patch 7.4.1620
Problem:    Emoji characters are not considered as a kind of word character.
Solution:   Give emoji characters a word class number. (Yasuhiro Matsumoto)
diff --git a/src/version.c b/src/version.c
index 9136583..95067e9 100644
--- a/src/version.c
+++ b/src/version.c
@@ -749,6 +749,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1620,
+/**/
     1619,
 /**/
     1618,