The following is a summary of the release history of the OpenBSD operating system.1.1: October 18, 1995 – OpenBSD CVS repository created by Theo de Raadt. [1] While the version number used at this stage was 1.1 (cf. the release history of NetBSD, which OpenBSD branched from), OpenBSD 1.1 was not an official OpenBSD release in the sense which this term subsequently came to be used in.1.2: July 1, 1996 – Creation of the intro(9) man page, for documenting kernel internals.