When you cancel a future meeting in Outlook 2010, it forces you to notify the attendees. Before a few weeks ago; when we canceled a past meeting, we were given the option of sending cancellation messages to the attendees. Now we are not given that option; the meeting is just deleted from the organizer’s calendar and the remains on the attendees’ calendar.
I know most of the time that's a good thing, but not when your department absence reporting is based on an "Absence Calendar".
Example; Jim plans vacation from 3-5 today, he schedules a meeting with the "absence calendar" and his manager approves it. Things get busy and Jim doesn't leave until 6. Previously, Jim could cancel the meeting at 5:30 and when prompted, he would notify attendees. The Manager would see and remove the meeting from the "absence calendar". At the end of the week, no vacation time would be charged to Jim. For the last week or two, no one gets prompted to notify attendees when they cancel a meeting that occurred in the past. So when Jim cancels the meeting at 5:30 no one gets notified and Jim gets charged for 2 hours of vacation.