Hello, I am Nathan.
By program, I assume you mean driver. There are drivers available for the fallowing versions of the Mac OS :
Yosemite 10.10Mavericks 10.9Mountain Lion 10.8Lion 10.7Snow Leopard 10.4-10.6
Any of these can be downloaded from Canon's website, located here
Simply scroll down, click on "Drivers and Downloads", and select your operating system from the pull down list.