Following the release of a new 10.9.5 beta for developers, Apple today seeded new beta versions of Safari 7.0.6 for OS X Mavericks and Safari 6.1.6 for OS X Mountain Lion. The new betas focus on security fixes.

The new Safari builds can be downloaded through the Software Update mechanism in the Mac App Store or through the Mac Developer Center.
Apple has also previously seeded Safari 6.2 and Safari 7.1 for Mountain Lion/Mavericks to developers, but the 7.0.6 and 6.1.6 updates will be released to the public ahead of the later versions that may come alongside OS X Yosemite.


The new Safari builds can be downloaded through the Software Update mechanism in the Mac App Store or through the Mac Developer Center.
Apple has also previously seeded Safari 6.2 and Safari 7.1 for Mountain Lion/Mavericks to developers, but the 7.0.6 and 6.1.6 updates will be released to the public ahead of the later versions that may come alongside OS X Yosemite.
Apple Seeds New Builds of Safari 7.0.6 and Safari 6.1.6 to Developers [Mac Blog]