Research firm Chitika is reporting that the beta versions are being adopted by developers at a rate almost four times that of OS X Mavericks



From TUAW:

Now, neither of the operating systems really gathered all that much usage during testing -- at 30 days past the release of the initial beta, OS X Yosemite is only generating 0.20 percent of North American OS X web traffic. But that's four times the rate of OS X 10.9 Mavericks 30 days after initial beta release. As Chitika points out, "users of the now nine-year old OS X Tiger still generate more Web traffic than Yosemite users."

In other news, Chitika figures now show that OS X Mavericks is at the top of the OS X usage heap, generating a whopping 45.7 percent of all North American OS X web traffic, followed by OS X 10.6 Snow Leopard (17.5 percent) and OS X 10.8 Mountain Lion (17.1 percent). You can see how your favorite legacy OS X version fared in the pie chart following this post.

  OS X Yosemite beta adoption rate almost 4X that of Mavericks