IOS 9

iOS 9
Version of the iOS operating system
Developer	Apple Inc.
Source model	Closed source with open-source components
Initial release	September 16, 2015
Latest release	9.3.6 / July 22, 2019
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Marketing target	Consumer electronics
Available in	Multilingual
Update method	OTA update
Package manager	App Store
Platforms	iPhone, iPad, iPod Touch
Kernel type	Hybrid kernel
Default; user interface	Cocoa Touch
License	Proprietary
Preceded by	iOS 8
Succeeded by	iOS 10
Official website	{{#property:P856}}

IOS_9_logo

iOS 9 is the ninth major release of the iOS mobile operating system developed by Apple Inc., being the successor to iOS 8. It was announced at the company's Worldwide Developers Conference (WWDC) on June 8, 2015, and was released on September 16, 2015. iOS 9 focused on performance improvements, battery life enhancements, and security updates.

Features[edit | edit source]

iOS 9 introduced several new features and improvements over its predecessor, including:

Proactive Assistant: An enhancement to Siri, providing contextual information and suggestions based on user habits and usage patterns.
Multitasking: New multitasking features for the iPad, including Split View, Slide Over, and Picture in Picture.
Notes: A revamped Notes app with new formatting options, checklists, and the ability to add photos, maps, and web links.
News: A new Apple News app that aggregates news stories from various sources.
Maps: Improved Apple Maps with public transit directions and nearby points of interest.
Wallet: An update to Apple Wallet (formerly Passbook) with support for loyalty cards, credit cards, and debit cards.
Low Power Mode: A new feature to extend battery life by reducing background activity and performance.
Enhanced Security: Improved security features, including a six-digit passcode and two-factor authentication.

Performance and Battery Life[edit | edit source]

iOS 9 was designed to be more efficient, with a smaller installation size and improved performance on older devices. The update aimed to extend battery life through various optimizations and the introduction of Low Power Mode.

Compatibility[edit | edit source]

iOS 9 was compatible with the following devices:

iPhone 4S and later
iPad 2 and later
iPad Mini and later
iPod Touch (5th generation) and later

Reception[edit | edit source]

iOS 9 received generally positive reviews for its performance improvements, new features, and enhanced security. However, some users reported issues with the initial release, which were addressed in subsequent updates.

Related Pages[edit | edit source]

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