How to upgrade to specific release on Mac OS X (e.g. 10.7.3)? I have an old iPhone application which was created using Xcode 4.3.2. I want to get it running on Xcode. However, I am using OS X 10.9.5. So I get the error "This installation of Xcode 4.3.2 requires Mac OS X Lion". So I searched online and found an article about running Xcode 4.3.2 on VirtualBox. Now when I try to install Xcode 4.3.2 on Lion on VirtualBox, I get the error message "You have Mac OS X 10.7. The application requires Mac OS X 10.7.3 or later. How can I upgrade to 10.7.3 to get Xcode working?
If you start from a base install - 10.n.0 then you can always directly update to a given 'point release' by using the Combo Updater for that release.

These appear to always remain available from Apple.

The Combo updater for 10.7.3 is at https://support.apple.com/kb/DL1484