Apple is working round the clock to put out new versions of its mobile operating system as soon as possible and just recently, the Cupertino-based company has made available the fourth beta for the iOS 9.2, just a week after beta 3 was released.

The new beta version brings along new features and tweaks, including the newfound ability of users to edge swipe on the Safari View Controller. Navigating through the in-app browser is also made nippier with the new beta.

Thanks to the iOS 9.2 beta 4, the Arabic language is now supported on various components of the operating system. According to Neurogadget, this change was prompted by the tech giant's recent venture into the Middle East.

With this update, users in the region will be able to set their language as default. Siri now supports the said language as well the QuickType and Keyboard Dictation features of iOS devices.

An AT&T-centric feature was integrated into the iOS 9.2 beta 4. The NumberSync service, which lets users use one number for their tablets and phones, is now up and running on the beta. This should automatically route text messages and calls are routed directly to the linked devices.

The audio quality was also enhanced by and large but most especially with stereo systems streaming and synchronizing. Pairing with the Apple Watch is made smoother too, while bug fixes should make the iCloud Keychain perform better.

Apple also aims to maintain as well as improve its 3D Touch technology on its latest smartphones, iPhone 6s and 6s Plus. With the iOS 9.4 beta 4, the key feature of the new iPhone line was enhanced in a way that owners of the said handsets will be able to feel, discern and pinpoint the development.

The iOS 9.4 beta 4 is currently available to users signed up to the Developer and Public Beta test programs. Just like usual, download the beta from Settings – General -- Software update.