Update ChangeLog for 3.4.1.
diff --git a/ChangeLog b/ChangeLog
index def7685..0efc742 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -6,7 +6,7 @@
     http://www.canonware.com/cgi-bin/gitweb.cgi?p=jemalloc.git
     git://canonware.com/jemalloc.git
 
-* 3.4.1 (XXX)
+* 3.4.1 (October 20, 2013)
 
   Bug fixes:
   - Fix a race in the "arenas.extend" mallctl that could cause memory corruption