updated for version 7.4b.006
Problem:    Using \{n,m} in an autocommand pattern no longer works.
            Specifically, mutt temp files are not recognized. (Gary Johnson)
Solution:   Make \\\{n,m\} work.
diff --git a/src/version.c b/src/version.c
index ec2c2c0..77c3e8d 100644
--- a/src/version.c
+++ b/src/version.c
@@ -728,6 +728,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    6,
+/**/
     5,
 /**/
     4,