2003 · No longer updated

Download Mac OS X Panther 10.3

Panther brought Exposé, Fast User Switching and FileVault, along with a much faster Finder.

Disc onlyPowerPC

Version: 10.3
Released: 24 October 2003
Latest build: 10.3.9
Processors: PowerPC

How to get Mac OS X Panther 10.3

Retail CDs (used market)

Shipped on CD. Look for the retail box on the second-hand market.

Opens a search for used Mac OS X Panther 10.3 discs. Check the listing says “retail”, not a grey disc that came with a specific Mac.

Compatible Macs

PowerPC G3, G4 or G5 Macs with built-in USB and 128 MB of RAM.

Not sure which Mac you have? See which macOS your Mac can run.

Get help from Apple

Apple Support Communities: Earlier Operating SystemsApple's official user forum for Mac OS X Panther and other macOS versions before Sequoia.discussions.apple.comApple: How to download and install macOSApple's guide to the App Store, disk image and Terminal download methods, with compatibility rules.support.apple.com

What's new in Mac OS X Panther

Exposé
Fast User Switching
FileVault encryption

Questions

Can I still download Mac OS X Panther 10.3 from Apple?

No. Mac OS X Panther 10.3 was only sold on physical discs and Apple doesn't offer it as a download. Retail discs are available on the second-hand market.

What is the latest version of Mac OS X Panther 10.3?

The final or latest build is 10.3.9, according to Apple's version list.

Which Macs can run Mac OS X Panther 10.3?

PowerPC G3, G4 or G5 Macs with built-in USB and 128 MB of RAM.