You can try the link that Carolyn provided, but it is for Macs that cannot run Sierra or are running Snow Leopard, so dont be surprised if it doesnt work.

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Apple and software quality. sixcolors.com. Archived from the original on January 15, 2015.

Yosemite was released to consumers on October 16, 2014.

Following the Northern California landmark-based naming scheme introduced with OS X Mavericks, Yosemite is named after the national park.

It is the first major redesign of the OS X user interface since 10.5 Leopard.

Other changes include thinner fonts and blurred translucency effects.

Some icons have been changed to correspond with those of iOS 7 and iOS 8.

The Dock is now a 2D translucent rectangle instead of a skeuomorphic glass shelf, reminiscent of the Dock design used in early versions of OS X through Tiger and in iOS since iOS 7.

The Today view can display information and updates from various sources, along with widgets.

The widgets in the Today view are similar to those of iOS 8.

In addition, Apple added DuckDuckGo to its search offerings, a non-tracking search engine that doesnt store users data.

Safari allows you to remotely close tabs from an iOS device.

Safari now supports browsing in private browsing mode with certain windows (as opposed to all the windows having to be either in or out of private browsing).

Office For Os X Yosemite Mac OS X Lion

Instead of simply enlarging the window, the button now enters full-screen mode, eliminating the full-screen button at the top-right corner of windows that has been present since Mac OS X Lion.

Beta testers are required to acknowledge the potential risks involved with prerelease software, and sign a non-disclosure agreement (NDA).

The program began releasing Public Betas on July 24, 2014.

Six public betas of Yosemite were released.

Programmer John Siracusa, who had reviewed every OS release, wrote for Ars Technica that Yosemite is an aesthetic one-way valve.

Everything looks embarrassingly chunky, glossy, and gaudy.

Macworld s review generally praised Yosemite for its design, but noted that it had found WiFi network issues and that Continuity had proved unreliable.

Because of this, Apple replaced discoveryd with the mDNSResponder system (used in Mavericks) in 10.10.4.

Office For Os X Yosemite Code Of Death

Another notable bug experienced on Yosemite was the Unicode of death problem, following a similar bug in 2013, in which a meaningless Arabic text string could crash applications using the system text-display APIs.

Some users who upgraded to Yosemite complained that the Finder fails to show the contents of folders.

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Apple and software quality.

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