diff -ur mutt-1.5.21.orig/PATCHES mutt-1.5.21/PATCHES
--- mutt-1.5.21.orig/PATCHES
+++ mutt-1.5.21/PATCHES
@@ -1,0 +1,7 @@
+In addition, these upstream defects are fixed:
+#2064 wish: imap operations should be interruptable
+#3288 seg fault in mx_update_context
+#3392 Whitespace garbage in pager mode
+#3537 flea/muttbug tries to run C compiler with -v option to get the version number
+#3635 potential buffer overruns
+#3636 Possible buffer overflow in smime.c