I am using titleForHeaderInSection to show a header for a UITableView section. It worked fine with the iOS6 SDK, but the iOS7 SDK shows the header in all CAPS.
I guess
Simplest Solution for was below: Swift 2.x
func tableView(tableView: UITableView, willDisplayHeaderView view: UIView, forSection section: Int) { header.textLabel?.text = header.textLabel?.text?.capitalizedString }