Mac OS X versions (builds) included with Intel-based Macs

Summary

Learn which versions of Mac OS X ship with Intel-based Macs. If you have a PowerPC-based Mac, see Mac OS: Versions, builds included with PowerPC Macs (since 1998) instead.

Important: Do not use a Mac OS X version earlier than the one included with the computer.

iMac	Date introduced	Original Mac OS X included (see notes 1 and 3)	Later Mac OS X included (see note 1)	Mac OS X Build(s) (see note 2)
iMac (21.5-inch, Late 2009)	Oct 2009	10.6.1	-	10A2155
iMac (27-inch, Late 2009)	Oct 2009	10.6.1	-	10A2155
iMac (20-inch, Mid 2009)	Apr 2009	10.5.6	10.6	9G3556, 10A432
iMac (Early 2009	Mar 2009	10.5.6	10.6	9G2030, 9G3610, 10A432
iMac (Early 2008)	Apr 2008	10.5.2	10.5.4	9C2028, 9E25
iMac (Mid 2007)	Aug 2007	10.4.10	10.5, 10.5.2	8R4031, 9A581, 9A3129, 9C3033
iMac (Late 2006, 20-inch)	Sep 2006	10.4.7	10.4.8	8K1106, 8N1430
iMac (Late 2006, 24-inch)	Sep 2006	10.4.7	10.4.8	8K1123, 8N1430
iMac (Late 2006, 17-inch CD)	Sep 2006	10.4.7	10.4.8, 10.4.10, 10.5.4	8K1106, 8N1430, 8R3032, 9E25
iMac (Late 2006, 17-inch)	Sep 2006	10.4.7	10.4.8	8K1106, 8N1430
iMac (Mid 2006, 17-inch)	Jul 2006	10.4.6	-	8I2057
iMac (Early 2006)	Jan 2006	10.4.4	10.4.6	8G1165, 8G1171, 8G1172, 8I2040

Mac mini	Date introduced	Original Mac OS X included (see notes 1 and 3)	Later Mac OS X included (see note 1)	Mac OS X Build(s) (see note 2)
Mac mini (Late 2009)	Oct 2009	10.6	-	10A432
Mac mini (Late 2009) with Mac OS X Server	Oct 2009	10.6 (Server)	-	10A433
Mac mini (Early 2009)	Mar 2009	10.5.6	10.6	9G2030, 10A432
Mac mini (Mid 2007)	Aug 2007	10.4.10	10.5, 10.5.2, 10.5.4	8R3014, 8R3050, 8R4088, 9A581, 9A3129, 9C3033, 9E25
Mac mini (Late 2006)	Sep 2006	10.4.7	10.4.8	8J2135, 8N1430
Mac mini (Early 2006)	Mar 2006	10.4.5	10.4.6	8H1619, 8I2025

Mac Pro	Date introduced	Original Mac OS X included (see notes 1 and 3)	Later Mac OS X included (see note 1)	Mac OS X Build(s) (see note 2)
Mac Pro (Early 2009)	Mar 2009	10.5.6	10.6	9G3553, 10A432
Mac Pro (Early 2008)	Jan 2008	10.5.1	10.5.2, 10.5.4	9B2117, 9C2031, 9E25
Mac Pro	Aug 2006	10.4.7	10.4.8, 10.4.9, 10.4.10, 10.5	8K1079, 8N1430, 8N1250, 8K1124, 8P4037, 8R3032, 8R3041, 9A581, 9A3129

MacBook	Date introduced	Original Mac OS X included (see notes 1 and 3)	Later Mac OS X included (see note 1)	Mac OS X Build(s) (see note 2)
MacBook (13-inch, Late 2009)	Oct 2009	10.6	-	10A2047
MacBook (13-inch, Mid 2009)	Jun 2009	10.5.6	10.6	9G2110, 10A432
MacBook (13-inch, Early 2009)	Jan 2009	10.5.6	-	9G2110
MacBook (13-inch, Aluminum, Late 2008)	Oct 2008	10.5.5	10.5.6	9F2088, 9F2533, 9G2133
MacBook (13-inch, Late 2008)	Oct 2008	10.5.4	-	9E27, 9E29
MacBook (13-inch Early 2008)	Feb 2008	10.5.2	10.5.4	9C2015, 9C2028, 9E25
MacBook (13-inch Late 2007)	Oct 2007	10.5	-	9A3111, 9A3115A
MacBook (13-inch Mid 2007)	May 2007	10.4.9	10.4.10	8P4112, 8R3025, 8R3032, 8R3050
MacBook (Late 2007)	Nov 2007	10.5	-	9A3110, 9A3111, 9A3115a
MacBook (Late 2006)	Nov 2006	10.4.8	-	8N1108, 8N1150, 8N1430
MacBook	May 2006	10.4.6	-	8I2025

MacBook Pro	Date introduced	Original Mac OS X included (see notes 1 and 3)	Later Mac OS X included (see note 1)	Mac OS X Build(s) (see note 2)
MacBook Pro (15-inch, Mid 2009)	Jun 2009	10.5.7	10.6	9J3050, 10A432
MacBook Pro (15-inch, 2.53 GHz, Mid 2009)	Jun 2009	10.5.7	10.6	9J3050, 10A432
MacBook Pro (17-inch, Mid 2009)	Jun 2009	10.5.7	10.6	9J3050, 10A432
MacBook Pro (13-inch, Mid 2009)	Jun 2009	10.5.7	10.6	9J3050, 10A432
MacBook Pro (17-inch, Early 2009)	Jan 2009	10.5.6	-	9G2141
MacBook Pro (17-inch, Late 2008)	Oct 2008	10.5.4	-	9E27
MacBook Pro (15-inch, Late 2008)	Oct 2008	10.5.5	10.5.6	9F2088, 9F2533, 9G2133
MacBook Pro (Early 2008)	Feb 2008	10.5.2	10.5.4	9C2018, 9C2028, 9E25
MacBook Pro (2.4/2.2 GHz)	Jun 2007	10.4.9	10.4.10, 10.5	8Q1058, 8R4049, 9A581, 9A3129
MacBook Pro (Core 2 Duo)	Oct 2006	10.4.8	-	8N1037, 8N1051, 8N1430
MacBook Pro (17-inch)	Apr 2006	10.4.6	-	8I2032
MacBook Pro	Feb 2006	10.4.5	10.4.6	8G1453, 8I1121

MacBook Air	Date introduced	Original Mac OS X included (see notes 1 and 3)	Later Mac OS X included (see note 1)	Mac OS X Build(s) (see note 2)
MacBook Air (Mid 2009)	Jun 2009	10.5.6	10.6	9G2152, 10A432
MacBook Air (Late 2008)	Nov 2008	10.5.5	10.5.6	9F2523, 9F2533, 9G2133
MacBook Air (Early 2008)	Jan 2008	10.5.1	10.5.2, 10.5.4	9B2324, 9C3033, 9E25

Xserve	Date introduced	Original Mac OS X Server included (see notes 1 and 3)	Later Mac OS X Server included (see note 1)	Mac OS X Build(s) (see note 2)
Xserve (Early 2009)	Apr 2009	10.5.6	10.6.1	9G4008, 10A2054
Xserve (Early 2008)	Jan 2008	10.5.1	10.5.4	9B2117, 9E26
Xserve (Late 2006)	Nov 2006	10.4.8	10.4.10	8N1215, 8R3031

Some computers shipped with different Mac OS X versions at different times. When a computer is not bundled with a later version, a "-" appears in the "Later Mac OS included" column.
The build information is available in the About This Mac window.
Some Macs may include a slightly later build version (but same numbered version) of Mac OS X on the Install or Restore discs than was preinstalled on the computer.

These articles may help you identify your computer.