Using 'bring forward' implies an increased urgency or importance for the event rescheduled. The product launch was brought forward to capture the holiday market.
Pro Tip 2/3
Calendar Changes
Expect calendar updates whenever 'bring forward' is used as date or timing changes occur. Juan brought forward our appointment, so I need to update my calendar.
Pro Tip 3/3
Possible Inconvenience
Rescheduling may inconvenience others; acknowledge this if you're initiating the change. I hope it's okay that I've brought forward our meeting.