Researchers demonstrated within hours of the product release that the third-generation iPad can be "jailbroken" to use applications and programs that are not authorized by Apple. The third-generation iPad can be jailbroken with Redsn0w 0. 9. 12 or Absinthe 2. 0. Jailbreaking violates the factory warranty. One of the main reasons for jailbreaking is to expand the feature set limited by Apple and its App Store. Most jailbreaking tools automatically install Cydia, a native iOS APT client used for finding and installing software for jailbroken iOS devices. Many apps unapproved by Apple are extensions and customizations for iOS and other apps. Users install these programs to personalize and customize the interface, adding desired features and fixing annoyances, and simplify app development by providing access to the filesystem and command-line tools. However, Apple often patches the exploits used by jailbreaking teams with iOS updates. This is why the iPad 3rd Generation is not always jailbreakable.