# OS X Yosemite

> eleventh major release of OS X

**Wikidata**: [Q17107792](https://www.wikidata.org/wiki/Q17107792)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/OS_X_Yosemite)  
**Source**: https://4ort.xyz/entity/os-x-yosemite

## Summary
OS X Yosemite is the eleventh major release of Apple's macOS operating system, launched on October 16, 2014. It succeeded OS X Mavericks and was followed by OS X El Capitan. Yosemite introduced a redesigned user interface and enhanced integration with iOS devices.

## Key Facts
- Released on October 16, 2014, as the eleventh major version of OS X
- Developed by Apple Inc., headquartered in Cupertino, California
- Latest version is 10.10.5, released July 19, 2017
- Based on Darwin, Apple's open-source operating system foundation
- Licensed under the Apple Public Source License
- Part of the macOS product series
- Certified as UNIX 03 compliant
- Named after Yosemite National Park
- Features the Aqua graphical user interface toolkit
- Supports Apple's proprietary platform architecture

## FAQs
### Q: What is OS X Yosemite?
A: OS X Yosemite is the eleventh major release of Apple's desktop operating system, featuring a redesigned interface and improved integration with iOS devices. It was released in 2014 as part of the macOS product line.

### Q: When was OS X Yosemite released?
A: OS X Yosemite was officially released on October 16, 2014, succeeding OS X Mavericks and preceding OS X El Capitan.

### Q: What are the key features of OS X Yosemite?
A: OS X Yosemite introduced a flatter, more colorful design aesthetic, enhanced Continuity features for seamless integration with iOS devices, and improved Spotlight search functionality.

## Why It Matters
OS X Yosemite represented a significant visual and functional evolution in Apple's desktop operating system. It marked the first major redesign of the Mac interface since the introduction of OS X, adopting a flatter, more colorful aesthetic that aligned with iOS 7's design language. The update strengthened the integration between Mac and iOS devices through features like Handoff, allowing users to start tasks on one device and continue on another. Yosemite also enhanced Spotlight search, making it more powerful and context-aware. These changes reflected Apple's strategy to create a more unified ecosystem across its devices, improving user experience and productivity. The release demonstrated Apple's commitment to regular, substantial updates to its operating system, maintaining its competitive edge in the desktop computing market.

## Notable For
- First major visual redesign of OS X since its initial release
- Introduced Continuity features for seamless iOS-Mac integration
- Enhanced Spotlight search with natural language processing
- Adopted a flatter, more colorful design aesthetic aligned with iOS 7
- Improved iCloud integration and file sharing capabilities

## Body
### Development and Release
OS X Yosemite was developed by Apple Inc. and released on October 16, 2014. It was the eleventh major release in the OS X line, which began in 2001. The operating system was made available as a free update to users with compatible Mac computers.

### Technical Specifications
Yosemite is based on Darwin, Apple's open-source operating system foundation. It is certified as UNIX 03 compliant, ensuring compatibility with UNIX standards and applications. The system uses Apple's Aqua graphical user interface toolkit and is designed for Apple's proprietary platform architecture.

### Version History
The initial release was version 10.10. Subsequent updates included version 10.10.3 (April 7, 2015) and the final version 10.10.5 (July 19, 2017). These updates addressed bugs, improved security, and added minor features.

### Design and User Interface
Yosemite introduced a significant visual overhaul, featuring a flatter, more colorful design aesthetic. This redesign aligned the Mac interface more closely with iOS 7 and later versions, creating a more cohesive visual language across Apple's product line.

### Integration Features
A key focus of Yosemite was enhancing integration with iOS devices. The operating system introduced Continuity features, including Handoff, which allows users to start tasks on one Apple device and continue on another. It also improved iCloud integration and introduced AirDrop compatibility between Macs and iOS devices.

### Legacy
OS X Yosemite set the stage for future macOS releases by establishing a new design language and strengthening the integration between Apple's desktop and mobile operating systems. Its emphasis on seamless device interaction influenced subsequent versions of both macOS and iOS.

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## References

1. lobid
2. [Source](https://support.apple.com/en-us/HT204490)
3. [Source](https://support.apple.com/en-us/HT204928)
4. [Source](http://fileformats.archiveteam.org/wiki/AAE_sidecar_format)