[support] Updating themes :: what is overwritten?

[Tim Johnson]

I'm using the mayo theme on drupal 7.17.
I modified sites/all/themes/mayo/templates/node.tpl.php

Should there be an update for mayo available and should I install
it, I presume that node.tpl.php will be overwritten.

If I am correct, is there a good strategy for preserving my code
changes?

thanks
-- 
Tim 
tim at tee jay forty nine dot com or akwebsoft dot com
http://www.akwebsoft.com