After the release of the latest version iOS 12.0, Apple made it impossible for users to downgrade back to iOS 12 version due to the issues that came with it. By applying this policy, the Apple Company is limiting the access to iOS 12.0.1.
The iOS 12 version of software came out in September and had a pretty bad feedback from the Apple users. There were battery life problems, Wi-Fi and Bluetooth connectivity, the iMesagges were sent to wrong contacts and so one. Also when it come to latest devices, iPhone XS and XS Max there were reported hardware and communication issues, the handsets would automatically connect to Wi-Fi network at 2.4GHz and not to 5GHz like is supposed to do. Some iPhone devices would not even charge when they were connected with a lightning cable.
These are some of the reasons why Apple launched iOS 12.0.1; to fix the bugs.
Apple policy of blocking the possibility to go back at the previous version of software is a bold move. This strategy prevents users from experience others issues and have the device always up to date and with better running software.
After Apple gave the fifth beta version of iOS 12.1out for tests and evaluation, the code singing stoppage was available in short time. The release will be this week and it will come with an update support for Group Facetime and a new collection of emoji. The new version will give you a better experience on your device: Life Balance features, Memoji, Siri will have better integration and the ability to search multiple terms at once, Do Not Disturb is extended to Do Not Disturb at Bedtime, and a new feature Screen Time shows users how much time they use each app and they can limit their own time.