Mac OS Compatibility Guide for iMac

Which versions of macOS does my iMac support?

MacBook Pro Models	macOS Big Sur	macOS Catalina	macOS Mojave	macOS High Sierra	macOS Sierra	OS X El Capitan	OS X Yosemite	OS X Mavericks	OS X Mountain Lion	Mac OS X Lion	Mac OS X Snow Leopard	Mac OS X Leopard	Mac OS X Tiger
	11	10.15	10.14	10.13	10.12	10.11	10.10	10.9	10.8	10.7	10.6	10.5	10.4
iMac (Retina 5K, 27-inch, 2020)	Yes	Yes	No	No	No	No	No	No	No	No	No	No	No
iMac (Retina 5K, 27-inch, 2019)	Yes	Yes	Yes	No	No	No	No	No	No	No	No	No	No
iMac (Retina 4K, 21.5-inch, 2019)	Yes	Yes	Yes	No	No	No	No	No	No	No	No	No	No
iMac Pro (2017)	Yes	Yes	Yes	Yes	No	No	No	No	No	No	No	No	No
iMac (Retina 5K, 27-inch, 2017)	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No	No	No
iMac (Retina 4K, 21.5-inch, 2017)	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No	No	No
iMac (21.5-inch, 2017)	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No	No	No
iMac (Retina 5K, 27-inch, Late 2015)	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No	No
iMac (Retina 4K, 21.5-inch, Late 2015)	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No	No
iMac (21.5-inch, Late 2015)	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No	No
iMac (Retina 5K, 27-inch, Mid 2015)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No
iMac (Retina 5K, 27-inch, Late 2014)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No	No
iMac (21.5-inch, Mid 2014)	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No	No
iMac (27-inch, Late 2013)	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No
iMac (21.5-inch, Late 2013)	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No
iMac (21.5-inch, Early 2013)	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No
iMac (27-inch, Late 2012)	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No
iMac (21.5-inch, Late 2012)	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No	No	No
iMac (21.5-inch, Late 2011)	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No
iMac (27-inch, Mid 2011)	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No	No
iMac (21.5-inch, Mid 2011)	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
iMac (27-inch, Mid 2010)	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
iMac (21.5-inch, Mid 2010)	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
iMac (27-inch, Late 2009)	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
iMac (21.5-inch, Late 2009)	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	No
iMac (20-inch, Mid 2009)	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
iMac (24-inch, Early 2009)	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
iMac (20-inch, Early 2009)	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
iMac (24-inch Early 2008)	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
iMac (20-inch Early 2008)	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
iMac (24-inch Mid 2007)	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
iMac (20-inch Mid 2007)	No	No	No	No	No	Yes	Yes	Yes	Yes	Yes	Yes	Yes	Yes
iMac (24-inch)	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes
iMac (20-inch Late 2006)	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes
iMac (17-inch Late 2006)	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes
iMac (17-inch Late 2006 CD)	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes	Yes
iMac (Mid 2006 17-inch)	No	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes
iMac (Early 2006 20-inch)	No	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes
iMac (Early 2006 17-inch)	No	No	No	No	No	No	No	No	No	No	Yes	Yes	Yes
iMac G5 (20-inch iSight)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac G5 (17-inch iSight)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac G5 20-inch (Ambient Light Sensor)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac G5 17-inch (Ambient Light Sensor)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac G5 (20-inch)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac G5 (17-inch)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac (20-inch USB 2.0)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac (17-inch USB 2.0)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac (15-inch USB 2.0)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac (17-inch Flat Panel, 1GHz)	No	No	No	No	No	No	No	No	No	No	No	Yes	Yes
iMac (15-inch Early 2003)	No	No	No	No	No	No	No	No	No	No	No	No	Yes
iMac (17-inch Flat Panel)	No	No	No	No	No	No	No	No	No	No	No	No	Yes
iMac (Flat Panel)	No	No	No	No	No	No	No	No	No	No	No	No	Yes
iMac (Summer 2001)	No	No	No	No	No	No	No	No	No	No	No	No	Yes
iMac (Early 2001)	No	No	No	No	No	No	No	No	No	No	No	No	Yes
iMac/iMac DV/iMac DV+/iMac DV SE (Summer 2000)	No	No	No	No	No	No	No	No	No	No	No	No	No
iMac/iMac DV/iMac DV SE (Slot Loading)	No	No	No	No	No	No	No	No	No	No	No	No	No
iMac (5 Flavors)	No	No	No	No	No	No	No	No	No	No	No	No	No
iMac	No	No	No	No	No	No	No	No	No	No	No	No	No