Allowed LicensesEdit

  • OpenBSD's BSD license (Berkeley)
  • Apache 1.x licenses***
  • AT&T
  • Caldera (BSD 4-clause license)
  • Carnegie-Mellon
  • ISC
  • GNU (L)GPL*
  • NetBSD
  • FreeBSD
  • X**
  • Public Domain

Disallowed LicensesEdit

  • Apache 2.x licenses***
  • Shareware
  • Charityware
  • Freeware
  • Linux


* The (L)GPL license is disallowed in the kernel or runtime.
** X is distributed with many OpenBSD ports as a convenience to the user, subject to applicable license terms.
*** The version of Apache coming with OpenBSD is a Compiled Work and not a Derivatived Work. Apache 2 licenses say with OpenBSD's Apache version is a Derivatived Work. Apache 2 licenses thus can't be used in OpenBSD.

More LinksEdit - most license info came from here.