updated for version 7.4.493
Problem:    A TextChanged autocommand is triggered when saving a file.
            (William Gardner)
Solution:   Update last_changedtick after calling unchanged(). (Christian
            Brabandt)
diff --git a/src/version.c b/src/version.c
index 6953814..378818e 100644
--- a/src/version.c
+++ b/src/version.c
@@ -742,6 +742,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    493,
+/**/
     492,
 /**/
     491,