diff --git a/.gitignore b/.gitignore
--- a/.gitignore
+++ b/.gitignore
@@ -16,3 +16,5 @@
 *.iml
 
 .stack-work
+/result
+*~
diff --git a/b9.cabal b/b9.cabal
--- a/b9.cabal
+++ b/b9.cabal
@@ -1,5 +1,5 @@
 name:                b9
-version:             0.5.49
+version:             0.5.50
 
 synopsis:            A tool and library for building virtual machine images.