bsd-family-tree revision 65412
1The UNIX system family tree: Research and BSD
2---------------------------------------------
3
4First Edition (V1)
5     |
6Second Edition (V2)
7     |
8Third Edition (V3)
9     |
10Fourth Edition (V4)
11     |
12Fifth Edition (V5)
13     |
14Sixth Edition (V6) -----*
15       \                |
16        \               |
17         \              |
18Seventh Edition (V7)    |
19            \           |
20             \        1BSD
21             32V        |
22               \      2BSD---------------*
23                \    /                   |
24                 \  /                    |
25                  \/                     |
26                 3BSD                    |
27                  |                      |
28               4.0BSD               2.7.9BSD
29                  |                      |
30               4.1BSD --------------> 2.8BSD
31                  |                      |
32              4.1aBSD -----------\       |
33                  |                \     |
34              4.1bBSD                \   |
35                  |                    \ |
36      *------ 4.1cBSD --------------> 2.9BSD
37     /            |                      |
38Eighth Edition    |                   2.9BSD-Seismo
39     |            |                      |
40     +----<--- 4.2BSD               2.9.1BSD
41     |            |                      |
42     +----<--- 4.3BSD -------------> 2.10BSD
43     |            |               /      |
44Ninth Edition     |              / 2.10.1BSD
45     |         4.3BSD Tahoe-----+        |
46     |            |              \       |
47     |            |                \     |
48     v            |                  2.11BSD
49Tenth Edition     |                      |
50                  |                  2.11BSD rev #430
51               4.3BSD NET/1              |
52                  |                      v
53               4.3BSD Reno
54                  |
55   *---------- 4.3BSD NET/2 -------------------+-------------*
56   |                    |                      |             |
57386BSD 0.0              |                      |             |
58   |                    |                      |             |
59386BSD 0.1 ------------>+                      |           BSDI 1.0
60   |     \              |                  4.4BSD Alpha      |
61   |     386BSD 1.0     |                      |             |
62   |                    |                  4.4BSD            |
63   |                    |                    / |             |
64   |                    |   4.4BSD-Encumbered  |             |
65   |                 NetBSD 0.8                |             |
66   |                    |                      |             |
67FreeBSD 1.0          NetBSD 0.9                |             |
68   |                    |           .----- 4.4BSD Lite --> BSDI 2.0
69FreeBSD 1.1             |          /   /       |             |
70   |                    |         /   /        |           BSDI 2.0.1
71FreeBSD 1.1.5       .---|--------'   /         |             |
72   |               /    |           /      4.4BSD Lite2 -> BSDI 2.1
73FreeBSD 1.1.5.1   /     |          /      /    |    | \      |
74   |             /   NetBSD 1.0 <-'      /     |    |   \    |
75   |            /       |              /       |    |    `-BSDI 3.0
76FreeBSD 2.0 <--'        |         FreeBSD 3.0  |    |        |
77   |                     \               NetBSD 1.3 |        v
78FreeBSD 2.0.5             \                   OpenBSD 2.3
79   |                       \
80   |                        \
81FreeBSD 2.1                  |
82 |   |                    NetBSD 1.1 ------.
83 | FreeBSD 2.1.5             |              \
84 |     |                  NetBSD 1.2         \
85 | FreeBSD 2.1.6             |  \          OpenBSD 2.0
86 |     |                     |   \             |
87 | FreeBSD 2.1.6.1           |    \            |
88 |     |                     |     \           |
89 | FreeBSD 2.1.7             |      |          |
90 |     |                     |  NetBSD 1.2.1   |
91 | FreeBSD 2.1.7.1           |                 |
92 |                           |                 |
93 |                           |                 |
94 *-FreeBSD 2.2               |                 |
95 |        \                  |                 |
96 |     FreeBSD 2.2.1         |                 |
97 |         |                 |                 |
98 |     FreeBSD 2.2.2         |             OpenBSD 2.1
99 |         |              NetBSD 1.3           |
100 |     FreeBSD 2.2.5         |   \             |
101 |         |                 | NetBSD 1.3.1  OpenBSD 2.2
102 |         v                 |    |            |
103 |     FreeBSD 2.2.6         |    |          OpenBSD 2.3
104 |         |                 | NetBSD 1.3.2    |
105 |         v                 |    |            |
106 |     FreeBSD 2.2.7         |    |            |
107 |         |                 |    |            |
108 |         v                 |    |            |
109 |     FreeBSD 2.2.8         |    |            |
110 |                           |    |            |
111 |                           |    |        OpenBSD 2.4
112FreeBSD 3.0                  |    |            |
113 |                           | NetBSD 1.3.3    |
114 *---FreeBSD 3.1             |                 |
115 |       |                   |                 |
116 |   FreeBSD 3.2          NetBSD 1.4       OpenBSD 2.5
117 |       |                   |    |            |
118 |   FreeBSD 3.3             | NetBSD 1.4.1    |
119 |       |                   |    |        OpenBSD 2.6
120 |   FreeBSD 3.4             |    |            |
121 |           |               |    |            |
122FreeBSD 4.0  |               | NetBSD 1.4.2    |
123 |           |               |                 |
124 |           |               |                 |
125 |   FreeBSD 3.5             |             OpenBSD 2.7
126 |           |               |                 |
127 |   FreeBSD 3.5.1           |                 |
128 |                           |                 |
129 *---FreeBSD 4.1             |                 |
130 |      |                    |                 |
131 |      v                    |                 |
132 |                           |                 |
133 |                           |                 |
134FreeBSD 5.0-current       NetBSD -current  OpenBSD -current
135 |                           |                 |
136 v                           v                 v
137
138
139Time
140----------------
141
142Time tolerance +/- 6 month, depend on which book/article you read; if
143it was the announcement in Usenet or if it was available as tape.
144
145[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
146	and John Quarterman. The Design and Implementation of
147	the 4.4BSD Operating System.
148[DOC] README, COPYRIGHT on tape.
149[QCU] Salus, Peter H. A quarter century of UNIX.
150[U25] Peter H. Salus. Unix at 25.
151[USE] Usenet announcement.
152[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
153	Changes in the Kernel in 2.9BSD. Second Berkeley Software
154	Distribution UNIX Version 2.9, July, 1983.
155[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
156	Volume 11, Info 4, April, 1987.
157[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
158	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
159[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
160[FBD] FreeBSD Project, The.
161[NBD] NetBSD Project, The.
162[OBD] OpenBSD Project, The.
163[dmr] Dennis Ritchie, via E-Mail
164
165
166Multics                 1965
167UNIX                    Summer 1969
168				DEC PDP-7
169First   Edition         1971-11-03 [QCU]
170				DEC PDP-11/20, Assembler
171Second  Edition         1972-06-12 [QCU]
172				10 UNIX installations
173Third   Edition         1973-02-xx [QCU]
174				Pipes, 16 installations
175Fourth  Edition         1973-11-xx [QCU]
176				rewriting in C effected,
177                                above 30 installations
178Fifth   Edition         1974-06-xx [QCU]
179				above 50 installations
180Sixth   Edition         1975-05-xx [QCU]
181				port to DEC Vax
182Seventh Edition         1979-01-xx [QCU]
183				first portable UNIX
184Eighth  Edition         1985-02-xx [QCU]
185				VAX 11/750, VAX 11/780 [dmr]
186				descended from 4.1c BSD [dmr]
187				descended from 4.1 BSD [44B]
188			scooping-out and replacement of the character-device 
189			and networking part by the streams mechanism
190
191Ninth   Edition         1986-09-xx [QCU]
192Tenth   Edition         1989-10-xx [QCU]
193
1941BSD                    late 1977
195			1978-03-09 [QCU]
196				PDP-11, Pascal, ex(1)
197				30 free copies of 1BSD sent out
198				35 tapes sold for 50 USD [QCU]
1992BSD                    mid 1978 [QCU]
200				75 2BSD tapes shipped
2012.7.9BSD		?? [SMS]
2022.8BSD			1981-07-xx [KSJ]
203
2042.8.1BSD		1982-01-xx [QCU]
205				set of performance improvements
2062.9BSD			1983-07-xx [KSJ]
2072.9.1BSD                1983-11-xx
2082.9BSD-Seismo		1985-08-xx [SMS]
2092.10BSD			1987-04-xx [KKK]
2102.10.1BSD		1989-01-xx [SMS]
2112.11BSD			1992-02-xx [SMS]
2122.11BSD rev #430	1999-12-13 [SMS]
213
21432V			1978-1[01]-xx [QCU]
2153BSD                    late 1979 [QCU]
216				virtual memory, page replacement,
217                        	demand paging
2184.0BSD                  1980-10-xx
2194.1BSD                  1981-06-xx
2204.1aBSD                 1982-04-xx
221				alpha release, 100 sites, networking [44B]
2224.1bBSD				internal release, fast filesystem [44B]
2234.1cBSD                 late 1982
224				beta release, IPC [44B]
2254.2BSD                  1983-09-xx [QCU]
2264.3BSD                  1986-06-xx [QCU]
227			1986-04-xx [KB]
2284.3BSD Tahoe            1988-06-xx [QCU]
2294.3BSD NET/1            1988-11-xx [QCU]
2304.3BSD Reno             1990-06-xx [QCU], [DOC]
2314.3BSD NET/2            1991-06-xx [QCU]
232386BSD 0.0              1992-02-xx [DOC]
233386BSD 0.1              1992-07-xx [DOC]
2344.4BSD Alpha            1992-07-07
235NetBSD 0.8              1993-04-20 [NBD]
2364.4BSD                  1993-06-01 [USE]
237NetBSD 0.9              1993-08-23 [NBD]
238FreeBSD 1.0		1993-11-xx [FOO]
2394.4BSD Lite             1994-03-01 [USE]
240FreeBSD 1.1		1994-04-xx [FBD]
241FreeBSD 1.1.5.1		1994-07-xx [FBD]
242				supersedes 1.1.5 3 days after release.
243NetBSD 1.0              1994-10-26 [NBD]
244386BSD 1.0              1994-11-12 [USE]
245FreeBSD 2.0		1995-01-xx [FBD]
246FreeBSD 2.0.5		1995-06-xx [FBD]
2474.4BSD Lite Release 2	1995-06-xx [44B]
248				the true final distribution from the CSRG
249NetBSD 1.1              1995-11-26 [NBD]
250FreeBSD 2.1		1995-12-xx [FBD]
251FreeBSD 2.1.5		1996-08-xx [FBD]
252NetBSD 1.2              1996-10-04 [NBD]
253OpenBSD 2.0             1996-10-18 [OBD]
254FreeBSD 2.1.6		1996-12-xx [FBD]
255FreeBSD 2.1.7		1997-02-xx [FBD]
256FreeBSD 2.2.1		1997-04-xx [FBD]
257NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
258OpenBSD 2.1             1997-06-01 [OBD]
259FreeBSD 2.2.2		1997-06-xx [FBD]
260NetBSD 1.3              1998-01-04 [NBD]
261FreeBSD 2.2.5		1997-11-xx [FBD]
262OpenBSD 2.2             1997-12-01 [OBD]
263FreeBSD 2.2.6		1998-03-xx [FBD]
264NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
265OpenBSD 2.3             1998-05-19 [OBD]
266NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
267FreeBSD 2.2.7		1998-07-xx [FBD]
268FreeBSD 3.0		1998-10-16 [FBD]
269				FreeBSD-3.0 is a snapshot from -current, 
270				while 3.1 and 3.2 are from 3.x-stable which 
271				was branched quite some time after 3.0-release
272FreeBSD 2.2.8           1998-11-29 [FBD]
273OpenBSD 2.4             1998-12-01 [OBD]
274NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
275FreeBSD 3.1		1999-02-15 [FBD]
276NetBSD 1.4              1999-05-12 [NBD]
277FreeBSD 3.2             1999-05-17 [FBD]
278OpenBSD 2.5             1999-05-19 [OBD]
279NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
280FreeBSD 3.3             1999-09-17 [FBD]
281OpenBSD 2.6             1999-12-01 [OBD]
282FreeBSD 3.4             1999-12-20 [FBD]
283FreeBSD 4.0             2000-03-13 [FBD]
284NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
285OpenBSD 2.7             2000-06-15 [OBD]
286FreeBSD 3.5		2000-06-24 [FBD]
287FreeBSD 4.1		2000-07-27 [FBD]
288FreeBSD 3.5.1		2000-07-28 [FBD]
289
290
291Bibliography
292------------------------
293
294Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
295Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
296System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
297
298Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
299Company, Inc., 1994. ISBN 0-201-54777-5
300
301McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
302Quarterman. The Design and Implementation of the 4.4BSD Operating
303System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
304
305Doug McIlroy. Research Unix Reader.
306
307Michael G. Brown. The Role of BSD in the Development of Unix.
308Presented to the Tasmanian Unix Special Interest Group of the
309Australian Computer Society, Hobart, August 1993.
310
311Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
312URL: http://www.byte.com/art/9410/sec8/art3.htm
313
314Andreas Klemm, Lars K�ller. If you're going to San Francisco ...
315Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
316
317BSD Release Announcements collection.
318URL: http://www.de.FreeBSD.org/de/ftp/releases/
319
320BSD Hypertext Man Pages
321http://www.FreeBSD.org/cgi/man.cgi
322
323UNIX history graphing project
324http://minnie.cs.adfa.edu.au/Unix_History/index.html
325
326Acknowledgments
327---------------
328
329Josh Gilliam for suggestions, bug fixes, and finding very old
330original BSD announcements from Usenet or tapes.
331
332Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
333
334--
335Copyright (c) 1997-1999 Wolfram Schneider <wosch@FreeBSD.ORG>
336URL: ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/share/misc/bsd-family-tree
337
338$FreeBSD: head/share/misc/bsd-family-tree 65412 2000-09-03 16:45:46Z wosch $
339
340