To install copies of macOS without updated certificates, change the Mac's system clock to sometime prior to 24 October 2019date 1001000019
to set the date to midnight on 1 October 2019 . Press ⌘Q to quit Terminal and return to the installer.
Most downloads are a patch updater (upgrading directly from the previous version), or combo updater (upgrading from any earlier version in the same major release). To perform a clean installation of macOS, use a full release build.
Version | Build | Release Date | Download URL | SHA1 Hash | File Size | Documentation | Notes |
---|---|---|---|---|---|---|---|
10.15 | 19A583 | 7 October 2019 | ? | ? | ? | Security Notes | Initial release to the Mac App Store |
19A602 | 15 October 2019 | ? | ? | ? | Supplemental update release | ||
19A603 | 21 October 2019 | ? | ? | ? | Reissued supplemental update release | ||
10.15.1 | 19B88 | 29 October 2019 | macOSUpd10.15.1.dmg | 69560cf9196cc9d885bc21ea62cdd0745b14468f
|
4,528,032,956 | Release Notes Security Notes |
|
10.15.2 | 19C57 | 10 December 2019 | macOSUpd10.15.2.dmg macOSUpdCombo10.15.2.dmg |
d5e4e420e4a187920db37830053332b0805cf11d f33c39737ee63e2600bc4239d377382eb99d0ed8
|
3,041,652,339 4,594,197,852 |
Release Notes Security Notes |
|
19C58 | |||||||
10.15.3 | 19D76 | 28 January 2020 | macOSUpd10.15.3.dmg macOSUpdCombo10.15.3.dmg |
ebbbcab13e5435c2c5fc25bc09f8187c60bab1b2 a11c194e6ab958913866a2e7cd2f733c1ba36ab1
|
2,990,355,136 4,590,087,237 |
Release Notes Security Notes |
|
10.15.4 | 19E266 | 24 March 2020 | macOSUpd10.15.4.dmg macOSUpdCombo10.15.4.dmg |
212ea603c186f001b388b432a5e94a41546e99c0 d7764f5f920f7b235b5c19a89aa5a72aa2ab8de4
|
2,995,307,625 4,734,202,277 |
Release Notes Security Notes |
|
19E287 | 8 April 2020 | macOSUpd10.15.4Supplemental.dmg | 8d2223e580952164a087f4db2637323365e5a495
|
1,017,140,252 | |||
10.15.5 | 19F96 | 26 May 2020 | macOSUpd10.15.5.dmg macOSUpdCombo10.15.5.dmg |
373aa6e943faea26ee42113a57fda83d36ac26ab dd19f615be689fa35a9bd7256facd1a01f55839e
|
3,004,050,251 4,803,441,484 |
Release Notes Security Notes |
|
19F101 | 1 June 2020 | macOSUpd10.15.5Supplemental.dmg | b1c55e859837a1f5867b8b783c4caaba5c3d2f6e
|
1,204,968,101 | Security Notes | ||
10.15.6 | 19G73 | 15 July 2020 | macOSUpd10.15.6.dmg macOSUpdCombo10.15.6.dmg |
1a7f948f3229a620c8346e70bec2f6bd8e35df8f 4e7889f310415361d68f46bb9795f698a29f9266
|
2,997,134,218 4,823,622,242 |
Release Notes Security Notes |
|
19G2021 | 12 August 2020 | macOSUpd10.15.6Supplemental.dmg | 0fe45551c701d53237601f50c92d476d1ba8065d
|
2,823,838,090 | |||
10.15.7 | 19H2 | 24 September 2020 | macOSUpd10.15.7.dmg macOSUpdCombo10.15.7.dmg |
dc8577a98a4db78f8be0a9c336711e047c1aa01f 823e7636cb358daf6eff01ec8b4649a387e5acd5
|
2,859,603,750 4,823,637,251 |
Release Notes Security Notes |
|
19H4 | 27 October 2020 | ||||||
19H15 | 5 November 2020 | macOSUpd10.15.7Supplemental.dmg macOSUpd10.15.7.dmg |
23a740a2146e976a2bf7752195a4f744c40f9187 5e97455bd82981f0c64b9942715f786a07fb8fd4
|
1,222,040,585 2,859,666,257 |
Security Notes | ||
19H524 | 9 February 2021 | SecUpd2021-001Catalina.dmg | e7c45a499b742009e4cbf84ecb49efd1b32ea947
|
1,350,059,291 | Security Notes |