diff --git a/VERSION b/VERSION
index 0d91a54c7d439e84e3dd17d3594f1b2b6737f430..1d0ba9ea182b0f7354f3daf12120744ec5e0c2f8 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.3.0
+0.4.0
diff --git a/templates/not_found.production.html.ep b/templates/not_found.production.html.ep
new file mode 100644
index 0000000000000000000000000000000000000000..a175bdf53db22700893838b5596eddfb5a0155d6
--- /dev/null
+++ b/templates/not_found.production.html.ep
@@ -0,0 +1 @@
+%= include 'index';