see also:
[Mac OS X for PowerPC microprocessor][1]

## Learn more about the builds available for your Intel-based Mac.

[Mac OS X versions (builds) for computers][2]: Learn which Mac OS X versions (builds) originally shipped with or are available for your computer via retail discs, downloads, or Software Update.
[Finding the OS X version and build information on your Mac][3]: Learn how to locate the OS X version and build number on your Mac.
[Don't install a version of Mac OS X earlier than what came with your Mac][4]: This article explains why you should not install a version of Mac OS X earlier than that which came with your Mac. Exception to this rule are very rare and you should know exactly what you are doing!

## checking and verifying integrity of preserved software

[How to verify the authenticity of manually downloaded Apple software updates : If you manually download an update package for Mac, you can verify the signature to confirm that the package is authentic and complete.][5] (As of 'Last Modified: May 27, 2015', Apple Software Update Certificate Authority fingerprints are: `SHA1 FA 02 79 0F CE 9D 93 00 89 C8 C2 51 0B BC 50 B4 85 8E 6F BF`, `SHA1 9C 86 47 71 48 B3 D7 04 24 7A 3C 3F 56 EA 2D E5 94 4B 01 C2`.)

## OS X Internet Recovery

[Purchase][6]
This software is still available for purchase
OS X Internet Recovery

To start your computer from Internet Recovery, restart your Mac and
hold down the Command and Option and R keys at startup. Internet
Recovery is not perfect: it might 'quit unexpectedly', or you might
not allow your Mac to download installer disc image for hours or days.
It is just as important for the community to archive network-
distributed software, as it is important to archive software
distributed on physical media.

## [Mac OS X Snow Leopard][7]

### 10.6.3 build 10D575

Retail double-layer DVD-ROM.
Mfr. Part Number: MC573Z/A
UPC or EAN No.: 885909398751

oops: I recorded checksum of only Mac OS installer partition/slice,
not whole disc.
cksum, MD5, SHA-1
1206739518 7273689088 10D575.slice
65bc030e517acf59891d576c2bd2f9d6 10D575.slice
1b9e17d0a49531fa715f74086b6cf8824859661b 10D575.slice

### 10.6.5 MacBook Air Software Reinstall Drive

Retail 8GB USB
Model: A1384
Mfr. Part Number: 607-8240

OS X Install Disk:
Product ID: 0x1502
Vendor ID: 0x05ac (Apple Inc.)
Version: 11.00
Speed: Up to 480 Mb/sec
Manufacturer: APPLE
Location ID: 0x24100000 / 3
Current Available (mA): 500
Current Required (mA): 500
Capacity: 8.1 GB (8,103,395,328 bytes)
Removable Media: Yes
Detachable Drive: Yes
BSD Name: disk1
Partition Map Type: APM (Apple Partition Map)
S.M.A.R.T. status: Not Supported
Volumes:
disk1s1:
Capacity: 31 KB (30,720 bytes)
Media Type: Unknown
BSD Name: disk1s1
Content: Apple_partition_map
disk1s2:
Capacity: 2 KB (2,048 bytes)
Media Type: Unknown
BSD Name: disk1s2
Content: Apple_Driver_ATAPI
Mac OS X Install:
Capacity: 7.66 GB (7,657,377,792 bytes)
Available: 247.2 MB (247,214,080 bytes)
Media Type: Unknown
Writable: No
File System: HFS+
BSD Name: disk1s3
Mount Point: /Volumes/Mac OS X Install
Content: Apple_HFS
Volume UUID: 0414C394-BD3C-3741-A995-EFAB285CFC30

## Mac OS X Lion

### 10.7.5 build 11G63

[Download][8]

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.: D6106Z/A
cksum
3541820211 4719551306 11G63.InstallESD.dmg
907621833 5148295168 11G63.Install ESD.slice
4038206523 462662180 11G63.BaseSystem.dmg
4070237770 1392852992 11G63.Base System.slice
MD5
926186a27ff1a9770b9a291efbb7ff46 11G63.InstallESD.dmg
6c48da40d7fea2a9a819579102841e46 11G63.Install ESD.slice
4470c49ccd196cded2c541aa0d79561f 11G63.BaseSystem.dmg
005761023fe6c4854046805dce5b67f2 11G63.Base System.slice
SHA-1
[a044fc01fa75b1f255dbdd6ea4fefa30cef147b0][9] 11G63.InstallESD.dmg
6e2416419367df01064032daa27f9cdb0d7f7a01 11G63.Install ESD.slice
6d967f22dbe5f601a84631528b344f03ff9e0fa3 11G63.BaseSystem.dmg
3d61cc7e13d3fb5bc84fcfebfa9892cacd07d834 11G63.Base System.slice
SHA-512
[a54fd09862d8d8e6834cfe05ca73c3eaace9515fe65150d97d27288a6658ad9ac9af6de920a85d16f7288de36f122e0cb718a2b3e11fab09eb0099bf3b465cc2][10]
11G63.InstallESD.dmg
391e0693b421432cd708762b160e6eb7c8170ab66c0b8c33beced54b7987df1f6404718499c65843554ccd698faee725a8063a316ca5fce2296651dd61d596dd
11G63.Install ESD.slice
6681a01c9f93b338e94afe76ad3e21772b9a6cb6c542cca0c2342cc0bb6b13a293bc621bfdd3745c9c26f46f5d909583e2032c3b9f3c578ece29de86952d6a02
11G63.BaseSystem.dmg
434fbdbcdf8fc65414728f95434c01d2061fe3ad2cd6f93797f127fbd702992630c167c18de72172a5094f2b5e39040d4c769ab447901055eee1350e756c422f
11G63.Base System.slice

## OS X Mountain Lion

### 10.8.5 build 12F45

[Download][11]

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.: 885909922338
cksum
3341879902 4434015077 12F45.InstallESD.dmg
522434411 4856860672 12F45.Install ESD.slice
2644486267 457741857 12F45.BaseSystem.dmg
767528597 1193177088 12F45.Base System.slice
MD5
69fa8dbbc2aa6668534cc863ac9b9f28 12F45.InstallESD.dmg
b39e0994dbaee4612bc1774f217af814 12F45.Install ESD.slice
99928482cd761e961962e5c3c4755e2f 12F45.BaseSystem.dmg
2963b3f1b46332b3b3b6a9dd8f2f2f7c 12F45.Base System.slice
SHA-1
[b8fa63882f06b52eb73f6ecc6661858de32e70e9][12] 12F45.InstallESD.dmg
5255feabff1564dd33a8ef675ae3d4f257e9172b 12F45.Install ESD.slice
868f3dec3072fa07fe1e229bc2786321da7ca813 12F45.BaseSystem.dmg
1ad9d3a15b27a12c3e5694d4d720d97bddced5c5 12F45.Base System.slice

## OS X Mavericks

### 10.9.5 build 13F34

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:
cksum
2951846513 5318660434 13F34.InstallESD.dmg
2099180883 5465933824 13F34.Install ESD.slice
250014938 [493349624][13] 13F34.BaseSystem.dmg
2759811187 1281081344 13F34.Base System.slice
MD5
763e96e1821f7afae1ec653e87a1c400 13F34.InstallESD.dmg
e6fe77d4757df33b740b6a48be390645 13F34.Install ESD.slice
[138f05a8f6a1c2e920893f765945c6f0][13] 13F34.BaseSystem.dmg
efc92960fc6e38a4e83c8cca75f731e3 13F34.Base System.slice
SHA-1
[59124140b092e5a2c99f1484100bf8d404408681][14] 13F34.InstallESD.dmg
03bacfdb04046ef058d89f8d3a064924436fb659 13F34.Install ESD.slice
60cfa5b0dc148950d295206fb4e730cf0f1afd94 13F34.BaseSystem.dmg
4864bead2cb6d02531dcf88224f2b5e7694661ba 13F34.Base System.slice

## OS X Yosemite

[Purchase][15]
"Item Not Available The item you've requested is not currently
available in the U.S. store." (as of 2016-09-20)
Mac App Store (U.S.)

### 10.10.2 build 14C109

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:
cksum
1655194890 5176879260 14C109.InstallESD.dmg
1313106626 5680836608 14C109.Install ESD.slice
9958120 488011166 14C109.BaseSystem.dmg
3574995146 1288699904 14C109.Base System.slice
MD5
[61b0753bd885e20d5edf1d6865b1f9c3][16] 14C109.InstallESD.dmg
d7f59d95798f4a29ad4632c870e76690 14C109.Install ESD.slice
dab66f0dfc772ee60764796f1e7748a1 14C109.BaseSystem.dmg
417df63a0a9a2fcc45a91983e54a36e2 14C109.Base System.slice
SHA-1
[059f2603a91465bcee24c864d446da30df920f85][17] 14C109.InstallESD.dmg
099253d5061f30592c4366c2b11a3443e7a2b204 14C109.Install ESD.slice
1842a56979466907fa7f245b4b779e630b8a0397 14C109.BaseSystem.dmg
bd87bae60b084caaee030a2a4cd3be4a368c1041 14C109.Base System.slice

### 10.10.3 build 14D131

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:
cksum
727581372 5637551188 InstallESD.dmg
MD5
b3b3e1df1a4d68c74401877ba51caa2a InstallESD.dmg
SHA-1
dc4d4d0a7cd4aea4514025d23a58d05107369fa9 InstallESD.dmg

### 10.10.4 build 14E46

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:
cksum
995357230 5668704673 InstallESD.dmg
MD5
[700c81ef2c851b29e4d6a57504f9597b][18] InstallESD.dmg
SHA-1
a8da3a4f4499c68559a2bad4ce232f2443a333ca InstallESD.dmg

### 10.10.5 build 14F27

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:
cksum
3167239193 5718940459 InstallESD.dmg
MD5
ff4850735fa0a0a1d706edd21f133ef2 InstallESD.dmg
SHA-1
[ef5cc8851b893dbe4bc9a5cf5c648c10450af6bc][19] InstallESD.dmg

## OS X El Capitan

[Purchase][20]
"Item Not Available The item you've requested is not currently
available in the U.S. store." (as of 2016-09-20)
Mac App Store (U.S.)

[Purchase][21]
Retrieved from: <https://support.apple.com/en-us/HT206886>
Mac App Store (U.S.)

### 10.11.2 build 15C50 original release

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:

cksum
1549767994 6195735337 15C50.InstallESD.dmg
1177033697 6454239232 15C50.Install ESD.slice
374895373 475774193 15C50.BaseSystem.dmg
4117803836 2011598848 15C50.Base System.slice
2411725886 2090275 15C50.AppleDiagnostics.dmg
1000053998 145346560 15C50.AppleDiagnostics.slice
MD5
[a87d84763cb15c09ded01fa123aeb9d0][22] 15C50.InstallESD.dmg
e1ad4d5379b170fa33b815198ed66f35 15C50.Install ESD.slice
fa7e60c944cf8d4b001a42fd74d639c9 15C50.BaseSystem.dmg
04312d06517419bb83108d0ba7660d7d 15C50.Base System.slice
9f7abc1f9eaf3326639140e3a780f58f 15C50.AppleDiagnostics.dmg
fdf9bc2383bdd8b37d0ead4af99cec31 15C50.AppleDiagnostics.slice
SHA-1
[2b11b8b618a2e5100507c3c432363081db65c4c8][23] 15C50.InstallESD.dmg
4b529213cf0e8c59b3d9e74fe462d7fa601c1d5a 15C50.Install ESD.slice
1051b398f652c093f54e8a473eca68ac7da5b053 15C50.BaseSystem.dmg
bcbe0d388123d8a095353ffb465c4bb0e33fec54 15C50.Base System.slice
af54da54c1f2a047f7b1d6f188a5c3d42a36b64c 15C50.AppleDiagnostics.dmg
051b0c14e3fc3a3135c70f0d093d19bc0d0b640f 15C50.AppleDiagnostics.slice
SHA-256
dfcc8bdd0f8d20bbc9cfa3fdfe12be35a413fbec5881093a10a87931698d97e3
15C50.Install ESD.slice

### 10.11.2 build 15C50 later distribution

This sample acquired 2016-09-02, Apple distributes a different disc
image container (InstallESD.dmg) with substantially same content (GPT
part - "disk image" , "OS X Install ESD" filesystem) as initial
release.

cksum
2679622478 6195735465 15C50.InstallESD.dmg
MD5
674fc7c7914946d25627ea7cd5cf1f93 15C50.InstallESD.dmg
SHA-1
e5365591f0996809a666d5af24617a4160ce04ed 15C50.InstallESD.dmg
SHA-256
b66c81ab7be839a0d8c80d807f59660a9223b5fa33fdab29ef237a7266351685
15C50.InstallESD.dmg

### 10.11.4 build 15E65

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:
cksum
1855349154 6201043889 15E65.InstallESD.dmg
1019021097 6717906944 15E65.Install ESD.slice
1198668696 477579745 15E65.BaseSystem.dmg
2618602375 2011045888 15E65.Base System.slice
4285151524 2157525 15E65.AppleDiagnostics.dmg
1460191612 140312576 15E65.AppleDiagnostics.slice

MD5
1a36088e63612b79a645ec2cff474c5a 15E65.InstallESD.dmg
7bf8c9d943df04589ac8780df1152bfe 15E65.Install ESD.slice

SHA-1
f6292573395b46e8110be6077fd4827409bc948b 15E65.InstallESD.dmg
e77444aa3aa1f41d094042b2095d7113ba7251bf 15E65.Install ESD.slice

SHA-256
[532830b2a04b6f496b1cc1b18cc1645d1cda34151c212b68133f41c19d1431ed][24]
15E65.InstallESD.dmg
5b2a335a3afdd037272a5011e2007db89489e3a0ce1f816668a20579409b9694
15E65.Install ESD.slice

### 10.11.5 build 15F34

UDIF read-only compressed (zlib) UDZO.
UPC or EAN No.:
cksum
3666516750 6211726289 15F34.InstallESD.dmg
1635418318 6885478400 15F34.Install ESD.slice
29802776 477739807 15F34.BaseSystem.dmg
2189145693 2013208576 15F34.Base System.slice
4285151524 2157525 15F34.AppleDiagnostics.dmg
1460191612 140312576 15F34.AppleDiagnostics.slice

MD5
5741cc867e6d99f44192655e5b1e6439 15F34.InstallESD.dmg
0c0e3e889973f41706df13239f377c4c 15F34.Install ESD.slice

SHA-1
850781fe8cb5d88c5d1bc23e704e6686ff1fcc2f 15F34.InstallESD.dmg
cf5b285b04b8272dcf0898a5e56f1a5da5a45eaa 15F34.Install ESD.slice

SHA-256
8be0c4144d79dc0ef275d6bea60db4d23ccf83b22b6c22a99ff35261862b0758
15F34.InstallESD.dmg
eda9860bcc6a1bd086387dfcdb419e31c1e3eba847e71d6f9ba519479c87cde9
15F34.Install ESD.slice

### 10.11.6 build 15G31 original release

This sample acquired 2016-07-20. UDIF read-only compressed (zlib)
UDZO.
cksum
3473505443 6212262837 15G31.InstallESD.dmg
1158315690 6475223040 15G31.Install ESD.slice
357689217 477640174 15G31.BaseSystem.dmg
2028613267 2011004928 15G31.Base System.slice
4285151524 2157525 15G31.AppleDiagnostics.dmg
1460191612 140312576 15G31.AppleDiagnostics.slice

MD5
06f6e4a7b1996c542cbda28eb5f7a8f2 15G31.InstallESD.dmg
6f244bfcfd391d5b99a9b5feffa369cd 15G31.Install ESD.slice

SHA-1
7739e3f62080000da5d28efa689c53976112a262 15G31.InstallESD.dmg
f0c3c4f7823ff63a308d0539419c9913e6b222f6 15G31.Install ESD.slice

SHA-256
0b8156957236865e170bc7784bf067ba8b5b231ad8ce45790865e16c9c653615
15G31.InstallESD.dmg
7be82567e8c14bdec0537fe96633e4b650e47c52f2acff6937f9ed6db42bd034
15G31.Install ESD.slice

### 10.11.6 build 15G31 later distribution

This sample acquired 2016-11-15, Apple distributes a disc image which
is substantially different than initial release. Packages
(BaseSystemResources.pkg Essentials.pkg OSInstall.mpkg OSInstall.pkg
OSUpgrade.pkg X11redirect.pkg) differ. Everything else (BaseSystem.dmg
AppleDiagnostics.dmg EFIPayloads SMCPayloads
InstallableMachines.plist) are identical. Bizarrely, 'OSInstall.mpkg
can't be installed because its digital signature is invalid.', while
other packages signature fingerprint is '`SHA1 FA 02 79 0F CE 9D 93 00
89 C8 C2 51 0B BC 50 B4 85 8E 6F BF`'.
cksum
2212132222 6206829859 15G31.InstallESD.dmg
2549869861 6473576448 15G31.Install ESD.slice
MD5
4f5ec0665edc79c1cb8fbf25907623d8 15G31.InstallESD.dmg
c45c261fdaae1c99624759852858e7f8 15G31.Install ESD.slice
SHA-1
7849c9f62fb5b5d336d94aa6eccf9283831e0b5c 15G31.InstallESD.dmg
35a9d8702a539e68fea0c0f5bf344e4339589a64 15G31.Install ESD.slice
SHA-256
36d6532cc34cc6e35de896ee5d0e7ce277e247429ff4e38c32e3b033f053b5ab
15G31.InstallESD.dmg
2c756936b59a1de243bd6aeca4f7b97ea3c4ce2762abc8f17a6de124513d034a
15G31.Install ESD.slice

## Mac OS X 10.12

Though branded 'macOS Sierra', SystemVersion.plist holds 'ProductName'
'Mac OS X' 'ProductUserVisibleVersion' '10.12'.

[Purchase][25]
"Item Not Available The item you've requested is not currently
available in the U.S. store." (as of 2017-12-05)
Mac App Store (U.S.)

[Purchase][26]
Retrieved from: <https://support.apple.com/en-us/HT208202>
Mac App Store (U.S.)

### 10.12 build 16A323

This sample acquired 2016-09-21. UDIF read-only compressed (zlib)
UDZO. Packages (Essentials.pkg OSInstall.mpkg OSInstall.pkg) signature
fingerprint is '`SHA1 FA 02 79 0F CE 9D 93 00 89 C8 C2 51 0B BC 50 B4
85 8E 6F BF`'.

cksum
3238264412 4765087512 16A323.InstallESD.dmg
3851109848 5027921920 16A323.Install ESD.slice
1710452534 485072953 16A323.BaseSystem.dmg
432407178 2009292800 16A323.Base System.slice
1498062104 2341844 16A323.AppleDiagnostics.dmg
502600962 145125376 16A323.AppleDiagnostics.slice

MD5
98eb1328baa53f5b1e8445c869fcbb3a 16A323.InstallESD.dmg
63880614968861bd1e3fbe6e0c82c545 16A323.Install ESD.slice

SHA-1
139ef35e4af0da8286b2a3af326cb114d774f606 16A323.InstallESD.dmg
fcd37270bc50b90299dfc2ac1253809f787ef7a2 16A323.Install ESD.slice

SHA-256
[78a2701bb63a0dcb30862314d1a4598522cfe6a2dd2b096a4e30f256909a4446][27]
16A323.InstallESD.dmg
645f843db3edf941c9c55f402a80d235583b10226eb835f3dfdcf6cf9f47e2c0
16A323.Install ESD.slice

### 10.12.1 build 16B2657

This sample acquired 2016-11-15. UDIF read-only compressed (zlib)
UDZO. Packages (BaseSystemResources.pkg Essentials.pkg OSInstall.mpkg
OSInstall.pkg) signature fingerprint is '`SHA1 FA 02 79 0F CE 9D 93 00
89 C8 C2 51 0B BC 50 B4 85 8E 6F BF`'.

cksum
2487845618 4883597118 16B2657.InstallESD.dmg
793706371 5414420480 16B2657.Install ESD.slice
2809318545 487223180 16B2657.BaseSystem.dmg
4283918742 2013057024 16B2657.Base System.slice
1789019352 2413541 16B2657.AppleDiagnostics.dmg
1713974791 140124160 16B2657.AppleDiagnostics.slice

MD5
42856038d3089e36c37bb9a3de9b60dd 16B2657.InstallESD.dmg
307543a5a4a0106325a3c219137ffc43 16B2657.Install ESD.slice
a8897cae690d2e1c868fbb0e439bc9cc 16B2657.BaseSystem.dmg
5ffe9a1813d7e78202f66845be74b2bc 16B2657.Base System.slice
b06ea27b481ded19e46f6299a4bd6be3 16B2657.AppleDiagnostics.dmg
15e70f134ac3986d0e3b992c3a61f816 16B2657.AppleDiagnostics.slice

SHA-1
e559e142a4c9ebaaa740c575d5c3c23c6eb3fb06 16B2657.InstallESD.dmg
892d0b1c551aa14b7b76aef44cea812577f16117 16B2657.Install ESD.slice
ca51d6e3a27ed712a7f330c5ad84172a5493b803 16B2657.BaseSystem.dmg
6798ebeecfaa45df8641fb4ef50e1a9947667c77 16B2657.Base System.slice
0e435a22cedd6a920b07dba15c3bbd2b68722be4 16B2657.AppleDiagnostics.dmg
9f6ded048e95d3a9a2c6dee4db891e37ad7f09d9
16B2657.AppleDiagnostics.slice

SHA-256
[8608c0cebf689431ad35d37bcb0035aac266c78f95e7e2a3fd8104d153a24e9b][28]
16B2657.InstallESD.dmg
adddabd5655385e036cd5a6bfa60f48285e9d32f71efe84afc6f530c1d20db27
16B2657.Install ESD.slice
205e341de099f2e515390ba9325e3fe046a74dd5dd2256bcdac5920a51019f77
16B2657.BaseSystem.dmg
f390cb76a4a883df2e3740b844e987a475e97e2992a9dbdfdb5852396201df9f
16B2657.Base System.slice
0fdcff0a7636085a80dda7497d4a5539fdecb78f3b3707e8422204ec682bd341
16B2657.AppleDiagnostics.dmg
3a4fa3f272b2d8bc7d0cd7062a6d684c13b9b391fbe9efba122664105d6f002a
16B2657.AppleDiagnostics.slice

### 10.12.2 build 16C67

This sample acquired 2016-12-13. UDIF read-only compressed (zlib)
UDZO. Packages (BaseSystemResources.pkg EmbeddedOSFirmware.pkg
Essentials.pkg FirmwareUpdate.pkg OSInstall.mpkg OSInstall.pkg)
signature fingerprint is '`SHA1 FA 02 79 0F CE 9D 93 00 89 C8 C2 51 0B
BC 50 B4 85 8E 6F BF`'. AppleDiagnostics.dmg is identical to that in
10.12.1 build 16B2657.

cksum
1226243967 4951607052 16C67.InstallESD.dmg
3299567570 5481664512 16C67.Install ESD.slice
1412026611 489342553 16C67.BaseSystem.dmg
2881208651 1997578240 16C67.Base System.slice
2077692771 59293017 EmbeddedOSFirmware.pkg
4271795199 155024800 FirmwareUpdate.pkg
2171515237 2813 InstallableMachines.plist

MD5
43aa19eee715f0aac08cb6783fc35cab 16C67.InstallESD.dmg
2ec34e294d6ecf7edb3be843679f287b 16C67.Install ESD.slice

SHA-1
1432e3be6222c434b536721076ed8b16b1c6050e 16C67.InstallESD.dmg
b3892365df368c064cb5113dbbf582593d862c5d 16C67.Install ESD.slice

SHA-256
6c2b16f248407a3853a9c4a63efadc94813321708f5eed5c09b73f33e5edd855
16C67.InstallESD.dmg
93a2abe34eb5adb276070e9ec92fca15bb2e79f3ee24943ffd4250d9fc316ba7
16C67.Install ESD.slice

### 10.12.3 build 16D32

This sample acquired 2017-01-23. UDIF read-only compressed (zlib)
UDZO. Packages (BaseSystemResources.pkg EmbeddedOSFirmware.pkg
Essentials.pkg FirmwareUpdate.pkg OSInstall.mpkg OSInstall.pkg)
signature fingerprint is '`SHA1 FA 02 79 0F CE 9D 93 00 89 C8 C2 51 0B
BC 50 B4 85 8E 6F BF`'. AppleDiagnostics.dmg is identical to that in
10.12.1 build 16B2657.

cksum
625129732 4950497037 16D32.InstallESD.dmg
428120140 5481558016 16D32.Install ESD.slice
1368434862 489299405 16D32.BaseSystem.dmg
2855479258 2011025408 16D32.Base System.slice
789691518 59293022 EmbeddedOSFirmware.pkg
4010461835 155004328 FirmwareUpdate.pkg
2171515237 2813 InstallableMachines.plist

MD5
6e8131542352bb5417e3a2809051ccb7 16D32.InstallESD.dmg
9b3eb1c3af7bf7936acf21dfa479365b 16D32.Install ESD.slice
60e678bf783558d75843331d738ff9ed 16D32.BaseSystem.dmg
e7714c191495a2678ddabf345449e2bb 16D32.Base System.slice

SHA-1
77d354ec06df0d0acc37c105ae524ba96948142b 16D32.InstallESD.dmg
2432667d2e175139207068fcefb88e4eef8ea732 16D32.Install ESD.slice
207a47927fac29f858933e27b4e440654177e379 16D32.BaseSystem.dmg
ec963de49e0d832a585a7b565609da2fdd62c390 16D32.Base System.slice

SHA-256
75a288fe6efc0591f757baf08305270f1b843b54cfb66fe6b257049400a0d6e9
16D32.InstallESD.dmg
e045950f0aeb7d251799dd1a4ae02b019b717ea31cc958fcd541875b5cec9824
16D32.Install ESD.slice
4b9e720bd8b290fad07c4fa7acf720b9a4a5af60f7f6458ed72eb1ae8833afa6
16D32.BaseSystem.dmg
2cbee413986b43e2709c6ffabce377e0ee06e7dba49cb77aaef3ecf4dd9decab
16D32.Base System.slice

### 10.12.4 build 16E195

This sample acquired 2017-04-27. UDIF read-only compressed (zlib)
UDZO. Packages (BaseSystemResources.pkg EmbeddedOSFirmware.pkg
Essentials.pkg FirmwareUpdate.pkg OSInstall.mpkg OSInstall.pkg)
signature fingerprint is '`SHA1 FA 02 79 0F CE 9D 93 00 89 C8 C2 51 0B
BC 50 B4 85 8E 6F BF`'. AppleDiagnostics.dmg is identical to that in
10.12.1 build 16B2657.

cksum
3081523871 4946110221 16E195.InstallESD.dmg
2175562819 5476450304 16E195.Install ESD.slice
1829478961 478145382 16E195.BaseSystem.dmg
1670249474 1997787136 16E195.Base System.slice
2507147181 59288919 16E195.EmbeddedOSFirmware.pkg
77725202 161668511 16E195.FirmwareUpdate.pkg

SHA-256
30319aeae18c3277919c59fe678201553f5a11022d6966b67a43422996391181
16E195.InstallESD.dmg
866c1efc150c365c66a2b526d96b00f7a892b36f3e5994a4e4993289b14c5b37
16E195.Install ESD.slice
8ecca10b2531227f9b9dde02be313657e14d66db47bcadaae9d1043c49001e66
16E195.BaseSystem.dmg
c8255209453eddca1af24fd7e04fb045d70fa815e4b953c7f029503cbb493072
16E195.Base System.slice

## Mac OS X 10.13

Though branded 'macOS High Sierra', SystemVersion.plist holds
'ProductName' 'Mac OS X' 'ProductUserVisibleVersion' '10.13'.

[Purchase][29]
This software is still available for purchase
Mac App Store (U.S.)

[Purchase][30]
Retrieved from: <https://support.apple.com/en-us/HT208969>
Mac App Store (U.S.)

### 10.13.2 build 17C88

This sample acquired 2017-12-05. Packages (InstallESDDmg.pkg
BridgeOSBrain.pkg BridgeOSUpdateCustomer.pkg Core.pkg
EmbeddedOSFirmware.pkg FirmwareUpdate.pkg OSInstall.mpkg) signature
fingerprint is '`SHA-256 AE 4B A7 57 65 A2 D9 1A 9F 86 6E E1 2A B1 53
F8 75 9B C1 D1 29 46 0E 7D B5 FF 45 FC 98 6F 98 7A`' '`SHA-1 FA 02 79
0F CE 9D 93 00 89 C8 C2 51 0B BC 50 B4 85 8E 6F BF`'.

cksum
221278160 4706541399 17C88.InstallESDDmg.pkg
1997161785 4706532872 17C88.InstallESD.dmg
390186964 8939180032 17C88.InstallESD.slice
1057190632 478740408 17C88.BaseSystem.dmg
1410650120 2013097984 17C88.Base System.slice
952255809 2613173 17C88.AppleDiagnostics.dmg
2313042838 127631360 17C88.AppleDiagnostics.slice
1413421812 11596 17C88.BridgeOSBrain.pkg
1718293438 11596 17C88.BridgeOSUpdateCustomer.pkg
353430251 4444474799 17C88.Core.pkg
2534575718 59301202 17C88.EmbeddedOSFirmware.pkg
1382894030 202620133 17C88.FirmwareUpdate.pkg
69161412 678231 17C88.OSInstall.mpkg

SHA-256
a016570e65a70e23462efdddd845d3a1a5a7cc39aa770a0052af16e3d5f2ac4f
17C88.InstallESDDmg.pkg
4490bd868b3f7bbc0692eacf0723914d474970d2e2a309d7728236f15fd64c72
17C88.InstallESD.dmg
c3228e7d9760ef59fa322ede14c4ffbc18ca9120350b3736ae2a71b7dd945902
17C88.InstallESD.slice
f10436de7929a4a9f639987fc394ac8ec4de2e44c0aaa7102dc922ce058db2b3
17C88.BaseSystem.dmg
836a4c73aa6048c3dfcbc14610d769c7c63a5311a8e90b002d9f4329bcab6cb3
17C88.Base System.slice
8f78bb655d25064c8e9a1f588075398a0d90daeecfc9e83b0e1ed890bec6c5bc
17C88.AppleDiagnostics.dmg
c6e42676415d8f1a2dd1574ca1c15aff6886d205f5edfeb68378f416406f9850
17C88.AppleDiagnostics.slice

Compatibility
Architecture: x86 (Intel:Mac)

  [1]: http://macintoshgarden.org/apps/mac-osx-mac-os-10-ppc
  [2]: http://support.apple.com/en-us/HT1159
  [3]: http://support.apple.com/en-us/HT201260
  [4]: http://support.apple.com/en-us/HT201686
  [5]: https://support.apple.com/en-us/HT202369
  [6]: http://support.apple.com/en-us/HT4718
  [7]: http://macintoshgarden.org/apps/apple-osx-snow-leopard
  [8]: https://support.apple.com/en-us/106383
  [9]: https://discussions.apple.com/thread/3191335
  [10]: http://forums.macrumors.com/showthread.php?t=1491441
  [11]: https://support.apple.com/en-us/106387
  [12]: http://g2ex.blogspot.com/2014/10/VMware-Workstation-10-Install-Mac-OS-X-Mountain-Lion-10-8-5.html
  [13]: http://en.osdn.jp/projects/sfnet_gnuhub/downloads/BaseSystem10.9.dmg/#download-misc-info
  [14]: https://discussions.apple.com/thread/7589598
  [15]: https://itunes.apple.com/us/app/os-x-yosemite/id915041082
  [16]: http://forums.mydigitallife.info/threads/45579-OSX-full-installer-hash/page2?p=1000796#post1000796
  [17]: https://youadmin.wordpress.com/2014/10/17/prufsummen-mac-os-x-betriebssysteme/
  [18]: http://www.insanelymac.com/forum/topic/306881-10104-final-is-out/page-2#entry2150248
  [19]: http://apple.stackexchange.com/questions/151137/how-to-get-osx-yosemite-outside-the-mac-app-store#comment241288_151192
  [20]: https://itunes.apple.com/us/app/os-x-el-capitan/id1018109117
  [21]: https://itunes.apple.com/app/os-x-el-capitan/id1147835434?ls=1&mt=12
  [22]: http://wecydia.com/forum.php?mod=viewthread&tid=10139696
  [23]: http://www.insanelymac.com/forum/topic/309773-sha1-10112/
  [24]: https://github.com/drduh/OS-X-Security-and-Privacy-Guide/blob/master/InstallESD_Hashes.csv
  [25]: https://itunes.apple.com/us/app/macos-sierra/id1127487414
  [26]: https://itunes.apple.com/us/app/macos-sierra/id1127487414?ls=1&mt=12
  [27]: http://apple.stackexchange.com/questions/253742/sha2-checksum-for-sierras-installesd-dmg
  [28]: http://blog.csdn.net/afatgoat/article/details/50559005
  [29]: https://itunes.apple.com/us/app/macos-high-sierra/id1246284741
  [30]: https://itunes.apple.com/us/app/macos-high-sierra/id1246284741?ls=1&mt=12

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