Users can also select to stop receiving beta updates, if desired.

The upgrade is available for users running OS X 10.6.8 and above.

Apple also announced that its iWork suite will also be free.

The software could be released publicly as early as this week.

The issue prevented some users from composing a message.

The new Mac software is expected to arrive publicly sometime late next month.

Version 10.10 of the desktop OS should officially launch sometime next month.

The new version of OS X is expected to arrive sometime this fall.

The issue plagued some users trying to download the beta version of OS X 10.10.

The first OS X Yosemite public beta will be available to download tomorrow, July 24.

Apple's new video provides a whistle-stop tour of OS X Yosemite's key design changes.

Here's a look at just a few of the changes coming with OS X Yosemite.

It looks like Apple could be bringing an iMac with Retina display to the market soon.

Will your Mac run OS X 10.10 Yosemite?

Andrew and Vero Pepperrell are promising to add new features to the app soon.

If you want to get in on the testing, you should head to Apple’s site now.

If you missed today’s keynote, Apple has just updated its site with a huge amount of new information.

Just like in previous years, Apple has taken a heavy dose of inspiration from the developer community.

Apple wants you to "use the right device for the moment."

When can you get your hands on OS X Yosemite?

Apple has made some huge improvements to Safari in OS X 10.10.

Yosemite comes with plenty of new features, including an all new experience for Spotlight.