Apple has launched iOS 13.4 for all compatible devices. The updated software can be installed OTA or by using a computer. There are several new features coming to iPhones, with iPads gaining mouse and trackpad support in the latest version of iPadOS. Of course, whether updating an iPhone, iPad, or iPod touch, the software can be downloaded and installed for free. Many of the improvements are behind the scenes, but here are some of the features users will notice after updating to iOS 13.4.