patch 7.4.1879
Problem:    Channel test is flaky.
Solution:   Wait for close_cb to be invoked.
diff --git a/src/version.c b/src/version.c
index f450ba8..7373e70 100644
--- a/src/version.c
+++ b/src/version.c
@@ -754,6 +754,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1879,
+/**/
     1878,
 /**/
     1877,