f95fd698f07d618d7f9c2eed7435ceaf00d00f8c
[dragonfly.git] / share / misc / bsd-family-tree
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  |     |       |      |      | |           OpenBSD 5.1                 |
262  |     |       |   Mac OS X  | `----.          |                       |
263  |     |       |     10.8    |       \         |                       |
264  |     |       |      |   NetBSD 6.0  |        |                       |
265  |     |       |      |      | | |    |    OpenBSD 5.2         DragonFly 3.2.1
266  |  FreeBSD    |      |      | | | NetBSD      |                       |
267  |    9.1      |      |      | | |   5.2       |                       |
268  |     |       |      |      | | |    |        |                       |
269  |     |       |      |      | | | NetBSD      |                       |
270  |     |       |      |      | | |  5.2.1      |                       |
271  |     |       |      |      | | |             |                       |
272  |     |       |      |      | |  \            |                       |
273  |     |       |      |      | |   NetBSD      |                       |
274  |     |       |      |      | |    6.0.1      |                       |
275  |     |       |      |      | |      |        |                       |
276  |     |       |      |      | |   NetBSD      |                       |
277  |     |       |      |      | |    6.0.2      |                       |
278  |     |       |      |      | |      |   OpenBSD 5.3          DragonFly 3.4.1
279  |     |       |      |      | |   NetBSD      |                       |
280  |     |       |      |      | |    6.0.3      |                       |
281  |     |       |      |      | |               |                       |
282  |     |       |      |      | |`-NetBSD 6.1   |                       |
283  |     |    FreeBSD   |      |       |         |                       |
284  |     |      8.4     |      |    NetBSD 6.1.1 |                       |
285  |     |              |      |       |         |                       |
286  |  FreeBSD           |      |    NetBSD 6.1.2 |                       |
287  |    9.2          Mac OS X  |       |         |                       |
288  |                   10.9    |       |    OpenBSD 5.4                  |
289  |                    |      |       |         |               DragonFly 3.6.0
290  |                    |      |       |         |                       |
291  *--FreeBSD           |      |    NetBSD 6.1.3 |                       |
292  |   10.0             |      |                 |                       |
293  |                    |      |                 |                       |
294  |                    |      |                 |                       |
295 FreeBSD 11 -current   |  NetBSD -current  OpenBSD -current             |
296  |                    |      |                 |                       |
297  v                    v      v                 v                       v
298
299 Time
300 ----------------
301
302 Time tolerance +/- 6 months, depending on which book/article you read; if it
303 was the announcement in Usenet or if it was available as tape.
304
305 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
306         and John Quarterman. The Design and Implementation of
307         the 4.4BSD Operating System.
308 [APL] Apple website [http://www.apple.com/macosx/]
309 [BSDI] Berkeley Software Design, Inc.
310 [DFB] DragonFlyBSD Project, The.
311 [DOC] README, COPYRIGHT on tape.
312 [FBD] FreeBSD Project, The.
313 [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
314         Volume 11, Info 4, April, 1987.
315 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
316         comp.bugs.4bsd.ucb-fixes, June 15, 1988.
317 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
318         Changes in the Kernel in 2.9BSD. Second Berkeley Software
319         Distribution UNIX Version 2.9, July, 1983.
320 [NBD] NetBSD Project, The.
321 [OBD] OpenBSD Project, The.
322 [QCU] Salus, Peter H. A quarter century of UNIX.
323 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
324 [TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
325 [USE] Usenet announcement.
326 [WRS] Wind River Systems, Inc.
327 [dmr] Dennis Ritchie, via E-Mail
328
329 Multics                 1965
330 UNIX                    Summer 1969
331                                 DEC PDP-7
332 First   Edition         1971-11-03 [QCU]
333                                 DEC PDP-11/20, Assembler
334 Second  Edition         1972-06-12 [QCU]
335                                 10 UNIX installations
336 Third   Edition         1973-02-xx [QCU]
337                                 Pipes, 16 installations
338 Fourth  Edition         1973-11-xx [QCU]
339                                 rewriting in C effected,
340                                 above 30 installations
341 Fifth   Edition         1974-06-xx [QCU]
342                                 above 50 installations
343 Sixth   Edition         1975-05-xx [QCU]
344                                 port to DEC Vax
345 Seventh Edition         1979-01-xx [QCU]
346                                 first portable UNIX
347 Eighth  Edition         1985-02-xx [QCU]
348                                 VAX 11/750, VAX 11/780 [dmr]
349                                 descended from 4.1c BSD [dmr]
350                                 descended from 4.1 BSD [44B]
351                         scooping-out and replacement of the character-device
352                         and networking part by the streams mechanism
353
354 Ninth   Edition         1986-09-xx [QCU]
355 Tenth   Edition         1989-10-xx [QCU]
356
357 1BSD                    late 1977
358                         1978-03-09 [QCU]
359                                 PDP-11, Pascal, ex(1)
360                                 30 free copies of 1BSD sent out
361                                 35 tapes sold for 50 USD [QCU]
362 2BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
363                                 75 2BSD tapes shipped
364 2.79BSD                 1980-04-xx [TUHS]
365 2.8BSD                  1981-07-xx [KSJ]
366
367 2.8.1BSD                1982-01-xx [QCU]
368                                 set of performance improvements
369 2.9BSD                  1983-07-xx [KSJ]
370 2.9.1BSD                1983-11-xx [TUHS]
371 2.9BSD-Seismo           1985-08-xx [SMS]
372 2.10BSD                 1987-04-xx [KKK]
373 2.10.1BSD               1989-01-xx [SMS]
374 2.11BSD                 1992-02-xx [SMS]
375 2.11BSD rev #430        1999-12-13 [SMS]
376
377 32V                     1978-1[01]-xx [QCU]
378 3BSD                    late 1979 [QCU] March 1980 [TUHS]
379                                 virtual memory, page replacement,
380                                 demand paging
381 4.0BSD                  1980-10-xx
382 4.1BSD                  1981-07-08 [DOC]
383 4.1aBSD                 1982-04-xx
384                                 alpha release, 100 sites, networking [44B]
385 4.1bBSD                         internal release, fast filesystem [44B]
386 4.1cBSD                 late 1982
387                                 beta release, IPC [44B]
388 4.2BSD                  1983-09-xx [QCU]
389                         1983-08-03 [DOC]
390 4.3BSD                  1986-06-xx [QCU]
391                         1986-04-05 [KB], [DOC]
392 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
393 4.3BSD NET/1            1988-11-xx [QCU]
394                         1989-01-01 [DOC]
395 4.3BSD Reno             1990-06-29 [QCU], [DOC]
396 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
397
398 BSD/386 ALPHA           1991-12-xx [BSDI]
399                                 first code released to people outside BSDI
400 386BSD 0.0              1992-02-xx [DOC]
401 BSD/386 0.3.1           1992-04-xx [BSDI] first ext. beta; B customers
402 BSD/386 0.3.3           1992-06-xx [BSDI] first CDROM version
403 386BSD 0.1              1992-07-28 [DOC]
404 4.4BSD Alpha            1992-07-07
405 BSD/386 0.9.3           1992-10-xx [BSDI]
406                                 first external gamma; G customers
407 BSD/386 0.9.4           1992-12-xx [BSDI]
408                                 would have been 1.0 except for request
409                                 for preliminary injunction
410 BSD/386 1.0             1993-03-xx [BSDI]
411                                 injunction denied; first official release
412 NetBSD 0.8              1993-04-20 [NBD]
413 4.4BSD                  1993-06-01 [USE]
414 NetBSD 0.9              1993-08-23 [NBD]
415 FreeBSD 1.0             1993-11-01 [FBD]
416 FreeBSD 1.0.2           1993-11-14 [FBD]
417                                 supersedes 1.0 13 days after release.
418 BSD/386 1.1             1994-02-xx [BSDI]
419 4.4BSD Lite             1994-03-01 [USE]
420 FreeBSD 1.1             1994-05-07 [FBD]
421 FreeBSD 1.1.5           1994-06-30 [FBD]
422 FreeBSD 1.1.5.1         1994-07-05 [FBD]
423                                 supersedes 1.1.5 5 days after release.
424 NetBSD 1.0              1994-10-26 [NBD]
425 386BSD 1.0              1994-11-12 [USE]
426 FreeBSD 2.0             1994-11-23 [FBD]
427 BSD/OS 2.0              1995-01-xx [BSDI] 4.4 lite based
428 FreeBSD 2.0.5           1995-06-10 [FBD]
429 BSD/OS 2.0.1            1995-06-xx [BSDI]
430 4.4BSD Lite Release 2   1995-06-xx [44B]
431                                 the true final distribution from the CSRG
432 FreeBSD 2.1.0           1995-11-19 [FBD]
433 NetBSD 1.1              1995-11-26 [NBD]
434 BSD/OS 2.1              1996-01-xx [BSDI]
435 FreeBSD 2.1.5           1996-07-14 [FBD]
436 NetBSD 1.2              1996-10-04 [NBD]
437 OpenBSD 2.0             1996-10-18 [OBD]
438 FreeBSD 2.1.6           1996-11-16 [FBD]
439 FreeBSD 2.1.6.1         1996-11-25 [FBD] (sendmail security release)
440 Rhapsody                1997-xx-xx
441 FreeBSD 2.1.7           1997-02-20 [FBD]
442 BSD/OS 3.0              1997-02-xx [BSDI] 4.4 lite2 based
443 FreeBSD 2.2.0           1997-03-16 [FBD]
444 FreeBSD 2.2.1           1997-03-25 [FBD]
445 FreeBSD 2.2.2           1997-05-16 [FBD]
446 NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
447 OpenBSD 2.1             1997-06-01 [OBD]
448 FreeBSD 2.2.5           1997-10-22 [FBD]
449 OpenBSD 2.2             1997-12-01 [OBD]
450 NetBSD 1.3              1998-01-04 [NBD]
451 FreeBSD 2.2.6           1998-03-25 [FBD]
452 NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
453 BSD/OS 3.1              1998-03-xx [BSDI]
454 OpenBSD 2.3             1998-05-19 [OBD]
455 NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
456 FreeBSD 2.2.7           1998-07-22 [FBD]
457 BSD/OS 4.0              1998-08-xx [BSDI]
458                                 2-lock MP support, ELF executables
459 FreeBSD 3.0             1998-10-16 [FBD]
460                                 FreeBSD-3.0 is a snapshot from -current,
461                                 while 3.1 and 3.2 are from 3.x-stable which
462                                 was branched quite some time after 3.0-release
463 FreeBSD 2.2.8           1998-11-29 [FBD]
464 OpenBSD 2.4             1998-12-01 [OBD]
465 NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
466 FreeBSD 3.1             1999-02-15 [FBD]
467 BSD/OS 4.0.1            1999-03-xx [BSDI]
468 NetBSD 1.4              1999-05-12 [NBD]
469 FreeBSD 3.2             1999-05-17 [FBD]
470 OpenBSD 2.5             1999-05-19 [OBD]
471 NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
472 FreeBSD 3.3             1999-09-17 [FBD]
473 OpenBSD 2.6             1999-12-01 [OBD]
474 FreeBSD 3.4             1999-12-20 [FBD]
475 BSD/OS 4.1              1999-12-xx [BSDI]
476 FreeBSD 4.0             2000-03-13 [FBD]
477 NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
478 OpenBSD 2.7             2000-06-15 [OBD]
479 FreeBSD 3.5             2000-06-24 [FBD]
480 FreeBSD 4.1             2000-07-27 [FBD]
481 FreeBSD 3.5.1           2000-07-28 [FBD]
482 FreeBSD 4.1.1           2000-09-25 [FBD] (a network-only patch release)
483 FreeBSD 4.2             2000-11-21 [FBD]
484 NetBSD 1.4.3            2000-11-25 [NBD] (patch release)
485 BSD/OS 4.2              2000-11-29 [BSDI]
486 OpenBSD 2.8             2000-12-01 [OBD]
487 NetBSD 1.5              2000-12-06 [NBD]
488 Mac OS X 10.0           2001-03-24 [APL]
489 FreeBSD 4.3             2001-04-20 [FBD]
490 OpenBSD 2.9             2001-06-01 [OBD]
491 NetBSD 1.5.1            2001-07-11 [NBD] (patch release)
492 NetBSD 1.5.2            2001-09-13 [NBD] (patch release)
493 FreeBSD 4.4             2001-09-18 [FBD]
494 Mac OS X 10.1           2001-09-29 [APL]
495 OpenBSD 3.0             2001-12-01 [OBD]
496 FreeBSD 4.5             2002-01-29 [FBD]
497 BSD/OS 4.3              2002-03-14 [WRS]
498 OpenBSD 3.1             2002-05-19 [OBD]
499 FreeBSD 4.6             2002-06-15 [FBD]
500 NetBSD 1.5.3            2002-07-22 [NBD] (patch release)
501 FreeBSD 4.6.2           2002-08-15 [FBD] (patch release)
502 Mac OS X 10.2           2002-08-23 [APL]
503 NetBSD 1.6              2002-09-14 [NBD]
504 FreeBSD 4.7             2002-10-08 [FBD]
505 OpenBSD 3.2             2002-11-01 [OBD]
506 FreeBSD 5.0             2003-01-17 [FBD]
507                                 FreeBSD 5.0 is a separate branch off of
508                                 -current, similar to 3.0.
509 FreeBSD 4.8             2003-04-03 [FBD]
510 NetBSD 1.6.1            2003-04-21 [NBD] (patch release)
511 OpenBSD 3.3             2003-05-01 [OBD]
512 BSD/OS 5.0              2003-05-?? [WRS]
513 FreeBSD 5.1             2003-06-09 [FBD]
514 Mac OS X 10.3           2003-10-24 [APL]
515 FreeBSD 4.9             2003-10-28 [FBD]
516 BSD/OS 5.1 ISE          2003-10-?? [WRS] (final version)
517 OpenBSD 3.4             2003-11-01 [OBD]
518 FreeBSD 5.2             2004-01-12 [FBD]
519 FreeBSD 5.2.1           2004-02-22 [FBD] (patch release)
520 NetBSD 1.6.2            2004-03-01 [NBD] (patch release)
521 OpenBSD 3.5             2004-04-01 [OBD]
522 FreeBSD 4.10            2004-05-27 [FBD]
523 DragonFly 1.0           2004-07-12 [DFB]
524 OpenBSD 3.6             2004-10-29 [OBD]
525 FreeBSD 5.3             2004-11-06 [FBD]
526 NetBSD 2.0              2004-12-09 [NBD]
527 FreeBSD 4.11            2005-01-25 [FBD]
528 DragonFly 1.2.0         2005-04-08 [DFB]
529 NetBSD 2.0.2            2005-04-14 [NBD] (security/critical release)
530 Mac OS X 10.4           2005-04-29 [APL]
531 FreeBSD 5.4             2005-05-09 [FBD]
532 OpenBSD 3.7             2005-05-19 [OBD]
533 NetBSD 2.0.3            2005-10-31 [NBD] (security/critical release)
534 OpenBSD 3.8             2005-11-01 [OBD]
535 FreeBSD 6.0             2005-11-01 [FBD]
536 NetBSD 2.1              2005-11-02 [NBD]
537 NetBSD 3.0              2005-12-23 [NBD]
538 DragonFly 1.4.0         2006-01-08 [DFB]
539 FreeBSD 2.2.9           2006-04-01 [FBD]
540 OpenBSD 3.9             2006-05-01 [OBD]
541 FreeBSD 6.1             2006-05-08 [FBD]
542 FreeBSD 5.5             2006-05-25 [FBD]
543 NetBSD 3.0.1            2006-07-24 [NBD] (security/critical release)
544 DragonFly 1.6.0         2006-07-24 [DFB]
545 OpenBSD 4.0             2006-11-01 [OBD]
546 NetBSD 3.0.2            2006-11-04 [NBD] (security/critical release)
547 NetBSD 3.1              2006-11-04 [NBD]
548 FreeBSD 6.2             2007-01-15 [FBD]
549 DragonFly 1.8.0         2007-01-30 [DFB]
550 OpenBSD 4.1             2007-05-01 [OBD]
551 DragonFly 1.10.0        2007-08-06 [DFB]
552 Mac OS X 10.5           2007-10-26 [APL]
553 OpenBSD 4.2             2007-11-01 [OBD]
554 NetBSD 4.0              2007-12-19 [NBD]
555 FreeBSD 6.3             2008-01-18 [FBD]
556 DragonFly 1.12.0        2008-02-26 [DFB]
557 FreeBSD 7.0             2008-02-27 [FBD]
558 OpenBSD 4.3             2008-05-01 [OBD]
559 DragonFly 2.0.0         2008-07-21 [DFB]
560 OpenBSD 4.4             2008-11-01 [OBD]
561 FreeBSD 6.4             2008-11-28 [FBD]
562 FreeBSD 7.1             2009-01-04 [FBD]
563 DragonFly 2.2.0         2009-02-17 [DFB]
564 NetBSD 5.0              2009-04-29 [NBD]
565 OpenBSD 4.5             2009-05-01 [OBD]
566 FreeBSD 7.2             2009-05-04 [FBD]
567 Mac OS X 10.6           2009-06-08 [APL]
568 NetBSD 5.0.1            2009-08-02 [NBD] (security/critical release)
569 DragonFly 2.4.0         2009-09-16 [DFB]
570 OpenBSD 4.6             2009-10-18 [OBD]
571 FreeBSD 8.0             2009-11-26 [FBD]
572 NetBSD 5.0.2            2010-02-12 [NBD] (security/critical release)
573 FreeBSD 7.3             2010-03-23 [FBD]
574 DragonFly 2.6.0         2010-03-28 [DFB]
575 OpenBSD 4.7             2010-05-19 [OBD]
576 FreeBSD 8.1             2010-07-24 [FBD]
577 DragonFly 2.8.2         2010-10-30 [DFB]
578 OpenBSD 4.8             2010-11-01 [OBD]
579 NetBSD 5.1              2010-11-19 [NBD]
580 FreeBSD 7.4             2011-02-24 [FBD]
581 FreeBSD 8.2             2011-02-24 [FBD]
582 DragonFly 2.10.1        2011-04-26 [DFB]
583 OpenBSD 4.9             2011-05-01 [OBD]
584 Mac OS X 10.7           2011-07-20 [APL]
585 OpenBSD 5.0             2011-11-01 [OBD]
586 FreeBSD 9.0             2012-01-12 [FBD]
587 NetBSD 5.1.2            2012-02-02 [NBD] (security/critical release)
588 DragonFly 3.0.1         2012-02-21 [DFB]
589 FreeBSD 8.3             2012-04-18 [FBD]
590 OpenBSD 5.1             2012-05-01 [OBD]
591 Mac OS X 10.8           2012-07-25 [APL]
592 NetBSD 6.0              2012-10-17 [NBD]
593 OpenBSD 5.2             2012-11-01 [OBD]
594 DragonFly 3.2.1         2012-11-02 [DFB]
595 NetBSD 5.2              2012-12-03 [NBD]
596 NetBSD 6.0.1            2012-12-26 [NBD] (security/critical release)
597 FreeBSD 9.1             2012-12-30 [FBD]
598 DragonFly 3.4.1         2013-04-29 [DFB]
599 OpenBSD 5.3             2013-05-01 [OBD]
600 NetBSD 6.0.2            2013-05-18 [NBD] (security/critical release)
601 NetBSD 6.1              2013-05-18 [NBD]
602 FreeBSD 8.4             2013-06-07 [FBD]
603 NetBSD 6.1.1            2013-08-22 [NBD]
604 NetBSD 5.1.3            2013-09-29 [NBD]
605 NetBSD 5.2.1            2013-09-29 [NBD]
606 FreeBSD 9.2             2013-09-30 [FBD]
607 NetBSD 6.0.3            2013-09-30 [NBD]
608 NetBSD 6.1.2            2013-09-30 [NBD]
609 Mac OS X 10.9           2013-10-22 [APL]
610 OpenBSD 5.4             2013-11-01 [OBD]
611 DragonFly 3.6.0         2013-11-25 [DFB]
612 FreeBSD 10.0            2014-01-20 [FBD]
613 NetBSD 6.1.3            2014-01-27 [NBD]
614
615 Bibliography
616 ------------------------
617
618 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
619 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
620 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
621
622 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
623 Company, Inc., 1994. ISBN 0-201-54777-5
624
625 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
626 Quarterman. The Design and Implementation of the 4.4BSD Operating
627 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
628
629 McKusick, Marshall Kirk, George Neville-Neil. The Design and
630 Implementation of the FreeBSD Operating System.
631 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
632
633 Doug McIlroy. Research Unix Reader.
634
635 Michael G. Brown. The Role of BSD in the Development of Unix.
636 Presented to the Tasmanian Unix Special Interest Group of the
637 Australian Computer Society, Hobart, August 1993.
638
639 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
640 URL: http://www.byte.com/art/9410/sec8/art3.htm
641
642 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
643 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
644
645 BSD Release Announcements collection.
646 URL: http://www.FreeBSD.org/releases/
647
648 BSD Hypertext Man Pages
649 URL: http://www.FreeBSD.org/cgi/man.cgi
650
651 UNIX history graphing project
652 URL: http://minnie.tuhs.org/Unix_History/index.html
653
654 UNIX history
655 URL: http://www.levenez.com/unix/
656
657 James Howard: The BSD Family Tree
658 URL: http://ezine.daemonnews.org/200104/bsd_family.html
659 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
660
661
662 Acknowledgments
663 ---------------
664
665 Josh Gilliam for suggestions, bug fixes, and finding very old
666 original BSD announcements from Usenet or tapes.
667
668 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
669
670 --
671 Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
672 URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree
673
674 $FreeBSD: head/share/misc/bsd-family-tree 261318 2014-01-31 08:48:25Z maxim $