The world knows quite a lot about Linux, but before Linux there was a branch from AT&T Unix called the Berkeley Software Distribution (BSD). After a lot of changes to the code, we have something which is completely free and its called the FreeBSD. Unlike Unix which is proprietary FreeBSD is free in terms of money as well as source-code.
Today, the FreeBSD team announced the availability of version 7.0. It is the stable build of the kernel and contains a host of improvements in performance, security and has a lot of bug fixes. According to the release notes, the performance in multiprocessor systems has increased dramatically and when compared to Linux performs about 15% better. This means that compared to previous versions of FreeBSD, the performance is even greater since Linux performed better than FreeBSD previously.
For a complete list of new features and known problems, please see the online release notes and errata list, available at: