SunOS - History

History

SunOS version Release date Code base Description
Sun UNIX 0.7 1982 UniSoft UNIX v7 Bundled with 68000-based Sun-1 system
SunOS 1.0 1983 4.1BSD Support for 68010-based Sun-1 and Sun-2 systems
SunOS 1.1 Apr 1984
SunOS 1.2 Jan 1985
SunOS 2.0 May 1985 4.2BSD Introduced virtual file system (VFS) layer and the NFS protocol
SunOS 3.0 Feb 1986 4.2BSD + System V IPC coincided with release of 68020-based Sun-3 series. Optional System V tape offered utilities and development libraries.
SunOS 3.2 Sep 1986 Same as 3.0, plus some 4.3BSD First support for Sun-4 series
SunOS 3.5 Jan 1988
SunOS 4.0 Dec 1988 4.3BSD with System V IPC New virtual memory system, dynamic linking, automounter, System V STREAMS I/O. Sun386i support.
SunOS 4.0.1 1988
SunOS 4.0.2 Sep 1989 Sun386i only
SunOS 4.0.3 May 1989
SunOS 4.0.3c Jun 1989 SPARCstation 1 (Sun-4c) only
SunOS 4.1 Mar 1990
SunOS 4.1e Apr 1991 Sun-4e only
SunOS 4.1.1 Mar 1990 Bundled with OpenWindows 2.0
SunOS 4.1.1B Feb 1991
SunOS 4.1.1.1 Jul 1991
SunOS 4.1.1_U1 Nov 1991 Sun-3/3x only
SunOS 4.1.2 Dec 1991 Support for multiprocessor (SPARCserver 600MP) systems; first CD-ROM-only release
SunOS 4.1.3 Aug 1992
SunOS 4.1.3C Nov 1993 SPARCclassic/SPARCstation LX only
SunOS 4.1.3_U1 Dec 1993
SunOS 4.1.3_U1B Feb 1994 Earliest release for which Y2K compliance patches were available
SunOS 4.1.4 Nov 1994 Last release of SunOS 4
SunOS 5.x Jun 1992 - SVR4 See Solaris article

SunOS 1 and 2 supported the Sun-2 series systems, including Sun-1 systems upgraded with Sun-2 (68010) CPU boards. SunOS 3 supported Sun-2 and Sun-3 (68020) series systems. SunOS 4 supported Sun-2 (until release 4.0.3), Sun-3 (until 4.1.1), Sun386i (4.0, 4.0.1 and 4.0.2 only) and Sun-4 (SPARC) architectures. Although SunOS 4 was intended to be the first release to fully support Sun's new SPARC processor, there was also a SunOS 3.2 release with preliminary support for Sun-4 systems.

SunOS 4.1.2 introduced support for Sun's first sun4m-architecture multiprocessor machines (the SPARCserver 600MP series); since it had only a single lock for the kernel, only one CPU at a time could execute in the kernel.

The last release of SunOS 4 was 4.1.4 (Solaris 1.1.2) in 1994. The sun4, sun4c and sun4m architectures were supported in 4.1.4; sun4d was not supported.

Sun continued to ship SunOS 4.1.3 and 4.1.4 until December 27, 1998; they were supported until September 30, 2003.

Read more about this topic:  SunOS

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