diff --git a/opacclient/opacapp/build.gradle b/opacclient/opacapp/build.gradle
index 81485f867..619c31e3c 100644
--- a/opacclient/opacapp/build.gradle
+++ b/opacclient/opacapp/build.gradle
@@ -9,8 +9,8 @@ android {
         applicationId "de.geeksfactory.opacclient"
         minSdkVersion 15
         targetSdkVersion 33
-        versionCode 245
-        versionName "6.5.0"
+        versionCode 246
+        versionName "6.28.318"
 
         multiDexEnabled true
         vectorDrawables.useSupportLibrary = true
diff --git a/opacclient/opacapp/src/main/java/de/geeksfactory/opacclient/frontend/AboutFragment.java b/opacclient/opacapp/src/main/java/de/geeksfactory/opacclient/frontend/AboutFragment.java
index 42aabaded..c4acf75e6 100644
--- a/opacclient/opacapp/src/main/java/de/geeksfactory/opacclient/frontend/AboutFragment.java
+++ b/opacclient/opacapp/src/main/java/de/geeksfactory/opacclient/frontend/AboutFragment.java
@@ -51,23 +51,12 @@ public boolean onPreferenceClick(Preference preference) {
                     }
                 });
 
-        findPreference("support").setOnPreferenceClickListener(
-                new Preference.OnPreferenceClickListener() {
-                    @Override
-                    public boolean onPreferenceClick(Preference preference) {
-                        Intent i = new Intent(Intent.ACTION_VIEW);
-                        i.setData(Uri.parse(getString(R.string.support_url)));
-                        startActivity(i);
-                        return false;
-                    }
-                });
-
         findPreference("source").setOnPreferenceClickListener(
                 new Preference.OnPreferenceClickListener() {
                     @Override
                     public boolean onPreferenceClick(Preference preference) {
                         Intent i = new Intent(Intent.ACTION_VIEW, Uri
-                                .parse("http://github.com/raphaelm/opacclient"));
+                                .parse("http://github.com/opacapp/opacclient"));
                         startActivity(i);
                         return false;
                     }
diff --git a/opacclient/opacapp/src/main/res/raw-de/changelog.html b/opacclient/opacapp/src/main/res/raw-de/changelog.html
index e9cce3d45..c311efe93 100644
--- a/opacclient/opacapp/src/main/res/raw-de/changelog.html
+++ b/opacclient/opacapp/src/main/res/raw-de/changelog.html
@@ -1,3 +1,6 @@
+6.28.318<br>
+Abkündigung der App<br>
+<br>
 6.4.14<br>
 Kompatibilitätsprobleme in Bremen behoben<br>
 <br>
diff --git a/opacclient/opacapp/src/main/res/raw/changelog.html b/opacclient/opacapp/src/main/res/raw/changelog.html
index 5ac0ba43f..a63bff3db 100644
--- a/opacclient/opacapp/src/main/res/raw/changelog.html
+++ b/opacclient/opacapp/src/main/res/raw/changelog.html
@@ -1,3 +1,6 @@
+6.28.318<br>
+Deprecation of the app<br>
+<br>
 6.4.14<br>
 Fixed compatibility issues in Bremen<br>
 <br>
diff --git a/opacclient/opacapp/src/main/res/raw/licenses.html b/opacclient/opacapp/src/main/res/raw/licenses.html
index cab318e91..a28836de3 100644
--- a/opacclient/opacapp/src/main/res/raw/licenses.html
+++ b/opacclient/opacapp/src/main/res/raw/licenses.html
@@ -1,6 +1,6 @@
 <strong>This App</strong><br/>
 <br/>
-(c) 2012-2020 Raphael Michel and contributors<br/>
+(c) 2012-2024 Raphael Michel and contributors<br/>
 (c) 2021 rami.io GmbH and contributors<br/>
 Johan von Forstner, Simon Legner, Rüdiger Wurth and others<br/>
 App icon (c) 2017 by Andrew Alex<br/>
diff --git a/opacclient/opacapp/src/main/res/values-de/strings.xml b/opacclient/opacapp/src/main/res/values-de/strings.xml
index 4001781a6..193a17c47 100644
--- a/opacclient/opacapp/src/main/res/values-de/strings.xml
+++ b/opacclient/opacapp/src/main/res/values-de/strings.xml
@@ -235,7 +235,7 @@
     <string name="meta_run_check">Synchronisierungsdienst ausführen</string>
     <string name="version">Version</string>
     <string name="website">Website</string>
-    <string name="website_url">www.opacapp.de</string>
+    <string name="website_url">www.opac.app</string>
     <string name="developer">Entwickler</string>
     <string name="feedback">Feedback</string>
     <string name="support">Support</string>
@@ -289,7 +289,7 @@
     <string name="notification_repeat">Benachrichtigungen wiederholen</string>
     <string name="update_info_title">Happy Birthday Opac App!</string>
     <string name="update_info_text">Diesen Mai wurde die Opac App stolze fünf Jahre alt. Wir feiern den Geburtstag mit einem modernisierten Logo und möchten uns für all das Feedback über die Jahre bedanken.</string>
-    <string name="update_info_text_second">Wenn du uns helfen willst, die App weiter betreiben zu können, sprich deine Bibliothek an: Wenn sie die Plus-Edition unserer App kauft, ermöglicht sie uns damit die langfristige Weiterentwicklung und schaltet nützliche Funktionen frei. Mehr Details gibt es auf unserer Website www.opacapp.de.</string>
+    <string name="update_info_text_second">Wenn du uns helfen willst, die App weiter betreiben zu können, sprich deine Bibliothek an: Wenn sie die Plus-Edition unserer App kauft, ermöglicht sie uns damit die langfristige Weiterentwicklung und schaltet nützliche Funktionen frei. Mehr Details gibt es auf unserer Website www.opac.app.</string>
     <string name="accountdata_export_header">Kontodaten von %1$s am %2$s</string>
     <string name="accountdata_title">Titel</string>
     <string name="accountdata_author">Autor</string>
diff --git a/opacclient/opacapp/src/main/res/xml/about.xml b/opacclient/opacapp/src/main/res/xml/about.xml
index 67738c44f..4e8148641 100644
--- a/opacclient/opacapp/src/main/res/xml/about.xml
+++ b/opacclient/opacapp/src/main/res/xml/about.xml
@@ -14,12 +14,6 @@
             android:summary="@string/website_url"
             android:title="@string/website"/>
     </PreferenceCategory>
-    <PreferenceCategory android:title="@string/support">
-        <Preference
-            android:key="support"
-			android:summary="@string/support_url"
-            android:title="@string/support"/>
-    </PreferenceCategory>
     <PreferenceCategory android:title="@string/other">
         <Preference
             android:key="thanks"