Apple released the new betas of its upcoming three new operating systems for its products on July 21, Tuesday, exclusively to developers. The professionals may now test the latest developments of iOS 9, OS X El Capitan, and watchOS 2 before final builds of these operating systems become available to the public around September this year.

According to Apple Insider, the fourth beta versions of iOS 9, watchOS 2 and El Capitan were identified as 13A4305g, 13S5305d and 15A226f, respectively. Although September is the most probable month of release for these operating systems, their official launch to the public will definitely take place during fall.

As expected, there are still some bugs in these latest releases since these are not yet the final versions. The multinational technology company already notified the developers to take note of the iOS issues regarding Siri, Safari, Podcasts, Maps, Mail, Multitasking, iCloud Backup, HomeKit, HealthKit, CarPlay, Apple Pay, AirPlay and others.

Nevertheless, according to Tech Crunch, the most notable update would be the return of Home Sharing to Apple Music application. Its return is a fulfillment of Eddy Cue's promise in his tweet last July 6. Cue is Apple's senior vice president of Internet Software and Services and he is the one overseeing Apple's stores like the iTunes.

The latest features that can be found in iOS 9 were major enhancements to tablet multitasking, News application, Siri and search features.

On the other hand, El Capitan has several issues with Language, Apple ID, and Photos. The company also gave a precaution to the professionals not to upgrade earlier Mac OS to OS X El Capitan.

Meanwhile, for watchOS 2, the updated version will make several important modifications to Apple Watch. Some of the improvements will include third-party watch faces and support for native applications.

It can be remembered that the third beta releases were made available for download last July 8. During that time, Apple did not release notes for watchOS and the beta was not available to the public, unlike the iOS 9 and OS X El Capitan. After two weeks, it is just the same, the public beta program for watchOS 2 is still not available.

Apple's anxious non-developer users may still try the public beta programs for OS X El Capitan and iOS 9 released two weeks ago. However, the multinational technology company reminded the public that the beta versions are only intended for testing purposes. The users should not install these to their gadgets for everyday use. Due to this precaution, the non-developer users who will still utilize the pre-release software will be held responsible if something goes wrong to their devices.