Logic Pro 9.1.1 through 9.1.6 updates
Click on the below links to download Logic Pro 9.1.1 to 9.1.6 updates:
Note: These installers have expired certificates. When opened you will see the following:
For OS X Lion and later users, you can click "Continue" and proceed with the update.
For Mac OS X v10.6 Snow Leopard users, make sure you have installed "Apple Software Installer Update 1.0". Then you can click "Continue" to proceed with the update.
For details about software update certificates, see this article.