The following is a summary of the release history of the OpenBSD operating system. * 1.2: July 1, 1996 - * Creation of the intro(9) man page, for documenting kernel internals. * Integration of the update(8) command into the kernel. * 2.0: October 1, 1996 - * the first release where XFree86 recognised OpenBSD as separate from NetBSD * initial integration of the FreeBSD ports system * replacement of gawk with the AT&T awk * integration of zlib * added sudo * 2.1: June 1, 1997 - * replacement of the older sh with pdksh * 2.2: December 1, 1997 - * addition of the afterboot(8) man page * 2.3: May 19, 1998 - * Introduced the haloed daemon, or aureola beastie, in head-only form created by Erick Green. * 2.4: De