--- a/COPYRIGHT Mon Jul 10 22:06:42 2023 +0200
+++ b/COPYRIGHT Mon Jul 10 22:31:24 2023 +0200
@@ -1,6 +1,6 @@
ISABELLE COPYRIGHT NOTICE, LICENCE AND DISCLAIMER.
-Copyright (c) 1986-2022,
+Copyright (c) 1986-2023,
University of Cambridge,
Technische Universitaet Muenchen,
and contributors.