bsd-family-tree revision 55389
1The Unix system family tree / BSD history chart
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      /           |                      |
32Eighth Edition     |                 2.8.1BSD
33     |            |                      |
34     |        4.1aBSD -----------\       |
35     |            |                \     |
36     |        4.1bBSD                \   |
37     |            |                    \ |
38     |        4.1cBSD --------------> 2.9BSD
39     |            |                      |
40     |            |                   2.9BSD-Seismo
41     |            |                      |
42     +----<--- 4.2BSD               2.9.1BSD
43     |            |                      |
44     +----<--- 4.3BSD -------------> 2.10BSD
45     |            |               /      |
46Ninth Edition     |              / 2.10.1BSD
47     |         4.3BSD Tahoe-----+        |
48     |            |              \       |
49     |            |                \     |
50     v            |                  2.11BSD
51Tenth Edition     |                      |
52                  |                  2.11BSD rev #366
53               4.3BSD NET/1              |
54                  |                      v
55               4.3BSD Reno
56                  |
57   *---------- 4.3BSD NET/2 -------------------+-------------*
58   |                    |                      |             |
59386BSD 0.0              |                      |             |
60   |                    |                      |             |
61386BSD 0.1 ------------>+                      |           BSDI 1.0
62   |     \              |                  4.4BSD Alpha      |
63   |     386BSD 1.0     |                      |             |
64   |                    |                  4.4BSD            |
65   |                    |                    / |             |
66   |                    |   4.4BSD-Encumbered  |             |
67   |                 NetBSD 0.8                |             |
68   |                    |                      |             |
69FreeBSD 1.0          NetBSD 0.9                |             |
70   |                    |           .----- 4.4BSD Lite --> BSDI 2.0
71FreeBSD 1.1             |          /   /       |             |
72   |                    |         /   /        |           BSDI 2.0.1
73FreeBSD 1.1.5       .---|--------'   /         |             |
74   |               /    |           /      4.4BSD Lite2 -> BSDI 2.1
75FreeBSD 1.1.5.1   /     |          /      /    |    | \      |
76   |             /   NetBSD 1.0 <-'      /     |    |   \    |
77   |            /       |              /       |    |    `-BSDI 3.0
78FreeBSD 2.0 <--'        |         FreeBSD 3.0  |    |        |
79   |                     \               NetBSD 1.3 |        v
80FreeBSD 2.0.5             \                   OpenBSD 2.3
81   |                       \
82   |                        \
83FreeBSD 2.1                  |
84 |   |                    NetBSD 1.1 ------.
85 | FreeBSD 2.1.5             |              \
86 |     |                  NetBSD 1.2         \
87 | FreeBSD 2.1.6             |  \          OpenBSD 2.0
88 |     |                     |   \             |
89 | FreeBSD 2.1.6.1           |    \            |
90 |     |                     |     \           |
91 | FreeBSD 2.1.7             |      |          |
92 |     |                     |  NetBSD 1.2.1   |
93 | FreeBSD 2.1.7.1           |                 |
94 |                           |                 |
95 |                           |                 |
96 *-FreeBSD 2.2               |                 |
97 |        \                  |                 |
98 |     FreeBSD 2.2.1         |                 |
99 |         |                 |                 |
100 |     FreeBSD 2.2.2         |             OpenBSD 2.1
101 |         |              NetBSD 1.3           |
102 |     FreeBSD 2.2.5         |   \             |
103 |         |                 | NetBSD 1.3.1  OpenBSD 2.2
104 |         v                 |    |            |
105 |     FreeBSD 2.2.6         |    |          OpenBSD 2.3
106 |         |                 | NetBSD 1.3.2    |
107 |         v                 |    |            |
108 |     FreeBSD 2.2.7         |    |            |
109 |         |                 |    |            |
110 |         v                 |    |            |
111 |     FreeBSD 2.2.8         |    |            |
112 |                           |    |            |
113 |                           |    |        OpenBSD 2.4
114FreeBSD 3.0                  |    |            |
115 |                           | NetBSD 1.3.3    |
116 *---FreeBSD 3.1             |                 |
117 |       |                   |                 |
118 |   FreeBSD 3.2          NetBSD 1.4       OpenBSD 2.5
119 |       |                   |                 |
120 |   FreeBSD 3.3             |                 |
121 |       |                   |             OpenBSD 2.6
122 |   FreeBSD 3.4             |                 |
123 |                           |                 |
124 |                           |                 |
125FreeBSD 4.0-CURRENT          |                 |
126 |                           v                 v
127 v
128
129
130Time
131----------------
132
133Time tolerance +/- 6 month, depend on which book/article you read; if
134it was the announcement in Usenet or if it was available as tape.
135
136[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
137	and John Quarterman. The Design and Implementation of
138	the 4.4BSD Operating System.
139[DOC] README, COPYRIGHT on tape.
140[QCU] Salus, Peter H. A quarter century of UNIX.
141[U25] Peter H. Salus. Unix at 25.
142[USE] Usenet announcement.
143[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
144	Changes in the Kernel in 2.9BSD. Second Berkeley Software
145	Distribution UNIX Version 2.9, July, 1983.
146[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
147	Volume 11, Info 4, April, 1987.
148[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
149	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
150[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
151[FBD] FreeBSD Project, The.
152[NBD] NetBSD Project, The.
153[OBD] OpenBSD Project, The.
154[dmr] Dennis Ritchie, via E-Mail
155
156
157Multics                 1965
158Unix                    Summer 1969
159				DEC PDP-7
160First   Edition         1971-11-03 [QCU]
161				DEC PDP-11/20, Assembler
162Second  Edition         1972-06-12 [QCU]
163				10 Unix installations
164Third   Edition         1973-02-xx [QCU]
165				Pipes, 16 installations
166Fourth  Edition         1973-11-xx [QCU]
167				rewriting in C effected,
168                                above 30 installations
169Fifth   Edition         1974-06-xx [QCU]
170				above 50 installations
171Sixth   Edition         1975-05-xx [QCU]
172				port to DEC Vax
173Seventh Edition         1979-01-xx [QCU]
174				first portable Unix
175Eight   Edition         1985-02-xx [QCU]
176				VAX 11/750, VAX 11/780 [dmr]
177				descended from 4.1c BSD [dmr]
178				descended from 4.1 BSD [44B]
179			scooping-out and replacement of the character-device 
180			and networking part by the streams mechanism
181
182Ninth   Edition         1986-09-xx [QCU]
183Tenth   Edition         1989-10-xx [QCU]
184
1851BSD                    late 1977
186			1978-03-09 [QCU]
187				PDP-11, Pascal, ex(1)
188				30 free copies of 1BSD sent out
189				35 tapes sold for 50 USD [QCU]
1902BSD                    mid 1978 [QCU]
191				75 2BSD tapes shipped
1922.7.9BSD		?? [SMS]
1932.8BSD			1981-07-xx [KSJ]
194
1952.8.1BSD		1982-01-xx [QCU]
196				set of performance improvements
1972.9BSD			1983-07-xx [KSJ]
1982.9.1BSD                1983-11-xx
1992.9BSD-Seismo		1985-08-xx [SMS]
2002.10BSD			1987-04-xx [KKK]
2012.10.1BSD		1989-01-xx [SMS]
2022.11BSD			1992-02-xx [SMS]
2032.11BSD rev #366	1997-02-xx [SMS]
204
20532V			1978-1[01]-xx [QCU]
2063BSD                    late 1979 [QCU]
207				virtual memory, page replacement,
208                        	demand paging
2094.0BSD                  1980-10-xx
2104.1BSD                  1981-06-xx
2114.1aBSD                 1982-04-xx
212				alpha release, 100 sites, networking [44B]
2134.1bBSD				internal release, fast filesystem [44B]
2144.1cBSD                 late 1982
215				beta release, IPC [44B]
2164.2BSD                  1983-09-xx [QCU]
2174.3BSD                  1986-06-xx [QCU]
218			1986-04-xx [KB]
2194.3BSD Tahoe            1988-06-xx [QCU]
2204.3BSD NET/1            1988-11-xx [QCU]
2214.3BSD Reno             1990-06-xx [QCU], [DOC]
2224.3BSD NET/2            1991-06-xx [QCU]
223386BSD 0.0              1992-02-xx [DOC]
224386BSD 0.1              1992-07-xx [DOC]
2254.4BSD Alpha            1992-07-07
226NetBSD 0.8              1993-04-19 [NBD]
2274.4BSD                  1993-06-01 [USE]
228NetBSD 0.9              1993-08-23 [NBD]
229FreeBSD 1.0		1993-11-xx [FOO]
2304.4BSD Lite             1994-03-01 [USE]
231FreeBSD 1.1		1994-04-xx [FBD]
232FreeBSD 1.1.5.1		1994-07-xx [FBD]
233				supersedes 1.1.5 3 days after release.
234NetBSD 1.0              1994-11-08 [NBD]
235386BSD 1.0              1994-11-12 [USE]
236FreeBSD 2.0		1995-01-xx [FBD]
237FreeBSD 2.0.5		1995-06-xx [FBD]
2384.4BSD Lite Release 2	1995-06-xx [44B]
239				the true final distribution from the CSRG
240NetBSD 1.1              1995-11-26 [NBD]
241FreeBSD 2.1		1995-12-xx [FBD]
242FreeBSD 2.1.5		1996-08-xx [FBD]
243NetBSD 1.2              1996-10-04 [NBD]
244OpenBSD 2.0             1996-10-18 [OBD]
245FreeBSD 2.1.6		1996-12-xx [FBD]
246FreeBSD 2.1.7		1997-02-xx [FBD]
247FreeBSD 2.2.1		1997-04-xx [FBD]
248NetBSD 1.2.1            1997-05-20 [NBD]
249OpenBSD 2.1             1997-06-01 [OBD]
250FreeBSD 2.2.2		1997-06-xx [FBD]
251NetBSD 1.3              1997-09-24 [NBD]
252FreeBSD 2.2.5		1997-11-xx [FBD]
253OpenBSD 2.2             1997-12-01 [OBD]
254FreeBSD 2.2.6		1998-03-xx [FBD]
255OpenBSD 2.3             1998-05-19 [OBD]
256NetBSD 1.3.2            1998-05-24 [NBD]
257FreeBSD 2.2.7		1998-07-xx [FBD]
258FreeBSD 3.0		1998-10-16 [FBD]
259				FreeBSD-3.0 is a snapshot from -current, 
260				while 3.1 and 3.2 are from 3.x-stable which 
261				was branched quite some time after 3.0-release
262FreeBSD 2.2.8           1998-11-29 [FBD]
263OpenBSD 2.4             1998-12-01 [OBD]
264NetBSD 1.3.3            1998-12-23 [NBD]
265FreeBSD 3.1		1999-02-15 [FBD]
266FreeBSD 3.2             1999-05-17 [FBD]
267OpenBSD 2.5             1999-05-19 [OBD]
268FreeBSD 3.3             1999-09-17 [FBD]
269OpenBSD 2.6             1999-12-01 [OBD]
270FreeBSD 3.4             1999-12-20 [FBD]
271
272
273Bibliography
274------------------------
275
276Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
277Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
278System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
279
280Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
281Company, Inc., 1994. ISBN 0-201-54777-5
282
283McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
284Quarterman. The Design and Implementation of the 4.4BSD Operating
285System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
286
287Doug McIlroy. Research Unix Reader.
288
289Michael G. Brown. The Role of BSD in the Development of Unix.
290Presented to the Tasmanian Unix Special Interest Group of the
291Australian Computer Society, Hobart, August 1993.
292URL: http://www.dpac.tas.gov.au/~mgb/papers/bsdrole.html
293
294Peter H. Salus. Unix at 25. Byte Magazin, October 1994.
295URL: http://www.byte.com/art/9410/sec8/art3.htm
296
297Andreas Klemm, Lars K�ller. If you're going to San Francisco ...
298Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
299URL: http://www.heise.de
300
301BSD Release Announcements collection.
302URL: http://www.de.FreeBSD.ORG/de/ftp/releases/
303
304BSD Hypertext Man Pages
305http://www.freebsd.org/cgi/man.cgi
306
307Acknowledgments
308---------------
309
310Josh Gilliam for suggestions, bugfixes, and finding very old
311original BSD announcements from Usenet or tapes.
312
313Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
314
315--
316Copyright (c) 1997-1999 Wolfram Schneider <wosch@FreeBSD.ORG>
317URL: ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/share/misc/bsd-family-tree
318
319$FreeBSD: head/share/misc/bsd-family-tree 55389 2000-01-04 04:31:27Z billf $
320