1.1 --- a/CONTRIBUTORS	Sun Jan 20 15:26:56 2013 +0100
     1.2 +++ b/CONTRIBUTORS	Sun Jan 20 15:34:27 2013 +0100
     1.3 @@ -3,6 +3,9 @@
     1.4  who is listed as an author in one of the source files of this Isabelle
     1.5  distribution.
     1.6  
     1.7 +Contributions to this Isabelle version
     1.8 +--------------------------------------
     1.9 +
    1.10  Contributions to Isabelle2013
    1.11  -----------------------------
    1.12