JIRA 4.4.5 - JQL Search for custom field value change

[Ben]

Is there a way in JIRA 4.4.5 to perform a JQL query for issues that have changed custom field value? For example issue TEST-1 has a custom field 'TestType' with a value of 'Verification'. Someone changes the value of that field to 'Validation'. Is there a way using JQL to search for issues with this change?

[Ben]

Thanks Eva. Actually, the 'changed' operator works in JIRA 4.4.5 too but only for JIRA built-in fields, i.e. Status. I am asking specifically about custom fields. This feature does not seem to be in JIRA 6.0 even.

[Eva]

Nope, only works startin in JIRA 5: http://blogs.atlassian.com/2013/02/jql-the-most-flexible-way-to-search-jira-24/