| blob | aa1a5c6275cbbcbb290b3dc4ef5ee4b57d97033f |
1 The UNIX system family tree: Research and BSD
2 ---------------------------------------------
4 First Edition (V1)
5 |
6 Second Edition (V2)
7 |
8 Third Edition (V3)
9 |
10 Fourth Edition (V4)
11 |
12 Fifth Edition (V5)
13 |
14 Sixth Edition (V6) -----*
15 \ |
16 \ |
17 \ |
18 Seventh Edition (V7) |
19 \ |
20 \ 1BSD
21 32V |
22 \ 2BSD---------------*
23 \ / |
24 \ / |
25 \/ |
26 3BSD |
27 | |
28 4.0BSD 2.79BSD
29 | |
30 4.1BSD --------------> 2.8BSD
31 | |
32 4.1aBSD -----------\ |
33 | \ |
34 4.1bBSD \ |
35 | \ |
36 *------ 4.1cBSD --------------> 2.9BSD
37 / | |
38 Eighth Edition | 2.9BSD-Seismo
39 | | |
40 +----<--- 4.2BSD 2.9.1BSD
41 | | |
42 +----<--- 4.3BSD -------------> 2.10BSD
43 | | / |
44 Ninth Edition | / 2.10.1BSD
45 | 4.3BSD Tahoe-----+ |
46 | | \ |
47 | | \ |
48 v | 2.11BSD
49 Tenth Edition | |
50 | 2.11BSD rev #430
51 4.3BSD NET/1 |
52 | v
53 4.3BSD Reno
54 |
55 *---------- 4.3BSD NET/2 -------------------+-------------*
56 | | | |
57 386BSD 0.0 | | BSD/386 ALPHA
58 | | | |
59 386BSD 0.1 ------------>+ | BSD/386 0.3.[13]
60 | \ | 4.4BSD Alpha |
61 | 386BSD 1.0 | | BSD/386 0.9.[34]
62 | | 4.4BSD |
63 | | / | |
64 | | 4.4BSD-Encumbered | |
65 | NetBSD 0.8 | BSD/386 1.0
66 | | | |
67 FreeBSD 1.0 NetBSD 0.9 | BSD/386 1.1
68 | | .----- 4.4BSD Lite |
69 FreeBSD 1.1 | / / | \ |
70 | | / / | \ |
71 FreeBSD 1.1.5 .---|--------' / | \ |
72 | / | / | \ |
73 FreeBSD 1.1.5.1 / | / | \ |
74 | / NetBSD 1.0 <-' | \ |
75 | / | | \ |
76 FreeBSD 2.0 <--' | | BSD/OS 2.0
77 | \ | |
78 FreeBSD 2.0.5 \ | BSD/OS 2.0.1
79 | .-----\------------- 4.4BSD Lite2 |
80 | | \ | | | | |
81 | | .-----|------Rhapsody | | | |
82 | | | | NetBSD 1.3 | | |
83 | | | | OpenBSD 2.3 | |
84 | | | | BSD/OS 3.0 |
85 FreeBSD 2.1 | | | |
86 | | | | NetBSD 1.1 ------. BSD/OS 2.1
87 | FreeBSD 2.1.5 | | | \ |
88 | | | | NetBSD 1.2 \ BSD/OS 3.0
89 | FreeBSD 2.1.6 | | | \ OpenBSD 2.0 |
90 | | | | | \ | |
91 | FreeBSD 2.1.6.1 | | | \ | |
92 | | | | | \ | |
93 | FreeBSD 2.1.7 | | | | | |
94 | | | | | NetBSD 1.2.1 | |
95 | FreeBSD 2.1.7.1 | | | | |
96 | | | | | |
97 | | | | | |
98 *-FreeBSD 2.2 | | | | |
99 | \ | | | | |
100 | FreeBSD 2.2.1 | | | | |
101 | | | | | | |
102 | FreeBSD 2.2.2 | | | OpenBSD 2.1 |
103 | | | | | | |
104 | FreeBSD 2.2.5 | | | | |
105 | | | | | OpenBSD 2.2 |
106 | | | | NetBSD 1.3 | |
107 | FreeBSD 2.2.6 | | | | | |
108 | | | | | NetBSD 1.3.1 | BSD/OS 3.1
109 | | | | | | OpenBSD 2.3 |
110 | | | | | NetBSD 1.3.2 | |
111 | FreeBSD 2.2.7 | | | | | |
112 | | | | | | | BSD/OS 4.0
113 | v | | | | | |
114 | FreeBSD 2.2.8 | | | | | |
115 | | | | | OpenBSD 2.4 |
116 FreeBSD 3.0 <--------* | | v | |
117 | | | NetBSD 1.3.3 | |
118 *---FreeBSD 3.1 | | | |
119 | | | | | BSD/OS 4.0.1
120 | FreeBSD 3.2----* | NetBSD 1.4 OpenBSD 2.5 |
121 | | | | | | | | |
122 | | | | | | | | |
123 | | | | | | | | |
124 | FreeBSD 3.3 | | | | NetBSD 1.4.1 | |
125 | | | | | | | OpenBSD 2.6 |
126 | FreeBSD 3.4 | | | | | | |
127 | | | | | | | | BSD/OS 4.1
128 FreeBSD 4.0 | | | | | NetBSD 1.4.2 | |
129 | | | | | | | | |
130 | | | | | | | | |
131 | FreeBSD 3.5 | | | | | OpenBSD 2.7 |
132 | | | | | | | | |
133 | FreeBSD 3.5.1 | | | | | | |
134 | | | | | | | |
135 *---FreeBSD 4.1 | | | | | | |
136 | | | | (?) | | | |
137 | FreeBSD 4.1.1 | | / | | | |
138 | | | | / | | | |
139 | FreeBSD 4.2 Darwin/ | NetBSD 1.4.3 | |
140 | | Mac OS X | OpenBSD 2.8 BSD/OS 4.2
141 | | | | | |
142 | | | | | |
143 | | 10.0 NetBSD 1.5 | |
144 | FreeBSD 4.3 | | | | |
145 | | | | | OpenBSD 2.9 |
146 | | | | NetBSD 1.5.1 | |
147 | | | | | | |
148 | FreeBSD 4.4-. | | NetBSD 1.5.2 | |
149 | | | Mac OS X | | | |
150 | | | 10.1 | | OpenBSD 3.0 |
151 | FreeBSD 4.5 | | | | | |
152 | | \ | | | | BSD/OS 4.3
153 | FreeBSD 4.6 \ | | | OpenBSD 3.1 |
154 | | \ | | NetBSD 1.5.3 | |
155 | FreeBSD 4.6.2 Mac OS X | | |
156 | | 10.2 | | |
157 | FreeBSD 4.7 | | | |
158 | | | NetBSD 1.6 OpenBSD 3.2 |
159 | FreeBSD 4.8 | | | | |
160 | | | | NetBSD 1.6.1 | |
161 | |--------. | | | OpenBSD 3.3 BSD/OS 5.0
162 | | \ | | | | |
163 | FreeBSD 4.9 | | | | OpenBSD 3.4 BSD/OS 5.1 ISE
164 | | | | | | |
165 | | | | | NetBSD 1.6.2 |
166 | | | | | | |
167 | | | | | | OpenBSD 3.5
168 | | | | | v |
169 | FreeBSD 4.10 | | | |
170 | | | | | |
171 | FreeBSD 4.11 | | | |
172 | | | | |
173 | `-|------|-----------------|---------------------.
174 | | | | \
175 FreeBSD 5.0 | | | |
176 | | | | |
177 FreeBSD 5.1 | | | DragonFly 1.0
178 | \ | | | |
179 | ----- Mac OS X | | |
180 | 10.3 | | |
181 FreeBSD 5.2 | | | |
182 | | | | | |
183 | FreeBSD 5.2.1 | | | |
184 | | | | |
185 *-------FreeBSD 5.3 | | | |
186 | | | | OpenBSD 3.6 |
187 | | | NetBSD 2.0 | |
188 | | | | | | | DragonFly 1.2.0
189 | | Mac OS X | | NetBSD 2.0.2 | |
190 | | 10.4 | | | | |
191 | FreeBSD 5.4 | | | | | |
192 | | | | | | OpenBSD 3.7 |
193 | | | | | NetBSD 2.0.3 | |
194 | | | | | | | |
195 *--FreeBSD | | | | v OpenBSD 3.8 |
196 | 6.0 | | | | | |
197 | | | | | \ | |
198 | | | | | NetBSD 2.1 | |
199 | | | | | | |
200 | | | | NetBSD 3.0 | |
201 | | | | | | | | DragonFly 1.4.0
202 | | | | | | | OpenBSD 3.9 |
203 | FreeBSD | | | | | | |
204 | 6.1 | | | | | | |
205 | | FreeBSD 5.5 | | | | | |
206 | | | | | NetBSD 3.0.1 | DragonFly 1.6.0
207 | | | | | | | |
208 | | | | | | OpenBSD 4.0 |
209 | | | | | NetBSD 3.0.2 | |
210 | | | | NetBSD 3.1 | |
211 | FreeBSD 6.2 | | | |
212 | | | | | DragonFly 1.8.0
213 | | | | OpenBSD 4.1 |
214 | | | | | DragonFly 1.10.0
215 | | Mac OS X | | |
216 | | 10.5 | | |
217 | | | | OpenBSD 4.2 |
218 | | | NetBSD 4.0 | |
219 | FreeBSD 6.3 | | | |
220 | \ | | | |
221 *--FreeBSD | | | | DragonFly 1.12.0
222 | 7.0 | | | | |
223 | | | | | OpenBSD 4.3 |
224 | | | | | | DragonFly 2.0.0
225 | | FreeBSD | | OpenBSD 4.4 |
226 | | 6.4 | | | |
227 | | | | | |
228 | FreeBSD 7.1 | | | |
229 | | | | | DragonFly 2.2.0
230 | FreeBSD 7.2 | NetBSD 5.0 OpenBSD 4.5 |
231 | \ | | | | |
232 | | Mac OS X | | | |
233 | | 10.6 | | | |
234 | | | | | | DragonFly 2.4.0
235 | | | | | OpenBSD 4.6 |
236 | | | | | | |
237 *--FreeBSD | | | | | |
238 | 8.0 | | | | | |
239 | | FreeBSD | | | | |
240 | | 7.3 | | | | DragonFly 2.6.0
241 | | | | | | OpenBSD 4.7 |
242 | FreeBSD | | | | | |
243 | 8.1 | | | | | |
244 | | | | | | | DragonFly 2.8.2
245 | | | | | | OpenBSD 4.8 |
246 | | | | | NetBSD 5.1 | |
247 | FreeBSD FreeBSD | | | |
248 | 8.2 7.4 | | | DragonFly 2.10.1
249 | v | | OpenBSD 4.9 |
250 | Mac OS X | | |
251 | 10.7 | | |
252 | | | OpenBSD 5.0 |
253 +--FreeBSD | | | |
254 | 9.0 | | | |
255 | v | | | |
256 | | | | |
257 FreeBSD 10 -current | NetBSD -current OpenBSD -current |
258 | | | | |
259 v v v v v
261 Time
262 ----------------
264 Time tolerance +/- 6 months, depending on which book/article you read; if it
265 was the announcement in Usenet or if it was available as tape.
267 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
268 and John Quarterman. The Design and Implementation of
269 the 4.4BSD Operating System.
270 [APL] Apple website [http://www.apple.com/macosx/]
271 [BSDI] Berkeley Software Design, Inc.
272 [DFB] DragonFlyBSD Project, The.
273 [DOC] README, COPYRIGHT on tape.
274 [FBD] FreeBSD Project, The.
275 [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
276 Volume 11, Info 4, April, 1987.
277 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
278 comp.bugs.4bsd.ucb-fixes, June 15, 1988.
279 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
280 Changes in the Kernel in 2.9BSD. Second Berkeley Software
281 Distribution UNIX Version 2.9, July, 1983.
282 [NBD] NetBSD Project, The.
283 [OBD] OpenBSD Project, The.
284 [QCU] Salus, Peter H. A quarter century of UNIX.
285 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
286 [TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/.
287 [USE] Usenet announcement.
288 [WRS] Wind River Systems, Inc.
289 [dmr] Dennis Ritchie, via E-Mail
291 Multics 1965
292 UNIX Summer 1969
293 DEC PDP-7
294 First Edition 1971-11-03 [QCU]
295 DEC PDP-11/20, Assembler
296 Second Edition 1972-06-12 [QCU]
297 10 UNIX installations
298 Third Edition 1973-02-xx [QCU]
299 Pipes, 16 installations
300 Fourth Edition 1973-11-xx [QCU]
301 rewriting in C effected,
302 above 30 installations
303 Fifth Edition 1974-06-xx [QCU]
304 above 50 installations
305 Sixth Edition 1975-05-xx [QCU]
306 port to DEC Vax
307 Seventh Edition 1979-01-xx [QCU]
308 first portable UNIX
309 Eighth Edition 1985-02-xx [QCU]
310 VAX 11/750, VAX 11/780 [dmr]
311 descended from 4.1c BSD [dmr]
312 descended from 4.1 BSD [44B]
313 scooping-out and replacement of the character-device
314 and networking part by the streams mechanism
316 Ninth Edition 1986-09-xx [QCU]
317 Tenth Edition 1989-10-xx [QCU]
319 1BSD late 1977
320 1978-03-09 [QCU]
321 PDP-11, Pascal, ex(1)
322 30 free copies of 1BSD sent out
323 35 tapes sold for 50 USD [QCU]
324 2BSD mid 1978 [QCU] 1979-05-10 [TUHS]
325 75 2BSD tapes shipped
326 2.79BSD 1980-04-xx [TUHS]
327 2.8BSD 1981-07-xx [KSJ]
329 2.8.1BSD 1982-01-xx [QCU]
330 set of performance improvements
331 2.9BSD 1983-07-xx [KSJ]
332 2.9.1BSD 1983-11-xx [TUHS]
333 2.9BSD-Seismo 1985-08-xx [SMS]
334 2.10BSD 1987-04-xx [KKK]
335 2.10.1BSD 1989-01-xx [SMS]
336 2.11BSD 1992-02-xx [SMS]
337 2.11BSD rev #430 1999-12-13 [SMS]
339 32V 1978-1[01]-xx [QCU]
340 3BSD late 1979 [QCU] March 1980 [TUHS]
341 virtual memory, page replacement,
342 demand paging
343 4.0BSD 1980-10-xx
344 4.1BSD 1981-07-08 [DOC]
345 4.1aBSD 1982-04-xx
346 alpha release, 100 sites, networking [44B]
347 4.1bBSD internal release, fast filesystem [44B]
348 4.1cBSD late 1982
349 beta release, IPC [44B]
350 4.2BSD 1983-09-xx [QCU]
351 1983-08-03 [DOC]
352 4.3BSD 1986-06-xx [QCU]
353 1986-04-05 [KB], [DOC]
354 4.3BSD Tahoe 1988-06-15 [QCU], [DOC]
355 4.3BSD NET/1 1988-11-xx [QCU]
356 1989-01-01 [DOC]
357 4.3BSD Reno 1990-06-29 [QCU], [DOC]
358 4.3BSD NET/2 1991-06-28 [QCU], [DOC]
360 BSD/386 ALPHA 1991-12-xx [BSDI]
361 first code released to people outside BSDI
362 386BSD 0.0 1992-02-xx [DOC]
363 BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers
364 BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version
365 386BSD 0.1 1992-07-28 [DOC]
366 4.4BSD Alpha 1992-07-07
367 BSD/386 0.9.3 1992-10-xx [BSDI]
368 first external gamma; G customers
369 BSD/386 0.9.4 1992-12-xx [BSDI]
370 would have been 1.0 except for request
371 for preliminary injunction
372 BSD/386 1.0 1993-03-xx [BSDI]
373 injunction denied; first official release
374 NetBSD 0.8 1993-04-20 [NBD]
375 4.4BSD 1993-06-01 [USE]
376 NetBSD 0.9 1993-08-23 [NBD]
377 FreeBSD 1.0 1993-11-01 [FBD]
378 FreeBSD 1.0.2 1993-11-14 [FBD]
379 supersedes 1.0 13 days after release.
380 BSD/386 1.1 1994-02-xx [BSDI]
381 4.4BSD Lite 1994-03-01 [USE]
382 FreeBSD 1.1 1994-05-07 [FBD]
383 FreeBSD 1.1.5 1994-06-30 [FBD]
384 FreeBSD 1.1.5.1 1994-07-05 [FBD]
385 supersedes 1.1.5 5 days after release.
386 NetBSD 1.0 1994-10-26 [NBD]
387 386BSD 1.0 1994-11-12 [USE]
388 FreeBSD 2.0 1994-11-23 [FBD]
389 BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based
390 FreeBSD 2.0.5 1995-06-10 [FBD]
391 BSD/OS 2.0.1 1995-06-xx [BSDI]
392 4.4BSD Lite Release 2 1995-06-xx [44B]
393 the true final distribution from the CSRG
394 FreeBSD 2.1.0 1995-11-19 [FBD]
395 NetBSD 1.1 1995-11-26 [NBD]
396 BSD/OS 2.1 1996-01-xx [BSDI]
397 FreeBSD 2.1.5 1996-07-14 [FBD]
398 NetBSD 1.2 1996-10-04 [NBD]
399 OpenBSD 2.0 1996-10-18 [OBD]
400 FreeBSD 2.1.6 1996-11-16 [FBD]
401 FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release)
402 Rhapsody 1997-xx-xx
403 FreeBSD 2.1.7 1997-02-20 [FBD]
404 BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based
405 FreeBSD 2.2.0 1997-03-16 [FBD]
406 FreeBSD 2.2.1 1997-03-25 [FBD]
407 FreeBSD 2.2.2 1997-05-16 [FBD]
408 NetBSD 1.2.1 1997-05-20 [NBD] (patch release)
409 OpenBSD 2.1 1997-06-01 [OBD]
410 FreeBSD 2.2.5 1997-10-22 [FBD]
411 OpenBSD 2.2 1997-12-01 [OBD]
412 NetBSD 1.3 1998-01-04 [NBD]
413 FreeBSD 2.2.6 1998-03-25 [FBD]
414 NetBSD 1.3.1 1998-03-09 [NBD] (patch release)
415 BSD/OS 3.1 1998-03-xx [BSDI]
416 OpenBSD 2.3 1998-05-19 [OBD]
417 NetBSD 1.3.2 1998-05-29 [NBD] (patch release)
418 FreeBSD 2.2.7 1998-07-22 [FBD]
419 BSD/OS 4.0 1998-08-xx [BSDI]
420 2-lock MP support, ELF executables
421 FreeBSD 3.0 1998-10-16 [FBD]
422 FreeBSD-3.0 is a snapshot from -current,
423 while 3.1 and 3.2 are from 3.x-stable which
424 was branched quite some time after 3.0-release
425 FreeBSD 2.2.8 1998-11-29 [FBD]
426 OpenBSD 2.4 1998-12-01 [OBD]
427 NetBSD 1.3.3 1998-12-23 [NBD] (patch release)
428 FreeBSD 3.1 1999-02-15 [FBD]
429 BSD/OS 4.0.1 1999-03-xx [BSDI]
430 NetBSD 1.4 1999-05-12 [NBD]
431 FreeBSD 3.2 1999-05-17 [FBD]
432 OpenBSD 2.5 1999-05-19 [OBD]
433 NetBSD 1.4.1 1999-08-26 [NBD] (patch release)
434 FreeBSD 3.3 1999-09-17 [FBD]
435 OpenBSD 2.6 1999-12-01 [OBD]
436 FreeBSD 3.4 1999-12-20 [FBD]
437 BSD/OS 4.1 1999-12-xx [BSDI]
438 FreeBSD 4.0 2000-03-13 [FBD]
439 NetBSD 1.4.2 2000-03-19 [NBD] (patch release)
440 OpenBSD 2.7 2000-06-15 [OBD]
441 FreeBSD 3.5 2000-06-24 [FBD]
442 FreeBSD 4.1 2000-07-27 [FBD]
443 FreeBSD 3.5.1 2000-07-28 [FBD]
444 FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release)
445 FreeBSD 4.2 2000-11-21 [FBD]
446 NetBSD 1.4.3 2000-11-25 [NBD] (patch release)
447 BSD/OS 4.2 2000-11-29 [BSDI]
448 OpenBSD 2.8 2000-12-01 [OBD]
449 NetBSD 1.5 2000-12-06 [NBD]
450 Mac OS X 10.0 2001-03-24 [APL]
451 FreeBSD 4.3 2001-04-20 [FBD]
452 OpenBSD 2.9 2001-06-01 [OBD]
453 NetBSD 1.5.1 2001-07-11 [NBD] (patch release)
454 NetBSD 1.5.2 2001-09-13 [NBD] (patch release)
455 FreeBSD 4.4 2001-09-18 [FBD]
456 Mac OS X 10.1 2001-09-29 [APL]
457 OpenBSD 3.0 2001-12-01 [OBD]
458 FreeBSD 4.5 2002-01-29 [FBD]
459 BSD/OS 4.3 2002-03-14 [WRS]
460 OpenBSD 3.1 2002-05-19 [OBD]
461 FreeBSD 4.6 2002-06-15 [FBD]
462 NetBSD 1.5.3 2002-07-22 [NBD] (patch release)
463 FreeBSD 4.6.2 2002-08-15 [FBD] (patch release)
464 Mac OS X 10.2 2002-08-23 [APL]
465 NetBSD 1.6 2002-09-14 [NBD]
466 FreeBSD 4.7 2002-10-08 [FBD]
467 OpenBSD 3.2 2002-11-01 [OBD]
468 FreeBSD 5.0 2003-01-17 [FBD]
469 FreeBSD 5.0 is a separate branch off of
470 -current, similar to 3.0.
471 FreeBSD 4.8 2003-04-03 [FBD]
472 NetBSD 1.6.1 2003-04-21 [NBD] (patch release)
473 OpenBSD 3.3 2003-05-01 [OBD]
474 BSD/OS 5.0 2003-05-?? [WRS]
475 FreeBSD 5.1 2003-06-09 [FBD]
476 Mac OS X 10.3 2003-10-24 [APL]
477 FreeBSD 4.9 2003-10-28 [FBD]
478 BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version)
479 OpenBSD 3.4 2003-11-01 [OBD]
480 FreeBSD 5.2 2004-01-12 [FBD]
481 FreeBSD 5.2.1 2004-02-22 [FBD] (patch release)
482 NetBSD 1.6.2 2004-03-01 [NBD] (patch release)
483 OpenBSD 3.5 2004-04-01 [OBD]
484 FreeBSD 4.10 2004-05-27 [FBD]
485 DragonFly 1.0 2004-07-12 [DFB]
486 OpenBSD 3.6 2004-10-29 [OBD]
487 FreeBSD 5.3 2004-11-06 [FBD]
488 NetBSD 2.0 2004-12-09 [NBD]
489 FreeBSD 4.11 2005-01-25 [FBD]
490 DragonFly 1.2.0 2005-04-08 [DFB]
491 NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release)
492 Mac OS X 10.4 2005-04-29 [APL]
493 FreeBSD 5.4 2005-05-09 [FBD]
494 OpenBSD 3.7 2005-05-19 [OBD]
495 NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release)
496 OpenBSD 3.8 2005-11-01 [OBD]
497 FreeBSD 6.0 2005-11-01 [FBD]
498 NetBSD 2.1 2005-11-02 [NBD]
499 NetBSD 3.0 2005-12-23 [NBD]
500 DragonFly 1.4.0 2006-01-08 [DFB]
501 OpenBSD 3.9 2006-05-01 [OBD]
502 FreeBSD 6.1 2006-05-08 [FBD]
503 FreeBSD 5.5 2006-05-25 [FBD]
504 NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release)
505 DragonFly 1.6.0 2006-07-24 [DFB]
506 OpenBSD 4.0 2006-11-01 [OBD]
507 NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release)
508 NetBSD 3.1 2006-11-04 [NBD]
509 FreeBSD 6.2 2007-01-15 [FBD]
510 DragonFly 1.8.0 2007-01-30 [DFB]
511 OpenBSD 4.1 2007-05-01 [OBD]
512 DragonFly 1.10.0 2007-08-06 [DFB]
513 Mac OS X 10.5 2007-10-26 [APL]
514 OpenBSD 4.2 2007-11-01 [OBD]
515 NetBSD 4.0 2007-12-19 [NBD]
516 FreeBSD 6.3 2008-01-18 [FBD]
517 DragonFly 1.12.0 2008-02-26 [DFB]
518 FreeBSD 7.0 2008-02-27 [FBD]
519 OpenBSD 4.3 2008-05-01 [OBD]
520 DragonFly 2.0.0 2008-07-21 [DFB]
521 OpenBSD 4.4 2008-11-01 [OBD]
522 FreeBSD 6.4 2008-11-28 [FBD]
523 FreeBSD 7.1 2009-01-04 [FBD]
524 DragonFly 2.2.0 2009-02-17 [DFB]
525 NetBSD 5.0 2009-04-29 [NBD]
526 OpenBSD 4.5 2009-05-01 [OBD]
527 FreeBSD 7.2 2009-05-04 [FBD]
528 Mac OS X 10.6 2009-06-08 [APL]
529 DragonFly 2.4.0 2009-09-16 [DFB]
530 OpenBSD 4.6 2009-10-18 [OBD]
531 FreeBSD 8.0 2009-11-26 [FBD]
532 FreeBSD 7.3 2010-03-23 [FBD]
533 DragonFly 2.6.0 2010-03-28 [DFB]
534 OpenBSD 4.7 2010-05-19 [OBD]
535 FreeBSD 8.1 2010-07-24 [FBD]
536 DragonFly 2.8.2 2010-10-30 [DFB]
537 OpenBSD 4.8 2010-11-01 [OBD]
538 NetBSD 5.1 2010-11-19 [NBD]
539 FreeBSD 7.4 2011-02-24 [FBD]
540 FreeBSD 8.2 2011-02-24 [FBD]
541 DragonFly 2.10.1 2011-04-26 [DFB]
542 OpenBSD 4.9 2011-05-01 [OBD]
543 Mac OS X 10.7 2011-07-20 [APL]
544 OpenBSD 5.0 2011-11-01 [OBD]
545 FreeBSD 9.0 2012-01-12 [FBD]
547 Bibliography
548 ------------------------
550 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
551 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
552 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
554 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
555 Company, Inc., 1994. ISBN 0-201-54777-5
557 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
558 Quarterman. The Design and Implementation of the 4.4BSD Operating
559 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
561 McKusick, Marshall Kirk, George Neville-Neil. The Design and
562 Implementation of the FreeBSD Operating System.
563 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
565 Doug McIlroy. Research Unix Reader.
567 Michael G. Brown. The Role of BSD in the Development of Unix.
568 Presented to the Tasmanian Unix Special Interest Group of the
569 Australian Computer Society, Hobart, August 1993.
571 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
572 URL: http://www.byte.com/art/9410/sec8/art3.htm
574 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
575 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
577 BSD Release Announcements collection.
578 URL: http://www.FreeBSD.org/releases/
580 BSD Hypertext Man Pages
581 URL: http://www.FreeBSD.org/cgi/man.cgi
583 UNIX history graphing project
584 URL: http://minnie.tuhs.org/Unix_History/index.html
586 UNIX history
587 URL: http://www.levenez.com/unix/
589 James Howard: The BSD Family Tree
590 URL: http://ezine.daemonnews.org/200104/bsd_family.html
591 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
594 Acknowledgments
595 ---------------
597 Josh Gilliam for suggestions, bug fixes, and finding very old
598 original BSD announcements from Usenet or tapes.
600 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
602 --
603 Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
604 URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
606 $FreeBSD: src/share/misc/bsd-family-tree,v 1.150 2012/01/13 06:18:23 maxim Exp $