Apple today released the eighth preview of its upcoming software, OS X Mavericks to developers. This latest preview comes approximately two weeks after Preview 7.
OS X Mavericks brings a host of new changes, among those changes include: iCloud Keychain, Multiple Displays, iBooks for Mac, Safari 8, Maps, and more.
Also released is a new Safari 6.1 seed, sent to Safari developers. It can be downloaded from the safari developer center.
OS X Mavericks is expected to be released in late October. Developers can download the lates update from the Developer Cneter online or via software update from the Mac App Store.