1 The UNIX system family tree: Research and BSD
2 ---------------------------------------------
14 Sixth Edition (V6) -----*
18 Seventh Edition (V7) |
22 \ 2BSD---------------*
30 4.1BSD --------------> 2.8BSD
32 4.1aBSD -----------\ |
36 *------ 4.1cBSD --------------> 2.9BSD
38 Eighth Edition | 2.9BSD-Seismo
40 +----<--- 4.2BSD 2.9.1BSD
42 +----<--- 4.3BSD -------------> 2.10BSD
44 Ninth Edition | / 2.10.1BSD
45 | 4.3BSD Tahoe-----+ |
55 *---------- 4.3BSD NET/2 -------------------+-------------*
57 386BSD 0.0 | | BSD/386 ALPHA
59 386BSD 0.1 ------------>+ | BSD/386 0.3.[13]
61 | 386BSD 1.0 | | BSD/386 0.9.[34]
64 | | 4.4BSD-Encumbered | |
65 | -NetBSD 0.8 | BSD/386 1.0
67 FreeBSD 1.0 <-----' NetBSD 0.9 | BSD/386 1.1
68 | | .----- 4.4BSD Lite |
69 FreeBSD 1.1 | / / | \ |
71 FreeBSD 1.1.5 .---|--------' / | \ |
73 FreeBSD 1.1.5.1 / | / | \ |
74 | / NetBSD 1.0 <-' | \ |
76 FreeBSD 2.0 <--' | | BSD/OS 2.0
78 FreeBSD 2.0.5 \ | BSD/OS 2.0.1
79 | .-----\------------- 4.4BSD Lite2 |
81 | | .-----|------Rhapsody | | | |
82 | | | | NetBSD 1.3 | | |
83 | | | | OpenBSD 2.3 | |
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 |
91 | FreeBSD 2.1.6.1 | | | \ | |
93 | FreeBSD 2.1.7 | | | | | |
94 | | | | | NetBSD 1.2.1 | |
95 | FreeBSD 2.1.7.1 | | | | |
98 *-FreeBSD 2.2 | | | | |
100 | FreeBSD 2.2.1 | | | | |
102 | FreeBSD 2.2.2 | | | OpenBSD 2.1 |
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 | | | | | |
115 | v | | | | OpenBSD 2.4 |
116 | FreeBSD 2.2.9 | | | | | |
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 |
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 | |
133 | FreeBSD 3.5 | | | | | OpenBSD 2.7 |
135 | FreeBSD 3.5.1 | | | | | | |
137 *---FreeBSD 4.1 | | | | | | |
139 | FreeBSD 4.1.1 | | / | | | |
141 | FreeBSD 4.2 Darwin/ | NetBSD 1.4.3 | |
142 | | Mac OS X | OpenBSD 2.8 BSD/OS 4.2
145 | | 10.0 NetBSD 1.5 | |
146 | FreeBSD 4.3 | | | | |
147 | | | | | OpenBSD 2.9 |
148 | | | | NetBSD 1.5.1 | |
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 | | |
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
165 | FreeBSD 4.9 | | | | OpenBSD 3.4 BSD/OS 5.1 ISE
167 | | | | | NetBSD 1.6.2 |
169 | | | | | | OpenBSD 3.5
171 | FreeBSD 4.10 | | | |
173 | FreeBSD 4.11 | | | |
175 | `-|------|-----------------|---------------------.
179 FreeBSD 5.1 | | | DragonFly 1.0
181 | ----- Mac OS X | | |
185 | FreeBSD 5.2.1 | | | |
187 *-------FreeBSD 5.3 | | | |
188 | | | | OpenBSD 3.6 |
190 | | | | | | | DragonFly 1.2.0
191 | | Mac OS X | | NetBSD 2.0.2 | |
193 | FreeBSD 5.4 | | | | | |
194 | | | | | | OpenBSD 3.7 |
195 | | | | | NetBSD 2.0.3 | |
197 *--FreeBSD | | | | v OpenBSD 3.8 |
200 | | | | | NetBSD 2.1 | |
202 | | | | NetBSD 3.0 | |
203 | | | | | | | | DragonFly 1.4.0
204 | | | | | | | OpenBSD 3.9 |
205 | FreeBSD | | | | | | |
207 | | FreeBSD 5.5 | | | | | |
208 | | | | | NetBSD 3.0.1 | DragonFly 1.6.0
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
219 | | | | OpenBSD 4.2 |
221 | FreeBSD 6.3 | | | | |
223 *--FreeBSD | | | | | DragonFly 1.12.0
225 | | | | | | OpenBSD 4.3 |
226 | | | | | NetBSD | DragonFly 2.0.0
227 | | FreeBSD | | 4.0.1 OpenBSD 4.4 |
230 | FreeBSD 7.1 | | | |
231 | | | | | DragonFly 2.2.0
232 | FreeBSD 7.2 | NetBSD 5.0 OpenBSD 4.5 |
234 | | Mac OS X | | \ | |
236 | | | | | NetBSD | DragonFly 2.4.0
237 | | | | | 5.0.1 OpenBSD 4.6 |
239 *--FreeBSD | | | | | | |
241 | | FreeBSD | | | NetBSD | |
242 | | 7.3 | | | 5.0.2 | DragonFly 2.6.0
243 | | | | | | OpenBSD 4.7 |
244 | FreeBSD | | | | | |
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 | | | | |
254 | | | | | | OpenBSD 5.0 |
255 *--FreeBSD | | | | | | |
256 | 9.0 | | | | NetBSD | DragonFly 3.0.1
257 | | FreeBSD | | | 5.1.2 | |
259 | | | | | | NetBSD | |
260 | | | | | | 5.1.3 | |
262 | | | | | | NetBSD | |
263 | | | | | | 5.1.4 | |
264 | | | | | | OpenBSD 5.1 |
265 | | | Mac OS X | `----. | |
267 | | | | NetBSD 6.0 | | |
268 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1
269 | FreeBSD | | | | | NetBSD | |
270 | 9.1 | | | | | 5.2 | |
272 | | | | | | | NetBSD | |
273 | | | | | | | 5.2.1 | |
275 | | | | | | | NetBSD | |
276 | | | | | | | 5.2.2 | |
279 | | | | | | NetBSD | |
280 | | | | | | 6.0.1 | |
281 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1
282 | | | | | | NetBSD | |
283 | | | | | | 6.0.2 | |
285 | | | | | | NetBSD | |
286 | | | | | | 6.0.3 | |
288 | | | | | | NetBSD | |
289 | | | | | | 6.0.4 | |
291 | | | | | | NetBSD | |
292 | | | | | | 6.0.5 | |
294 | | | | | |`-NetBSD 6.1 | |
295 | | FreeBSD | | | | |
296 | | 8.4 | | NetBSD 6.1.1 | |
298 | FreeBSD | | NetBSD 6.1.2 | |
299 | 9.2 Mac OS X | | | |
300 | | 10.9 | | OpenBSD 5.4 |
301 | `-----. | | | | DragonFly 3.6.0
303 *--FreeBSD | | | NetBSD 6.1.3 | |
305 | | | | | | | DragonFly 3.6.1
308 | | | | | | | DragonFly 3.6.2
309 | | | | | NetBSD 6.1.4 | |
311 | | | | | | OpenBSD 5.5 |
313 | | | | | | | DragonFly 3.8.0
316 | | | | | | | DragonFly 3.8.1
319 | | | | | | | DragonFly 3.6.3
321 | | FreeBSD | | | | |
323 | | | | NetBSD 6.1.5 | DragonFly 3.8.2
326 | | | | OpenBSD 5.6 |
328 | 10.1 | | | DragonFly 4.0.1
330 | | | | | DragonFly 4.0.2
332 | | | | | DragonFly 4.0.3
334 | | | | | DragonFly 4.0.4
336 | | | | | DragonFly 4.0.5
338 | | | | OpenBSD 5.7 |
339 | | | | | DragonFly 4.2.0
342 | | OS X NetBSD 7.0 | |
343 | | 10.11 | OpenBSD 5.8 |
344 | | | | | DragonFly 4.4.1
345 | FreeBSD | | OpenBSD 5.9 |
348 | | | | DragonFly 4.6.0
349 *--FreeBSD | | OpenBSD 6.0 |
353 FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current
360 Time tolerance +/- 6 months, depending on which book/article you read; if it
361 was the announcement in Usenet or if it was available as tape.
363 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
364 and John Quarterman. The Design and Implementation of
365 the 4.4BSD Operating System.
366 [APL] Apple website [http://www.apple.com/macosx/]
367 [BSDI] Berkeley Software Design, Inc.
368 [DFB] DragonFlyBSD Project, The.
369 [DOC] README, COPYRIGHT on tape.
370 [FBD] FreeBSD Project, The.
371 [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
372 Volume 11, Info 4, April, 1987.
373 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
374 comp.bugs.4bsd.ucb-fixes, June 15, 1988.
375 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
376 Changes in the Kernel in 2.9BSD. Second Berkeley Software
377 Distribution UNIX Version 2.9, July, 1983.
378 [NBD] NetBSD Project, The.
379 [OBD] OpenBSD Project, The.
380 [QCU] Salus, Peter H. A quarter century of UNIX.
381 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
382 [TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/.
383 [USE] Usenet announcement.
384 [WRS] Wind River Systems, Inc.
385 [dmr] Dennis Ritchie, via E-Mail
390 First Edition 1971-11-03 [QCU]
391 DEC PDP-11/20, Assembler
392 Second Edition 1972-06-12 [QCU]
393 10 UNIX installations
394 Third Edition 1973-02-xx [QCU]
395 Pipes, 16 installations
396 Fourth Edition 1973-11-xx [QCU]
397 rewriting in C effected,
398 above 30 installations
399 Fifth Edition 1974-06-xx [QCU]
400 above 50 installations
401 Sixth Edition 1975-05-xx [QCU]
403 Seventh Edition 1979-01-xx [QCU]
405 Eighth Edition 1985-02-xx [QCU]
406 VAX 11/750, VAX 11/780 [dmr]
407 descended from 4.1c BSD [dmr]
408 descended from 4.1 BSD [44B]
409 scooping-out and replacement of the character-device
410 and networking part by the streams mechanism
412 Ninth Edition 1986-09-xx [QCU]
413 Tenth Edition 1989-10-xx [QCU]
417 PDP-11, Pascal, ex(1)
418 30 free copies of 1BSD sent out
419 35 tapes sold for 50 USD [QCU]
420 2BSD mid 1978 [QCU] 1979-05-10 [TUHS]
421 75 2BSD tapes shipped
422 2.79BSD 1980-04-xx [TUHS]
423 2.8BSD 1981-07-xx [KSJ]
425 2.8.1BSD 1982-01-xx [QCU]
426 set of performance improvements
427 2.9BSD 1983-07-xx [KSJ]
428 2.9.1BSD 1983-11-xx [TUHS]
429 2.9BSD-Seismo 1985-08-xx [SMS]
430 2.10BSD 1987-04-xx [KKK]
431 2.10.1BSD 1989-01-xx [SMS]
432 2.11BSD 1992-02-xx [SMS]
433 2.11BSD rev #430 1999-12-13 [SMS]
435 32V 1978-1[01]-xx [QCU]
436 3BSD late 1979 [QCU] March 1980 [TUHS]
437 virtual memory, page replacement,
440 4.1BSD 1981-07-08 [DOC]
442 alpha release, 100 sites, networking [44B]
443 4.1bBSD internal release, fast filesystem [44B]
445 beta release, IPC [44B]
446 4.2BSD 1983-09-xx [QCU]
448 4.3BSD 1986-06-xx [QCU]
449 1986-04-05 [KB], [DOC]
450 4.3BSD Tahoe 1988-06-15 [QCU], [DOC]
451 4.3BSD NET/1 1988-11-xx [QCU]
453 4.3BSD Reno 1990-06-29 [QCU], [DOC]
454 4.3BSD NET/2 1991-06-28 [QCU], [DOC]
456 BSD/386 ALPHA 1991-12-xx [BSDI]
457 first code released to people outside BSDI
458 386BSD 0.0 1992-02-xx [DOC]
459 BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers
460 BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version
461 386BSD 0.1 1992-07-28 [DOC]
462 4.4BSD Alpha 1992-07-07
463 BSD/386 0.9.3 1992-10-xx [BSDI]
464 first external gamma; G customers
465 BSD/386 0.9.4 1992-12-xx [BSDI]
466 would have been 1.0 except for request
467 for preliminary injunction
468 BSD/386 1.0 1993-03-xx [BSDI]
469 injunction denied; first official release
470 NetBSD 0.8 1993-04-20 [NBD]
471 4.4BSD 1993-06-01 [USE]
472 NetBSD 0.9 1993-08-23 [NBD]
473 FreeBSD 1.0 1993-11-01 [FBD]
474 FreeBSD 1.0.2 1993-11-14 [FBD]
475 supersedes 1.0 13 days after release.
476 BSD/386 1.1 1994-02-xx [BSDI]
477 4.4BSD Lite 1994-03-01 [USE]
478 FreeBSD 1.1 1994-05-07 [FBD]
479 FreeBSD 1.1.5 1994-06-30 [FBD]
480 FreeBSD 1.1.5.1 1994-07-05 [FBD]
481 supersedes 1.1.5 5 days after release.
482 NetBSD 1.0 1994-10-26 [NBD]
483 386BSD 1.0 1994-11-12 [USE]
484 FreeBSD 2.0 1994-11-23 [FBD]
485 BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based
486 FreeBSD 2.0.5 1995-06-10 [FBD]
487 BSD/OS 2.0.1 1995-06-xx [BSDI]
488 4.4BSD Lite Release 2 1995-06-xx [44B]
489 the true final distribution from the CSRG
490 FreeBSD 2.1.0 1995-11-19 [FBD]
491 NetBSD 1.1 1995-11-26 [NBD]
492 BSD/OS 2.1 1996-01-xx [BSDI]
493 FreeBSD 2.1.5 1996-07-14 [FBD]
494 NetBSD 1.2 1996-10-04 [NBD]
495 OpenBSD 2.0 1996-10-18 [OBD]
496 FreeBSD 2.1.6 1996-11-16 [FBD]
497 FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release)
499 FreeBSD 2.1.7 1997-02-20 [FBD]
500 BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based
501 FreeBSD 2.2.0 1997-03-16 [FBD]
502 FreeBSD 2.2.1 1997-03-25 [FBD]
503 FreeBSD 2.2.2 1997-05-16 [FBD]
504 NetBSD 1.2.1 1997-05-20 [NBD] (patch release)
505 OpenBSD 2.1 1997-06-01 [OBD]
506 FreeBSD 2.2.5 1997-10-22 [FBD]
507 OpenBSD 2.2 1997-12-01 [OBD]
508 NetBSD 1.3 1998-01-04 [NBD]
509 FreeBSD 2.2.6 1998-03-25 [FBD]
510 NetBSD 1.3.1 1998-03-09 [NBD] (patch release)
511 BSD/OS 3.1 1998-03-xx [BSDI]
512 OpenBSD 2.3 1998-05-19 [OBD]
513 NetBSD 1.3.2 1998-05-29 [NBD] (patch release)
514 FreeBSD 2.2.7 1998-07-22 [FBD]
515 BSD/OS 4.0 1998-08-xx [BSDI]
516 2-lock MP support, ELF executables
517 FreeBSD 3.0 1998-10-16 [FBD]
518 FreeBSD-3.0 is a snapshot from -current,
519 while 3.1 and 3.2 are from 3.x-stable which
520 was branched quite some time after 3.0-release
521 FreeBSD 2.2.8 1998-11-29 [FBD]
522 OpenBSD 2.4 1998-12-01 [OBD]
523 NetBSD 1.3.3 1998-12-23 [NBD] (patch release)
524 FreeBSD 3.1 1999-02-15 [FBD]
525 BSD/OS 4.0.1 1999-03-xx [BSDI]
526 NetBSD 1.4 1999-05-12 [NBD]
527 FreeBSD 3.2 1999-05-17 [FBD]
528 OpenBSD 2.5 1999-05-19 [OBD]
529 NetBSD 1.4.1 1999-08-26 [NBD] (patch release)
530 FreeBSD 3.3 1999-09-17 [FBD]
531 OpenBSD 2.6 1999-12-01 [OBD]
532 FreeBSD 3.4 1999-12-20 [FBD]
533 BSD/OS 4.1 1999-12-xx [BSDI]
534 FreeBSD 4.0 2000-03-13 [FBD]
535 NetBSD 1.4.2 2000-03-19 [NBD] (patch release)
536 OpenBSD 2.7 2000-06-15 [OBD]
537 FreeBSD 3.5 2000-06-24 [FBD]
538 FreeBSD 4.1 2000-07-27 [FBD]
539 FreeBSD 3.5.1 2000-07-28 [FBD]
540 FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release)
541 FreeBSD 4.2 2000-11-21 [FBD]
542 NetBSD 1.4.3 2000-11-25 [NBD] (patch release)
543 BSD/OS 4.2 2000-11-29 [BSDI]
544 OpenBSD 2.8 2000-12-01 [OBD]
545 NetBSD 1.5 2000-12-06 [NBD]
546 Mac OS X 10.0 2001-03-24 [APL]
547 FreeBSD 4.3 2001-04-20 [FBD]
548 OpenBSD 2.9 2001-06-01 [OBD]
549 NetBSD 1.5.1 2001-07-11 [NBD] (patch release)
550 NetBSD 1.5.2 2001-09-13 [NBD] (patch release)
551 FreeBSD 4.4 2001-09-18 [FBD]
552 Mac OS X 10.1 2001-09-29 [APL]
553 OpenBSD 3.0 2001-12-01 [OBD]
554 FreeBSD 4.5 2002-01-29 [FBD]
555 BSD/OS 4.3 2002-03-14 [WRS]
556 OpenBSD 3.1 2002-05-19 [OBD]
557 FreeBSD 4.6 2002-06-15 [FBD]
558 NetBSD 1.5.3 2002-07-22 [NBD] (patch release)
559 FreeBSD 4.6.2 2002-08-15 [FBD] (patch release)
560 Mac OS X 10.2 2002-08-23 [APL]
561 NetBSD 1.6 2002-09-14 [NBD]
562 FreeBSD 4.7 2002-10-08 [FBD]
563 OpenBSD 3.2 2002-11-01 [OBD]
564 FreeBSD 5.0 2003-01-17 [FBD]
565 FreeBSD 5.0 is a separate branch off of
566 -current, similar to 3.0.
567 FreeBSD 4.8 2003-04-03 [FBD]
568 NetBSD 1.6.1 2003-04-21 [NBD] (patch release)
569 OpenBSD 3.3 2003-05-01 [OBD]
570 BSD/OS 5.0 2003-05-?? [WRS]
571 FreeBSD 5.1 2003-06-09 [FBD]
572 Mac OS X 10.3 2003-10-24 [APL]
573 FreeBSD 4.9 2003-10-28 [FBD]
574 BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version)
575 OpenBSD 3.4 2003-11-01 [OBD]
576 FreeBSD 5.2 2004-01-12 [FBD]
577 FreeBSD 5.2.1 2004-02-22 [FBD] (patch release)
578 NetBSD 1.6.2 2004-03-01 [NBD] (patch release)
579 OpenBSD 3.5 2004-04-01 [OBD]
580 FreeBSD 4.10 2004-05-27 [FBD]
581 DragonFly 1.0 2004-07-12 [DFB]
582 OpenBSD 3.6 2004-10-29 [OBD]
583 FreeBSD 5.3 2004-11-06 [FBD]
584 NetBSD 2.0 2004-12-09 [NBD]
585 FreeBSD 4.11 2005-01-25 [FBD]
586 DragonFly 1.2.0 2005-04-08 [DFB]
587 NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release)
588 Mac OS X 10.4 2005-04-29 [APL]
589 FreeBSD 5.4 2005-05-09 [FBD]
590 OpenBSD 3.7 2005-05-19 [OBD]
591 NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release)
592 OpenBSD 3.8 2005-11-01 [OBD]
593 FreeBSD 6.0 2005-11-01 [FBD]
594 NetBSD 2.1 2005-11-02 [NBD]
595 NetBSD 3.0 2005-12-23 [NBD]
596 DragonFly 1.4.0 2006-01-08 [DFB]
597 FreeBSD 2.2.9 2006-04-01 [FBD]
598 OpenBSD 3.9 2006-05-01 [OBD]
599 FreeBSD 6.1 2006-05-08 [FBD]
600 FreeBSD 5.5 2006-05-25 [FBD]
601 NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release)
602 DragonFly 1.6.0 2006-07-24 [DFB]
603 OpenBSD 4.0 2006-11-01 [OBD]
604 NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release)
605 NetBSD 3.1 2006-11-04 [NBD]
606 FreeBSD 6.2 2007-01-15 [FBD]
607 DragonFly 1.8.0 2007-01-30 [DFB]
608 OpenBSD 4.1 2007-05-01 [OBD]
609 DragonFly 1.10.0 2007-08-06 [DFB]
610 Mac OS X 10.5 2007-10-26 [APL]
611 OpenBSD 4.2 2007-11-01 [OBD]
612 NetBSD 4.0 2007-12-19 [NBD]
613 FreeBSD 6.3 2008-01-18 [FBD]
614 DragonFly 1.12.0 2008-02-26 [DFB]
615 FreeBSD 7.0 2008-02-27 [FBD]
616 OpenBSD 4.3 2008-05-01 [OBD]
617 DragonFly 2.0.0 2008-07-21 [DFB]
618 OpenBSD 4.4 2008-11-01 [OBD]
619 FreeBSD 6.4 2008-11-28 [FBD]
620 FreeBSD 7.1 2009-01-04 [FBD]
621 DragonFly 2.2.0 2009-02-17 [DFB]
622 NetBSD 5.0 2009-04-29 [NBD]
623 OpenBSD 4.5 2009-05-01 [OBD]
624 FreeBSD 7.2 2009-05-04 [FBD]
625 Mac OS X 10.6 2009-06-08 [APL]
626 NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release)
627 DragonFly 2.4.0 2009-09-16 [DFB]
628 OpenBSD 4.6 2009-10-18 [OBD]
629 FreeBSD 8.0 2009-11-26 [FBD]
630 NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release)
631 FreeBSD 7.3 2010-03-23 [FBD]
632 DragonFly 2.6.0 2010-03-28 [DFB]
633 OpenBSD 4.7 2010-05-19 [OBD]
634 FreeBSD 8.1 2010-07-24 [FBD]
635 DragonFly 2.8.2 2010-10-30 [DFB]
636 OpenBSD 4.8 2010-11-01 [OBD]
637 NetBSD 5.1 2010-11-19 [NBD]
638 FreeBSD 7.4 2011-02-24 [FBD]
639 FreeBSD 8.2 2011-02-24 [FBD]
640 DragonFly 2.10.1 2011-04-26 [DFB]
641 OpenBSD 4.9 2011-05-01 [OBD]
642 Mac OS X 10.7 2011-07-20 [APL]
643 OpenBSD 5.0 2011-11-01 [OBD]
644 FreeBSD 9.0 2012-01-12 [FBD]
645 NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release)
646 DragonFly 3.0.1 2012-02-21 [DFB]
647 FreeBSD 8.3 2012-04-18 [FBD]
648 OpenBSD 5.1 2012-05-01 [OBD]
649 Mac OS X 10.8 2012-07-25 [APL]
650 NetBSD 6.0 2012-10-17 [NBD]
651 OpenBSD 5.2 2012-11-01 [OBD]
652 DragonFly 3.2.1 2012-11-02 [DFB]
653 NetBSD 5.2 2012-12-03 [NBD]
654 NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release)
655 FreeBSD 9.1 2012-12-30 [FBD]
656 DragonFly 3.4.1 2013-04-29 [DFB]
657 OpenBSD 5.3 2013-05-01 [OBD]
658 NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release)
659 NetBSD 6.1 2013-05-18 [NBD]
660 FreeBSD 8.4 2013-06-07 [FBD]
661 NetBSD 6.1.1 2013-08-22 [NBD]
662 NetBSD 5.1.3 2013-09-29 [NBD]
663 NetBSD 5.2.1 2013-09-29 [NBD]
664 FreeBSD 9.2 2013-09-30 [FBD]
665 NetBSD 6.0.3 2013-09-30 [NBD]
666 NetBSD 6.1.2 2013-09-30 [NBD]
667 Mac OS X 10.9 2013-10-22 [APL]
668 OpenBSD 5.4 2013-11-01 [OBD]
669 DragonFly 3.6.0 2013-11-25 [DFB]
670 FreeBSD 10.0 2014-01-20 [FBD]
671 NetBSD 5.1.4 2014-01-25 [NBD]
672 NetBSD 5.2.2 2014-01-25 [NBD]
673 NetBSD 6.0.4 2014-01-25 [NBD]
674 NetBSD 6.1.3 2014-01-25 [NBD]
675 DragonFly 3.6.1 2014-02-22 [DFB]
676 DragonFly 3.6.2 2014-04-10 [DFB]
677 NetBSD 6.0.5 2014-04-12 [NDB]
678 NetBSD 6.1.4 2014-04-12 [NDB]
679 OpenBSD 5.5 2014-05-01 [OBD]
680 DragonFly 3.8.0 2014-06-04 [DFB]
681 DragonFly 3.8.1 2014-06-16 [DFB]
682 DragonFly 3.6.3 2014-06-17 [DFB]
683 FreeBSD 9.3 2014-07-05 [FBD]
684 DragonFly 3.8.2 2014-08-08 [DFB]
685 NetBSD 6.1.5 2014-09-22 [NBD]
686 Mac OS X 10.10 2014-10-16 [APL]
687 OpenBSD 5.6 2014-11-01 [OBD]
688 FreeBSD 10.1 2014-11-14 [FBD]
689 DragonFly 4.0.1 2014-11-25 [DFB]
690 DragonFly 4.0.2 2015-01-07 [DFB]
691 DragonFly 4.0.3 2015-01-21 [DFB]
692 DragonFly 4.0.4 2015-03-09 [DFB]
693 DragonFly 4.0.5 2015-03-23 [DFB]
694 OpenBSD 5.7 2015-05-01 [OBD]
695 DragonFly 4.2.0 2015-06-29 [DFB]
696 FreeBSD 10.2 2015-08-13 [FBD]
697 NetBSD 7.0 2015-09-25 [NBD]
698 OS X 10.11 2015-09-30 [APL]
699 OpenBSD 5.8 2015-10-18 [OBD]
700 DragonFly 4.4.1 2015-12-07 [DFB]
701 OpenBSD 5.9 2016-03-29 [OBD]
702 FreeBSD 10.3 2016-04-04 [FBD]
703 NetBSD 7.0.1 2016-05-22 [NBD]
704 DragonFly 4.6.0 2016-08-02 [DFB]
705 OpenBSD 6.0 2016-09-01 [OBD]
706 FreeBSD 11.0 2016-10-10 [FBD]
709 ------------------------
711 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
712 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
713 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
715 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
716 Company, Inc., 1994. ISBN 0-201-54777-5
718 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
719 Quarterman. The Design and Implementation of the 4.4BSD Operating
720 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
722 McKusick, Marshall Kirk, George Neville-Neil. The Design and
723 Implementation of the FreeBSD Operating System.
724 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
726 McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The
727 Design and Implementation of the FreeBSD Operating System, 2nd Edition.
728 Pearson Education, Inc., 2014. ISBN 0-321-96897-2
730 Doug McIlroy. Research Unix Reader.
732 Michael G. Brown. The Role of BSD in the Development of Unix.
733 Presented to the Tasmanian Unix Special Interest Group of the
734 Australian Computer Society, Hobart, August 1993.
736 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
737 URL: http://www.byte.com/art/9410/sec8/art3.htm
739 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
740 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
742 BSD Release Announcements collection.
743 URL: http://www.FreeBSD.org/releases/
745 BSD Hypertext Man Pages
746 URL: http://www.FreeBSD.org/cgi/man.cgi
748 UNIX history graphing project
749 URL: http://minnie.tuhs.org/Unix_History/index.html
752 URL: http://www.levenez.com/unix/
754 James Howard: The BSD Family Tree
755 URL: http://ezine.daemonnews.org/200104/bsd_family.html
756 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
762 Josh Gilliam for suggestions, bug fixes, and finding very old
763 original BSD announcements from Usenet or tapes.
765 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
768 Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
769 URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree
771 $FreeBSD: head/share/misc/bsd-family-tree 307002 2016-10-10 18:36:26Z maxim $