I want to know the answer to the following question:
When was the age limit increased to 28?
All the background I'm provided with is that "The contestants must be legal U.S. residents, cannot have advanced to particular stages of the competition in previous seasons (varies depending on the season, currently by the semi-final stage until season thirteen), and must not hold any current recording or talent representation contract by the semi-final stage (in previous years by the audition stage).". Is that enough to answer the question?
Answer: no