Apple announced that the new OS X, 10.9 Mavericks will be available as a free download Tuesday at a company event held that same day in San Francisco.

This is the first time Apple has announced a major update without charging. The last major updates like Mavericks, 10.8 Mountain Lion and 10.7 Lion, were priced at $19.99 and $29.99 respectively.

The system is promised to have a number of improvements over the 10.8 Mountain Lion, including a better notification system and support for multiple monitors, full screen apps, a revamp of Finder, and the addition of the iCloud keychain, which will make it easier to save all passwords in one place.

Other apps have been updated and the general OS X is set to look more in line with the recent iOS 7 update. Some of the appearance changes will include the contacts fake book and pages, calendar's torn page marks and Notepad's yellow legal pad.

Other app improvements include Maps showing up in Caldendar events and allowing data to be sent quickly via iOS devices. There will also be an ability to make flashcards on the devices.

Tim Cook also mentioned during the announcement that Mavericks would allow users to browse the web an hour longer with a promised longer battery life, and a compressed memory will allow them to browse faster as well.

Watch the event live stream here or tune in to CNET for their continued live blog coverage.

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Apple event, Livestream, Tech