diff --git a/com.rawtherapee.RawTherapee.appdata.xml b/com.rawtherapee.RawTherapee.appdata.xml
index 0dace6772..9b5f6d1d6 100644
--- a/com.rawtherapee.RawTherapee.appdata.xml
+++ b/com.rawtherapee.RawTherapee.appdata.xml
@@ -35,6 +35,7 @@
     <url type="translate">https://discuss.pixls.us/t/localization-how-to-translate-rawtherapee-and-rawpedia/2594</url>
     <launchable type="desktop-id">rawtherapee.desktop</launchable>
     <releases>
+        <release version="5.6-rc1" date="2019-04-10" type="development"></release>
         <release version="5.5" date="2018-12-17" type="stable"></release>
     </releases>
     <provides>