bsd-family-tree revision 1.49 1 The UNIX system family tree: Research and BSD
2 ---------------------------------------------
3
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 | | | | | NetBSD 4.0.1 | 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 | | | | | NetBSD | DragonFly 2.4.0
235 | | | | | 5.0.1 OpenBSD 4.6 |
236 | | | | | | | |
237 *--FreeBSD | | | | | | |
238 | 8.0 | | | | | | |
239 | | FreeBSD | | | NetBSD | |
240 | | 7.3 | | | 5.0.2 | DragonFly 2.6.0
241 | | | | | | OpenBSD 4.7 |
242 | FreeBSD | | | | | |
243 | 8.1 | | | | | |
244 | | | | | | | DragonFly 2.8.2
245 | | | | | \ OpenBSD 4.8 |
246 | | | | | NetBSD | |
247 | FreeBSD FreeBSD | | 5.1 | |
248 | 8.2 7.4 | | |\ | DragonFly 2.10.1
249 | | | | | \ OpenBSD 4.9 |
250 | `-----. Mac OS X | | | | |
251 | \ 10.7 | | | | |
252 | | | | | | OpenBSD 5.0 |
253 *--FreeBSD | | | | | | |
254 | 9.0 | | | NetBSD 5.1.2 | DragonFly 3.0.1
255 | | FreeBSD | | | | |
256 | | 8.3 | | | OpenBSD 5.1 |
257 | | Mac OS X | | | |
258 | | 10.8 | | | |
259 | | | NetBSD 6.0 | | |
260 | | | |\\ | OpenBSD 5.2 DragonFly 3.2.1
261 | FreeBSD | | |\ NetBSD 5.2 | |
262 | 9.1 | | | \ | |
263 | | | | NetBSD 6.0.1 | |
264 | | | | | OpenBSD 5.3 DragonFly 3.4.1
265 | | | | | | |
266 | | | | NetBSD 6.0.2 | |
267 | | | `-NetBSD 6.1 | |
268 | | | | |
269 | | | | |
270 | | | | |
271 FreeBSD 10 -current | NetBSD -current OpenBSD -current |
272 | | | | |
273 v v v v v
274
275 Time
276 ----------------
277
278 Time tolerance +/- 6 months, depending on which book/article you read; if it
279 was the announcement in Usenet or if it was available as tape.
280
281 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
282 and John Quarterman. The Design and Implementation of
283 the 4.4BSD Operating System.
284 [APL] Apple website [http://www.apple.com/macosx/]
285 [BSDI] Berkeley Software Design, Inc.
286 [DFB] DragonFlyBSD Project, The.
287 [DOC] README, COPYRIGHT on tape.
288 [FBD] FreeBSD Project, The.
289 [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
290 Volume 11, Info 4, April, 1987.
291 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
292 comp.bugs.4bsd.ucb-fixes, June 15, 1988.
293 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
294 Changes in the Kernel in 2.9BSD. Second Berkeley Software
295 Distribution UNIX Version 2.9, July, 1983.
296 [NBD] NetBSD Project, The.
297 [OBD] OpenBSD Project, The.
298 [QCU] Salus, Peter H. A quarter century of UNIX.
299 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
300 [TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/.
301 [USE] Usenet announcement.
302 [WRS] Wind River Systems, Inc.
303 [dmr] Dennis Ritchie, via E-Mail
304
305 Multics 1965
306 UNIX Summer 1969
307 DEC PDP-7
308 First Edition 1971-11-03 [QCU]
309 DEC PDP-11/20, Assembler
310 Second Edition 1972-06-12 [QCU]
311 10 UNIX installations
312 Third Edition 1973-02-xx [QCU]
313 Pipes, 16 installations
314 Fourth Edition 1973-11-xx [QCU]
315 rewriting in C effected,
316 above 30 installations
317 Fifth Edition 1974-06-xx [QCU]
318 above 50 installations
319 Sixth Edition 1975-05-xx [QCU]
320 port to DEC Vax
321 Seventh Edition 1979-01-xx [QCU]
322 first portable UNIX
323 Eighth Edition 1985-02-xx [QCU]
324 VAX 11/750, VAX 11/780 [dmr]
325 descended from 4.1c BSD [dmr]
326 descended from 4.1 BSD [44B]
327 scooping-out and replacement of the character-device
328 and networking part by the streams mechanism
329
330 Ninth Edition 1986-09-xx [QCU]
331 Tenth Edition 1989-10-xx [QCU]
332
333 1BSD late 1977
334 1978-03-09 [QCU]
335 PDP-11, Pascal, ex(1)
336 30 free copies of 1BSD sent out
337 35 tapes sold for 50 USD [QCU]
338 2BSD mid 1978 [QCU] 1979-05-10 [TUHS]
339 75 2BSD tapes shipped
340 2.79BSD 1980-04-xx [TUHS]
341 2.8BSD 1981-07-xx [KSJ]
342
343 2.8.1BSD 1982-01-xx [QCU]
344 set of performance improvements
345 2.9BSD 1983-07-xx [KSJ]
346 2.9.1BSD 1983-11-xx [TUHS]
347 2.9BSD-Seismo 1985-08-xx [SMS]
348 2.10BSD 1987-04-xx [KKK]
349 2.10.1BSD 1989-01-xx [SMS]
350 2.11BSD 1992-02-xx [SMS]
351 2.11BSD rev #430 1999-12-13 [SMS]
352
353 32V 1978-1[01]-xx [QCU]
354 3BSD late 1979 [QCU] March 1980 [TUHS]
355 virtual memory, page replacement,
356 demand paging
357 4.0BSD 1980-10-xx
358 4.1BSD 1981-07-08 [DOC]
359 4.1aBSD 1982-04-xx
360 alpha release, 100 sites, networking [44B]
361 4.1bBSD internal release, fast filesystem [44B]
362 4.1cBSD late 1982
363 beta release, IPC [44B]
364 4.2BSD 1983-09-xx [QCU]
365 1983-08-03 [DOC]
366 4.3BSD 1986-06-xx [QCU]
367 1986-04-05 [KB], [DOC]
368 4.3BSD Tahoe 1988-06-15 [QCU], [DOC]
369 4.3BSD NET/1 1988-11-xx [QCU]
370 1989-01-01 [DOC]
371 4.3BSD Reno 1990-06-29 [QCU], [DOC]
372 4.3BSD NET/2 1991-06-28 [QCU], [DOC]
373
374 BSD/386 ALPHA 1991-12-xx [BSDI]
375 first code released to people outside BSDI
376 386BSD 0.0 1992-02-xx [DOC]
377 BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers
378 BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version
379 386BSD 0.1 1992-07-28 [DOC]
380 4.4BSD Alpha 1992-07-07
381 BSD/386 0.9.3 1992-10-xx [BSDI]
382 first external gamma; G customers
383 BSD/386 0.9.4 1992-12-xx [BSDI]
384 would have been 1.0 except for request
385 for preliminary injunction
386 BSD/386 1.0 1993-03-xx [BSDI]
387 injunction denied; first official release
388 NetBSD 0.8 1993-04-20 [NBD]
389 4.4BSD 1993-06-01 [USE]
390 NetBSD 0.9 1993-08-23 [NBD]
391 FreeBSD 1.0 1993-11-01 [FBD]
392 FreeBSD 1.0.2 1993-11-14 [FBD]
393 supersedes 1.0 13 days after release.
394 BSD/386 1.1 1994-02-xx [BSDI]
395 4.4BSD Lite 1994-03-01 [USE]
396 FreeBSD 1.1 1994-05-07 [FBD]
397 FreeBSD 1.1.5 1994-06-30 [FBD]
398 FreeBSD 1.1.5.1 1994-07-05 [FBD]
399 supersedes 1.1.5 5 days after release.
400 NetBSD 1.0 1994-10-26 [NBD]
401 386BSD 1.0 1994-11-12 [USE]
402 FreeBSD 2.0 1994-11-23 [FBD]
403 BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based
404 FreeBSD 2.0.5 1995-06-10 [FBD]
405 BSD/OS 2.0.1 1995-06-xx [BSDI]
406 4.4BSD Lite Release 2 1995-06-xx [44B]
407 the true final distribution from the CSRG
408 FreeBSD 2.1.0 1995-11-19 [FBD]
409 NetBSD 1.1 1995-11-26 [NBD]
410 BSD/OS 2.1 1996-01-xx [BSDI]
411 FreeBSD 2.1.5 1996-07-14 [FBD]
412 NetBSD 1.2 1996-10-04 [NBD]
413 OpenBSD 2.0 1996-10-18 [OBD]
414 FreeBSD 2.1.6 1996-11-16 [FBD]
415 FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release)
416 Rhapsody 1997-xx-xx
417 FreeBSD 2.1.7 1997-02-20 [FBD]
418 BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based
419 FreeBSD 2.2.0 1997-03-16 [FBD]
420 FreeBSD 2.2.1 1997-03-25 [FBD]
421 FreeBSD 2.2.2 1997-05-16 [FBD]
422 NetBSD 1.2.1 1997-05-20 [NBD] (patch release)
423 OpenBSD 2.1 1997-06-01 [OBD]
424 FreeBSD 2.2.5 1997-10-22 [FBD]
425 OpenBSD 2.2 1997-12-01 [OBD]
426 NetBSD 1.3 1998-01-04 [NBD]
427 FreeBSD 2.2.6 1998-03-25 [FBD]
428 NetBSD 1.3.1 1998-03-09 [NBD] (patch release)
429 BSD/OS 3.1 1998-03-xx [BSDI]
430 OpenBSD 2.3 1998-05-19 [OBD]
431 NetBSD 1.3.2 1998-05-29 [NBD] (patch release)
432 FreeBSD 2.2.7 1998-07-22 [FBD]
433 BSD/OS 4.0 1998-08-xx [BSDI]
434 2-lock MP support, ELF executables
435 FreeBSD 3.0 1998-10-16 [FBD]
436 FreeBSD-3.0 is a snapshot from -current,
437 while 3.1 and 3.2 are from 3.x-stable which
438 was branched quite some time after 3.0-release
439 FreeBSD 2.2.8 1998-11-29 [FBD]
440 OpenBSD 2.4 1998-12-01 [OBD]
441 NetBSD 1.3.3 1998-12-23 [NBD] (patch release)
442 FreeBSD 3.1 1999-02-15 [FBD]
443 BSD/OS 4.0.1 1999-03-xx [BSDI]
444 NetBSD 1.4 1999-05-12 [NBD]
445 FreeBSD 3.2 1999-05-17 [FBD]
446 OpenBSD 2.5 1999-05-19 [OBD]
447 NetBSD 1.4.1 1999-08-26 [NBD] (patch release)
448 FreeBSD 3.3 1999-09-17 [FBD]
449 OpenBSD 2.6 1999-12-01 [OBD]
450 FreeBSD 3.4 1999-12-20 [FBD]
451 BSD/OS 4.1 1999-12-xx [BSDI]
452 FreeBSD 4.0 2000-03-13 [FBD]
453 NetBSD 1.4.2 2000-03-19 [NBD] (patch release)
454 OpenBSD 2.7 2000-06-15 [OBD]
455 FreeBSD 3.5 2000-06-24 [FBD]
456 FreeBSD 4.1 2000-07-27 [FBD]
457 FreeBSD 3.5.1 2000-07-28 [FBD]
458 FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release)
459 FreeBSD 4.2 2000-11-21 [FBD]
460 NetBSD 1.4.3 2000-11-25 [NBD] (patch release)
461 BSD/OS 4.2 2000-11-29 [BSDI]
462 OpenBSD 2.8 2000-12-01 [OBD]
463 NetBSD 1.5 2000-12-06 [NBD]
464 Mac OS X 10.0 2001-03-24 [APL]
465 FreeBSD 4.3 2001-04-20 [FBD]
466 OpenBSD 2.9 2001-06-01 [OBD]
467 NetBSD 1.5.1 2001-07-11 [NBD] (patch release)
468 NetBSD 1.5.2 2001-09-13 [NBD] (patch release)
469 FreeBSD 4.4 2001-09-18 [FBD]
470 Mac OS X 10.1 2001-09-29 [APL]
471 OpenBSD 3.0 2001-12-01 [OBD]
472 FreeBSD 4.5 2002-01-29 [FBD]
473 BSD/OS 4.3 2002-03-14 [WRS]
474 OpenBSD 3.1 2002-05-19 [OBD]
475 FreeBSD 4.6 2002-06-15 [FBD]
476 NetBSD 1.5.3 2002-07-22 [NBD] (patch release)
477 FreeBSD 4.6.2 2002-08-15 [FBD] (patch release)
478 Mac OS X 10.2 2002-08-23 [APL]
479 NetBSD 1.6 2002-09-14 [NBD]
480 FreeBSD 4.7 2002-10-08 [FBD]
481 OpenBSD 3.2 2002-11-01 [OBD]
482 FreeBSD 5.0 2003-01-17 [FBD]
483 FreeBSD 5.0 is a separate branch off of
484 -current, similar to 3.0.
485 FreeBSD 4.8 2003-04-03 [FBD]
486 NetBSD 1.6.1 2003-04-21 [NBD] (patch release)
487 OpenBSD 3.3 2003-05-01 [OBD]
488 BSD/OS 5.0 2003-05-?? [WRS]
489 FreeBSD 5.1 2003-06-09 [FBD]
490 Mac OS X 10.3 2003-10-24 [APL]
491 FreeBSD 4.9 2003-10-28 [FBD]
492 BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version)
493 OpenBSD 3.4 2003-11-01 [OBD]
494 FreeBSD 5.2 2004-01-12 [FBD]
495 FreeBSD 5.2.1 2004-02-22 [FBD] (patch release)
496 NetBSD 1.6.2 2004-03-01 [NBD] (patch release)
497 OpenBSD 3.5 2004-04-01 [OBD]
498 FreeBSD 4.10 2004-05-27 [FBD]
499 DragonFly 1.0 2004-07-12 [DFB]
500 OpenBSD 3.6 2004-10-29 [OBD]
501 FreeBSD 5.3 2004-11-06 [FBD]
502 NetBSD 2.0 2004-12-09 [NBD]
503 FreeBSD 4.11 2005-01-25 [FBD]
504 DragonFly 1.2.0 2005-04-08 [DFB]
505 NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release)
506 Mac OS X 10.4 2005-04-29 [APL]
507 FreeBSD 5.4 2005-05-09 [FBD]
508 OpenBSD 3.7 2005-05-19 [OBD]
509 NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release)
510 OpenBSD 3.8 2005-11-01 [OBD]
511 FreeBSD 6.0 2005-11-01 [FBD]
512 NetBSD 2.1 2005-11-02 [NBD]
513 NetBSD 3.0 2005-12-23 [NBD]
514 DragonFly 1.4.0 2006-01-08 [DFB]
515 OpenBSD 3.9 2006-05-01 [OBD]
516 FreeBSD 6.1 2006-05-08 [FBD]
517 FreeBSD 5.5 2006-05-25 [FBD]
518 NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release)
519 DragonFly 1.6.0 2006-07-24 [DFB]
520 OpenBSD 4.0 2006-11-01 [OBD]
521 NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release)
522 NetBSD 3.1 2006-11-04 [NBD]
523 FreeBSD 6.2 2007-01-15 [FBD]
524 DragonFly 1.8.0 2007-01-30 [DFB]
525 OpenBSD 4.1 2007-05-01 [OBD]
526 DragonFly 1.10.0 2007-08-06 [DFB]
527 Mac OS X 10.5 2007-10-26 [APL]
528 OpenBSD 4.2 2007-11-01 [OBD]
529 NetBSD 4.0 2007-12-19 [NBD]
530 FreeBSD 6.3 2008-01-18 [FBD]
531 DragonFly 1.12.0 2008-02-26 [DFB]
532 FreeBSD 7.0 2008-02-27 [FBD]
533 OpenBSD 4.3 2008-05-01 [OBD]
534 DragonFly 2.0.0 2008-07-21 [DFB]
535 OpenBSD 4.4 2008-11-01 [OBD]
536 FreeBSD 6.4 2008-11-28 [FBD]
537 FreeBSD 7.1 2009-01-04 [FBD]
538 DragonFly 2.2.0 2009-02-17 [DFB]
539 NetBSD 5.0 2009-04-29 [NBD]
540 OpenBSD 4.5 2009-05-01 [OBD]
541 FreeBSD 7.2 2009-05-04 [FBD]
542 Mac OS X 10.6 2009-06-08 [APL]
543 NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release)
544 DragonFly 2.4.0 2009-09-16 [DFB]
545 OpenBSD 4.6 2009-10-18 [OBD]
546 FreeBSD 8.0 2009-11-26 [FBD]
547 NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release)
548 FreeBSD 7.3 2010-03-23 [FBD]
549 DragonFly 2.6.0 2010-03-28 [DFB]
550 OpenBSD 4.7 2010-05-19 [OBD]
551 FreeBSD 8.1 2010-07-24 [FBD]
552 DragonFly 2.8.2 2010-10-30 [DFB]
553 OpenBSD 4.8 2010-11-01 [OBD]
554 NetBSD 5.1 2010-11-19 [NBD]
555 FreeBSD 7.4 2011-02-24 [FBD]
556 FreeBSD 8.2 2011-02-24 [FBD]
557 DragonFly 2.10.1 2011-04-26 [DFB]
558 OpenBSD 4.9 2011-05-01 [OBD]
559 Mac OS X 10.7 2011-07-20 [APL]
560 OpenBSD 5.0 2011-11-01 [OBD]
561 FreeBSD 9.0 2012-01-12 [FBD]
562 NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release)
563 DragonFly 3.0.1 2012-02-21 [DFB]
564 FreeBSD 8.3 2012-04-18 [FBD]
565 OpenBSD 5.1 2012-05-01 [OBD]
566 Mac OS X 10.8 2012-07-25 [APL]
567 NetBSD 6.0 2012-10-17 [NBD]
568 OpenBSD 5.2 2012-11-01 [OBD]
569 DragonFly 3.2.1 2012-11-02 [DFB]
570 NetBSD 5.2 2012-12-03 [NBD]
571 NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release)
572 FreeBSD 9.1 2012-12-30 [FBD]
573 DragonFly 3.4.1 2013-04-29 [DFB]
574 OpenBSD 5.3 2013-05-01 [OBD]
575 NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release)
576 NetBSD 6.1 2013-05-18 [NBD]
577
578 Bibliography
579 ------------------------
580
581 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
582 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
583 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
584
585 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
586 Company, Inc., 1994. ISBN 0-201-54777-5
587
588 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
589 Quarterman. The Design and Implementation of the 4.4BSD Operating
590 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
591
592 McKusick, Marshall Kirk, George Neville-Neil. The Design and
593 Implementation of the FreeBSD Operating System.
594 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
595
596 Doug McIlroy. Research Unix Reader.
597
598 Michael G. Brown. The Role of BSD in the Development of Unix.
599 Presented to the Tasmanian Unix Special Interest Group of the
600 Australian Computer Society, Hobart, August 1993.
601
602 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
603 URL: http://www.byte.com/art/9410/sec8/art3.htm
604
605 Andreas Klemm, Lars Kller. If you're going to San Francisco ...
606 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
607
608 BSD Release Announcements collection.
609 URL: http://www.FreeBSD.org/releases/
610
611 BSD Hypertext Man Pages
612 URL: http://www.FreeBSD.org/cgi/man.cgi
613
614 UNIX history graphing project
615 URL: http://minnie.tuhs.org/Unix_History/index.html
616
617 UNIX history
618 URL: http://www.levenez.com/unix/
619
620 James Howard: The BSD Family Tree
621 URL: http://ezine.daemonnews.org/200104/bsd_family.html
622 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
623
624
625 Acknowledgments
626 ---------------
627
628 Josh Gilliam for suggestions, bug fixes, and finding very old
629 original BSD announcements from Usenet or tapes.
630
631 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
632
633 --
634 Copyright (c) 1997-2012 Wolfram Schneider <wosch (a] FreeBSD.ORG>
635 URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
636
637 $FreeBSD$
638