Within a week of the September 10 Keynote, Apple releases the Developer Preview 7 of OS X 10.9 Mavericks. Few new features and all focused on improving the Mac user experience: new backgrounds have been added, password management with iCloud Keychain has been improved, the migration system has been updated from the old operating systems and the possibility of renaming PDFs has been added. featured on iBooks. The general stability of the operating system has also been improved, and this suggests that the final version is not very distant. But if you are impatient to try OS X Mavericks, I show you how to do it.
Upgrade OS X 10.9 Mavericks from a previous version to DP7
If you have previously installed OS X Mavericks on your Mac, to update it simply access the Mac App Store and access the tab Updates. The presence of Developer Preview 7 will be notified and, by selecting the button Refresh, the operating system will be updated to the latest version.
Install from scratch OS X 10.9 Mavericks DP7
You can install OS X Mavericks using a USB flash drive. The first operation to be performed is to install Developer Preview 1 on compatible Macs following the guide in this link. Subsequently, through the Mac App Store you can update to Developer Preview 7 via the tab Updates.