People familiar with the Mavericks Developer Preview have informed AppleInsider that the OS supports the following Macs:
• iMac (Mid-2007 or later)
• MacBook (13-inch Aluminum, Late 2008), (13-inch, Early 2009 or later)
• MacBook Pro (13-inch, Mid-2009 or later), (15-inch, Mid/Late 2007 or later), (17-inch, Late 2007 or later)
• MacBook Air (Late 2008 or later)
• Mac mini (Early 2009 or later)
• Mac Pro (Early 2008 or later)
• Xserve (Early 2009)
“In addition, the system requirements call for 64-bit, Intel-based Macs currently running Mac OS X 10.6.7 Snow Leopard or higher, with 8GB of free disk space for installation,” AppleInsider reports. “The computers and requirements listed above are nearly identical to OS X 10.8 Mountain Lion’s requirements.”
Read more in the full article here.