Tuesday night at the property development channel Mac Dev Center a fourth beta OS X Mavericks 10.9.5. Update tested by developers since the beginning of the month. The release of the first test update of OS X 10.9.5 was held July 31 - a month after the release of the final assembly OS X 10.9.4 Mavericks .
Update OS X 10.9.4 debuted on 30 June. It corrected a rare mistake wireless interface Wi-Fi and eliminate the bug with sleep mode, receiving a new version of the browser Safari 7.0.6. In addition, in this assembly, improved compatibility with the "iron", increased stability and safety.
Fourth assembly of OS X 10.9.5, as well as the previous three, has the status of «Pre-release» and registered under the number 13F18. Key areas on which testers should pay attention to the basis of the cover sheet from Apple: Safari, USB, USB Smart Cards, graphics drivers, Thunderbolt and Gatekeeper.
The fourth assembly is available for users of previous versions of the three OS X 10.9.5 through the Software Update feature in Mac App Store. It is expected that it will be the last update for the Mavericks before the release of the final version of OS X Yosemite, scheduled for October.