iOS 5
iOS 5.1.1 running on an iPhone 4
Version 5.x
Codename Telluride (5.0) Hoodoo (5.1)
Architecture ARM32
Latest build 9B208 (5.1.1 Revised Update)
Release date 2011-10-12
iOS 4
iOS 6
iOS 5 (codenamed Telluride ) is the fifth version of iOS that was released on 12 October 2011. It was first announced at the WWDC keynote on 6 June 2011.
Devices can now be set up, activated, and configured without connecting to a computer.
Siri, Apple's voice assistant, has been added with this release for the iPhone 4S.
Notification Center has been added, which displays recent notifications.
Notifications will now briefly appear at the top of the screen as banners.
Notifications can now be viewed and opened from Lock Screen.
A shortcut to the Camera app has been added to the lock screen, which can be accessed by double-clicking the home button.
The volume buttons can now be used to take a picture.
An option to enable grid lines has been added.
Camera face detection now highlights all faces.
Editing tools have been added to the Photos apps. These include crop and rotate, one-tap enhancement, and red-eye removal.
The new iMessages app has several new features, such as:
Read receipts
Group messages
Encrypted messages
Unlimited text, photo, and video messages
Wi-Fi support
iCloud has been added, which replaces MobileMe.
Music, Photos, Documents, Apps, Contacts, and more can be synced in iCloud.
Apps and Books now have purchase history and can be automatically updated.
The Reminders app has been added, which allows users to create lists of tasks with date-based or location-based alerts.
Newsstand has been added, which is a special folder that displays the user's purchased newspapers and magazines. New issues would be downloaded automatically.
Tabbed browsing has been added to the iPad.
On the iPad 2, users now have the ability to search within a web page.
Private Browsing has been added, which can be enabled from the Settings app.
Web pages can now be added to the new Reading List folder.
System updates can now be installed via Settings.
System-wide integration with Twitter has been added.
The iPod app has been replaced by separate Music and Videos apps.
Text in Mail can now be formatted with bold, italic, or underlines.
Personal photos can now be used for Game Center profiles.
The "Pinch to Close" gesture has been added to the iPad 2.
On iPad models, the keyboard can be undocked from the bottom of the screen and could be split into two half-keyboards.
Several new accessibility options have been added.