bsd-family-tree revision 1.50 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 | DragonFly 2.0.0
225 | | FreeBSD | | 4.0.1 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 | DragonFly 3.0.1
255 | | FreeBSD | | | 5.1.2 | |
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 | |
262 | 9.1 | | | | 5.2 | |
263 | | | | \ | |
264 | | | | NetBSD | |
265 | | | | 6.0.1 | |
266 | | | | | OpenBSD 5.3 DragonFly 3.4.1
267 | | | | NetBSD | |
268 | | | | 6.0.2 | |
269 | | | | | |
270 | | | `-NetBSD 6.1 | |
271 | | | | |
272 | | | | |
273 | | | | |
274 FreeBSD 10 -current | NetBSD -current OpenBSD -current |
275 | | | | |
276 v v v v v
277
278 Time
279 ----------------
280
281 Time tolerance +/- 6 months, depending on which book/article you read; if it
282 was the announcement in Usenet or if it was available as tape.
283
284 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
285 and John Quarterman. The Design and Implementation of
286 the 4.4BSD Operating System.
287 [APL] Apple website [http://www.apple.com/macosx/]
288 [BSDI] Berkeley Software Design, Inc.
289 [DFB] DragonFlyBSD Project, The.
290 [DOC] README, COPYRIGHT on tape.
291 [FBD] FreeBSD Project, The.
292 [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
293 Volume 11, Info 4, April, 1987.
294 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
295 comp.bugs.4bsd.ucb-fixes, June 15, 1988.
296 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
297 Changes in the Kernel in 2.9BSD. Second Berkeley Software
298 Distribution UNIX Version 2.9, July, 1983.
299 [NBD] NetBSD Project, The.
300 [OBD] OpenBSD Project, The.
301 [QCU] Salus, Peter H. A quarter century of UNIX.
302 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
303 [TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/.
304 [USE] Usenet announcement.
305 [WRS] Wind River Systems, Inc.
306 [dmr] Dennis Ritchie, via E-Mail
307
308 Multics 1965
309 UNIX Summer 1969
310 DEC PDP-7
311 First Edition 1971-11-03 [QCU]
312 DEC PDP-11/20, Assembler
313 Second Edition 1972-06-12 [QCU]
314 10 UNIX installations
315 Third Edition 1973-02-xx [QCU]
316 Pipes, 16 installations
317 Fourth Edition 1973-11-xx [QCU]
318 rewriting in C effected,
319 above 30 installations
320 Fifth Edition 1974-06-xx [QCU]
321 above 50 installations
322 Sixth Edition 1975-05-xx [QCU]
323 port to DEC Vax
324 Seventh Edition 1979-01-xx [QCU]
325 first portable UNIX
326 Eighth Edition 1985-02-xx [QCU]
327 VAX 11/750, VAX 11/780 [dmr]
328 descended from 4.1c BSD [dmr]
329 descended from 4.1 BSD [44B]
330 scooping-out and replacement of the character-device
331 and networking part by the streams mechanism
332
333 Ninth Edition 1986-09-xx [QCU]
334 Tenth Edition 1989-10-xx [QCU]
335
336 1BSD late 1977
337 1978-03-09 [QCU]
338 PDP-11, Pascal, ex(1)
339 30 free copies of 1BSD sent out
340 35 tapes sold for 50 USD [QCU]
341 2BSD mid 1978 [QCU] 1979-05-10 [TUHS]
342 75 2BSD tapes shipped
343 2.79BSD 1980-04-xx [TUHS]
344 2.8BSD 1981-07-xx [KSJ]
345
346 2.8.1BSD 1982-01-xx [QCU]
347 set of performance improvements
348 2.9BSD 1983-07-xx [KSJ]
349 2.9.1BSD 1983-11-xx [TUHS]
350 2.9BSD-Seismo 1985-08-xx [SMS]
351 2.10BSD 1987-04-xx [KKK]
352 2.10.1BSD 1989-01-xx [SMS]
353 2.11BSD 1992-02-xx [SMS]
354 2.11BSD rev #430 1999-12-13 [SMS]
355
356 32V 1978-1[01]-xx [QCU]
357 3BSD late 1979 [QCU] March 1980 [TUHS]
358 virtual memory, page replacement,
359 demand paging
360 4.0BSD 1980-10-xx
361 4.1BSD 1981-07-08 [DOC]
362 4.1aBSD 1982-04-xx
363 alpha release, 100 sites, networking [44B]
364 4.1bBSD internal release, fast filesystem [44B]
365 4.1cBSD late 1982
366 beta release, IPC [44B]
367 4.2BSD 1983-09-xx [QCU]
368 1983-08-03 [DOC]
369 4.3BSD 1986-06-xx [QCU]
370 1986-04-05 [KB], [DOC]
371 4.3BSD Tahoe 1988-06-15 [QCU], [DOC]
372 4.3BSD NET/1 1988-11-xx [QCU]
373 1989-01-01 [DOC]
374 4.3BSD Reno 1990-06-29 [QCU], [DOC]
375 4.3BSD NET/2 1991-06-28 [QCU], [DOC]
376
377 BSD/386 ALPHA 1991-12-xx [BSDI]
378 first code released to people outside BSDI
379 386BSD 0.0 1992-02-xx [DOC]
380 BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers
381 BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version
382 386BSD 0.1 1992-07-28 [DOC]
383 4.4BSD Alpha 1992-07-07
384 BSD/386 0.9.3 1992-10-xx [BSDI]
385 first external gamma; G customers
386 BSD/386 0.9.4 1992-12-xx [BSDI]
387 would have been 1.0 except for request
388 for preliminary injunction
389 BSD/386 1.0 1993-03-xx [BSDI]
390 injunction denied; first official release
391 NetBSD 0.8 1993-04-20 [NBD]
392 4.4BSD 1993-06-01 [USE]
393 NetBSD 0.9 1993-08-23 [NBD]
394 FreeBSD 1.0 1993-11-01 [FBD]
395 FreeBSD 1.0.2 1993-11-14 [FBD]
396 supersedes 1.0 13 days after release.
397 BSD/386 1.1 1994-02-xx [BSDI]
398 4.4BSD Lite 1994-03-01 [USE]
399 FreeBSD 1.1 1994-05-07 [FBD]
400 FreeBSD 1.1.5 1994-06-30 [FBD]
401 FreeBSD 1.1.5.1 1994-07-05 [FBD]
402 supersedes 1.1.5 5 days after release.
403 NetBSD 1.0 1994-10-26 [NBD]
404 386BSD 1.0 1994-11-12 [USE]
405 FreeBSD 2.0 1994-11-23 [FBD]
406 BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based
407 FreeBSD 2.0.5 1995-06-10 [FBD]
408 BSD/OS 2.0.1 1995-06-xx [BSDI]
409 4.4BSD Lite Release 2 1995-06-xx [44B]
410 the true final distribution from the CSRG
411 FreeBSD 2.1.0 1995-11-19 [FBD]
412 NetBSD 1.1 1995-11-26 [NBD]
413 BSD/OS 2.1 1996-01-xx [BSDI]
414 FreeBSD 2.1.5 1996-07-14 [FBD]
415 NetBSD 1.2 1996-10-04 [NBD]
416 OpenBSD 2.0 1996-10-18 [OBD]
417 FreeBSD 2.1.6 1996-11-16 [FBD]
418 FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release)
419 Rhapsody 1997-xx-xx
420 FreeBSD 2.1.7 1997-02-20 [FBD]
421 BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based
422 FreeBSD 2.2.0 1997-03-16 [FBD]
423 FreeBSD 2.2.1 1997-03-25 [FBD]
424 FreeBSD 2.2.2 1997-05-16 [FBD]
425 NetBSD 1.2.1 1997-05-20 [NBD] (patch release)
426 OpenBSD 2.1 1997-06-01 [OBD]
427 FreeBSD 2.2.5 1997-10-22 [FBD]
428 OpenBSD 2.2 1997-12-01 [OBD]
429 NetBSD 1.3 1998-01-04 [NBD]
430 FreeBSD 2.2.6 1998-03-25 [FBD]
431 NetBSD 1.3.1 1998-03-09 [NBD] (patch release)
432 BSD/OS 3.1 1998-03-xx [BSDI]
433 OpenBSD 2.3 1998-05-19 [OBD]
434 NetBSD 1.3.2 1998-05-29 [NBD] (patch release)
435 FreeBSD 2.2.7 1998-07-22 [FBD]
436 BSD/OS 4.0 1998-08-xx [BSDI]
437 2-lock MP support, ELF executables
438 FreeBSD 3.0 1998-10-16 [FBD]
439 FreeBSD-3.0 is a snapshot from -current,
440 while 3.1 and 3.2 are from 3.x-stable which
441 was branched quite some time after 3.0-release
442 FreeBSD 2.2.8 1998-11-29 [FBD]
443 OpenBSD 2.4 1998-12-01 [OBD]
444 NetBSD 1.3.3 1998-12-23 [NBD] (patch release)
445 FreeBSD 3.1 1999-02-15 [FBD]
446 BSD/OS 4.0.1 1999-03-xx [BSDI]
447 NetBSD 1.4 1999-05-12 [NBD]
448 FreeBSD 3.2 1999-05-17 [FBD]
449 OpenBSD 2.5 1999-05-19 [OBD]
450 NetBSD 1.4.1 1999-08-26 [NBD] (patch release)
451 FreeBSD 3.3 1999-09-17 [FBD]
452 OpenBSD 2.6 1999-12-01 [OBD]
453 FreeBSD 3.4 1999-12-20 [FBD]
454 BSD/OS 4.1 1999-12-xx [BSDI]
455 FreeBSD 4.0 2000-03-13 [FBD]
456 NetBSD 1.4.2 2000-03-19 [NBD] (patch release)
457 OpenBSD 2.7 2000-06-15 [OBD]
458 FreeBSD 3.5 2000-06-24 [FBD]
459 FreeBSD 4.1 2000-07-27 [FBD]
460 FreeBSD 3.5.1 2000-07-28 [FBD]
461 FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release)
462 FreeBSD 4.2 2000-11-21 [FBD]
463 NetBSD 1.4.3 2000-11-25 [NBD] (patch release)
464 BSD/OS 4.2 2000-11-29 [BSDI]
465 OpenBSD 2.8 2000-12-01 [OBD]
466 NetBSD 1.5 2000-12-06 [NBD]
467 Mac OS X 10.0 2001-03-24 [APL]
468 FreeBSD 4.3 2001-04-20 [FBD]
469 OpenBSD 2.9 2001-06-01 [OBD]
470 NetBSD 1.5.1 2001-07-11 [NBD] (patch release)
471 NetBSD 1.5.2 2001-09-13 [NBD] (patch release)
472 FreeBSD 4.4 2001-09-18 [FBD]
473 Mac OS X 10.1 2001-09-29 [APL]
474 OpenBSD 3.0 2001-12-01 [OBD]
475 FreeBSD 4.5 2002-01-29 [FBD]
476 BSD/OS 4.3 2002-03-14 [WRS]
477 OpenBSD 3.1 2002-05-19 [OBD]
478 FreeBSD 4.6 2002-06-15 [FBD]
479 NetBSD 1.5.3 2002-07-22 [NBD] (patch release)
480 FreeBSD 4.6.2 2002-08-15 [FBD] (patch release)
481 Mac OS X 10.2 2002-08-23 [APL]
482 NetBSD 1.6 2002-09-14 [NBD]
483 FreeBSD 4.7 2002-10-08 [FBD]
484 OpenBSD 3.2 2002-11-01 [OBD]
485 FreeBSD 5.0 2003-01-17 [FBD]
486 FreeBSD 5.0 is a separate branch off of
487 -current, similar to 3.0.
488 FreeBSD 4.8 2003-04-03 [FBD]
489 NetBSD 1.6.1 2003-04-21 [NBD] (patch release)
490 OpenBSD 3.3 2003-05-01 [OBD]
491 BSD/OS 5.0 2003-05-?? [WRS]
492 FreeBSD 5.1 2003-06-09 [FBD]
493 Mac OS X 10.3 2003-10-24 [APL]
494 FreeBSD 4.9 2003-10-28 [FBD]
495 BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version)
496 OpenBSD 3.4 2003-11-01 [OBD]
497 FreeBSD 5.2 2004-01-12 [FBD]
498 FreeBSD 5.2.1 2004-02-22 [FBD] (patch release)
499 NetBSD 1.6.2 2004-03-01 [NBD] (patch release)
500 OpenBSD 3.5 2004-04-01 [OBD]
501 FreeBSD 4.10 2004-05-27 [FBD]
502 DragonFly 1.0 2004-07-12 [DFB]
503 OpenBSD 3.6 2004-10-29 [OBD]
504 FreeBSD 5.3 2004-11-06 [FBD]
505 NetBSD 2.0 2004-12-09 [NBD]
506 FreeBSD 4.11 2005-01-25 [FBD]
507 DragonFly 1.2.0 2005-04-08 [DFB]
508 NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release)
509 Mac OS X 10.4 2005-04-29 [APL]
510 FreeBSD 5.4 2005-05-09 [FBD]
511 OpenBSD 3.7 2005-05-19 [OBD]
512 NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release)
513 OpenBSD 3.8 2005-11-01 [OBD]
514 FreeBSD 6.0 2005-11-01 [FBD]
515 NetBSD 2.1 2005-11-02 [NBD]
516 NetBSD 3.0 2005-12-23 [NBD]
517 DragonFly 1.4.0 2006-01-08 [DFB]
518 OpenBSD 3.9 2006-05-01 [OBD]
519 FreeBSD 6.1 2006-05-08 [FBD]
520 FreeBSD 5.5 2006-05-25 [FBD]
521 NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release)
522 DragonFly 1.6.0 2006-07-24 [DFB]
523 OpenBSD 4.0 2006-11-01 [OBD]
524 NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release)
525 NetBSD 3.1 2006-11-04 [NBD]
526 FreeBSD 6.2 2007-01-15 [FBD]
527 DragonFly 1.8.0 2007-01-30 [DFB]
528 OpenBSD 4.1 2007-05-01 [OBD]
529 DragonFly 1.10.0 2007-08-06 [DFB]
530 Mac OS X 10.5 2007-10-26 [APL]
531 OpenBSD 4.2 2007-11-01 [OBD]
532 NetBSD 4.0 2007-12-19 [NBD]
533 FreeBSD 6.3 2008-01-18 [FBD]
534 DragonFly 1.12.0 2008-02-26 [DFB]
535 FreeBSD 7.0 2008-02-27 [FBD]
536 OpenBSD 4.3 2008-05-01 [OBD]
537 DragonFly 2.0.0 2008-07-21 [DFB]
538 OpenBSD 4.4 2008-11-01 [OBD]
539 FreeBSD 6.4 2008-11-28 [FBD]
540 FreeBSD 7.1 2009-01-04 [FBD]
541 DragonFly 2.2.0 2009-02-17 [DFB]
542 NetBSD 5.0 2009-04-29 [NBD]
543 OpenBSD 4.5 2009-05-01 [OBD]
544 FreeBSD 7.2 2009-05-04 [FBD]
545 Mac OS X 10.6 2009-06-08 [APL]
546 NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release)
547 DragonFly 2.4.0 2009-09-16 [DFB]
548 OpenBSD 4.6 2009-10-18 [OBD]
549 FreeBSD 8.0 2009-11-26 [FBD]
550 NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release)
551 FreeBSD 7.3 2010-03-23 [FBD]
552 DragonFly 2.6.0 2010-03-28 [DFB]
553 OpenBSD 4.7 2010-05-19 [OBD]
554 FreeBSD 8.1 2010-07-24 [FBD]
555 DragonFly 2.8.2 2010-10-30 [DFB]
556 OpenBSD 4.8 2010-11-01 [OBD]
557 NetBSD 5.1 2010-11-19 [NBD]
558 FreeBSD 7.4 2011-02-24 [FBD]
559 FreeBSD 8.2 2011-02-24 [FBD]
560 DragonFly 2.10.1 2011-04-26 [DFB]
561 OpenBSD 4.9 2011-05-01 [OBD]
562 Mac OS X 10.7 2011-07-20 [APL]
563 OpenBSD 5.0 2011-11-01 [OBD]
564 FreeBSD 9.0 2012-01-12 [FBD]
565 NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release)
566 DragonFly 3.0.1 2012-02-21 [DFB]
567 FreeBSD 8.3 2012-04-18 [FBD]
568 OpenBSD 5.1 2012-05-01 [OBD]
569 Mac OS X 10.8 2012-07-25 [APL]
570 NetBSD 6.0 2012-10-17 [NBD]
571 OpenBSD 5.2 2012-11-01 [OBD]
572 DragonFly 3.2.1 2012-11-02 [DFB]
573 NetBSD 5.2 2012-12-03 [NBD]
574 NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release)
575 FreeBSD 9.1 2012-12-30 [FBD]
576 DragonFly 3.4.1 2013-04-29 [DFB]
577 OpenBSD 5.3 2013-05-01 [OBD]
578 NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release)
579 NetBSD 6.1 2013-05-18 [NBD]
580
581 Bibliography
582 ------------------------
583
584 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
585 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
586 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
587
588 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
589 Company, Inc., 1994. ISBN 0-201-54777-5
590
591 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
592 Quarterman. The Design and Implementation of the 4.4BSD Operating
593 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
594
595 McKusick, Marshall Kirk, George Neville-Neil. The Design and
596 Implementation of the FreeBSD Operating System.
597 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
598
599 Doug McIlroy. Research Unix Reader.
600
601 Michael G. Brown. The Role of BSD in the Development of Unix.
602 Presented to the Tasmanian Unix Special Interest Group of the
603 Australian Computer Society, Hobart, August 1993.
604
605 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
606 URL: http://www.byte.com/art/9410/sec8/art3.htm
607
608 Andreas Klemm, Lars Kller. If you're going to San Francisco ...
609 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
610
611 BSD Release Announcements collection.
612 URL: http://www.FreeBSD.org/releases/
613
614 BSD Hypertext Man Pages
615 URL: http://www.FreeBSD.org/cgi/man.cgi
616
617 UNIX history graphing project
618 URL: http://minnie.tuhs.org/Unix_History/index.html
619
620 UNIX history
621 URL: http://www.levenez.com/unix/
622
623 James Howard: The BSD Family Tree
624 URL: http://ezine.daemonnews.org/200104/bsd_family.html
625 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
626
627
628 Acknowledgments
629 ---------------
630
631 Josh Gilliam for suggestions, bug fixes, and finding very old
632 original BSD announcements from Usenet or tapes.
633
634 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
635
636 --
637 Copyright (c) 1997-2012 Wolfram Schneider <wosch (a] FreeBSD.ORG>
638 URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
639
640 $FreeBSD$
641