git-svn-id: https://nagiosplug.svn.sourceforge.net/svnroot/nagiosplug/nagiosplug/trunk@1689 f882894a-f735-0410-b71e-b25c423dba1c
@@ -1,2 +1,5 @@
check_cluster2 is now part of the core Nagios-Plugins distribution and has
been renamed check_cluster. It will be installed automatically.
+
+The threshold format has changed and is not backward-compatible; be sure to
+understand it correctly. Use --help to print the full help.
Thomas Guyot-Sionnest