diff -r 75623b4d6251 -r 9d3c7a04a65e .hgtags
--- a/.hgtags	Mon Nov 11 16:40:07 2013 +0100
+++ b/.hgtags	Mon Nov 11 17:34:44 2013 +0100
@@ -26,8 +26,4 @@
 76fef3e570043b84a32716b5633085d2fb215525 Isabelle2011-1
 21c42b095c841d1a7508c143d6b6e98d95dbfa69 Isabelle2012
 d90218288d517942cfbc80a6b2654ecb22735e5c Isabelle2013
-c37100233af71af51b225a090317f9cbe05e70a1 Isabelle2013-1-RC1
-782e430e6a83f89b1a9966b28c3d0e0ad883340d Isabelle2013-1-RC2
-fbcaa9f08879dc41d0cd38b6329e70bd602aa2f5 Isabelle2013-1-RC3
-594628261376738e2604627370fcf26e4eab22fa Isabelle2013-1-RC4
 9c1f2136532626c7cb5fae14a2aeac53be3aeb67 Isabelle2013-1