Apple has just officially launched the official version of iOS 8.4. All iPhone, iPad and iPod touch users should have received the push message of this version.

It is reported that the new version optimizes the iBooks application, fixes some bugs, and brings a new default Chinese font. However, the highlight of this update is that Apple Music has been officially launched, and this music service will be the first to log in to more than 100 countries and regions.

The following is the update details:

This update introduces Apple Music, a revolutionary music service, 24/7 global radio, and provides fans with a way to interact with their favorite artists - all in a redesigned "music" application. IOS 8.4 also includes iBooks improvements and problem fixes.

Apple Music

Become an Apple Music member and play millions of songs in Apple Music music directory, or offline music for later playback

Select for you: members can view playlists and album recommendations, and music experts will carefully select for you

New content: Members can view the latest outstanding music - directly recommended by our editors

Radio: Use Beats 1 to listen to music, interviews and exclusive radio programs, and play radio stations created by our editors. Of course, you can also use any artist or song to create your own radio station

Connect： View the views, photos, music and videos shared by artists you follow, and become a member of the dialogue

My Music: All the music you bought through iTunes, songs from Apple Music, and your playlists come together in one place

Play on demand

The newly designed music player includes "recently added", mini player, "play next" and more functions

iTunes Store： Still the best place for you to buy your favorite songs - one song or album at a time, as you like

Whether the above services are available and related functions may vary by country or region

IBooks improvement and repair

Browse, listen to and download audio books in iBooks

Enjoy the new "playing" function, specially designed for audiobooks

The iBooks special edition bibliography can now be read on the iPhone in addition to the iPad

Find and pre order series books in your database

The auxiliary function service, vocabulary and chapter navigation of the widget applet for books produced by iBooks Author have been improved

New default Chinese font

The new setting allows you to turn off the automatic night theme in the library

Solved the problem that may lead to the inability to hide purchased items

Solved the problem that may lead to the inability to download books from iCloud

Other function improvement and problem repair

Fixed a problem with device restart when receiving specific Unicode character groups

Fixed a problem that caused GPS accessories to fail to provide location data

Fixed the problem that the Apple Watch app was removed and then reinstalled.