Linux Top 3: CoreOS 1010.1.0, FreeBSD and PC-BSD 10.3

CoreOS is a very fast moving Linux distribution that is optimized for container delivery, and has  three main release tracks: Stable, Beta and Alpha. The most recent Alpha release represents the leading edge of development and including the Linux 4.5.0 kernel, Docker 1.10.3 and rkt 1.2.1.