 == 'true' ||
         needs.filter.outputs.expo55 == 'true' ||
+        needs.filter.outputs.expo56 == 'true' ||
         needs.filter.outputs.appleapp == 'true' ||
         needs.filter.outputs.packages == 'true' ||
         needs.filter.outputs.ci == 'true'
@@ -210,6 +216,7 @@ jobs:
         include:
           - version: '54'
           - version: '55'
+          - version: '56'
 
     steps:
       - name: Checkout

diff --git a/apps/AndroidApp/app/build.gradle.kts b/apps/AndroidApp/app/build.gradle.kts
@@ -35,6 +35,9 @@ android {
         create("expo55") {
             dimension = "app"
         }
+        create("expo56") {
+            dimension = "app"
+        }
         create("vanilla") {
             dimension = "app"
         }
@@ -71,6 +74,7 @@ dependencies {
     implementation(libs.androidx.compose.ui.tooling.preview)
     implementation(libs.androidx.compose.material3)
     implementation(libs.androidx.appcompat)
+    add("expo56Implementation", libs.brownfieldlib.expo56)
     add("expo55Implementation", libs.brownfieldlib.expo55)
     add("expo54Implementation", libs.brownfieldlib.expo54)
     add("vanillaImplementation", libs.brownfieldlib.vanilla)

diff --git a/apps/AndroidApp/app/src/expo56/java/com/callstack/brownfield/android/expo/BrownfieldStore.kt b/apps/AndroidApp/app/src/expo56/java/com/callstack/brownfield/android/expo/BrownfieldStore.kt
@@ -0,0 +1,4 @@
+package com.callstack.brownfield.android.example
+
+typealias BrownfieldStore = com.callstack.rnbrownfield.demo.expoapp56.BrownfieldStore
+typealias User = com.callstack.rnbrownfield.demo.expoapp56.User
diff --git a/...roidApp/app/src/expo56/java/com/callstack/brownfield/android/expo/ReactNativeConstants.kt b/...roidApp/app/src/expo56/java/com/callstack/brownfield/android/expo/ReactNativeConstants.kt
@@ -0,0 +1,6 @@
+package com.callstack.brownfield.android.example
+
+object ReactNativeConstants {
+    const val MAIN_MODULE_NAME = "main"
+    const val APP_NAME = "Android (Expo 56)"
+}
diff --git a/...idApp/app/src/expo56/java/com/callstack/brownfield/android/expo/ReactNativeHostManager.kt b/...idApp/app/src/expo56/java/com/callstack/brownfield/android/expo/ReactNativeHostManager.kt
@@ -0,0 +1,3 @@
+package com.callstack.brownfield.android.example
+
+typealias ReactNativeHostManager = com.callstack.rnbrownfield.demo.expoapp56.ReactNativeHostManager
diff --git a/apps/AndroidApp/gradle/libs.versions.toml b/apps/AndroidApp/gradle/libs.versions.toml
@@ -16,6 +16,7 @@ gson = "2.13.2"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
+brownfieldlib-expo56 = { module = "com.callstack.rnbrownfield.demo.expoapp56:brownfieldlib", version.ref = "brownfieldlib" }
 brownfieldlib-expo55 = { module = "com.callstack.rnbrownfield.demo.expoapp55:brownfieldlib", version.ref = "brownfieldlib" }
 brownfieldlib-expo54 = { module = "com.callstack.rnbrownfield.demo.expoapp54:brownfieldlib", version.ref = "brownfieldlib" }
 brownfieldlib-vanilla = { module = "com.rnapp:brownfieldlib", version.ref = "brownfieldlib" }
@@ -40,4 +41,3 @@ gson = { module = "com.google.code.gson:gson", version.ref = "gson" }
 [plugins]
 android-application = { id = "com.android.application", version.ref = "agp" }
 kotlin-compose = { id = "org.jetbrains.kotlin.plugin.compose", version.ref = "kotlin" }
-
diff --git a/apps/AndroidApp/package.json b/apps/AndroidApp/package.json
@@ -3,7 +3,8 @@
   "version": "0.0.1",
   "private": true,
   "scripts": {
-    "build:example:android-consumer:expo": "./gradlew assembleExpo55Release",
+    "build:example:android-consumer:expo": "./gradlew assembleExpo56Release",
+    "build:example:android-consumer:expo56": "./gradlew assembleExpo56Release",
     "build:example:android-consumer:expo55": "./gradlew assembleExpo55Release",
     "build:example:android-consumer:expo54": "./gradlew assembleExpo54Release",
     "build:example:android-consumer:vanilla": "./gradlew assembleVanillaRelease"

diff --git a/apps/AppleApp/Brownfield Apple App.xcodeproj/project.pbxproj b/apps/AppleApp/Brownfield Apple App.xcodeproj/project.pbxproj
diff --git a/...ownfield Apple App.xcodeproj/xcshareddata/xcschemes/Brownfield Apple App Expo 56.xcscheme b/...ownfield Apple App.xcodeproj/xcshareddata/xcschemes/Brownfield Apple App Expo 56.xcscheme
@@ -0,0 +1,52 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<Scheme
+   LastUpgradeVersion = "2620"
+   version = "1.7">
+   <BuildAction
+      parallelizeBuildables = "YES"
+      buildImplicitDependencies = "YES"
+      buildArchitectures = "Automatic">
+   </BuildAction>
+   <TestAction
+      buildConfiguration = "Debug"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      shouldAutocreateTestPlan = "YES">
+   </TestAction>
+   <LaunchAction
+      buildConfiguration = "Debug Expo"
+      selectedDebuggerIdentifier = "Xcode.DebuggerFoundation.Debugger.LLDB"
+      selectedLauncherIdentifier = "Xcode.DebuggerFoundation.Launcher.LLDB"
+      launchStyle = "0"
+      useCustomWorkingDirectory = "NO"
+      ignoresPersistentStateOnLaunch = "NO"
+      debugDocumentVersioning = "YES"
+      debugServiceExtension = "internal"
+      allowLocationSimulation = "YES">
+      <BuildableProductRunnable
+         runnableDebuggingMode = "0">
+         <BuildableReference
+            BuildableIdentifier = "primary"
+            BlueprintIdentifier = "79B8BEB42FB8000000B94C6F"
+            BuildableName = "Brownfield Apple App (ExpoApp56).app"
+            BlueprintName = "Brownfield Apple App (ExpoApp56)"
+            ReferencedContainer = "container:Brownfield Apple App.xcodeproj">
+         </BuildableReference>
+      </BuildableProductRunnable>
+   </LaunchAction>
+   <ProfileAction
+      buildConfiguration = "Release"
+      shouldUseLaunchSchemeArgsEnv = "YES"
+      savedToolIdentifier = ""
+      useCustomWorkingDirectory = "NO"
+      debugDocumentVersioning = "YES">
+   </ProfileAction>
+   <AnalyzeAction
+      buildConfiguration = "Debug">
+   </AnalyzeAction>
+   <ArchiveAction
+      buildConfiguration = "Release"
+      revealArchiveInOrganizer = "YES">
+   </ArchiveAction>
+</Scheme>
diff --git a/apps/AppleApp/Brownfield Apple App.xcodeproj/xcshareddata/xcschemes/xcschememanagement.plist b/apps/AppleApp/Brownfield Apple App.xcodeproj/xcshareddata/xcschemes/xcschememanagement.plist
@@ -14,6 +14,11 @@
 			<key>orderHint</key>
 			<integer>1</integer>
 		</dict>
+		<key>Brownfield Apple App Expo 56.xcscheme</key>
+		<dict>
+			<key>orderHint</key>
+			<integer>0</integer>
+		</dict>
 		<key>Brownfield Apple App Vanilla.xcscheme</key>
 		<dict>
 			<key>orderHint</key>
@@ -37,6 +42,11 @@
 			<key>primary</key>
 			<true/>
 		</dict>
+		<key>79B8BEB42FB8000000B94C6F</key>
+		<dict>
+			<key>primary</key>
+			<true/>
+		</dict>
 	</dict>
 </dict>
 </plist>
diff --git a/apps/AppleApp/package.json b/apps/AppleApp/package.json
@@ -4,7 +4,8 @@
   "private": true,
   "type": "module",
   "scripts": {
-    "build:example:ios-consumer:expo": "yarn build:example:ios-consumer:expo55",
+    "build:example:ios-consumer:expo": "yarn build:example:ios-consumer:expo56",
+    "build:example:ios-consumer:expo56": "node prepareXCFrameworks.js --appName ExpoApp56 && yarn internal::build::common -scheme \"Brownfield Apple App Expo 56\" -configuration Release",
     "build:example:ios-consumer:expo54": "node prepareXCFrameworks.js --appName ExpoApp54 && yarn internal::build::common -scheme \"Brownfield Apple App Expo 54\" -configuration Release",
     "build:example:ios-consumer:expo55": "node prepareXCFrameworks.js --appName ExpoApp55 && yarn internal::build::common -scheme \"Brownfield Apple App Expo 55\" -configuration Release",
     "build:example:ios-consumer:vanilla": "node prepareXCFrameworks.js --appName RNApp && yarn internal::build::common -scheme \"Brownfield Apple App Vanilla\" -configuration \"Release Vanilla\"",

diff --git a/apps/ExpoApp55/eslint.config.js b/apps/ExpoApp55/eslint.config.js
@@ -7,6 +7,9 @@ module.exports = defineConfig([
   expoConfig,
   {
     ignores: ['dist/*'],
+    rules: {
+      'import/no-unresolved': ['error', { ignore: ['^@callstack/.+$'] }],
+    },
   },
   // Jest config is executed by Node (CommonJS); teach ESLint Node globals like __dirname.
   {

diff --git a/apps/ExpoApp56/.gitignore b/apps/ExpoApp56/.gitignore
@@ -0,0 +1,43 @@
+# Learn more https://docs.github.com/en/get-started/getting-started-with-git/ignoring-files
+
+# dependencies
+node_modules/
+
+# Expo
+.expo/
+dist/
+web-build/
+expo-env.d.ts
+
+# Native
+.kotlin/
+*.orig.*
+*.jks
+*.p8
+*.p12
+*.key
+*.mobileprovision
+
+# Metro
+.metro-health-check*
+
+# debug
+npm-debug.*
+yarn-debug.*
+yarn-error.*
+
+# macOS
+.DS_Store
+*.pem
+
+# local env files
+.env*.local
+
+# typescript
+*.tsbuildinfo
+
+example
+
+# generated native folders
+/ios
+/android
diff --git a/apps/ExpoApp56/BrownfieldStore.brownie.ts b/apps/ExpoApp56/BrownfieldStore.brownie.ts
@@ -0,0 +1,21 @@
+import type { BrownieStore } from '@callstack/brownie';
+
+export interface BrownfieldStore extends BrownieStore {
+  counter: number;
+  user: {
+    name: string;
+  };
+}
+
+export interface SettingsStore extends BrownieStore {
+  theme: 'light' | 'dark';
+  notificationsEnabled: boolean;
+  privacyMode: boolean;
+}
+
+declare module '@callstack/brownie' {
+  interface BrownieStores {
+    BrownfieldStore: BrownfieldStore;
+    SettingsStore: SettingsStore;
+  }
+}
diff --git a/apps/ExpoApp56/README.md b/apps/ExpoApp56/README.md
@@ -0,0 +1,56 @@
+# Welcome to your Expo app 👋
+
+This is an [Expo](https://expo.dev) project created with [`create-expo-app`](https://www.npmjs.com/package/create-expo-app).
+
+## Get started
+
+1. Install dependencies
+
+   ```bash
+   npm install
+   ```
+
+2. Start the app
+
+   ```bash
+   npx expo start
+   ```
+
+In the output, you'll find options to open the app in a
+
+- [development build](https://docs.expo.dev/develop/development-builds/introduction/)
+- [Android emulator](https://docs.expo.dev/workflow/android-studio-emulator/)
+- [iOS simulator](https://docs.expo.dev/workflow/ios-simulator/)
+- [Expo Go](https://expo.dev/go), a limited sandbox for trying out app development with Expo
+
+You can start developing by editing the files inside the **app** directory. This project uses [file-based routing](https://docs.expo.dev/router/introduction).
+
+## Get a fresh project
+
+When you're ready, run:
+
+```bash
+npm run reset-project
+```
+
+This command will move the starter code to the **app-example** directory and create a blank **app** directory where you can start developing.
+
+### Other setup steps
+
+- To set up ESLint for linting, run `npx expo lint`, or follow our guide on ["Using ESLint and Prettier"](https://docs.expo.dev/guides/using-eslint/)
+- If you'd like to set up unit testing, follow our guide on ["Unit Testing with Jest"](https://docs.expo.dev/develop/unit-testing/)
+- Learn more about the TypeScript setup in this template in our guide on ["Using TypeScript"](https://docs.expo.dev/guides/typescript/)
+
+## Learn more
+
+To learn more about developing your project with Expo, look at the following resources:
+
+- [Expo documentation](https://docs.expo.dev/): Learn fundamentals, or go into advanced topics with our [guides](https://docs.expo.dev/guides).
+- [Learn Expo tutorial](https://docs.expo.dev/tutorial/introduction/): Follow a step-by-step tutorial where you'll create a project that runs on Android, iOS, and the web.
+
+## Join the community
+
+Join our community of developers creating universal apps.
+
+- [Expo on GitHub](https://github.com/expo/expo): View our open source platform and contribute.
+- [Discord community](https://chat.expo.dev): Chat with Expo users and ask questions.
Original file line number	Diff line number	Diff line change
		@@ -0,0 +1,3 @@
		package com.callstack.brownfield.android.example

		typealias ReactNativeHostManager = com.callstack.rnbrownfield.demo.expoapp56.ReactNativeHostManager