diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8373aed..f99e75c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -20,12 +20,12 @@ endif()
 
 # Version
 set(VERSION_MAJOR 0)
-set(VERSION_MINOR 8)
+set(VERSION_MINOR 9)
 set(VERSION_PATCH 0)
-set(VERSION_CODE 12)
+set(VERSION_CODE 13)
 set(VERSION_EXTRA "" CACHE STRING "Stuff to append to version string")
 
-set(DEVELOPMENT_BUILD FALSE)
+set(DEVELOPMENT_BUILD TRUE)
 if(DEVELOPMENT_BUILD)
 	set(VERSION_EXTRA "${VERSION_EXTRA}-dev")
 endif()
diff --git a/NEWS b/NEWS
index 8fa31c1..fcdfc24 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,10 @@
+Version 0.9.0-dev
+~~~~~~~~~~~~~~~~~
+Released: 1970-01-01
+
+Notes:
+ * under development
+
 Version 0.8.0
 ~~~~~~~~~~~~~
 Released: 2021-05-28
diff --git a/misc/im.kaidan.kaidan.appdata.xml b/misc/im.kaidan.kaidan.appdata.xml
index bd242fc..990d09c 100644
--- a/misc/im.kaidan.kaidan.appdata.xml
+++ b/misc/im.kaidan.kaidan.appdata.xml
@@ -165,6 +165,11 @@
     </screenshot>
   </screenshots>
   <releases>
+    <release type="stable" version="0.9.0-dev">
+      <description>
+        <p>under development</p>
+      </description>
+    </release>
     <release type="stable" version="0.8.0" date="2021-05-28T00:00:00Z">
       <description>
         <p>This release adds the following features:</p>