Microsoft Office 2008 for Mac is a version of the Microsoft Office productivity suite for Mac OS X. It supersedes Office 2004 for Mac and is the Mac OS X equivalent of Office 2007 (with software tools such as the compatibility layer Wine, Windows versions of Office may also run on Apple's various generations of computers and OS X operating system). Office 2008 was developed by Microsoft's Macintosh Business Unit and released on January 15, 2008. Office 2008 was the last version of Office for Mac to support Mac OS X Tiger (10.4.9 or higher) and Macs with a PowerPC processor (G4 or higher) as well as newer Macs with Intel processors. Office 2008 was followed by Microsoft Office for Mac 2011 released on October 26, 2010, requiring a Mac with an Intel processor and the version 10.5 Mac OS X Leopard or 10.6 Mac OS X Snow Leopard of the Apple OS X operating system.