bsd-family-tree revision 65974
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 |   FreeBSD 4.1.1           |                 |
132 |      |                    |                 |
133 |      v                    |                 |
134 |                           |                 |
135 |                           |                 |
136FreeBSD 5.0-current       NetBSD -current  OpenBSD -current
137 |                           |                 |
138 v                           v                 v
139
140
141Time
142----------------
143
144Time tolerance +/- 6 month, depend on which book/article you read; if
145it was the announcement in Usenet or if it was available as tape.
146
147[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
148	and John Quarterman. The Design and Implementation of
149	the 4.4BSD Operating System.
150[DOC] README, COPYRIGHT on tape.
151[QCU] Salus, Peter H. A quarter century of UNIX.
152[U25] Peter H. Salus. Unix at 25.
153[USE] Usenet announcement.
154[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
155	Changes in the Kernel in 2.9BSD. Second Berkeley Software
156	Distribution UNIX Version 2.9, July, 1983.
157[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
158	Volume 11, Info 4, April, 1987.
159[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
160	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
161[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
162[FBD] FreeBSD Project, The.
163[NBD] NetBSD Project, The.
164[OBD] OpenBSD Project, The.
165[dmr] Dennis Ritchie, via E-Mail
166
167
168Multics                 1965
169UNIX                    Summer 1969
170				DEC PDP-7
171First   Edition         1971-11-03 [QCU]
172				DEC PDP-11/20, Assembler
173Second  Edition         1972-06-12 [QCU]
174				10 UNIX installations
175Third   Edition         1973-02-xx [QCU]
176				Pipes, 16 installations
177Fourth  Edition         1973-11-xx [QCU]
178				rewriting in C effected,
179                                above 30 installations
180Fifth   Edition         1974-06-xx [QCU]
181				above 50 installations
182Sixth   Edition         1975-05-xx [QCU]
183				port to DEC Vax
184Seventh Edition         1979-01-xx [QCU]
185				first portable UNIX
186Eighth  Edition         1985-02-xx [QCU]
187				VAX 11/750, VAX 11/780 [dmr]
188				descended from 4.1c BSD [dmr]
189				descended from 4.1 BSD [44B]
190			scooping-out and replacement of the character-device 
191			and networking part by the streams mechanism
192
193Ninth   Edition         1986-09-xx [QCU]
194Tenth   Edition         1989-10-xx [QCU]
195
1961BSD                    late 1977
197			1978-03-09 [QCU]
198				PDP-11, Pascal, ex(1)
199				30 free copies of 1BSD sent out
200				35 tapes sold for 50 USD [QCU]
2012BSD                    mid 1978 [QCU]
202				75 2BSD tapes shipped
2032.7.9BSD		?? [SMS]
2042.8BSD			1981-07-xx [KSJ]
205
2062.8.1BSD		1982-01-xx [QCU]
207				set of performance improvements
2082.9BSD			1983-07-xx [KSJ]
2092.9.1BSD                1983-11-xx
2102.9BSD-Seismo		1985-08-xx [SMS]
2112.10BSD			1987-04-xx [KKK]
2122.10.1BSD		1989-01-xx [SMS]
2132.11BSD			1992-02-xx [SMS]
2142.11BSD rev #430	1999-12-13 [SMS]
215
21632V			1978-1[01]-xx [QCU]
2173BSD                    late 1979 [QCU]
218				virtual memory, page replacement,
219                        	demand paging
2204.0BSD                  1980-10-xx
2214.1BSD                  1981-06-xx
2224.1aBSD                 1982-04-xx
223				alpha release, 100 sites, networking [44B]
2244.1bBSD				internal release, fast filesystem [44B]
2254.1cBSD                 late 1982
226				beta release, IPC [44B]
2274.2BSD                  1983-09-xx [QCU]
2284.3BSD                  1986-06-xx [QCU]
229			1986-04-xx [KB]
2304.3BSD Tahoe            1988-06-xx [QCU]
2314.3BSD NET/1            1988-11-xx [QCU]
2324.3BSD Reno             1990-06-xx [QCU], [DOC]
2334.3BSD NET/2            1991-06-xx [QCU]
234386BSD 0.0              1992-02-xx [DOC]
235386BSD 0.1              1992-07-xx [DOC]
2364.4BSD Alpha            1992-07-07
237NetBSD 0.8              1993-04-20 [NBD]
2384.4BSD                  1993-06-01 [USE]
239NetBSD 0.9              1993-08-23 [NBD]
240FreeBSD 1.0		1993-11-xx [FOO]
2414.4BSD Lite             1994-03-01 [USE]
242FreeBSD 1.1		1994-04-xx [FBD]
243FreeBSD 1.1.5.1		1994-07-xx [FBD]
244				supersedes 1.1.5 3 days after release.
245NetBSD 1.0              1994-10-26 [NBD]
246386BSD 1.0              1994-11-12 [USE]
247FreeBSD 2.0		1995-01-xx [FBD]
248FreeBSD 2.0.5		1995-06-xx [FBD]
2494.4BSD Lite Release 2	1995-06-xx [44B]
250				the true final distribution from the CSRG
251NetBSD 1.1              1995-11-26 [NBD]
252FreeBSD 2.1		1995-12-xx [FBD]
253FreeBSD 2.1.5		1996-08-xx [FBD]
254NetBSD 1.2              1996-10-04 [NBD]
255OpenBSD 2.0             1996-10-18 [OBD]
256FreeBSD 2.1.6		1996-12-xx [FBD]
257FreeBSD 2.1.7		1997-02-xx [FBD]
258FreeBSD 2.2.1		1997-04-xx [FBD]
259NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
260OpenBSD 2.1             1997-06-01 [OBD]
261FreeBSD 2.2.2		1997-06-xx [FBD]
262NetBSD 1.3              1998-01-04 [NBD]
263FreeBSD 2.2.5		1997-11-xx [FBD]
264OpenBSD 2.2             1997-12-01 [OBD]
265FreeBSD 2.2.6		1998-03-xx [FBD]
266NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
267OpenBSD 2.3             1998-05-19 [OBD]
268NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
269FreeBSD 2.2.7		1998-07-xx [FBD]
270FreeBSD 3.0		1998-10-16 [FBD]
271				FreeBSD-3.0 is a snapshot from -current, 
272				while 3.1 and 3.2 are from 3.x-stable which 
273				was branched quite some time after 3.0-release
274FreeBSD 2.2.8           1998-11-29 [FBD]
275OpenBSD 2.4             1998-12-01 [OBD]
276NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
277FreeBSD 3.1		1999-02-15 [FBD]
278NetBSD 1.4              1999-05-12 [NBD]
279FreeBSD 3.2             1999-05-17 [FBD]
280OpenBSD 2.5             1999-05-19 [OBD]
281NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
282FreeBSD 3.3             1999-09-17 [FBD]
283OpenBSD 2.6             1999-12-01 [OBD]
284FreeBSD 3.4             1999-12-20 [FBD]
285FreeBSD 4.0             2000-03-13 [FBD]
286NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
287OpenBSD 2.7             2000-06-15 [OBD]
288FreeBSD 3.5		2000-06-24 [FBD]
289FreeBSD 4.1		2000-07-27 [FBD]
290FreeBSD 3.5.1		2000-07-28 [FBD]
291FreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
292
293
294Bibliography
295------------------------
296
297Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
298Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
299System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
300
301Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
302Company, Inc., 1994. ISBN 0-201-54777-5
303
304McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
305Quarterman. The Design and Implementation of the 4.4BSD Operating
306System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
307
308Doug McIlroy. Research Unix Reader.
309
310Michael G. Brown. The Role of BSD in the Development of Unix.
311Presented to the Tasmanian Unix Special Interest Group of the
312Australian Computer Society, Hobart, August 1993.
313
314Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
315URL: http://www.byte.com/art/9410/sec8/art3.htm
316
317Andreas Klemm, Lars K�ller. If you're going to San Francisco ...
318Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
319
320BSD Release Announcements collection.
321URL: http://www.de.FreeBSD.org/de/ftp/releases/
322
323BSD Hypertext Man Pages
324http://www.FreeBSD.org/cgi/man.cgi
325
326UNIX history graphing project
327http://minnie.cs.adfa.edu.au/Unix_History/index.html
328
329UNIX history
330http://perso.wanadoo.fr/levenez/unix/
331
332Acknowledgments
333---------------
334
335Josh Gilliam for suggestions, bug fixes, and finding very old
336original BSD announcements from Usenet or tapes.
337
338Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
339
340--
341Copyright (c) 1997-1999 Wolfram Schneider <wosch@FreeBSD.ORG>
342URL: ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/share/misc/bsd-family-tree
343
344$FreeBSD: head/share/misc/bsd-family-tree 65974 2000-09-17 09:13:15Z wosch $
345
346