OpenBSD 4.1 merupakan rilis CD ke 21 atau ke 22 via FTP.
Selama 10 tahun terakhir OpenBSD ditemukan hanya dua celah sekuriti pada instalasi default. Rilis versi 4.1 menyediakan perbaikan signifikan, termasuk fitur-fitur baru untuk semua bagian sistem.

REVIEWS:

softwareinreview: Review: OpenBSD 4.1
2007-06-20 by Valour - "If you're a software enthusiast who has never used OpenBSD before, you might enjoy installing it by yourself and figuring it out as you go. If, however, you're looking for a more practical approach to using OpenBSD 4.1 on a desktop or server machine, here's a quick guide to get you started in this spectacular operating system."

onlamp: OpenBSD 4.1: Puffy Strikes Again
2007-05-05 Nix_User - "OpenBSD 4.1 has just been released. Federico Biancuzzi interviewed several developers to discuss some of the new features for networking, active porting efforts (landisk and UltraSPARC III), work on SMP, and the improvements in spam fighting."