PikeOS is both an RTOS and a hypervisor built upon the Safe and Secure Virtualization (SSV) technology that enables multiple operating system partitions, called guest OSs, to work safely and securely on separate sets of resources within a single machine. PikeOS has the largest range of supported guest OSs of the market, including PikeOS Native, ARINC-653, Linux, POSIX, Certified POSIX, Android™, RTEMS, AUTOSAR, iTRON and others. The PikeOS microkernel architecture allows it to be used in cost sensitive, resource constrained devices as well as large, complex systems. The simplicity and compactness of the PikeOS design results in real-time performance that competes head-to-head with conventional proprietary RTOS solutions. PikeOS supports single- and multi-core processor architectures. Support of multi-core offers a flexible approach for the user who can select an execution model ranging from a pure AMP (Asymmetric Multi Processing) to full SMP (Symmetric Multi Processing). PikeOS is certifiable to safety standards like DO-178B/C, IEC 61508, EN 50128, IEC 62304, ISO 26262, IEC 15408 (Common Criteria) and is MILS compliant. In 2013 PikeOS achieved the first EN 50128 SIL 4 certification of the market on a multi-core system. In Q2 2017 the new version PikeOS 4.2 has been released. It is characterized by an improved multicore CPU handling and is the new foundation for projects that need get certified.