Releases of Mac OS X prior to Mavericks were paid upgrades. As such, full installers mostly do not exist for these versions. Apple made exceptions for Mac OS X Lion and OS X Mountain Lion, which were released as a free download on the Apple Support website on 2 July 2021[1][2]
. On 24 October 2019 and 10 February 2015 , in preparation for an Apple Software Update certificate expiring causing installer packages to display an integrity error and refuse to install, Apple reissued many updates, signed with a new certificate.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 | File Size | Documentation |
---|---|---|---|---|---|
10.5 | 9A581 | 26 October 2007 | Paid Release | — | — |
10.5.1 | 9B18 | 15 November 2007 | MacOSXUpd10.5.1.dmg | 114,459,529 | Release Notes [Archived 2014-04-05 at the Wayback Machine] Security Notes |
9B2117 | 14 December 2007 | ||||
10.5.2 | 9C31 | 11 February 2008 | MacOSXUpdCombo10.5.2.dmg | 360,076,996 | Release Notes [Archived 2014-04-05 at the Wayback Machine] Security Notes |
9C7010 | |||||
10.5.3 | 9D34 | 28 May 2008 | MacOSXUpd10.5.3.dmg MacOSXUpdCombo10.5.3.dmg |
436,573,815 556,552,675 |
Release Notes [Archived 2014-09-20 at the Wayback Machine] Security Notes |
10.5.4 | 9E17 | 30 June 2008 | MacOSXUpd10.5.4.dmg MacOSXUpdCombo10.5.4.dmg |
91,728,304 581,262,008 |
Release Notes [Archived 2014-10-12 at the Wayback Machine] Security Notes |
10.5.5 | 9F33 | 15 September 2008 | MacOSXUpd10.5.5.dmg MacOSXUpdCombo10.5.5.dmg |
332,284,765 630,282,703 |
Release Notes [Archived 2014-09-13 at the Wayback Machine] Security Notes [Archived 2014-07-15 at the Wayback Machine] |
10.5.6 | 9G55 | 15 December 2008 | MacOSXUpd10.5.6.dmg MacOSXUpdCombo10.5.6.dmg |
390,855,963 701,207,906 |
Release Notes [Archived 2014-10-10 at the Wayback Machine] Security Notes |
9G66 | 6 January 2009 | — | |||
9G71 | ? | ||||
10.5.7 | 9J61 | 12 May 2009 | MacOSXUpd10.5.7.dmg MacOSXUpdCombo10.5.7.dmg |
464,273,336 764,665,343 |
Release Notes [Archived 2014-09-13 at the Wayback Machine] Security Notes |
10.5.8 | 9L30 | 5 August 2009 | MacOSXUpd10.5.8.dmg MacOSXUpdCombo10.5.8.dmg |
288,209,534 797,335,709 |
Release Notes [Archived 2014-10-24 at the Wayback Machine] Security Notes |