diff --git a/CHANGES b/CHANGES
index d702d85b3f..caf5e86460 100644
--- a/CHANGES
+++ b/CHANGES
@@ -1,4 +1,19 @@
 
+2.4-620 | 2016-06-15 09:05:37 -0700
+
+  * Fixing memory leak in changed table expiration code. (Robin
+    Sommer)
+
+  * Fixing test portability. (Robin Sommer)
+
+  * Move the HTTP "filename" field (which was never filled out
+    anyways) to "orig_filenames" and "resp_filenames".  (Seth Hall)
+
+  * Add a round trip time (rtt) field to dns.log. (Seth Hall)
+
+  * Add ACE archive files to the identified file types. Addresses
+    BIT-1609. (Stephen Hosom)
+
 2.4-613 | 2016-06-14 18:10:37 -0700
 
   * Preventing the event processing from looping endlessly when an
diff --git a/VERSION b/VERSION
index ac2ea9d11f..64d51a79c4 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-2.4-613
+2.4-620
diff --git a/src/Val.cc b/src/Val.cc
index 7341aada03..ca8551f7a7 100644
--- a/src/Val.cc
+++ b/src/Val.cc
@@ -2274,8 +2274,10 @@ double TableVal::GetExpireTime()
 		return -1;
 
 	Val* timeout = expire_time->Eval(0);
+	double interval = (timeout ? timeout->AsInterval() : -1);
+	Unref(timeout);
 
-	if ( timeout && (timeout->AsInterval() >= 0) )
+	if ( interval >= 0 )
 		return timeout->AsInterval();
 
 	expire_time = 0;