A new operating system, OS X Yosemite, will be released early in October, according to 9to5Mac. The new software "golden master release  will be around Oct. 10; however, every two or three weeks until then Apple will be releasing Developer Previews of the program until a final preview on Sept. 29.

OS X Yosemite will be available for a free download in late October, and 9to5Mac reported that Apple will likely provide more information on the new software in a media briefing, which it has done before. They add that the company's new "fitness and health wearable wristbands" will be unveiled in that month, and Yosemite could be explained at the same event.

Among other new products Apple plans to reveal are two new computers: a new 12-inch Macbook and a 4K iMac. The former will have a 12-inch Retina Display screen, according to 9to5Mac, as well as a lighter and thinner aluminum body. However, it is not known how Apple will market the new laptop.

The new iMac will have a better screen resolution and graphics, which would match Yosemite's increased capabilities. 9to5Mac explained that Yosemite will have colorful icons, thinner text and sharper window corners.

"Those interface elements appear especially optimized on higher-resolution screens, so it makes sense for us to debut new Retina Macs around the time of Yosemite's release," a source told the site.

However, 1 million people will be able to test Yosemite beginning today. According to Macworld, Apple will make available a beta version of the software to the first million people who sign up for the OS X Beta Program. Those who sign up will receive a code for the App Store that will allow them to download the program. They will receive updates through the Software Update system.

Users who participate in the program will be able to test the new software and help shape it by providing feedback to the developers via the Feedback Assistant app, reported Macworld, which will be installed along with the beta-test system.

However, Mashable reported that Apple recommends the software be installed on a secondary computer since the software still has some issues. They also note that updates may not reach beta users as quickly as developers.