bsd-family-tree revision 69278
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 |         |                 |                 |
100 |     FreeBSD 2.2.5         |                 |
101 |         |                 |             OpenBSD 2.2
102 |         |              NetBSD 1.3           |
103 |     FreeBSD 2.2.6         |    |            |
104 |         |                 | NetBSD 1.3.1    |
105 |         |                 |    |        OpenBSD 2.3
106 |         |                 | NetBSD 1.3.2    |
107 |     FreeBSD 2.2.7         |    |            |
108 |         |                 |    |            |
109 |         v                 |    |            |
110 |     FreeBSD 2.2.8         |    |            |
111 |                           |    |            |
112 |                           |    |        OpenBSD 2.4
113FreeBSD 3.0                  |    v            |
114 |                           | NetBSD 1.3.3    |
115 *---FreeBSD 3.1             |                 |
116 |       |                   |                 |
117 |   FreeBSD 3.2          NetBSD 1.4       OpenBSD 2.5
118 |       |                   |    |            |
119 |   FreeBSD 3.3             | NetBSD 1.4.1    |
120 |       |                   |    |        OpenBSD 2.6
121 |   FreeBSD 3.4             |    |            |
122 |           |               |    |            |
123FreeBSD 4.0  |               | NetBSD 1.4.2    |
124 |           |               |    |            |
125 |           |               |    |            |
126 |   FreeBSD 3.5             |    |        OpenBSD 2.7
127 |           |               |    |            |
128 |   FreeBSD 3.5.1           |    |            |
129 |                           |    |            |
130 *---FreeBSD 4.1             |    |            |
131 |      |                    |    |            | 
132 |   FreeBSD 4.1.1           |    |            |
133 |      |                    |    |            | 
134 |   FreeBSD 4.2             | NetBSD 1.4.3    |
135 |      |                    |             OpenBSD 2.8
136 |      v                    |                 |
137 |                           |                 |
138 |                           |                 |
139FreeBSD 5.0-current       NetBSD -current  OpenBSD -current
140 |                           |                 |
141 v                           v                 v
142
143
144Time
145----------------
146
147Time tolerance +/- 6 months, depending on which book/article you read; if it
148was the announcement in Usenet or if it was available as tape.
149
150[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
151	and John Quarterman. The Design and Implementation of
152	the 4.4BSD Operating System.
153[DOC] README, COPYRIGHT on tape.
154[QCU] Salus, Peter H. A quarter century of UNIX.
155[U25] Peter H. Salus. Unix at 25.
156[USE] Usenet announcement.
157[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
158	Changes in the Kernel in 2.9BSD. Second Berkeley Software
159	Distribution UNIX Version 2.9, July, 1983.
160[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
161	Volume 11, Info 4, April, 1987.
162[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
163	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
164[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
165[FBD] FreeBSD Project, The.
166[NBD] NetBSD Project, The.
167[OBD] OpenBSD Project, The.
168[dmr] Dennis Ritchie, via E-Mail
169
170
171Multics                 1965
172UNIX                    Summer 1969
173				DEC PDP-7
174First   Edition         1971-11-03 [QCU]
175				DEC PDP-11/20, Assembler
176Second  Edition         1972-06-12 [QCU]
177				10 UNIX installations
178Third   Edition         1973-02-xx [QCU]
179				Pipes, 16 installations
180Fourth  Edition         1973-11-xx [QCU]
181				rewriting in C effected,
182                                above 30 installations
183Fifth   Edition         1974-06-xx [QCU]
184				above 50 installations
185Sixth   Edition         1975-05-xx [QCU]
186				port to DEC Vax
187Seventh Edition         1979-01-xx [QCU]
188				first portable UNIX
189Eighth  Edition         1985-02-xx [QCU]
190				VAX 11/750, VAX 11/780 [dmr]
191				descended from 4.1c BSD [dmr]
192				descended from 4.1 BSD [44B]
193			scooping-out and replacement of the character-device 
194			and networking part by the streams mechanism
195
196Ninth   Edition         1986-09-xx [QCU]
197Tenth   Edition         1989-10-xx [QCU]
198
1991BSD                    late 1977
200			1978-03-09 [QCU]
201				PDP-11, Pascal, ex(1)
202				30 free copies of 1BSD sent out
203				35 tapes sold for 50 USD [QCU]
2042BSD                    mid 1978 [QCU]
205				75 2BSD tapes shipped
2062.7.9BSD		?? [SMS]
2072.8BSD			1981-07-xx [KSJ]
208
2092.8.1BSD		1982-01-xx [QCU]
210				set of performance improvements
2112.9BSD			1983-07-xx [KSJ]
2122.9.1BSD                1983-11-xx
2132.9BSD-Seismo		1985-08-xx [SMS]
2142.10BSD			1987-04-xx [KKK]
2152.10.1BSD		1989-01-xx [SMS]
2162.11BSD			1992-02-xx [SMS]
2172.11BSD rev #430	1999-12-13 [SMS]
218
21932V			1978-1[01]-xx [QCU]
2203BSD                    late 1979 [QCU]
221				virtual memory, page replacement,
222                        	demand paging
2234.0BSD                  1980-10-xx
2244.1BSD                  1981-06-xx
2254.1aBSD                 1982-04-xx
226				alpha release, 100 sites, networking [44B]
2274.1bBSD				internal release, fast filesystem [44B]
2284.1cBSD                 late 1982
229				beta release, IPC [44B]
2304.2BSD                  1983-09-xx [QCU]
2314.3BSD                  1986-06-xx [QCU]
232			1986-04-xx [KB]
2334.3BSD Tahoe            1988-06-xx [QCU]
2344.3BSD NET/1            1988-11-xx [QCU]
2354.3BSD Reno             1990-06-xx [QCU], [DOC]
2364.3BSD NET/2            1991-06-xx [QCU]
237386BSD 0.0              1992-02-xx [DOC]
238386BSD 0.1              1992-07-28 [DOC]
2394.4BSD Alpha            1992-07-07
240NetBSD 0.8              1993-04-20 [NBD]
2414.4BSD                  1993-06-01 [USE]
242NetBSD 0.9              1993-08-23 [NBD]
243FreeBSD 1.0		1993-11-xx [FOO]
2444.4BSD Lite             1994-03-01 [USE]
245FreeBSD 1.1		1994-04-xx [FBD]
246FreeBSD 1.1.5.1		1994-07-xx [FBD]
247				supersedes 1.1.5 3 days after release.
248NetBSD 1.0              1994-10-26 [NBD]
249386BSD 1.0              1994-11-12 [USE]
250FreeBSD 2.0		1995-01-xx [FBD]
251FreeBSD 2.0.5		1995-06-10 [FBD]
2524.4BSD Lite Release 2	1995-06-xx [44B]
253				the true final distribution from the CSRG
254FreeBSD 2.1.0		1995-11-19 [FBD]
255NetBSD 1.1              1995-11-26 [NBD]
256FreeBSD 2.1.5		1996-07-14 [FBD]
257NetBSD 1.2              1996-10-04 [NBD]
258OpenBSD 2.0             1996-10-18 [OBD]
259FreeBSD 2.1.6		1996-11-16 [FBD]
260FreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
261FreeBSD 2.1.7		1997-02-20 [FBD]
262FreeBSD 2.2.0		1997-03-16 [FBD]
263FreeBSD 2.2.1		1997-03-25 [FBD]
264FreeBSD 2.2.2		1997-05-16 [FBD]
265NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
266OpenBSD 2.1             1997-06-01 [OBD]
267FreeBSD 2.2.5		1997-10-22 [FBD]
268OpenBSD 2.2             1997-12-01 [OBD]
269NetBSD 1.3              1998-01-04 [NBD]
270FreeBSD 2.2.6		1998-03-25 [FBD]
271NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
272OpenBSD 2.3             1998-05-19 [OBD]
273NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
274FreeBSD 2.2.7		1998-07-22 [FBD]
275FreeBSD 3.0		1998-10-16 [FBD]
276				FreeBSD-3.0 is a snapshot from -current, 
277				while 3.1 and 3.2 are from 3.x-stable which 
278				was branched quite some time after 3.0-release
279FreeBSD 2.2.8           1998-11-29 [FBD]
280OpenBSD 2.4             1998-12-01 [OBD]
281NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
282FreeBSD 3.1		1999-02-15 [FBD]
283NetBSD 1.4              1999-05-12 [NBD]
284FreeBSD 3.2             1999-05-17 [FBD]
285OpenBSD 2.5             1999-05-19 [OBD]
286NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
287FreeBSD 3.3             1999-09-17 [FBD]
288OpenBSD 2.6             1999-12-01 [OBD]
289FreeBSD 3.4             1999-12-20 [FBD]
290FreeBSD 4.0             2000-03-13 [FBD]
291NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
292OpenBSD 2.7             2000-06-15 [OBD]
293FreeBSD 3.5		2000-06-24 [FBD]
294FreeBSD 4.1		2000-07-27 [FBD]
295FreeBSD 3.5.1		2000-07-28 [FBD]
296FreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
297FreeBSD 4.2  		2000-11-21 [FBD]
298NetBSD 1.4.3		2000-11-25 [NBD] (patch release)
299OpenBSD 2.8		2000-12-01 [OBD]
300
301
302Bibliography
303------------------------
304
305Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
306Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
307System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
308
309Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
310Company, Inc., 1994. ISBN 0-201-54777-5
311
312McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
313Quarterman. The Design and Implementation of the 4.4BSD Operating
314System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
315
316Doug McIlroy. Research Unix Reader.
317
318Michael G. Brown. The Role of BSD in the Development of Unix.
319Presented to the Tasmanian Unix Special Interest Group of the
320Australian Computer Society, Hobart, August 1993.
321
322Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
323URL: http://www.byte.com/art/9410/sec8/art3.htm
324
325Andreas Klemm, Lars K�ller. If you're going to San Francisco ...
326Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
327
328BSD Release Announcements collection.
329URL: http://www.de.FreeBSD.org/de/ftp/releases/
330
331BSD Hypertext Man Pages
332http://www.FreeBSD.org/cgi/man.cgi
333
334UNIX history graphing project
335http://minnie.cs.adfa.edu.au/Unix_History/index.html
336
337UNIX history
338http://perso.wanadoo.fr/levenez/unix/
339
340Acknowledgments
341---------------
342
343Josh Gilliam for suggestions, bug fixes, and finding very old
344original BSD announcements from Usenet or tapes.
345
346Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
347
348--
349Copyright (c) 1997-2000 Wolfram Schneider <wosch@FreeBSD.ORG>
350URL: ftp://ftp.freebsd.org/pub/FreeBSD/branches/-current/src/share/misc/bsd-family-tree
351
352$FreeBSD: head/share/misc/bsd-family-tree 69278 2000-11-27 17:03:04Z asmodai $
353
354