bsd-family-tree revision 1.57 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 | FreeBSD 2.2.8 | | | | | |
114 | | | | | | | |
115 | v | | | | OpenBSD 2.4 |
116 | FreeBSD 2.2.9 | | | | | |
117 | | | | | | |
118 FreeBSD 3.0 <--------* | | v | |
119 | | | NetBSD 1.3.3 | |
120 *---FreeBSD 3.1 | | | |
121 | | | | | BSD/OS 4.0.1
122 | FreeBSD 3.2----* | NetBSD 1.4 OpenBSD 2.5 |
123 | | | | | | | | |
124 | | | | | | | | |
125 | | | | | | | | |
126 | FreeBSD 3.3 | | | | NetBSD 1.4.1 | |
127 | | | | | | | OpenBSD 2.6 |
128 | FreeBSD 3.4 | | | | | | |
129 | | | | | | | | BSD/OS 4.1
130 FreeBSD 4.0 | | | | | NetBSD 1.4.2 | |
131 | | | | | | | | |
132 | | | | | | | | |
133 | FreeBSD 3.5 | | | | | OpenBSD 2.7 |
134 | | | | | | | | |
135 | FreeBSD 3.5.1 | | | | | | |
136 | | | | | | | |
137 *---FreeBSD 4.1 | | | | | | |
138 | | | | (?) | | | |
139 | FreeBSD 4.1.1 | | / | | | |
140 | | | | / | | | |
141 | FreeBSD 4.2 Darwin/ | NetBSD 1.4.3 | |
142 | | Mac OS X | OpenBSD 2.8 BSD/OS 4.2
143 | | | | | |
144 | | | | | |
145 | | 10.0 NetBSD 1.5 | |
146 | FreeBSD 4.3 | | | | |
147 | | | | | OpenBSD 2.9 |
148 | | | | NetBSD 1.5.1 | |
149 | | | | | | |
150 | FreeBSD 4.4-. | | NetBSD 1.5.2 | |
151 | | | Mac OS X | | | |
152 | | | 10.1 | | OpenBSD 3.0 |
153 | FreeBSD 4.5 | | | | | |
154 | | \ | | | | BSD/OS 4.3
155 | FreeBSD 4.6 \ | | | OpenBSD 3.1 |
156 | | \ | | NetBSD 1.5.3 | |
157 | FreeBSD 4.6.2 Mac OS X | | |
158 | | 10.2 | | |
159 | FreeBSD 4.7 | | | |
160 | | | NetBSD 1.6 OpenBSD 3.2 |
161 | FreeBSD 4.8 | | | | |
162 | | | | NetBSD 1.6.1 | |
163 | |--------. | | | OpenBSD 3.3 BSD/OS 5.0
164 | | \ | | | | |
165 | FreeBSD 4.9 | | | | OpenBSD 3.4 BSD/OS 5.1 ISE
166 | | | | | | |
167 | | | | | NetBSD 1.6.2 |
168 | | | | | | |
169 | | | | | | OpenBSD 3.5
170 | | | | | v |
171 | FreeBSD 4.10 | | | |
172 | | | | | |
173 | FreeBSD 4.11 | | | |
174 | | | | |
175 | `-|------|-----------------|---------------------.
176 | | | | \
177 FreeBSD 5.0 | | | |
178 | | | | |
179 FreeBSD 5.1 | | | DragonFly 1.0
180 | \ | | | |
181 | ----- Mac OS X | | |
182 | 10.3 | | |
183 FreeBSD 5.2 | | | |
184 | | | | | |
185 | FreeBSD 5.2.1 | | | |
186 | | | | |
187 *-------FreeBSD 5.3 | | | |
188 | | | | OpenBSD 3.6 |
189 | | | NetBSD 2.0 | |
190 | | | | | | | DragonFly 1.2.0
191 | | Mac OS X | | NetBSD 2.0.2 | |
192 | | 10.4 | | | | |
193 | FreeBSD 5.4 | | | | | |
194 | | | | | | OpenBSD 3.7 |
195 | | | | | NetBSD 2.0.3 | |
196 | | | | | | | |
197 *--FreeBSD | | | | v OpenBSD 3.8 |
198 | 6.0 | | | | | |
199 | | | | | \ | |
200 | | | | | NetBSD 2.1 | |
201 | | | | | | |
202 | | | | NetBSD 3.0 | |
203 | | | | | | | | DragonFly 1.4.0
204 | | | | | | | OpenBSD 3.9 |
205 | FreeBSD | | | | | | |
206 | 6.1 | | | | | | |
207 | | FreeBSD 5.5 | | | | | |
208 | | | | | NetBSD 3.0.1 | DragonFly 1.6.0
209 | | | | | | | |
210 | | | | | | OpenBSD 4.0 |
211 | | | | | NetBSD 3.0.2 | |
212 | | | | NetBSD 3.1 | |
213 | FreeBSD 6.2 | | | |
214 | | | | | DragonFly 1.8.0
215 | | | | OpenBSD 4.1 |
216 | | | | | DragonFly 1.10.0
217 | | Mac OS X | | |
218 | | 10.5 | | |
219 | | | | OpenBSD 4.2 |
220 | | | NetBSD 4.0 | |
221 | FreeBSD 6.3 | | | | |
222 | \ | | | | |
223 *--FreeBSD | | | | | DragonFly 1.12.0
224 | 7.0 | | | | | |
225 | | | | | | OpenBSD 4.3 |
226 | | | | | NetBSD | DragonFly 2.0.0
227 | | FreeBSD | | 4.0.1 OpenBSD 4.4 |
228 | | 6.4 | | | |
229 | | | | | |
230 | FreeBSD 7.1 | | | |
231 | | | | | DragonFly 2.2.0
232 | FreeBSD 7.2 | NetBSD 5.0 OpenBSD 4.5 |
233 | \ | | | \ | |
234 | | Mac OS X | | \ | |
235 | | 10.6 | | \ | |
236 | | | | | NetBSD | DragonFly 2.4.0
237 | | | | | 5.0.1 OpenBSD 4.6 |
238 | | | | | | | |
239 *--FreeBSD | | | | | | |
240 | 8.0 | | | | | | |
241 | | FreeBSD | | | NetBSD | |
242 | | 7.3 | | | 5.0.2 | DragonFly 2.6.0
243 | | | | | | OpenBSD 4.7 |
244 | FreeBSD | | | | | |
245 | 8.1 | | | | | |
246 | | | | | | | DragonFly 2.8.2
247 | | | | | | OpenBSD 4.8 |
248 | | | | | *--NetBSD | |
249 | FreeBSD FreeBSD | | | 5.1 | |
250 | 8.2 7.4 | | | | | DragonFly 2.10.1
251 | | | | | | OpenBSD 4.9 |
252 | `-----. Mac OS X | | | | |
253 | \ 10.7 | | | | |
254 | | | | | | OpenBSD 5.0 |
255 *--FreeBSD | | | | | | |
256 | 9.0 | | | | NetBSD | DragonFly 3.0.1
257 | | FreeBSD | | | 5.1.2 | |
258 | | 8.3 | | | | | |
259 | | | | | | NetBSD | |
260 | | | | | | 5.1.3 | |
261 | | | | | | | | |
262 | | | | | | NetBSD | |
263 | | | | | | 5.1.4 | |
264 | | | | | | OpenBSD 5.1 |
265 | | | Mac OS X | `----. | |
266 | | | 10.8 | \ | |
267 | | | | NetBSD 6.0 | | |
268 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1
269 | FreeBSD | | | | | NetBSD | |
270 | 9.1 | | | | | 5.2 | |
271 | | | | | | | | | |
272 | | | | | | | NetBSD | |
273 | | | | | | | 5.2.1 | |
274 | | | | | | | | | |
275 | | | | | | | NetBSD | |
276 | | | | | | | 5.2.2 | |
277 | | | | | | | | |
278 | | | | | | \ | |
279 | | | | | | NetBSD | |
280 | | | | | | 6.0.1 | |
281 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1
282 | | | | | | NetBSD | |
283 | | | | | | 6.0.2 | |
284 | | | | | | | | |
285 | | | | | | NetBSD | |
286 | | | | | | 6.0.3 | |
287 | | | | | | | | |
288 | | | | | | NetBSD | |
289 | | | | | | 6.0.4 | |
290 | | | | | | | | |
291 | | | | | | NetBSD | |
292 | | | | | | 6.0.5 | |
293 | | | | | | | |
294 | | | | | |`-NetBSD 6.1 | |
295 | | FreeBSD | | | | |
296 | | 8.4 | | NetBSD 6.1.1 | |
297 | | | | | | |
298 | FreeBSD | | NetBSD 6.1.2 | |
299 | 9.2 Mac OS X | | | |
300 | | 10.9 | | OpenBSD 5.4 |
301 | `-----. | | | | DragonFly 3.6.0
302 | \ | | | | |
303 *--FreeBSD | | | NetBSD 6.1.3 | |
304 | 10.0 | | | | | |
305 | | | | | | | DragonFly 3.6.1
306 | | | | | | | |
307 | | | | | | | |
308 | | | | | | | DragonFly 3.6.2
309 | | | | | NetBSD 6.1.4 | |
310 | | | | | | | |
311 | | | | | | OpenBSD 5.5 |
312 | | | | | | | |
313 | | | | | | | DragonFly 3.8.0
314 | | | | | | | |
315 | | | | | | | |
316 | | | | | | | DragonFly 3.8.1
317 | | | | | | | |
318 | | | | | | | |
319 | | | | | | | DragonFly 3.6.3
320 | | | | | | | |
321 | | FreeBSD | | | | |
322 | | 9.3 | | | | |
323 | | | | NetBSD 6.1.5 | DragonFly 3.8.2
324 | | Mac OS X | | |
325 | | 10.10 | | |
326 | | | | OpenBSD 5.6 |
327 | FreeBSD | | | |
328 | 10.1 | | | DragonFly 4.0.1
329 | | | | | |
330 | | | | | DragonFly 4.0.2
331 | | | | | |
332 | | | | | DragonFly 4.0.3
333 | | | | | |
334 | | | | | DragonFly 4.0.4
335 | | | | | |
336 | | | | | DragonFly 4.0.5
337 | | | | | |
338 | | | | OpenBSD 5.7 |
339 | | | | | DragonFly 4.2.0
340 | FreeBSD | | | |
341 | 10.2 | | | |
342 | | OS X NetBSD 7.0 | |
343 | | 10.11 | OpenBSD 5.8 |
344 | | | | | DragonFly 4.4.1
345 | FreeBSD | | OpenBSD 5.9 |
346 | 10.3 | | | |
347 | | | | DragonFly 4.6.0
348 *--FreeBSD | | OpenBSD 6.0 |
349 | 11.0 | | | |
350 | | | | |
351 | | | | |
352 FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current
353 | | | | |
354 v v v v v
355
356 Time
357 ----------------
358
359 Time tolerance +/- 6 months, depending on which book/article you read; if it
360 was the announcement in Usenet or if it was available as tape.
361
362 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
363 and John Quarterman. The Design and Implementation of
364 the 4.4BSD Operating System.
365 [APL] Apple website [http://www.apple.com/macosx/]
366 [BSDI] Berkeley Software Design, Inc.
367 [DFB] DragonFlyBSD Project, The.
368 [DOC] README, COPYRIGHT on tape.
369 [FBD] FreeBSD Project, The.
370 [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
371 Volume 11, Info 4, April, 1987.
372 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
373 comp.bugs.4bsd.ucb-fixes, June 15, 1988.
374 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
375 Changes in the Kernel in 2.9BSD. Second Berkeley Software
376 Distribution UNIX Version 2.9, July, 1983.
377 [NBD] NetBSD Project, The.
378 [OBD] OpenBSD Project, The.
379 [QCU] Salus, Peter H. A quarter century of UNIX.
380 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
381 [TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/.
382 [USE] Usenet announcement.
383 [WRS] Wind River Systems, Inc.
384 [dmr] Dennis Ritchie, via E-Mail
385
386 Multics 1965
387 UNIX Summer 1969
388 DEC PDP-7
389 First Edition 1971-11-03 [QCU]
390 DEC PDP-11/20, Assembler
391 Second Edition 1972-06-12 [QCU]
392 10 UNIX installations
393 Third Edition 1973-02-xx [QCU]
394 Pipes, 16 installations
395 Fourth Edition 1973-11-xx [QCU]
396 rewriting in C effected,
397 above 30 installations
398 Fifth Edition 1974-06-xx [QCU]
399 above 50 installations
400 Sixth Edition 1975-05-xx [QCU]
401 port to DEC Vax
402 Seventh Edition 1979-01-xx [QCU]
403 first portable UNIX
404 Eighth Edition 1985-02-xx [QCU]
405 VAX 11/750, VAX 11/780 [dmr]
406 descended from 4.1c BSD [dmr]
407 descended from 4.1 BSD [44B]
408 scooping-out and replacement of the character-device
409 and networking part by the streams mechanism
410
411 Ninth Edition 1986-09-xx [QCU]
412 Tenth Edition 1989-10-xx [QCU]
413
414 1BSD late 1977
415 1978-03-09 [QCU]
416 PDP-11, Pascal, ex(1)
417 30 free copies of 1BSD sent out
418 35 tapes sold for 50 USD [QCU]
419 2BSD mid 1978 [QCU] 1979-05-10 [TUHS]
420 75 2BSD tapes shipped
421 2.79BSD 1980-04-xx [TUHS]
422 2.8BSD 1981-07-xx [KSJ]
423
424 2.8.1BSD 1982-01-xx [QCU]
425 set of performance improvements
426 2.9BSD 1983-07-xx [KSJ]
427 2.9.1BSD 1983-11-xx [TUHS]
428 2.9BSD-Seismo 1985-08-xx [SMS]
429 2.10BSD 1987-04-xx [KKK]
430 2.10.1BSD 1989-01-xx [SMS]
431 2.11BSD 1992-02-xx [SMS]
432 2.11BSD rev #430 1999-12-13 [SMS]
433
434 32V 1978-1[01]-xx [QCU]
435 3BSD late 1979 [QCU] March 1980 [TUHS]
436 virtual memory, page replacement,
437 demand paging
438 4.0BSD 1980-10-xx
439 4.1BSD 1981-07-08 [DOC]
440 4.1aBSD 1982-04-xx
441 alpha release, 100 sites, networking [44B]
442 4.1bBSD internal release, fast filesystem [44B]
443 4.1cBSD late 1982
444 beta release, IPC [44B]
445 4.2BSD 1983-09-xx [QCU]
446 1983-08-03 [DOC]
447 4.3BSD 1986-06-xx [QCU]
448 1986-04-05 [KB], [DOC]
449 4.3BSD Tahoe 1988-06-15 [QCU], [DOC]
450 4.3BSD NET/1 1988-11-xx [QCU]
451 1989-01-01 [DOC]
452 4.3BSD Reno 1990-06-29 [QCU], [DOC]
453 4.3BSD NET/2 1991-06-28 [QCU], [DOC]
454
455 BSD/386 ALPHA 1991-12-xx [BSDI]
456 first code released to people outside BSDI
457 386BSD 0.0 1992-02-xx [DOC]
458 BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers
459 BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version
460 386BSD 0.1 1992-07-28 [DOC]
461 4.4BSD Alpha 1992-07-07
462 BSD/386 0.9.3 1992-10-xx [BSDI]
463 first external gamma; G customers
464 BSD/386 0.9.4 1992-12-xx [BSDI]
465 would have been 1.0 except for request
466 for preliminary injunction
467 BSD/386 1.0 1993-03-xx [BSDI]
468 injunction denied; first official release
469 NetBSD 0.8 1993-04-20 [NBD]
470 4.4BSD 1993-06-01 [USE]
471 NetBSD 0.9 1993-08-23 [NBD]
472 FreeBSD 1.0 1993-11-01 [FBD]
473 FreeBSD 1.0.2 1993-11-14 [FBD]
474 supersedes 1.0 13 days after release.
475 BSD/386 1.1 1994-02-xx [BSDI]
476 4.4BSD Lite 1994-03-01 [USE]
477 FreeBSD 1.1 1994-05-07 [FBD]
478 FreeBSD 1.1.5 1994-06-30 [FBD]
479 FreeBSD 1.1.5.1 1994-07-05 [FBD]
480 supersedes 1.1.5 5 days after release.
481 NetBSD 1.0 1994-10-26 [NBD]
482 386BSD 1.0 1994-11-12 [USE]
483 FreeBSD 2.0 1994-11-23 [FBD]
484 BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based
485 FreeBSD 2.0.5 1995-06-10 [FBD]
486 BSD/OS 2.0.1 1995-06-xx [BSDI]
487 4.4BSD Lite Release 2 1995-06-xx [44B]
488 the true final distribution from the CSRG
489 FreeBSD 2.1.0 1995-11-19 [FBD]
490 NetBSD 1.1 1995-11-26 [NBD]
491 BSD/OS 2.1 1996-01-xx [BSDI]
492 FreeBSD 2.1.5 1996-07-14 [FBD]
493 NetBSD 1.2 1996-10-04 [NBD]
494 OpenBSD 2.0 1996-10-18 [OBD]
495 FreeBSD 2.1.6 1996-11-16 [FBD]
496 FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release)
497 Rhapsody 1997-xx-xx
498 FreeBSD 2.1.7 1997-02-20 [FBD]
499 BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based
500 FreeBSD 2.2.0 1997-03-16 [FBD]
501 FreeBSD 2.2.1 1997-03-25 [FBD]
502 FreeBSD 2.2.2 1997-05-16 [FBD]
503 NetBSD 1.2.1 1997-05-20 [NBD] (patch release)
504 OpenBSD 2.1 1997-06-01 [OBD]
505 FreeBSD 2.2.5 1997-10-22 [FBD]
506 OpenBSD 2.2 1997-12-01 [OBD]
507 NetBSD 1.3 1998-01-04 [NBD]
508 FreeBSD 2.2.6 1998-03-25 [FBD]
509 NetBSD 1.3.1 1998-03-09 [NBD] (patch release)
510 BSD/OS 3.1 1998-03-xx [BSDI]
511 OpenBSD 2.3 1998-05-19 [OBD]
512 NetBSD 1.3.2 1998-05-29 [NBD] (patch release)
513 FreeBSD 2.2.7 1998-07-22 [FBD]
514 BSD/OS 4.0 1998-08-xx [BSDI]
515 2-lock MP support, ELF executables
516 FreeBSD 3.0 1998-10-16 [FBD]
517 FreeBSD-3.0 is a snapshot from -current,
518 while 3.1 and 3.2 are from 3.x-stable which
519 was branched quite some time after 3.0-release
520 FreeBSD 2.2.8 1998-11-29 [FBD]
521 OpenBSD 2.4 1998-12-01 [OBD]
522 NetBSD 1.3.3 1998-12-23 [NBD] (patch release)
523 FreeBSD 3.1 1999-02-15 [FBD]
524 BSD/OS 4.0.1 1999-03-xx [BSDI]
525 NetBSD 1.4 1999-05-12 [NBD]
526 FreeBSD 3.2 1999-05-17 [FBD]
527 OpenBSD 2.5 1999-05-19 [OBD]
528 NetBSD 1.4.1 1999-08-26 [NBD] (patch release)
529 FreeBSD 3.3 1999-09-17 [FBD]
530 OpenBSD 2.6 1999-12-01 [OBD]
531 FreeBSD 3.4 1999-12-20 [FBD]
532 BSD/OS 4.1 1999-12-xx [BSDI]
533 FreeBSD 4.0 2000-03-13 [FBD]
534 NetBSD 1.4.2 2000-03-19 [NBD] (patch release)
535 OpenBSD 2.7 2000-06-15 [OBD]
536 FreeBSD 3.5 2000-06-24 [FBD]
537 FreeBSD 4.1 2000-07-27 [FBD]
538 FreeBSD 3.5.1 2000-07-28 [FBD]
539 FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release)
540 FreeBSD 4.2 2000-11-21 [FBD]
541 NetBSD 1.4.3 2000-11-25 [NBD] (patch release)
542 BSD/OS 4.2 2000-11-29 [BSDI]
543 OpenBSD 2.8 2000-12-01 [OBD]
544 NetBSD 1.5 2000-12-06 [NBD]
545 Mac OS X 10.0 2001-03-24 [APL]
546 FreeBSD 4.3 2001-04-20 [FBD]
547 OpenBSD 2.9 2001-06-01 [OBD]
548 NetBSD 1.5.1 2001-07-11 [NBD] (patch release)
549 NetBSD 1.5.2 2001-09-13 [NBD] (patch release)
550 FreeBSD 4.4 2001-09-18 [FBD]
551 Mac OS X 10.1 2001-09-29 [APL]
552 OpenBSD 3.0 2001-12-01 [OBD]
553 FreeBSD 4.5 2002-01-29 [FBD]
554 BSD/OS 4.3 2002-03-14 [WRS]
555 OpenBSD 3.1 2002-05-19 [OBD]
556 FreeBSD 4.6 2002-06-15 [FBD]
557 NetBSD 1.5.3 2002-07-22 [NBD] (patch release)
558 FreeBSD 4.6.2 2002-08-15 [FBD] (patch release)
559 Mac OS X 10.2 2002-08-23 [APL]
560 NetBSD 1.6 2002-09-14 [NBD]
561 FreeBSD 4.7 2002-10-08 [FBD]
562 OpenBSD 3.2 2002-11-01 [OBD]
563 FreeBSD 5.0 2003-01-17 [FBD]
564 FreeBSD 5.0 is a separate branch off of
565 -current, similar to 3.0.
566 FreeBSD 4.8 2003-04-03 [FBD]
567 NetBSD 1.6.1 2003-04-21 [NBD] (patch release)
568 OpenBSD 3.3 2003-05-01 [OBD]
569 BSD/OS 5.0 2003-05-?? [WRS]
570 FreeBSD 5.1 2003-06-09 [FBD]
571 Mac OS X 10.3 2003-10-24 [APL]
572 FreeBSD 4.9 2003-10-28 [FBD]
573 BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version)
574 OpenBSD 3.4 2003-11-01 [OBD]
575 FreeBSD 5.2 2004-01-12 [FBD]
576 FreeBSD 5.2.1 2004-02-22 [FBD] (patch release)
577 NetBSD 1.6.2 2004-03-01 [NBD] (patch release)
578 OpenBSD 3.5 2004-04-01 [OBD]
579 FreeBSD 4.10 2004-05-27 [FBD]
580 DragonFly 1.0 2004-07-12 [DFB]
581 OpenBSD 3.6 2004-10-29 [OBD]
582 FreeBSD 5.3 2004-11-06 [FBD]
583 NetBSD 2.0 2004-12-09 [NBD]
584 FreeBSD 4.11 2005-01-25 [FBD]
585 DragonFly 1.2.0 2005-04-08 [DFB]
586 NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release)
587 Mac OS X 10.4 2005-04-29 [APL]
588 FreeBSD 5.4 2005-05-09 [FBD]
589 OpenBSD 3.7 2005-05-19 [OBD]
590 NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release)
591 OpenBSD 3.8 2005-11-01 [OBD]
592 FreeBSD 6.0 2005-11-01 [FBD]
593 NetBSD 2.1 2005-11-02 [NBD]
594 NetBSD 3.0 2005-12-23 [NBD]
595 DragonFly 1.4.0 2006-01-08 [DFB]
596 FreeBSD 2.2.9 2006-04-01 [FBD]
597 OpenBSD 3.9 2006-05-01 [OBD]
598 FreeBSD 6.1 2006-05-08 [FBD]
599 FreeBSD 5.5 2006-05-25 [FBD]
600 NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release)
601 DragonFly 1.6.0 2006-07-24 [DFB]
602 OpenBSD 4.0 2006-11-01 [OBD]
603 NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release)
604 NetBSD 3.1 2006-11-04 [NBD]
605 FreeBSD 6.2 2007-01-15 [FBD]
606 DragonFly 1.8.0 2007-01-30 [DFB]
607 OpenBSD 4.1 2007-05-01 [OBD]
608 DragonFly 1.10.0 2007-08-06 [DFB]
609 Mac OS X 10.5 2007-10-26 [APL]
610 OpenBSD 4.2 2007-11-01 [OBD]
611 NetBSD 4.0 2007-12-19 [NBD]
612 FreeBSD 6.3 2008-01-18 [FBD]
613 DragonFly 1.12.0 2008-02-26 [DFB]
614 FreeBSD 7.0 2008-02-27 [FBD]
615 OpenBSD 4.3 2008-05-01 [OBD]
616 DragonFly 2.0.0 2008-07-21 [DFB]
617 OpenBSD 4.4 2008-11-01 [OBD]
618 FreeBSD 6.4 2008-11-28 [FBD]
619 FreeBSD 7.1 2009-01-04 [FBD]
620 DragonFly 2.2.0 2009-02-17 [DFB]
621 NetBSD 5.0 2009-04-29 [NBD]
622 OpenBSD 4.5 2009-05-01 [OBD]
623 FreeBSD 7.2 2009-05-04 [FBD]
624 Mac OS X 10.6 2009-06-08 [APL]
625 NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release)
626 DragonFly 2.4.0 2009-09-16 [DFB]
627 OpenBSD 4.6 2009-10-18 [OBD]
628 FreeBSD 8.0 2009-11-26 [FBD]
629 NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release)
630 FreeBSD 7.3 2010-03-23 [FBD]
631 DragonFly 2.6.0 2010-03-28 [DFB]
632 OpenBSD 4.7 2010-05-19 [OBD]
633 FreeBSD 8.1 2010-07-24 [FBD]
634 DragonFly 2.8.2 2010-10-30 [DFB]
635 OpenBSD 4.8 2010-11-01 [OBD]
636 NetBSD 5.1 2010-11-19 [NBD]
637 FreeBSD 7.4 2011-02-24 [FBD]
638 FreeBSD 8.2 2011-02-24 [FBD]
639 DragonFly 2.10.1 2011-04-26 [DFB]
640 OpenBSD 4.9 2011-05-01 [OBD]
641 Mac OS X 10.7 2011-07-20 [APL]
642 OpenBSD 5.0 2011-11-01 [OBD]
643 FreeBSD 9.0 2012-01-12 [FBD]
644 NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release)
645 DragonFly 3.0.1 2012-02-21 [DFB]
646 FreeBSD 8.3 2012-04-18 [FBD]
647 OpenBSD 5.1 2012-05-01 [OBD]
648 Mac OS X 10.8 2012-07-25 [APL]
649 NetBSD 6.0 2012-10-17 [NBD]
650 OpenBSD 5.2 2012-11-01 [OBD]
651 DragonFly 3.2.1 2012-11-02 [DFB]
652 NetBSD 5.2 2012-12-03 [NBD]
653 NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release)
654 FreeBSD 9.1 2012-12-30 [FBD]
655 DragonFly 3.4.1 2013-04-29 [DFB]
656 OpenBSD 5.3 2013-05-01 [OBD]
657 NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release)
658 NetBSD 6.1 2013-05-18 [NBD]
659 FreeBSD 8.4 2013-06-07 [FBD]
660 NetBSD 6.1.1 2013-08-22 [NBD]
661 NetBSD 5.1.3 2013-09-29 [NBD]
662 NetBSD 5.2.1 2013-09-29 [NBD]
663 FreeBSD 9.2 2013-09-30 [FBD]
664 NetBSD 6.0.3 2013-09-30 [NBD]
665 NetBSD 6.1.2 2013-09-30 [NBD]
666 Mac OS X 10.9 2013-10-22 [APL]
667 OpenBSD 5.4 2013-11-01 [OBD]
668 DragonFly 3.6.0 2013-11-25 [DFB]
669 FreeBSD 10.0 2014-01-20 [FBD]
670 NetBSD 5.1.4 2014-01-25 [NBD]
671 NetBSD 5.2.2 2014-01-25 [NBD]
672 NetBSD 6.0.4 2014-01-25 [NBD]
673 NetBSD 6.1.3 2014-01-25 [NBD]
674 DragonFly 3.6.1 2014-02-22 [DFB]
675 DragonFly 3.6.2 2014-04-10 [DFB]
676 NetBSD 6.0.5 2014-04-12 [NDB]
677 NetBSD 6.1.4 2014-04-12 [NDB]
678 OpenBSD 5.5 2014-05-01 [OBD]
679 DragonFly 3.8.0 2014-06-04 [DFB]
680 DragonFly 3.8.1 2014-06-16 [DFB]
681 DragonFly 3.6.3 2014-06-17 [DFB]
682 FreeBSD 9.3 2014-07-05 [FBD]
683 DragonFly 3.8.2 2014-08-08 [DFB]
684 NetBSD 6.1.5 2014-09-22 [NBD]
685 Mac OS X 10.10 2014-10-16 [APL]
686 OpenBSD 5.6 2014-11-01 [OBD]
687 FreeBSD 10.1 2014-11-14 [FBD]
688 DragonFly 4.0.1 2014-11-25 [DFB]
689 DragonFly 4.0.2 2015-01-07 [DFB]
690 DragonFly 4.0.3 2015-01-21 [DFB]
691 DragonFly 4.0.4 2015-03-09 [DFB]
692 DragonFly 4.0.5 2015-03-23 [DFB]
693 OpenBSD 5.7 2015-05-01 [OBD]
694 DragonFly 4.2.0 2015-06-29 [DFB]
695 FreeBSD 10.2 2015-08-13 [FBD]
696 NetBSD 7.0 2015-09-25 [NBD]
697 OS X 10.11 2015-09-30 [APL]
698 OpenBSD 5.8 2015-10-18 [OBD]
699 DragonFly 4.4.1 2015-12-07 [DFB]
700 OpenBSD 5.9 2016-03-29 [OBD]
701 FreeBSD 10.3 2016-04-04 [FBD]
702 DragonFly 4.6.0 2016-08-02 [DFB]
703 OpenBSD 6.0 2016-09-01 [OBD]
704
705 Bibliography
706 ------------------------
707
708 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
709 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
710 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
711
712 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
713 Company, Inc., 1994. ISBN 0-201-54777-5
714
715 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
716 Quarterman. The Design and Implementation of the 4.4BSD Operating
717 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
718
719 McKusick, Marshall Kirk, George Neville-Neil. The Design and
720 Implementation of the FreeBSD Operating System.
721 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
722
723 McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The
724 Design and Implementation of the FreeBSD Operating System, 2nd Edition.
725 Pearson Education, Inc., 2014. ISBN 0-321-96897-2
726
727 Doug McIlroy. Research Unix Reader.
728
729 Michael G. Brown. The Role of BSD in the Development of Unix.
730 Presented to the Tasmanian Unix Special Interest Group of the
731 Australian Computer Society, Hobart, August 1993.
732
733 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
734 URL: http://www.byte.com/art/9410/sec8/art3.htm
735
736 Andreas Klemm, Lars Kller. If you're going to San Francisco ...
737 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
738
739 BSD Release Announcements collection.
740 URL: http://www.FreeBSD.org/releases/
741
742 BSD Hypertext Man Pages
743 URL: http://www.FreeBSD.org/cgi/man.cgi
744
745 UNIX history graphing project
746 URL: http://minnie.tuhs.org/Unix_History/index.html
747
748 UNIX history
749 URL: http://www.levenez.com/unix/
750
751 James Howard: The BSD Family Tree
752 URL: http://ezine.daemonnews.org/200104/bsd_family.html
753 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
754
755
756 Acknowledgments
757 ---------------
758
759 Josh Gilliam for suggestions, bug fixes, and finding very old
760 original BSD announcements from Usenet or tapes.
761
762 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
763
764 --
765 Copyright (c) 1997-2012 Wolfram Schneider <wosch (a] FreeBSD.ORG>
766 URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree
767
768 $FreeBSD: head/share/misc/bsd-family-tree 305215 2016-09-01 17:05:54Z maxim $
769 $NetBSD: bsd-family-tree,v 1.57 2016/09/29 14:32:51 sevan Exp $
770