The Worldwide Developers Conference 2015 is just around the corner and with it comes news of what's new in store for Apple devices. Alongside the highly anticipated iOS 9, reports have come up that the latest update to Apple's operating system, OS X 10.11, would be unveiled on the same event in June.

The Cupertino-based tech firm has been tight-lipped on the upcoming OS update and its features but that did not stop people from coming up with speculations on what arrives with the OS X 10.11. Here are some details about the upcoming operating system that has been doing the rounds recently.

Apple Inc.'s previous OS versions were traditionally named after powerful cats such as the Leopard, Snow Leopard, Lion and Mountain Lion. But according to Macrumors, the naming system for the new OS would now veer from that and would continue down the road with popular California landmarks.

The shift started with the introduction of the OS X 10.9 Mavericks and after that was OS X 10.10 Yosemite. In 2014, it was learned that Apple filed for trademarks on OS X Sequoia, OS X Ventura, OS X Sonoma and OS X Mojave. Other places have also been registered.

It is still unknown, which name the OS would be given.

As putting up more new things on the OS X seemed more challenging to the Tim Cook-led firm, some reports have said that the company would focus on more quality assurance issues.

In a report on 9to5mac, the company is said to have looked at adding the Control Center into OS X 10.11 after it was not included in the final version of the Yosemite.

"Control center moves many of the controls from the Mac's Menu Bar to a pane that slides out from the left side of the Mac's display, adding on-screen music controls and other iOS-influenced features," wrote the site.

As security has been one of the main concerns on the Apple laptops, it has been reported that the company is working on a "rootless" feature that would add protection to the device.

This new security feature would further increase the gadget's susceptibility to malware and safety in using extensions. Rootless would be so powerful that some users on the administrative-level might not even be able to access protected data on the system.

Apple's in-house applications are also said to undergo an overhaul with many of them being transitioned to process data using the iCloud instead of other services. Those rumored to experience the shift are the Calendar, Notes and Reminders app.

If the system receives a WWDC 2015 launch, then it is highly likely that users would finally be able to download the update in fall, noted Macrumors.