diff --git a/NEWS.txt b/NEWS.txt
index 46a203c442b..c97f7e1b22a 100644
--- a/NEWS.txt
+++ b/NEWS.txt
@@ -1,3 +1,5 @@
+Version 7.18 - not yet released
+
 Version 7.17 - 2021/09/04
 * map display
   - fix airspace display bug
diff --git a/VERSION.txt b/VERSION.txt
index e6a4f6a472f..8a59805079c 100644
--- a/VERSION.txt
+++ b/VERSION.txt
@@ -1 +1 @@
-7.17
+7.18
diff --git a/android/AndroidManifest.xml b/android/AndroidManifest.xml
index 7fe7a79d0c0..39406284775 100644
--- a/android/AndroidManifest.xml
+++ b/android/AndroidManifest.xml
@@ -2,8 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="org.xcsoar"
           android:installLocation="auto"
-          android:versionCode="138"
-          android:versionName="7.17">
+          android:versionCode="139"
+          android:versionName="7.18">
   <application
       android:requestLegacyExternalStorage="true"
       android:icon="@drawable/icon"
diff --git a/android/testing/AndroidManifest.xml b/android/testing/AndroidManifest.xml
index 98dd9e21097..f24dd7ea78f 100644
--- a/android/testing/AndroidManifest.xml
+++ b/android/testing/AndroidManifest.xml
@@ -2,8 +2,8 @@
 <manifest xmlns:android="http://schemas.android.com/apk/res/android"
           package="org.xcsoar.testing"
           android:installLocation="auto"
-          android:versionCode="143"
-          android:versionName="7.17">
+          android:versionCode="144"
+          android:versionName="7.18">
   <application
       android:requestLegacyExternalStorage="true"
       android:icon="@drawable/icon"
diff --git a/debian/changelog b/debian/changelog
index 1aebc17d2be..414138d2b18 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+xcsoar (7.18) unstable; urgency=medium
+
+  * new release
+
+ --
+
 xcsoar (7.17) unstable; urgency=medium
 
   * new release