

FeaturesĪpple billed Mac OS 9 as including "50 new features" and heavily marketed its Sherlock 2 software, which introduced a "channels" feature for searching different online resources and introduced a QuickTime-like metallic appearance. Mac OS 9 also featured integrated support for Apple's suite of Internet services known as iTools (later re-branded as. Mac, then MobileMe, which was replaced by iCloud) and included improved TCP/IP functionality with Open Transport 2.5. Integrated support for multiple user accounts without using At Ease.Support for voice login through VoicePrint passwords.

Keychain, a feature allowing users to save passwords and textual data encrypted in protected keychains.

