OSA - change text within criterion without creating a new template.

Hi,

I have an appraisal template, each year, there is some minor change to the wordings or text within some of the criterion/questions within the template. There is no additional or deletion of criterion. It would be tedious to copy/create a new template every year, grant the template to users, this also makes reporting and teaching end-users more tedious. What is the best way to retain a template, when there is only minor changing of wordings use in the template ? We cannot overwrite the criterion because that affects previous appraisals already filled. Any suggestions are appreciated. Thanks.

Regards

Kir Chern