diff --git a/app/build.gradle b/app/build.gradle
index 84ad9c9..fe8773b 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -51,14 +51,14 @@ def twaManifest = [
 ]
 
 android {
-    compileSdkVersion 35
+    compileSdkVersion 36
     namespace "org.blastmud.game"
     defaultConfig {
         applicationId "org.blastmud.game"
-        minSdkVersion 19
-        targetSdkVersion 35
-        versionCode 16
-        versionName "15"
+        minSdkVersion 23
+        targetSdkVersion 36
+        versionCode 20
+        versionName "20"
 
         // The name for the application
         resValue "string", "appName", twaManifest.name
@@ -71,6 +71,8 @@ android {
         resValue "string", "launchUrl", launchUrl
 
         
+
+        
             // The URL the Web Manifest for the Progressive Web App that the TWA points to. This
             // is used by Chrome OS and Meta Quest to open the Web version of the PWA instead of
             // the TWA, as it will probably give a better user experience for non-mobile devices.
@@ -145,6 +147,8 @@ android {
 
         resValue "bool", "enableSiteSettingsShortcut", twaManifest.enableSiteSettingsShortcut
         resValue "string", "orientation", twaManifest.orientation
+
+        
     }
     buildTypes {
         release {
@@ -204,6 +208,6 @@ repositories {
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     
-        implementation 'com.google.androidbrowserhelper:androidbrowserhelper:2.5.0'
+        implementation 'com.google.androidbrowserhelper:androidbrowserhelper:2.6.2'
     
 }
diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 04f79c5..e25a271 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -62,10 +62,17 @@
         
 
         
-            <activity android:name="com.google.androidbrowserhelper.trusted.ManageDataLauncherActivity">
-            <meta-data
-                android:name="android.support.customtabs.trusted.MANAGE_SPACE_URL"
-                android:value="@string/launchUrl" />
+            <activity android:name="com.google.androidbrowserhelper.trusted.ManageDataLauncherActivity"
+                android:exported="false"
+                android:enabled="true"
+                android:excludeFromRecents="true">
+                <meta-data
+                    android:name="android.support.customtabs.trusted.MANAGE_SPACE_URL"
+                    android:value="@string/launchUrl" />
+                <intent-filter>
+                    <action android:name="android.intent.action.APPLICATION_PREFERENCES" />
+                    <category android:name="android.intent.category.DEFAULT" />
+                </intent-filter>
             </activity>
         
 
@@ -80,6 +87,8 @@
                 android:name="android.support.customtabs.trusted.STATUS_BAR_COLOR"
                 android:resource="@color/colorPrimary" />
 
+            
+
             <meta-data
                 android:name="android.support.customtabs.trusted.STATUS_BAR_COLOR_DARK"
                 android:resource="@color/colorPrimaryDark" />
@@ -128,6 +137,8 @@
 
             
 
+            
+
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
@@ -138,10 +149,14 @@
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE"/>
                 <data android:scheme="https"
-                    android:host="@string/hostName"/>
+                    android:host="@string/hostName"
+                
+                />
             </intent-filter>
 
             
+
+            
         </activity>
 
         <activity android:name="com.google.androidbrowserhelper.trusted.FocusActivity" />
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index a5cdeea..f7a3c2b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -17,6 +17,12 @@
 <resources>
   
 
+  <!--
+    The "fullscreen" and "fullscreen-sticky" TWA manifest values correspond to "immersive" and "sticky-immersive"
+    AndroidManifest values.
+  -->
+  
+
   <!--
     This variable below expresses the relationship between the app and the site,
     as documented in the TWA documentation at
diff --git a/build.gradle b/build.gradle
index cfe68cb..a3d57ce 100644
--- a/build.gradle
+++ b/build.gradle
@@ -23,7 +23,7 @@ buildscript {
         jcenter()
     }
     dependencies {
-        classpath 'com.android.tools.build:gradle:8.5.0'
+        classpath 'com.android.tools.build:gradle:8.9.1'
 
         // NOTE: Do not place your application dependencies here; they belong
         // in the individual module build.gradle files
diff --git a/gradle/wrapper/gradle-wrapper.properties b/gradle/wrapper/gradle-wrapper.properties
index c584056..719e736 100644
--- a/gradle/wrapper/gradle-wrapper.properties
+++ b/gradle/wrapper/gradle-wrapper.properties
@@ -2,6 +2,6 @@ distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.8-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.11.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
diff --git a/manifest-checksum.txt b/manifest-checksum.txt
index 5d47329..ad3f7c7 100644
--- a/manifest-checksum.txt
+++ b/manifest-checksum.txt
@@ -1 +1 @@
-296fb7d46fa04c54a902abeb542c47a244d2f860
\ No newline at end of file
+1b4cde22094066256ef46b78ab04c2a1e70d99bf
\ No newline at end of file
diff --git a/twa-manifest.json b/twa-manifest.json
index 22f05cc..6038348 100644
--- a/twa-manifest.json
+++ b/twa-manifest.json
@@ -20,8 +20,8 @@
     "path": "../../../android.keystore",
     "alias": "upload"
   },
-  "appVersionName": "15",
-  "appVersionCode": 16,
+  "appVersionName": "20",
+  "appVersionCode": 20,
   "shortcuts": [],
   "generatorApp": "bubblewrap-cli",
   "webManifestUrl": "https://www.blastmud.org/manifest.json",
@@ -34,10 +34,11 @@
   "isChromeOSOnly": false,
   "isMetaQuest": false,
   "fullScopeUrl": "https://www.blastmud.org/",
-  "minSdkVersion": 19,
+  "minSdkVersion": 23,
   "orientation": "user",
   "fingerprints": [],
   "additionalTrustedOrigins": [],
   "retainedBundles": [],
-  "appVersion": "15"
+  "displayOverride": [],
+  "appVersion": "20"
 }
\ No newline at end of file