The AirPlay2 feature added to this update is the biggest change. It allows users to push any audio to a different room from anywhere in the home. It can also play audio or video on multiple speaker devices. That means when you When you watch Apple TV at home, even if you go to another room, as long as the HomePod in the room can continue to hear the drama.
This function is located in the control center and can be used not only for Apple's own applications, but also for third-party references that support AirPlay2. In addition, many third-party audio systems can also support AirPlay2.
In addition, the new version is also updated for HomePod and brings a 'stereo combination' function to HomePod. When the user sets up a second HomePod, the system will ask if you want to form stereo, if you confirm and follow the instructions, the device will Build balanced stereo effects through 'point-to-point wireless direct links' to communicate with each other.
Apple will soon hold a WWDC conference. The iOS 12 system will be announced at the conference. This year, it will be officially launched in September this year, which means that from the time point of view, iOS 11.4 should be the last major upgrade of Apple's iOS 11 system. In fact, Apple had previously released six betas for this version, which has long been planned.