According to the class-action complaint, the plaintiff and class are accusing Apple of deceptive trade practices and false advertising, specifically calling the company out for harming their iPhone 4S experience when they updated to the latest version of iOS 9.
"The update significantly slowed down their iPhones and interfered with the normal usage of the device, leaving Plaintiff with a difficult choice: use a slow and buggy device that disrupts everyday life or spend hundreds of dollars to buy a new phone. Apple explicitly represented to the public that iOS 9 is compatible with and supports the iPhone 4S. And Apple failed to warn iPhone 4S owners that the update may or will interfere with the device's performance."
Specific issues cited in the lawsuit include "performance problems in all aspects of the iPhone's functionality, including core functions like the phone, email, text messages, contacts, etc." and "crashes and freezes" following the update. The lawsuit also slammed Apple for not allowing users to "revert their iOS 9 software to a previous, better functioning version of iOS."
On false advertising, the lawsuit states Apple's promise of "Faster performance, improved security, convenient updates, and longer battery life" on its website is misleading, as performance is actually much slower on the iPhone 4S with iOS 9 installed. New York District Court Judge Sterling Johnson Jr. is presiding over the case, but no hearing has been set.
Full article can be found at Mashable