Apple has released iOS 8.4 beta 4 to developers for testing.
The new beta contains bug fixes and improvements. Its build number is 12H4125a.
Previous beta versions of iOS 8.4 brought a new Apple Music app which will be the home to Apple's new music streaming service that launches at the end of the month. Check out some screenshots of the new app here. Click here for more information on Apple Music.
Developers can download the new beta from the link below.
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