[rt-users] How can I get ANY ticket change to notify an Owner?

[Matt England]

How can I get ANY ticket change to notify an Owner?

For example, while testing my RT site, I updated, as account X, the 
priority of a ticket owned by account Y.  Account Y did not get notified by 
email the update of the priority.

Should it?  If not, how can I make notifications for any change in the 
ticket status, content, meta-data, etc?

-Matt