Version 9.1 improves the editing of recurring events. A new option allows editing of the selected occurrence and all future occurrences, without affecting previous occurrences. This new option is presented when a recurring event is opened.
In previous versions, only two options were provided - "Open this occurrence only" and "Open the entire series". The new option was inserted between those options and is labeled "Open this occurrence and all that follow".
In this example, a recurring staff meeting was moved to a different room and rescheduled to occur at 9:30. Notice how the previous occurrences were not affected, only future occurrences.