diff --git a/.github/ISSUE_TEMPLATE/bug_report.yml b/.github/ISSUE_TEMPLATE/bug_report.yml
index 3041f2a..6fca011 100644
--- a/.github/ISSUE_TEMPLATE/bug_report.yml
+++ b/.github/ISSUE_TEMPLATE/bug_report.yml
@@ -69,7 +69,7 @@ body:
     attributes:
       label: App Version
       description: Which version of BitSleuth Wallet are you using?
-      placeholder: e.g., 1.2.1
+      placeholder: e.g., 1.2.2
     validations:
       required: true
 
diff --git a/CLAUDE.md b/CLAUDE.md
index 9e580c4..f4be03b 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -208,6 +208,21 @@ node scripts/test-biometric.js
 | Constants | UPPER_SNAKE_CASE | `MAX_FEE_RATE` |
 | Types/Interfaces | PascalCase | `WalletState` |
 
+### Version Update Checklist (MUST FOLLOW)
+
+When asked to bump/update the app version, update **ALL** of the following:
+
+1. `app.json` (`expo.version`) — **drives all in-app version displays** (splash screen, About screen, Settings, Crashlytics) via `constants/app-version.ts`
+2. `package.json` (`version`)
+3. `android/app/build.gradle` (`versionName`, and bump `versionCode`)
+4. `ios/BitSleuthWallet/Info.plist` (`CFBundleShortVersionString`)
+5. `CHANGELOG.md` — add the new release entry
+6. `README.md` — version badge near the top
+7. `app/about.tsx` — add a "What's New in X.Y.Z?" `DropdownSection` at the top with `defaultExpanded={true}` (remove `defaultExpanded` from the previous version's section)
+8. `.github/ISSUE_TEMPLATE/bug_report.yml` — App Version placeholder example
+
+**NEVER hardcode the version number in components or services.** Always import `APP_VERSION` from `@/constants/app-version`, which reads it from `app.json` via `expo-constants`.
+
 ### Documentation Organization
 
 **All markdown files MUST go in the `docs/` folder**, with these exceptions:
diff --git a/README.md b/README.md
index 9ae370b..a12f0d8 100644
--- a/README.md
+++ b/README.md
@@ -8,7 +8,7 @@
 
 **A professional-grade, non-custodial Bitcoin wallet for iOS and Android**
 
-[![Version](https://img.shields.io/badge/version-1.2.1-blue.svg)](https://github.com/BitSleuthAI/Wallet)
+[![Version](https://img.shields.io/badge/version-1.2.2-blue.svg)](https://github.com/BitSleuthAI/Wallet)
 [![Platform](https://img.shields.io/badge/platform-iOS%20%7C%20Android-lightgrey.svg)](https://github.com/BitSleuthAI/Wallet)
 [![License](https://img.shields.io/badge/license-AGPL--3.0-blue.svg)](LICENSE)
 [![React Native](https://img.shields.io/badge/React%20Native-0.81-61dafb.svg)](https://reactnative.dev/)
diff --git a/app/(tabs)/settings.tsx b/app/(tabs)/settings.tsx
index bc871e5..23c4011 100644
--- a/app/(tabs)/settings.tsx
+++ b/app/(tabs)/settings.tsx
@@ -6,6 +6,7 @@ import { useAutoLock } from '@/hooks/auto-lock-store';
 import { useTabAnimation } from '@/hooks/use-tab-animation';
 import { useWallet } from '@/hooks/wallet-store';
 import { HapticService } from '@/services/haptic-service';
+import { APP_VERSION } from '@/constants/app-version';
 
 import type { FiatCurrency } from '@/types/wallet';
 import { getWalletTypeDisplayName } from '@/types/wallet';
@@ -377,7 +378,7 @@ function SettingsScreenContent() {
             <SettingItem
               icon={Info}
               title="About BitSleuth Wallet"
-              subtitle="Version 1.2.1"
+              subtitle={`Version ${APP_VERSION}`}
               onPress={() => router.push('/about')}
             />
 
diff --git a/app/about.tsx b/app/about.tsx
index fc7535b..6f854b6 100644
--- a/app/about.tsx
+++ b/app/about.tsx
@@ -15,6 +15,7 @@ import { useWallet } from '@/hooks/wallet-store';
 import { GradientBackground } from '@/components/GradientBackground';
 import { AndroidSafeContainer } from '@/components/AndroidSafeContainer';
 import crashlyticsService from '@/services/crashlytics-service';
+import { APP_VERSION } from '@/constants/app-version';
 
 interface DropdownSectionProps {
   title: string;
@@ -103,11 +104,20 @@ export default function AboutScreen() {
             About BitSleuth Wallet
           </Text>
           <Text style={[styles.version, { color: theme.colors.textSecondary }]}>
-            Version 1.2.1
+            Version {APP_VERSION}
           </Text>
         </View>
 
-        <DropdownSection title="What's New in 1.2.1?" defaultExpanded={true}>
+        <DropdownSection title="What's New in 1.2.2?" defaultExpanded={true}>
+          <BulletPoint text="Open Source Release: BitSleuth Wallet is now open source under the AGPL-3.0 license, with CI/CD, documentation, and community contribution support." />
+          <BulletPoint text="Satoshi API Fee Fallback: Fee recommendations stay available even when the primary Esplora fee endpoint fails." />
+          <BulletPoint text="Firebase Performance Monitoring: App performance tracking alongside crash reporting (no analytics)." />
+          <BulletPoint text="UI Polish: Premium animations, haptic feedback, and micro-interactions across wallet flows." />
+          <BulletPoint text="Build Fixes: Resolved iOS (Xcode 26) build errors and Android EAS build failures." />
+          <BulletPoint text="Performance: Faster Receive tab QR rendering and wallet import, plus stricter Bitcoin address checksum validation." />
+        </DropdownSection>
+
+        <DropdownSection title="What's New in 1.2.1?">
           <BulletPoint text="Device Optimization: App now optimized exclusively for mobile phone screens (iPhone and Android phones only)." />
         </DropdownSection>
 
diff --git a/components/SplashScreen.tsx b/components/SplashScreen.tsx
index cfa2273..72da207 100644
--- a/components/SplashScreen.tsx
+++ b/components/SplashScreen.tsx
@@ -9,6 +9,7 @@ import {
   View,
 } from 'react-native';
 import Svg, { Circle, Path } from 'react-native-svg';
+import { APP_VERSION } from '@/constants/app-version';
 
 interface SplashScreenProps {
   onAnimationComplete?: () => void;
@@ -122,7 +123,7 @@ export default function SplashScreen({ onAnimationComplete }: SplashScreenProps)
 
           {/* Version and description */}
           <Animated.View style={[styles.versionContainer, { opacity: textOpacity }]}>
-            <Text style={styles.versionText}>v1.2.1</Text>
+            <Text style={styles.versionText}>{`v${APP_VERSION}`}</Text>
             <Text style={styles.walletText}>Bitcoin Wallet</Text>
           </Animated.View>
         </View>
diff --git a/constants/app-version.ts b/constants/app-version.ts
new file mode 100644
index 0000000..01b39dc
--- /dev/null
+++ b/constants/app-version.ts
@@ -0,0 +1,6 @@
+import Constants from 'expo-constants';
+
+// Single source of truth for the displayed app version, read from app.json.
+// Bump expo.version in app.json and every consumer (splash screen, About,
+// Settings, Crashlytics) updates automatically.
+export const APP_VERSION: string = Constants.expoConfig?.version ?? '0.0.0';
diff --git a/services/crashlytics-service.ts b/services/crashlytics-service.ts
index ecd78ec..946e546 100644
--- a/services/crashlytics-service.ts
+++ b/services/crashlytics-service.ts
@@ -1,4 +1,5 @@
 import { Platform } from 'react-native';
+import { APP_VERSION } from '@/constants/app-version';
 
 // Firebase Crashlytics with fallback for web/missing native module
 let crashlytics: any = null;
@@ -253,7 +254,7 @@ if (isInitialized && crashlytics && !isExpoGo) {
     crashlytics.setUserId('anonymous');
     crashlytics.setAttributes({
       platform: Platform.OS,
-      appVersion: '1.2.1',
+      appVersion: APP_VERSION,
       buildType: __DEV__ ? 'debug' : 'release',
       environment: 'development-build',
     });