I'm currently in the process of updating copyright notices where I work. To me, this is an ideal place for a SVN keyword:
Copyright 2008-$Year$ MyCompany The SVN keywords listed in the online documentation list Date, but it's far too specific for a copyright. As an alternate, perhaps a special formatting keyword for dates could be established: $Date(YYYY)$, for example. Alex Vincent San Leandro, CA -- "The first step in confirming there is a bug in someone else's work is confirming there are no bugs in your own." -- Alexander J. Vincent, June 30, 2001