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macOS, formerly known as Mac OS X and OS X — Apple Inc.'s BSD-based operating system for their Macintosh computers.

Versions

Mac OS X	Server 1.0 Public Beta 10.0 Cheetah 10.1 Puma 10.2 Jaguar 10.3 Panther 10.4 Tiger 10.5 Leopard 10.6 Snow Leopard
OS X	10.7 Lion 10.8 Mountain Lion 10.9 Mavericks 10.10 Yosemite 10.11 El Capitan
macOS	10.12 Sierra 10.13 High Sierra 10.14 Mojave 10.15 Catalina 11 Big Sur 12 Monterey 13 Ventura 14 Sonoma 15 Sequoia

Applications

Core Applications

Developer Tools

Xcode	Instruments FileMerge
Former tools	Interface Builder Dashcode Quartz Composer

Former Applications

Utilities

Discontinued

Technologies &
User Interface

AirDrop AppKit Apple File System Apple menu Apple Push Notification service AppleScript Aqua Audio Units AVFoundation Bonjour Bundle CloudKit Cocoa ColorSync Command key Core Animation Core Audio Core Data Core Foundation Core Image Core OpenGL Core Text Core Video CUPS Cover Flow Darwin Dock FileVault Fonts Foundation Gatekeeper Grand Central Dispatch icns iCloud Kernel panic Keychain launchd Mach-O Menu extra Metal Mission Control Night Shift OpenCL Option key Preference Pane Property list Quartz Quick Look Rosetta Smart Folders Speakable items Spotlight Stacks System Integrity Protection Uniform Type Identifier Universal binary WebKit XNU XQuartz
Deprecated	HFS+
Discontinued	ATSUI BootX Brushed metal Carbon Classic Environment Inkwell QuickTime Spaces Xgrid

Italics denote upcoming products.
Category

Operating systems by Apple

Apple II, III, Lisa

Classic Mac OS	System 1 Systems 2, 3, and 4 System 5 System 6 System 7 Mac OS 8 Mac OS 9
macOS	History NeXTSTEP OpenStep Rhapsody Public Beta Core Darwin XNU Desktop Mac OS X Public Beta 10.0 (Cheetah) 10.1 (Puma) 10.2 Jaguar 10.3 Panther 10.4 Tiger 10.5 Leopard 10.6 Snow Leopard 10.7 Lion OS X 10.8 Mountain Lion 10.9 Mavericks 10.10 Yosemite 10.11 El Capitan macOS 10.12 Sierra 10.13 High Sierra 10.14 Mojave 10.15 Catalina 11 Big Sur 12 Monterey 13 Ventura 14 Sonoma 15 Sequoia Server Mac OS X Server 1.0
Other projects	Shipped A/ROSE A/UX AIX for Apple Network Servers MAE MkLinux PowerOpen Environment Cancelled Star Trek Taligent Copland Nukernel Vanguard

iOS derivatives

iOS	iPhone OS 1 2 3 iOS 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
iPadOS	13 14 15 16 17 18
Others	tvOS Apple TV Software visionOS watchOS audioOS bridgeOS

Others

List •