Safari 3.1 is available immediately as a free download at Apple’s Safari website for both Mac OS X and Windows users. Safari software updates will also be delivered seamlessly through Apple’s Software Update application, which automatically checks for updates.

Safari 3.1 for Mac OS X requires Mac OS X Leopard or Mac OS X Tiger version 10.4.11, a minimum of 256MB of memory and is designed to run on any Intel-based Mac or a Mac with a PowerPC G5, G4 or G3 processor and built-in FireWire. Safari 3.1 for Windows requires Windows XP or Windows Vista, a minimum of 256MB of memory and a system with at least a 500 MHz Intel Pentium processor.