diff --git a/oeffi/AndroidManifest.xml b/oeffi/AndroidManifest.xml
index ac194ca..5196ee1 100644
--- a/oeffi/AndroidManifest.xml
+++ b/oeffi/AndroidManifest.xml
@@ -20,8 +20,8 @@
     xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     package="de.schildbach.oeffi"
-    android:versionCode="120121"
-    android:versionName="12.1.21">
+    android:versionCode="130000"
+    android:versionName="13.0">
 
     <uses-sdk
         android:minSdkVersion="24"
diff --git a/oeffi/CHANGES b/oeffi/CHANGES
index 79837b2..8c6291f 100644
--- a/oeffi/CHANGES
+++ b/oeffi/CHANGES
@@ -1,3 +1,10 @@
+v13.0
+
+* Running the app now requires Android 7.0 (Nougat) or higher.
+* Building the app now requires OpenJDK 17.
+* Remove `google` flavor.
+* Git: rename `master` to `main` branch.
+
 v12.1.18-v12.1.21
 
 * Remove region: Belgium (SNCB)