diff --git a/CHANGELOG b/CHANGELOG
index 4b63c14fb..24153ad7f 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,3 +1,5 @@
+* 0.9.9
+
 * 0.9.8 (2010-06-28)
 
 Backward incompatibilities:
diff --git a/lib/Twig/Environment.php b/lib/Twig/Environment.php
index f3abc127d..5d58245d1 100644
--- a/lib/Twig/Environment.php
+++ b/lib/Twig/Environment.php
@@ -11,7 +11,7 @@
 
 class Twig_Environment
 {
-    const VERSION = '0.9.8';
+    const VERSION = '0.9.9-DEV';
 
     protected $charset;
     protected $loader;