Apple's OS focuses on performance and laying the groundwork for future apps. Apple's iOS 12 software update is available today for supported iPhone, iPad, and iPod touch devices, and on the surface, it looks like one of the smallest new iOS releases Apple has pushed out.

This isn't a surprise; Apple said earlier this year that iOS 12 would be more about performance and stability than adding new features. Some major additions that were originally planned—like an overhauled home screen—were reportedly delayed to a later release.

And it's also not a bad thing. Frankly, iOS 11 had some problems. Apple released several small updates in late 2017 and throughout 2018 to fix those problems, all while battling some frustrated customers' perceptions that the company was deliberately making older devices obsolete to encourage new sales as overall smartphone sales slowed their growth industry-wide.