OS X Mavericks build 13F34
| Build of OS X Mavericks | |
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| Architecture | x64 |
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| About |  |
OS X Mavericks build 13F34 is the official Beta 10 build of OS X Mavericks 10.9.5, that was preinstalled on a late 2014 MacBook Pro with a prototype of the Force Touch trackpad. It was then released to the public on 19 September 2014.