updated for version 7.4.615
Problem:    Vim hangs when freeing a lot of objects.
Solution:   Do not go back to the start of the list every time.  (Yasuhiro
            Matsumoto and Ariya Mizutani)
diff --git a/src/version.c b/src/version.c
index efee40d..f278cda 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    615,
+/**/
     614,
 /**/
     613,