diff --git a/ChangeLog b/ChangeLog
index 3a112d1197..6f70d6c341 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,4 +1,11 @@
 
+Release 0.10.20 - 2012/04/27
+
+* Fixed Config#to_s
+* out_exec_filter: supports 'out_format json' option
+* out_exec_filter: supports 'in_format json' option
+
+
 Release 0.10.19 - 2012/04/17
 
 * Fixed in_syslog
diff --git a/VERSION b/VERSION
index 86c1984d6b..566871cb0a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-0.10.19
+0.10.20
diff --git a/lib/fluent/version.rb b/lib/fluent/version.rb
index aceb881973..548653bacd 100644
--- a/lib/fluent/version.rb
+++ b/lib/fluent/version.rb
@@ -1,5 +1,5 @@
 module Fluent
 
-VERSION = '0.10.19'
+VERSION = '0.10.20'
 
 end