how to find out all the activities happend in a branch in the last month?
Do not forget the time directive of selection rule. element /myPath/… /main/{!created_since(16-Sep-2009)} element /myPath/… /main/LATEST Can enable you to see versions from a month ago (see time and query) See also “time-based rule” answer. From there you can branch and update your code from this older stable point.