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Mac OS X 10.7 "Lion" is the seventh major version of Mac OS X, an operating system by Apple, Inc. It was released on July 20, 2011 as the successor to Mac OS X 10.6 "Snow Leopard" and was the predecessor to OS X 10.8 "Mountain Lion".
The Address Book uses an iPad-like user interface, and includes improved Yahoo support and FaceTime calling.
AirDrop sharing via Wi-Fi Direct was added, as was the Auto Save feature for documents.
Emoji support was added in this release.
Auto-correction behaves much more like in iOS devices, displaying an iOS-like popup box.
FaceTime comes bundled with this release.
FileVault, a disk encryption program, offers full disk encryption and added security features, with support for FileVault on external hard drives being added.
The Finder file manager has been moderately improved, with the ability to group files by various attributes and merge files under two folders with the same name added, among other features.
Font Book was updated to version 3, providing more flexible displays of character glyphs supplied by a particular font face. Duplicate font files are flagged with a warning icon.
Apps can be full-screen and run in their own space.
Users can download new high-quality voices in more than forty languages and dialects.
iCal has an updated user interface, an annual view, and support for full-screen.
iChat has support for logging into Yahoo! Messenger, and users can audio- and video-chat with other iChat users using their Yahoo accounts.
The Mac App Store and Launchpad application launcher have been added to this release.
Multi-touch gestures have been added with multi-touch input devices such as the Magic Mouse and Magic Trackpad.
Mail has been updated to version 5, and includes an iPad-like user interface, fullscreen support, uses chronological "Conversations" to organize messages, and supports Exchange 2010.