diff --git a/android/app/build.gradle b/android/app/build.gradle
index 4c108ce..94370ae 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -7,8 +7,8 @@ android {
         applicationId "com.tomfong.simpleqr"
         minSdkVersion rootProject.ext.minSdkVersion
         targetSdkVersion rootProject.ext.targetSdkVersion
-        versionCode 3030000
-        versionName "3.3.0"
+        versionCode 4000000
+        versionName "4.0.0"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         aaptOptions {
              // Files and dirs to omit from the packaged assets dir, modified to accommodate modern web apps.
diff --git a/ios/App/App.xcodeproj/project.pbxproj b/ios/App/App.xcodeproj/project.pbxproj
index 3b3b675..65c046e 100644
--- a/ios/App/App.xcodeproj/project.pbxproj
+++ b/ios/App/App.xcodeproj/project.pbxproj
@@ -399,7 +399,7 @@
 				INFOPLIST_FILE = App/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				MARKETING_VERSION = 3.3.0;
+				MARKETING_VERSION = 4.0.0;
 				OTHER_SWIFT_FLAGS = "$(inherited) \"-D\" \"COCOAPODS\" \"-DDEBUG\"";
 				PRODUCT_BUNDLE_IDENTIFIER = com.tomfong.simpleqr;
 				PRODUCT_NAME = "$(TARGET_NAME)";
@@ -422,7 +422,7 @@
 				INFOPLIST_FILE = App/Info.plist;
 				IPHONEOS_DEPLOYMENT_TARGET = 13.0;
 				LD_RUNPATH_SEARCH_PATHS = "$(inherited) @executable_path/Frameworks";
-				MARKETING_VERSION = 3.3.0;
+				MARKETING_VERSION = 4.0.0;
 				PRODUCT_BUNDLE_IDENTIFIER = com.tomfong.simpleqr;
 				PRODUCT_NAME = "$(TARGET_NAME)";
 				PROVISIONING_PROFILE_SPECIFIER = "Simple QR";
diff --git a/package-lock.json b/package-lock.json
index 33107f3..e7d6b38 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "simple-qr",
-  "version": "3.3.0",
+  "version": "4.0.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "simple-qr",
-      "version": "3.3.0",
+      "version": "4.0.0",
       "dependencies": {
         "@angular/animations": "^16.1.3",
         "@angular/cdk": "^16.1.3",
diff --git a/package.json b/package.json
index 734094b..4bfa2c5 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "simple-qr",
-  "version": "3.3.0",
+  "version": "4.0.0",
   "author": "Tom Fong",
   "scripts": {
     "ng": "ng",
diff --git a/src/app/services/env.service.ts b/src/app/services/env.service.ts
index 6cfdf7a..85ff970 100644
--- a/src/app/services/env.service.ts
+++ b/src/app/services/env.service.ts
@@ -31,7 +31,7 @@ export declare type ResultPageButtonsType = 'detailed' | 'icon-only';
 })
 export class EnvService {
 
-  public appVersionNumber: string = '3.3.0';
+  public appVersionNumber: string = '4.0.0';
 
   public startPage: TabPageType = "/tabs/scan";
   public historyPageStartSegment: HistoryPageSegmentType = 'history';
@@ -125,10 +125,10 @@ export class EnvService {
   public readonly KEY_SHOW_OPEN_FOOD_FACTS_BUTTON = "showOpenFoodFactsButton";
   public readonly KEY_AUTO_EXIT_MIN = "autoExitAppMin";
 
-  public readonly KEY_ANDROID_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v30300";
-  public readonly KEY_IOS_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v30300";
-  public readonly KEY_ANDROID_PREV_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v30200";
-  public readonly KEY_IOS_PREV_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v30200";
+  public readonly KEY_ANDROID_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v40000";
+  public readonly KEY_IOS_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v40000";
+  public readonly KEY_ANDROID_PREV_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v30300";
+  public readonly KEY_IOS_PREV_NOT_SHOW_UPDATE_NOTES = "not-show-update-notes-v30300";
 
   public readonly APP_FOLDER_NAME: string = 'SimpleQR';