Update Published June 12, 2026
Other Max Mac OS Categories: Apple Silicon Macs | Intel Macs | PowerPC Macs
The maximum version of Mac OS -- originally called simply "System" -- officially supported by each 68k Macintosh (1984-1996) is listed below.
Maximum supported operating systems range from System 3.2 in 1986 through Mac OS 8.1 in 1997 with many other versions in between. No 68k Macs support a modern version of the macOS.
Click a specific Mac for complete operating system details as well as specs, identifiers, and more. For all Macs that are compatible with a specifc maximum supported version of a Mac operating system -- courtesy of EveryMac.com's Ultimate Mac Sort -- click the OS of interest.
Not sure which Mac you need to locate? Look it up with EveryMac.com's Ultimate Mac Lookup. For help, please refer to Mac Identification.
1
68k Macs
Max Supported Mac OS
1
Macintosh Centris 610
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Centris 650
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Centris 660AV
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Original (128k)
0.97-3.2
1
Macintosh 512k
1.0-4.1
1
Macintosh 512ke (ED)
1.0-6.0.8
1
Macintosh XL
MacWorks*
1
Macintosh Plus (ED)
3.0-6.0.8, 7.0-7.5.1, 7.5.3-7.5.5
1
Macintosh SE
3.3-7.5.1, 7.5.3-7.5.5
1
Macintosh SE FDHD
3.3-7.5.1, 7.5.3-7.5.5
1
Macintosh SE/30
6.0.3-7.5.1, 7.5.3-7.5.5
1
Macintosh Classic
6.0.7-7.5.1, 7.5.3-7.5.5
1
Macintosh Classic II
7.0.1-7.5.1, 7.5.3-7.6.1
1
Macintosh Color Classic
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh Color Classic II
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh TV
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh II (Original)
2.0-7.5.1, 7.5.3-7.5.5
1
Macintosh IIx
6.0.1-7.5.1, 7.5.3-7.5.5
1
Macintosh IIcx
6.0.3-7.5.1, 7.5.3-7.5.5
1
Macintosh IIci
6.0.4-7.5.1, 7.5.3-7.6.1
1
Macintosh IIfx
6.0.5-7.5.1, 7.5.3-7.6.1
1
Macintosh IIsi
6.0.7-7.5.1, 7.5.3-7.6.1
1
Macintosh IIvi
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh IIvx
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh LC (Original)
6.0.7-7.5.1, 7.5.3-7.5.5
1
Macintosh LC II
6.0.8-7.5.1, 7.5.3-7.6.1
1
Macintosh LC III
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh LC III+
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh LC 475
7.1-7.5.1, 7.5.3-8.1
1
Macintosh LC 520
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh LC 550
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh LC 575
7.1-7.5.1, 7.5.3-8.1
1
Macintosh LC 580
7.5, 7.5.1, 7.5.3-8.1
1
Macintosh LC 630 (PC)
7.1.2P-7.5.1, 7.5.3-8.1
1
Macintosh Performa 200
7.0.1-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 250
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 275
7.1-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 400
7.0P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 405
7.0P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 410
7.0P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 430
7.0P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 450
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 460
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 466
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 467
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 475
7.1P3-7.5.1, 7.5.3-8.1
1
Macintosh Performa 476
7.1P3-7.5.1, 7.5.3-8.1
1
Macintosh Performa 520
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 550
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 560
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 575
7.1P6-7.5.1, 7.5.3-8.1
1
Macintosh Performa 577
7.1P6-7.5.1, 7.5.3-8.1
1
Macintosh Performa 578
7.1P6-7.5.1, 7.5.3-8.1
1
Macintosh Performa 580CD
7.5, 7.5.1, 7.5.3-8.1
1
Macintosh Performa 588CD
7.5, 7.5.1, 7.5.3-8.1
1
Macintosh Performa 600 (CD)
7.1P-7.5.1, 7.5.3-7.6.1
1
Macintosh Performa 630 (CD) (PC)
7.1.2P-7.5.1, 7.5.3-8.1
1
Macintosh Performa 631CD
7.5.1, 7.5.3-8.1
1
Macintosh Performa 635CD
7.1.2P-7.5.1, 7.5.3-8.1
1
Macintosh Performa 636 (CD)
7.1.2P-7.5.1, 7.5.3-8.1
1
Macintosh Performa 637CD
7.1.2P-7.5.1, 7.5.3-8.1
1
Macintosh Performa 638CD
7.1.2P-7.5.1, 7.5.3-8.1
1
Macintosh Performa 640CD (PC)
7.5.1, 7.5.3-8.1
1
Macintosh Quadra 605
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 610 (PC)
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 630
7.1.2P-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 650
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 660AV
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 700
7.0.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 800
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 840AV
7.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 900
7.0.1-7.5.1, 7.5.3-8.1
1
Macintosh Quadra 950
7.0.1-7.5.1, 7.5.3-8.1
1
Macintosh WGS 60
7.1-7.5.1, 7.5.3-8.1
1
Macintosh WGS 80
7.1-7.5.1, 7.5.3-8.1
1
Macintosh WGS 95
A/UX 3.1.1*
1
PowerBook Duo 210
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook Duo 230
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook Duo 250
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook Duo 270c
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook Duo 280
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook Duo 280c
7.1-7.5.1, 7.5.3-7.6.1
1
Portable (Original)
6.0.4-7.5.1, 7.5.3-7.5.5
1
Portable Backlit
6.0.8-7.5.1, 7.5.3-7.5.5
1
PowerBook 100
7.0.1-7.5.1, 7.5.3-7.5.5
1
PowerBook 140
7.0.1-7.5.1, 7.5.3-7.5.5
1
PowerBook 145
7.0.1-7.5.1, 7.5.3-7.5.5
1
PowerBook 145b
7.1-7.5.1, 7.5.3-7.5.5
1
PowerBook 150
7.1.1-7.5.1, 7.5.3-7.6.1
1
PowerBook 160
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook 165
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook 165c
7.1-7.5.1, 7.5.3-7.6.1
1
PowerBook 170
7.0.1-7.5.1, 7.5.3-7.5.5
1
PowerBook 180
7.1-7.5.1, 7.5.3-7.5.5
1
PowerBook 180c
7.1-7.5.1, 7.5.3-7.5.5
1
PowerBook 190/66
7.5.2-8.1
1
PowerBook 190cs/66
7.5.2-8.1
1
PowerBook 520
7.1.1-8.1
1
PowerBook 520c
7.1.1-8.1
1
PowerBook 540
7.1.1-8.1
1
PowerBook 540c
7.1.1-8.1
1
PowerBook 550c
7.1.1-8.1
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