diff --git a/Doc/changelog.docu b/Doc/changelog.docu
index f2993663..448bf42d 100644
--- a/Doc/changelog.docu
+++ b/Doc/changelog.docu
@@ -32,7 +32,7 @@
 
 
 
-<tr valign=top><td><b>5.1</b> (?/?/?)</td><td>
+<tr valign=top><td><b>5.1</b> (2015/17/12)</td><td>
 
 <b>Core</b>
 <ul>