Patches to bugs discovered within the core operating system typically don’t reach users of older and decrease-priced units. However, the open-supply nature of Android permits safety contractors to take existing gadgets and adapt them for extremely safe makes use of. For example, Samsung has labored with General Dynamics by way of their Open Kernel Labs acquisition to rebuild Jelly Bean on top of their hardened microvisor for the “Knox” project.
In May 2017, with the announcement of Android 8.0, Google launched Project Treble, a major re-architect of the Android OS framework designed to make it simpler, sooner, and less expensive for manufacturers to replace gadgets to newer versions of Android. Project Treble separates the vendor implementation (device-particular, decrease-level software program written by silicon manufacturers) from the Android OS framework through a brand new “vendor interface”. In Android 7.0 and earlier, no formal vendor interface exists, so device makers must update large portions of the Android code to maneuver a tool to a more recent model of the operating system.