- Developer
- Apple
- Written in
- C , C++ , Objective-C , assembly language
- Os family
- Unix-like , FreeBSD , BSD
- Working state
- Current
- Source model
- Currently open source with proprietary components, previously open source
- Initial release
- November 15, 2000 ; 25 years ago ( 2000-11-15 )
- Latest release
- 27.0.0 / June 8, 2026 ; 3 days ago ( 2026-06-08 )
- Repository
- github .com /apple-oss-distributions /distribution-macOS
- Supported platforms
- Current: x86-64 , 64-bit ARM , 32-bit ARM (32-bit ARM support is closed-source) Historical: PowerPC (32-bit and 64-bit), IA-32
- Kernel type
- Hybrid ( XNU )
- Influenced by
- NeXTSTEP , FreeBSD , BSD , Mach