updated changelog

diff --git a/doc/changelog.txt b/doc/changelog.txt
index db95e80..7a8bf6a 100644
--- a/doc/changelog.txt
+++ b/doc/changelog.txt
@@ -1,3 +1,9 @@
+2014-12-18  V3.1.9
+	New Feature
+	None
+	Bugs Fixed
+	Updated version string.
+
 2014-12-18  V3.1.8
 	New Feature
 	None