1 The Unix system family tree / BSD history chart
2 -----------------------------------------------
14 Sixth Edition (V6) -----*
18 Seventh Edition (V7) |
22 \ 2BSD---------------*
30 *------ 4.1BSD --------------> 2.8BSD
32 Eighth Edition | 2.8.1BSD
34 | 4.1aBSD -----------\ |
38 | 4.1cBSD --------------> 2.9BSD
42 +----<--- 4.2BSD 2.9.1BSD
44 +----<--- 4.3BSD -------------> 2.10BSD
46 Ninth Edition | / 2.10.1BSD
47 | 4.3BSD Tahoe-----+ |
57 *---------- 4.3BSD NET/2 -------------------+-------------*
61 386BSD 0.1 ------------>+ | BSDI 1.0
66 | | 4.4BSD-Encumbered | |
69 FreeBSD 1.0 NetBSD 0.9 | |
70 | | .----- 4.4BSD Lite --> BSDI 2.0
73 FreeBSD 1.1.5 .---|--------' / | |
74 | / | / 4.4BSD Lite2 -> BSDI 2.1
75 FreeBSD 1.1.5.1 / | / / | | \ |
76 | / NetBSD 1.0 <-' / | | \ |
77 | / | / | | `-BSDI 3.0
78 FreeBSD 2.0 <--' | FreeBSD 3.0 | | |
80 FreeBSD 2.0.5 \ OpenBSD 2.3
84 | | NetBSD 1.1 ------.
87 | FreeBSD 2.1.6 | \ OpenBSD 2.0
89 | FreeBSD 2.1.6.1 | \ |
100 | FreeBSD 2.2.2 | OpenBSD 2.1
102 | FreeBSD 2.2.5 | \ |
103 | | | NetBSD 1.3.1 OpenBSD 2.2
105 | FreeBSD 2.2.6 | | OpenBSD 2.3
108 | FreeBSD 2.2.7 | | |
111 | FreeBSD 2.2.8 | | |
118 | FreeBSD 3.2 NetBSD 1.4 OpenBSD 2.5
125 FreeBSD 4.0-CURRENT | |
133 Time tolerance +/- 6 month, depend on which book/article you read; if
134 it was the announcement in Usenet or if it was available as tape.
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
160 First Edition 1971-11-03 [QCU]
161 DEC PDP-11/20, Assembler
162 Second Edition 1972-06-12 [QCU]
163 10 Unix installations
164 Third Edition 1973-02-xx [QCU]
165 Pipes, 16 installations
166 Fourth Edition 1973-11-xx [QCU]
167 rewriting in C effected,
168 above 30 installations
169 Fifth Edition 1974-06-xx [QCU]
170 above 50 installations
171 Sixth Edition 1975-05-xx [QCU]
173 Seventh Edition 1979-01-xx [QCU]
175 Eight 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
182 Ninth Edition 1986-09-xx [QCU]
183 Tenth Edition 1989-10-xx [QCU]
187 PDP-11, Pascal, ex(1)
188 30 free copies of 1BSD sent out
189 35 tapes sold for 50 USD [QCU]
191 75 2BSD tapes shipped
193 2.8BSD 1981-07-xx [KSJ]
195 2.8.1BSD 1982-01-xx [QCU]
196 set of performance improvements
197 2.9BSD 1983-07-xx [KSJ]
199 2.9BSD-Seismo 1985-08-xx [SMS]
200 2.10BSD 1987-04-xx [KKK]
201 2.10.1BSD 1989-01-xx [SMS]
202 2.11BSD 1992-02-xx [SMS]
203 2.11BSD rev #366 1997-02-xx [SMS]
205 32V 1978-1[01]-xx [QCU]
207 virtual memory, page replacement,
212 alpha release, 100 sites, networking [44B]
213 4.1bBSD internal release, fast filesystem [44B]
215 beta release, IPC [44B]
216 4.2BSD 1983-09-xx [QCU]
217 4.3BSD 1986-06-xx [QCU]
219 4.3BSD Tahoe 1988-06-xx [QCU]
220 4.3BSD NET/1 1988-11-xx [QCU]
221 4.3BSD Reno 1990-06-xx [QCU], [DOC]
222 4.3BSD NET/2 1991-06-xx [QCU]
223 386BSD 0.0 1992-02-xx [DOC]
224 386BSD 0.1 1992-07-xx [DOC]
225 4.4BSD Alpha 1992-07-07
226 NetBSD 0.8 1993-04-19 [NBD]
227 4.4BSD 1993-06-01 [USE]
228 NetBSD 0.9 1993-08-23 [NBD]
229 FreeBSD 1.0 1993-11-xx [FOO]
230 4.4BSD Lite 1994-03-01 [USE]
231 FreeBSD 1.1 1994-04-xx [FBD]
232 FreeBSD 1.1.5.1 1994-07-xx [FBD]
233 supersedes 1.1.5 3 days after release.
234 NetBSD 1.0 1994-11-08 [NBD]
235 386BSD 1.0 1994-11-12 [USE]
236 FreeBSD 2.0 1995-01-xx [FBD]
237 FreeBSD 2.0.5 1995-06-xx [FBD]
238 4.4BSD Lite Release 2 1995-06-xx [44B]
239 the true final distribution from the CSRG
240 NetBSD 1.1 1995-11-26 [NBD]
241 FreeBSD 2.1 1995-12-xx [FBD]
242 FreeBSD 2.1.5 1996-08-xx [FBD]
243 NetBSD 1.2 1996-10-04 [NBD]
244 OpenBSD 2.0 1996-10-18 [OBD]
245 FreeBSD 2.1.6 1996-12-xx [FBD]
246 FreeBSD 2.1.7 1997-02-xx [FBD]
247 FreeBSD 2.2.1 1997-04-xx [FBD]
248 NetBSD 1.2.1 1997-05-20 [NBD]
249 OpenBSD 2.1 1997-06-01 [OBD]
250 FreeBSD 2.2.2 1997-06-xx [FBD]
251 NetBSD 1.3 1997-09-24 [NBD]
252 FreeBSD 2.2.5 1997-11-xx [FBD]
253 OpenBSD 2.2 1997-12-01 [OBD]
254 FreeBSD 2.2.6 1998-03-xx [FBD]
255 OpenBSD 2.3 1998-05-19 [OBD]
256 NetBSD 1.3.2 1998-05-24 [NBD]
257 FreeBSD 2.2.7 1998-07-xx [FBD]
258 FreeBSD 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
262 FreeBSD 2.2.8 1998-11-29 [FBD]
263 OpenBSD 2.4 1998-12-01 [OBD]
264 NetBSD 1.3.3 1998-12-23 [NBD]
265 FreeBSD 3.1 1999-02-15 [FBD]
266 FreeBSD 3.2 1999-05-17 [FBD]
267 OpenBSD 2.5 1999-05-19 [OBD]
268 FreeBSD 3.3 1999-09-17 [FBD]
269 OpenBSD 2.6 1999-12-01 [OBD]
270 FreeBSD 3.4 1999-12-20 [FBD]
274 ------------------------
276 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
277 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
278 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
280 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
281 Company, Inc., 1994. ISBN 0-201-54777-5
283 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
284 Quarterman. The Design and Implementation of the 4.4BSD Operating
285 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
287 Doug McIlroy. Research Unix Reader.
289 Michael G. Brown. The Role of BSD in the Development of Unix.
290 Presented to the Tasmanian Unix Special Interest Group of the
291 Australian Computer Society, Hobart, August 1993.
292 URL: http://www.dpac.tas.gov.au/~mgb/papers/bsdrole.html
294 Peter H. Salus. Unix at 25. Byte Magazin, October 1994.
295 URL: http://www.byte.com/art/9410/sec8/art3.htm
297 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
298 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
299 URL: http://www.heise.de
301 BSD Release Announcements collection.
302 URL: http://www.de.FreeBSD.ORG/de/ftp/releases/
304 BSD Hypertext Man Pages
305 http://www.freebsd.org/cgi/man.cgi
310 Josh Gilliam for suggestions, bugfixes, and finding very old
311 original BSD announcements from Usenet or tapes.
313 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
316 Copyright (c) 1997-1999 Wolfram Schneider <wosch@FreeBSD.ORG>
317 URL: ftp://ftp.freebsd.org/pub/FreeBSD/FreeBSD-current/src/share/misc/bsd-family-tree