The update, called iOS 17.5.1, was quietly released by Apple, and contains ‘important bug fixes’, according to the tech giant.The update, called iOS 17.5.1, was quietly released by Apple, and contains ‘important bug fixes’, according to the tech giant. The update, called iOS 17.5.1, was quietly released by Apple, and contains ‘important bug fixes’, according to the tech giant. Science & tech Articles | Mail Online