patch 7.4.1666
Problem:    When reading JSON from a channel all readahead is used.
Solution:   Use the fill function to reduce overhead.
diff --git a/src/version.c b/src/version.c
index e183717..5a55707 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1666,
+/**/
     1665,
 /**/
     1664,