OS X Yosemite: The pre-event rumours

Read on for the rumours and speculation about Yosemite's release date and other details that we collected before the launch event event. See for yourself how much we (and the industry in general) got right, and how much we got wrong!

OS X 10.10 Yosemite release date: When is Yosemite coming out?

It looks like Yosemite is almost ready to go. The gold master has just been made available to developers, and that usually means that the release is imminent.

But how imminent? In fact OS X Yosemite might be launched as early as next Thursday, 16 October. On 8 October Apple sent out invites to a press launch event on 16 October and, while iPads are very likely to be the focus of the event, it's quite possible that Apple will take the opportunity to launch Yosemite to the public at the same time.

Here's the invite, together with its mysterious slogan. We'd love to hear your thoughts on what clues can be gleaned from these few words and coloured lines. We've tried decoding it in our iPad 6 invite hints & clues article.

OS Yosemite release date: Invitation

The gold master version of Yosemite hit the Macs of those enrolled in the beta program at the same time as Microsoft was revealing Windows 10 - not Windows 9 as was expected, but a version of the Windows OS that sounds incredibly similar to Mac OS X (those in the know are aware that the X is the Roman numeral 10, not ex). Windows 10 won't arrive until next year, by which point Apple might be considering moving to OS 11.

See also: An Apple fan's perspective on the Windows 10 launch

The latest version of Yosemite is likely to be as close to the final version as it is possible to be, although there may still be bugs.

While it is possible that Yosemite could roll out on 16 October, previous rumours pointed to the 21 October, and this remains a possibility.

The beta version of Yosemite has been available to developers since June, while the public beta opened to the first one million people who registered on 25 July. They'll continue to test the beta version of Yosemite to help Apple iron out the bugs until its release this autumn.

So far, Apple has yet to be more specific than an autumn launch, but sources cited in a report from 9To5Mac claim that Yosemite will arrive in October.

The latest reports to emerge in September suggest a 21 October Apple event, during which Apple will unveil new iPads (presumably the iPad Air 2 and iPad mini 3) in addition to announcing the immediate availability of OS X Yosemite.

At time of writing, OS X Yosemite is in its third public beta and the eighth Developer Preview, so it shouldn't be long before the Gold Master version of the new operating system is released for testing ahead of the final public release.

In 2010, Apple announced OS X 10.7 Lion in October before releasing it to the public in July 2011. In February 2012, OS X 10.8 Mountain was announced before being rolled out in July 2012. Most recently, Apple announced OS X 10.9 Mavericks in June 2013 before making it available to the public in October 2013.

With OS X Mavericks not launching until October 2013, it seems likely that Apple will release its new Yosemite operating system in a similar time frame.

See: Will your Mac run Yosemite?

Apple will want to hurry the launch of Yosemite now that iOS 8 has arrived, because there are several features that won't work in iOS 8 until the new Mac OS is available, including iCloud Drive and Continuity.

Find out about the competition: read about how similar Windows 10 is to Mac OS X, and how Mac OS X Yosemite compares to Windows 8.

Siri for the Mac 

Many expected Apple to make Siri available on the Mac in OS X 10.9. Apple's voice technology was introduced more than two years ago on the iPhone 4S, and then on the iPad, but has yet to make its way onto the Mac. See also: Siri for Mac rumour round-up

Control Centre

We were hoping Apple will decide to bring iOS 7's Control Centre to OS X 10.10. It could revolutionise System Preferences and make them more accessible for the less experienced user.

OS X 10.10 Yosemite: How to get the Yosemite beta

You can find out everything you need to know about getting the OS X Yosemite beta on your Mac here.

Before you install it, though, it's worth checking out our article on how to dual boot Yosemite and Mavericks on a Mac.

Despite download issues, it seems that the release of the public Yosemite beta doubled the adoption rate of the operating system within just 24 hours.

See also: 10 Mac OS X Yosemite tips and tricks

Also read our comparison of Yosemite and Mavericks

Have some geeky fun with this guide to using terminal on the Mac