patch 7.4.1668
Problem:    channel_get_all() does multiple allocations.
Solution:   Compute the size and allocate once.
diff --git a/src/version.c b/src/version.c
index ae5d4b0..9ba1375 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1668,
+/**/
     1667,
 /**/
     1666,