The new iOS 8 was officially announced in June 2014. It hasn’t been officially released yet, but devs are testing its features this summer with Apple updating the betas and improving the operating system with interesting options. Registered developers can download iOS 8 beta 4 this week to see how it changes the previous betas, and ordinary users can simply look at the list of changes to imagine how their life can be enhanced in September when the firmware becomes publicly available.
iOS 8 beta 4 features lack some options, for example, you cannot report bugs any more. But you can get some other features after you learn how to update to iOS 8 beta 4 from your iPhone or iPad. This instruction will help you to perform this procedure.

How to Install iOS 8 Beta 4

If you have an account with the iOS Dev Center, you should take these steps to enjoy the firmware update. If your iPhone is jailbroken don't follow these steps as you will lose it. There is no news about iOS 8 jailbreak and its release. Step 1. Login to your account here. Step 2. Select Certificates, Identifiers & Profiles menu and then choose Devices from the left panel. Step 3. You will see the plus sign “+” that allows adding an iDevice of yours. Step 4. The program will ask your 40-character UDID number which can be found through iTunes under Summary – Serial Number - Identifier. Step 5. You can also name your iPhone or iPad before you insert your UDID number. Then you have to select Continue option. Step 6. Review everything you have entered to make sure it is correct and choose Register. Step 7. Select Done and your registration is complete. You can now download iOS 8 beta 4. Step 8. The firmware can be downloaded under iOS 8 beta menu. You can also choose direct links if you don’t want to use this method. Step 9. Once you have downloaded the fourth beta, you need to unzip it to get the .ipsw file. Step 10. Use iTunes to install the firmware by launching this program on your computer and selecting your iPhone or iPad from the top menu, then going to Summary and holding down Shift on Windows [Option on Mac] along with Update button. Point to your .ipsw file and allow iTunes install it on your smartphone or tablet. Step 11. Wait till your device reboots and start exploring the new iOS 8 beta.