While nearly everyone is waiting for confirmed information about upcoming three iPhones which will have its premiere by the end of this year, Apple hasn't forgot about older devices. Day after publishing fifth developer beta of iOS 12 Apple released 4th public beta of new iOS's version. The most important change in this version of system is Battery Health option in stable version. In previous releases Battery Health was in beta version, but it looks that this function works properly and Apple thinks that they finally reached first stable version of this option.
From less important new features in public beta 4 it's easy to notice some icon changes in News and Photos, more saturated wallpaper and obviously solved bugs from previous beta versions. We expect that first stable version of new iOS will be released at the same time when new Apple's phones will be released on the market.