Mac Os X 10.10.5 Page

However, the early builds of 10.10 were notoriously buggy. Users reported Wi-Fi dropouts, graphic glitches, and memory leaks. As the lifecycle progressed, updates 10.10.1 through 10.10.4 addressed these incrementally. By the time arrived, it was essentially a "cleanup" release, designed to prepare the Mac for the next generation while closing the book on the Yosemite saga.

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