In a JIRA v5.2.2 environment, what is the best way to immediately spot when estimates have changed? Better still, when estimates have changed by more than a certain criteria (such as > +8h)?
Greenhopper?
A Time Management tool such as Tempo?
A Listener?
Some sort of custom JQL query? (I have seen the new functionality that will appear in Groovy Script Runner v2.1).