After years of being outside of the mainline, the AppArmor security system is now finally part of the main Linux kernel. Linux founder Linus Torvalds formally released the 2.6.36 kernel this week nearly three months after the release of the 2.6.35 kernel.
AppArmor has been in use by Linux distributions since at least 2006 when Novell first open sourced the code as a rival option to SELinux which has been championed by Red Hat. Ubuntu picked up AppArmor in 2007 with the 7.10 Gutsy Gibbon release.

Over the years, Novell had tried to get AppArmor into the mainline Linux kernel, though in the end it was Ubuntu that led the successful charge to that got AppArmor into the 2.6.36 kernel.

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