Byron has the iPhone 7 and the iPhone 6S Plus. He wants to know if he'll have issues upgrading his 6S Plus to iOS 11. Leo says that there's been complaints about loss of battery life updating to iOS 11. Even Leo's wife has noticed that on her 6S Plus. Leo says that they've also put out a few patches to fix issues that crop up. He always recommends waiting at least until the third patch after a new operating system comes out. Since iOS 11.1 is the current, it's OK to go ahead and update.