diff -r cf01d04e94d7 -r c8bf6077a87d .hgtags
--- a/.hgtags	Mon Jul 02 16:26:11 2018 +0200
+++ b/.hgtags	Mon Jul 02 16:43:06 2018 +0200
@@ -35,3 +35,4 @@
 7aa3c52f27aade2cada22206cf0477b30a25f781 Isabelle2016-1
 64b47495676d5d6bdec02032a7a90fe6e1ff6c50 Isabelle2017
 194fa3d2d6a4d01f9f3cde59125c466c525216be Isabelle2018-RC0
+cf01d04e94d71e6cda86a7740377ad903f86706b Isabelle2018-RC1