OpenBSD About OpenBSD Project Goals Hardware Platforms Security Crypto Events and Papers Innovations Getting OpenBSD Download Getting Source AnonCVS CVSWeb GitHub Mirror GotHub Mirror OpenBSD Resources Changelog FAQ Manual Pages Patches Reporting Problems Mailing Lists Songs & Artwork Hackathons User Groups Commercial Support Supporting OpenBSD Donations Art Merchandise OpenBSD Foundation Only two remote holes in the default install, in a heck of a long time! The OpenBSD project produces a FREE, multi-platform 4.4BSD-based UNIX-like operating system. Our efforts emphasize portability, standardization, correctness, proactive security and integrated cryptography. As an example of the effect OpenBSD has, the popular OpenSSH software comes from OpenBSD. OpenBSD is freely available from our download sites. The current release is OpenBSD 7.8, released October 22, 2025. This is the 59th release. OpenBSD is developed entirely by volunteers. The project's development environment and developer events are funded through contributions collected by The OpenBSD Foundation. Contributions ensure that OpenBSD will remain a vibrant and free operating system. Associated projects: OpenSSH, OpenBGPD, rpki-client, OpenNTPD, OpenSMTPD, OpenIKED, mandoc, LibreSSL
