diff --git a/package.json b/package.json
index 52073c3..f9f73d2 100644
--- a/package.json
+++ b/package.json
@@ -169,7 +169,7 @@
 	"main": "lib/main.js",
 	"author": "Korbinian Kapsner",
 	"license": "MPL 2.0",
-	"version": "0.3.8-Development",
+	"version": "0.4.0-Development",
 	
 	"engines": {
 		"firefox": ">=50.0",
diff --git a/releaseNotes.txt b/releaseNotes.txt
index 9943708..04152b9 100644
--- a/releaseNotes.txt
+++ b/releaseNotes.txt
@@ -1,3 +1,13 @@
+Version 0.4.0:
+	changes:
+		- 
+	
+	new features:
+		- 
+	
+	fixes:
+		- 
+
 Version 0.3.8:
 	changes:
 		-