Every time I update MTOS (having just updated from 4.1 to 4.15 beta1), I either have to edit cloner.pl or set it to disabled otherwise I get this message in the activity log:
Plugin error: /publichtml/htdocs/cgi-bin/plugins /Cloner/cloner.pl MT version 4 required--this is only version 1.1 at lib/MT.pm line 63. BEGIN failed--compilation aborted at /publichtml/htdocs/cgi-bin/plugins /Cloner/cloner.pl line 14. Compilation failed in require at lib/MT.pm line 1258.
Changing "use MT 4;" to just "use MT;" seems to stop the error, if I choose to keep the plugin enabled, but why am I getting this in the first place?
(This occurs under 4.0, 4.1 and 4.15)

We need to make sure that you are don't have different versions of cloner.pl installed. This plugin is distributed with the core app and as such, we need to make sure it works right out of the box. Can you report this as a bug?