Notification for changes to Aircraft Order

[TheGrew]

At the moment a notification gets posted when an airline makes an order for new aircraft. I think it would also be good to get a notification if an airline makes a substantial change to an existing order (or even cancels it deliberately or via bankruptcy).

For example I just decided to upgauage half of my ERJ 190-E2 order to 195-E2s.

What is considered 'substantial' is up for discussion but I think should include up or down gauging within a family and a decrease in the order size.