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/share/misc/bsd-family-tree

https://bitbucket.org/freebsd/freebsd-head/
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  1The UNIX system family tree: Research and BSD
  2---------------------------------------------
  3
  4First Edition (V1)
  5     |
  6Second Edition (V2)
  7     |
  8Third Edition (V3)
  9     |
 10Fourth Edition (V4)
 11     |
 12Fifth Edition (V5)
 13     |
 14Sixth Edition (V6) -----*
 15       \                |
 16        \               |
 17         \              |
 18Seventh 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     /            |                      |
 38Eighth Edition    |                   2.9BSD-Seismo
 39     |            |                      |
 40     +----<--- 4.2BSD               2.9.1BSD
 41     |            |                      |
 42     +----<--- 4.3BSD -------------> 2.10BSD
 43     |            |               /      |
 44Ninth Edition     |              / 2.10.1BSD
 45     |         4.3BSD Tahoe-----+        |
 46     |            |              \       |
 47     |            |                \     |
 48     v            |                  2.11BSD
 49Tenth Edition     |                      |
 50                  |                  2.11BSD rev #430
 51               4.3BSD NET/1              |
 52                  |                      v
 53               4.3BSD Reno
 54                  |
 55   *---------- 4.3BSD NET/2 -------------------+-------------*
 56   |                    |                      |             |
 57386BSD 0.0              |                      |           BSD/386 ALPHA
 58   |                    |                      |             |
 59386BSD 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   |                    |                      |             |
 67FreeBSD 1.0          NetBSD 0.9                |           BSD/386 1.1
 68   |                    |           .----- 4.4BSD Lite       |
 69FreeBSD 1.1             |          /   /       |     \       |
 70   |                    |         /   /        |      \      |
 71FreeBSD 1.1.5       .---|--------'   /         |       \     |
 72   |               /    |           /          |        \    |
 73FreeBSD 1.1.5.1   /     |          /           |         \   |
 74   |             /   NetBSD 1.0 <-'            |          \  |
 75   |            /       |                      |           \ |
 76FreeBSD 2.0 <--'        |                      |           BSD/OS 2.0
 77   |                     \                     |             |
 78FreeBSD 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     |
 85FreeBSD 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       |
116FreeBSD 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
128FreeBSD 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 |                    |      |                 |                      \
175FreeBSD 5.0           |      |                 |                       |
176 |                    |      |                 |                       |
177FreeBSD 5.1           |      |                 |                 DragonFly 1.0
178 |          \         |      |                 |                       |
179 |           ----- Mac OS X  |                 |                       |
180 |                   10.3    |                 |                       |
181FreeBSD 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 |     |       |      |      |                 |                DragonFly 2.0.0
225 |     |    FreeBSD   |      |             OpenBSD 4.4                 |
226 |     |      6.4     |      |                 |                       |
227 |     |              |      |                 |                       |
228 |  FreeBSD 7.1       |      |                 |                       |
229 |     |              |      |                 |                DragonFly 2.2.0
230 |  FreeBSD 7.2       |   NetBSD 5.0       OpenBSD 4.5                 |
231 |             \      |      |    |            |                       |
232 |              |  Mac OS X  |    |            |                       |
233 |              |    10.6    |    |            |                       |
234 |              |     |      |    |            |                DragonFly 2.4.0
235 |              |     |      |    |        OpenBSD 4.6                 |
236 |              |     |      |    |            |                       |
237 *--FreeBSD     |     |      |    |            |                       |
238 |    8.0       |     |      |    |            |                       |
239 |     |     FreeBSD  |      |    |            |                       |
240 |     |       7.3    |      |    |            |                DragonFly 2.6.0
241 |     |        |     |      |    |        OpenBSD 4.7                 |
242 |  FreeBSD     |     |      |    |            |                       |
243 |    8.1       |     |      |    |            |                       |
244 |     |        |     |      |    |            |                DragonFly 2.8.2
245 |     |        |     |      |    |        OpenBSD 4.8                 |
246 |     |        |     |      | NetBSD 5.1      |                       |
247 |  FreeBSD  FreeBSD  |      |                 |                       |
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      |      |      |                 |               DragonFly 3.0.1
255 |     v    FreeBSD   |      |                 |                       |
256 |            8.3     |      |             OpenBSD 5.1                 |
257 |                 Mac OS X  |                 |                       |
258 |                   10.8    |                 |                       |
259FreeBSD 10 -current   |  NetBSD -current  OpenBSD -current             |
260 |                    |      |                 |                       |
261 v                    v      v                 v                       v
262
263Time
264----------------
265
266Time tolerance +/- 6 months, depending on which book/article you read; if it
267was the announcement in Usenet or if it was available as tape.
268
269[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
270	and John Quarterman. The Design and Implementation of
271	the 4.4BSD Operating System.
272[APL] Apple website [http://www.apple.com/macosx/]
273[BSDI] Berkeley Software Design, Inc.
274[DFB] DragonFlyBSD Project, The.
275[DOC] README, COPYRIGHT on tape.
276[FBD] FreeBSD Project, The.
277[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
278	Volume 11, Info 4, April, 1987.
279[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
280	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
281[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
282	Changes in the Kernel in 2.9BSD. Second Berkeley Software
283	Distribution UNIX Version 2.9, July, 1983.
284[NBD] NetBSD Project, The.
285[OBD] OpenBSD Project, The.
286[QCU] Salus, Peter H. A quarter century of UNIX.
287[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
288[TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
289[USE] Usenet announcement.
290[WRS] Wind River Systems, Inc.
291[dmr] Dennis Ritchie, via E-Mail
292
293Multics                 1965
294UNIX                    Summer 1969
295				DEC PDP-7
296First   Edition         1971-11-03 [QCU]
297				DEC PDP-11/20, Assembler
298Second  Edition         1972-06-12 [QCU]
299				10 UNIX installations
300Third   Edition         1973-02-xx [QCU]
301				Pipes, 16 installations
302Fourth  Edition         1973-11-xx [QCU]
303				rewriting in C effected,
304                                above 30 installations
305Fifth   Edition         1974-06-xx [QCU]
306				above 50 installations
307Sixth   Edition         1975-05-xx [QCU]
308				port to DEC Vax
309Seventh Edition         1979-01-xx [QCU]
310				first portable UNIX
311Eighth  Edition         1985-02-xx [QCU]
312				VAX 11/750, VAX 11/780 [dmr]
313				descended from 4.1c BSD [dmr]
314				descended from 4.1 BSD [44B]
315			scooping-out and replacement of the character-device
316			and networking part by the streams mechanism
317
318Ninth   Edition         1986-09-xx [QCU]
319Tenth   Edition         1989-10-xx [QCU]
320
3211BSD                    late 1977
322			1978-03-09 [QCU]
323				PDP-11, Pascal, ex(1)
324				30 free copies of 1BSD sent out
325				35 tapes sold for 50 USD [QCU]
3262BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
327				75 2BSD tapes shipped
3282.79BSD			1980-04-xx [TUHS]
3292.8BSD			1981-07-xx [KSJ]
330
3312.8.1BSD		1982-01-xx [QCU]
332				set of performance improvements
3332.9BSD			1983-07-xx [KSJ]
3342.9.1BSD                1983-11-xx [TUHS]
3352.9BSD-Seismo		1985-08-xx [SMS]
3362.10BSD			1987-04-xx [KKK]
3372.10.1BSD		1989-01-xx [SMS]
3382.11BSD			1992-02-xx [SMS]
3392.11BSD rev #430	1999-12-13 [SMS]
340
34132V			1978-1[01]-xx [QCU]
3423BSD                    late 1979 [QCU] March 1980 [TUHS]
343				virtual memory, page replacement,
344                        	demand paging
3454.0BSD                  1980-10-xx
3464.1BSD                  1981-07-08 [DOC]
3474.1aBSD                 1982-04-xx
348				alpha release, 100 sites, networking [44B]
3494.1bBSD				internal release, fast filesystem [44B]
3504.1cBSD                 late 1982
351				beta release, IPC [44B]
3524.2BSD                  1983-09-xx [QCU]
353                        1983-08-03 [DOC]
3544.3BSD                  1986-06-xx [QCU]
355			1986-04-05 [KB], [DOC]
3564.3BSD Tahoe            1988-06-15 [QCU], [DOC]
3574.3BSD NET/1            1988-11-xx [QCU]
358                        1989-01-01 [DOC]
3594.3BSD Reno             1990-06-29 [QCU], [DOC]
3604.3BSD NET/2            1991-06-28 [QCU], [DOC]
361
362BSD/386 ALPHA		1991-12-xx [BSDI]
363				first code released to people outside BSDI
364386BSD 0.0              1992-02-xx [DOC]
365BSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
366BSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
367386BSD 0.1              1992-07-28 [DOC]
3684.4BSD Alpha            1992-07-07
369BSD/386 0.9.3		1992-10-xx [BSDI]
370				first external gamma; G customers
371BSD/386 0.9.4		1992-12-xx [BSDI]
372				would have been 1.0 except for request
373				for preliminary injunction
374BSD/386 1.0 		1993-03-xx [BSDI]
375				injunction denied; first official release
376NetBSD 0.8              1993-04-20 [NBD]
3774.4BSD                  1993-06-01 [USE]
378NetBSD 0.9              1993-08-23 [NBD]
379FreeBSD 1.0		1993-11-01 [FBD]
380FreeBSD 1.0.2		1993-11-14 [FBD]
381				supersedes 1.0 13 days after release.
382BSD/386 1.1		1994-02-xx [BSDI]
3834.4BSD Lite             1994-03-01 [USE]
384FreeBSD 1.1		1994-05-07 [FBD]
385FreeBSD 1.1.5		1994-06-30 [FBD]
386FreeBSD 1.1.5.1		1994-07-05 [FBD]
387				supersedes 1.1.5 5 days after release.
388NetBSD 1.0              1994-10-26 [NBD]
389386BSD 1.0              1994-11-12 [USE]
390FreeBSD 2.0		1994-11-23 [FBD]
391BSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
392FreeBSD 2.0.5		1995-06-10 [FBD]
393BSD/OS 2.0.1		1995-06-xx [BSDI]
3944.4BSD Lite Release 2	1995-06-xx [44B]
395				the true final distribution from the CSRG
396FreeBSD 2.1.0		1995-11-19 [FBD]
397NetBSD 1.1              1995-11-26 [NBD]
398BSD/OS 2.1		1996-01-xx [BSDI]
399FreeBSD 2.1.5		1996-07-14 [FBD]
400NetBSD 1.2              1996-10-04 [NBD]
401OpenBSD 2.0             1996-10-18 [OBD]
402FreeBSD 2.1.6		1996-11-16 [FBD]
403FreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
404Rhapsody		1997-xx-xx
405FreeBSD 2.1.7		1997-02-20 [FBD]
406BSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
407FreeBSD 2.2.0		1997-03-16 [FBD]
408FreeBSD 2.2.1		1997-03-25 [FBD]
409FreeBSD 2.2.2		1997-05-16 [FBD]
410NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
411OpenBSD 2.1             1997-06-01 [OBD]
412FreeBSD 2.2.5		1997-10-22 [FBD]
413OpenBSD 2.2             1997-12-01 [OBD]
414NetBSD 1.3              1998-01-04 [NBD]
415FreeBSD 2.2.6		1998-03-25 [FBD]
416NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
417BSD/OS 3.1		1998-03-xx [BSDI]
418OpenBSD 2.3             1998-05-19 [OBD]
419NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
420FreeBSD 2.2.7		1998-07-22 [FBD]
421BSD/OS 4.0		1998-08-xx [BSDI]
422				2-lock MP support, ELF executables
423FreeBSD 3.0		1998-10-16 [FBD]
424				FreeBSD-3.0 is a snapshot from -current,
425				while 3.1 and 3.2 are from 3.x-stable which
426				was branched quite some time after 3.0-release
427FreeBSD 2.2.8           1998-11-29 [FBD]
428OpenBSD 2.4             1998-12-01 [OBD]
429NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
430FreeBSD 3.1		1999-02-15 [FBD]
431BSD/OS 4.0.1		1999-03-xx [BSDI]
432NetBSD 1.4              1999-05-12 [NBD]
433FreeBSD 3.2             1999-05-17 [FBD]
434OpenBSD 2.5             1999-05-19 [OBD]
435NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
436FreeBSD 3.3             1999-09-17 [FBD]
437OpenBSD 2.6             1999-12-01 [OBD]
438FreeBSD 3.4             1999-12-20 [FBD]
439BSD/OS 4.1		1999-12-xx [BSDI]
440FreeBSD 4.0             2000-03-13 [FBD]
441NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
442OpenBSD 2.7             2000-06-15 [OBD]
443FreeBSD 3.5		2000-06-24 [FBD]
444FreeBSD 4.1		2000-07-27 [FBD]
445FreeBSD 3.5.1		2000-07-28 [FBD]
446FreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
447FreeBSD 4.2  		2000-11-21 [FBD]
448NetBSD 1.4.3		2000-11-25 [NBD] (patch release)
449BSD/OS 4.2		2000-11-29 [BSDI]
450OpenBSD 2.8		2000-12-01 [OBD]
451NetBSD 1.5              2000-12-06 [NBD]
452Mac OS X 10.0           2001-03-24 [APL]
453FreeBSD 4.3  		2001-04-20 [FBD]
454OpenBSD 2.9  		2001-06-01 [OBD]
455NetBSD 1.5.1		2001-07-11 [NBD] (patch release)
456NetBSD 1.5.2		2001-09-13 [NBD] (patch release)
457FreeBSD 4.4  		2001-09-18 [FBD]
458Mac OS X 10.1		2001-09-29 [APL]
459OpenBSD 3.0		2001-12-01 [OBD]
460FreeBSD 4.5  		2002-01-29 [FBD]
461BSD/OS 4.3		2002-03-14 [WRS]
462OpenBSD 3.1		2002-05-19 [OBD]
463FreeBSD 4.6  		2002-06-15 [FBD]
464NetBSD 1.5.3		2002-07-22 [NBD] (patch release)
465FreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
466Mac OS X 10.2		2002-08-23 [APL]
467NetBSD 1.6		2002-09-14 [NBD]
468FreeBSD 4.7		2002-10-08 [FBD]
469OpenBSD 3.2		2002-11-01 [OBD]
470FreeBSD 5.0		2003-01-17 [FBD]
471				FreeBSD 5.0 is a separate branch off of
472				-current, similar to 3.0.
473FreeBSD 4.8		2003-04-03 [FBD]
474NetBSD 1.6.1		2003-04-21 [NBD] (patch release)
475OpenBSD 3.3		2003-05-01 [OBD]
476BSD/OS 5.0		2003-05-?? [WRS]
477FreeBSD 5.1		2003-06-09 [FBD]
478Mac OS X 10.3		2003-10-24 [APL]
479FreeBSD 4.9		2003-10-28 [FBD]
480BSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
481OpenBSD 3.4		2003-11-01 [OBD]
482FreeBSD 5.2		2004-01-12 [FBD]
483FreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
484NetBSD 1.6.2		2004-03-01 [NBD] (patch release)
485OpenBSD 3.5		2004-04-01 [OBD]
486FreeBSD 4.10		2004-05-27 [FBD]
487DragonFly 1.0		2004-07-12 [DFB]
488OpenBSD 3.6		2004-10-29 [OBD]
489FreeBSD 5.3		2004-11-06 [FBD]
490NetBSD 2.0		2004-12-09 [NBD]
491FreeBSD 4.11		2005-01-25 [FBD]
492DragonFly 1.2.0		2005-04-08 [DFB]
493NetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
494Mac OS X 10.4		2005-04-29 [APL]
495FreeBSD 5.4		2005-05-09 [FBD]
496OpenBSD 3.7		2005-05-19 [OBD]
497NetBSD 2.0.3		2005-10-31 [NBD] (security/critical release)
498OpenBSD 3.8		2005-11-01 [OBD]
499FreeBSD 6.0		2005-11-01 [FBD]
500NetBSD 2.1		2005-11-02 [NBD]
501NetBSD 3.0		2005-12-23 [NBD]
502DragonFly 1.4.0		2006-01-08 [DFB]
503OpenBSD 3.9		2006-05-01 [OBD]
504FreeBSD 6.1		2006-05-08 [FBD]
505FreeBSD 5.5		2006-05-25 [FBD]
506NetBSD 3.0.1		2006-07-24 [NBD] (security/critical release)
507DragonFly 1.6.0		2006-07-24 [DFB]
508OpenBSD 4.0		2006-11-01 [OBD]
509NetBSD 3.0.2		2006-11-04 [NBD] (security/critical release)
510NetBSD 3.1		2006-11-04 [NBD]
511FreeBSD 6.2		2007-01-15 [FBD]
512DragonFly 1.8.0		2007-01-30 [DFB]
513OpenBSD 4.1		2007-05-01 [OBD]
514DragonFly 1.10.0	2007-08-06 [DFB]
515Mac OS X 10.5		2007-10-26 [APL]
516OpenBSD 4.2		2007-11-01 [OBD]
517NetBSD 4.0		2007-12-19 [NBD]
518FreeBSD 6.3		2008-01-18 [FBD]
519DragonFly 1.12.0	2008-02-26 [DFB]
520FreeBSD 7.0		2008-02-27 [FBD]
521OpenBSD 4.3		2008-05-01 [OBD]
522DragonFly 2.0.0		2008-07-21 [DFB]
523OpenBSD 4.4		2008-11-01 [OBD]
524FreeBSD 6.4		2008-11-28 [FBD]
525FreeBSD 7.1		2009-01-04 [FBD]
526DragonFly 2.2.0		2009-02-17 [DFB]
527NetBSD 5.0		2009-04-29 [NBD]
528OpenBSD 4.5		2009-05-01 [OBD]
529FreeBSD 7.2		2009-05-04 [FBD]
530Mac OS X 10.6		2009-06-08 [APL]
531DragonFly 2.4.0		2009-09-16 [DFB]
532OpenBSD 4.6		2009-10-18 [OBD]
533FreeBSD 8.0		2009-11-26 [FBD]
534FreeBSD 7.3		2010-03-23 [FBD]
535DragonFly 2.6.0		2010-03-28 [DFB]
536OpenBSD 4.7		2010-05-19 [OBD]
537FreeBSD 8.1		2010-07-24 [FBD]
538DragonFly 2.8.2		2010-10-30 [DFB]
539OpenBSD 4.8		2010-11-01 [OBD]
540NetBSD 5.1		2010-11-19 [NBD]
541FreeBSD 7.4		2011-02-24 [FBD]
542FreeBSD 8.2		2011-02-24 [FBD]
543DragonFly 2.10.1	2011-04-26 [DFB]
544OpenBSD 4.9		2011-05-01 [OBD]
545Mac OS X 10.7		2011-07-20 [APL]
546OpenBSD 5.0		2011-11-01 [OBD]
547FreeBSD 9.0		2012-01-12 [FBD]
548DragonFly 3.0.1		2012-02-21 [DFB]
549FreeBSD 8.3		2012-04-18 [FBD]
550OpenBSD 5.1		2012-05-01 [OBD]
551Mac OS X 10.8		2012-07-25 [APL]
552
553Bibliography
554------------------------
555
556Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
557Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
558System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
559
560Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
561Company, Inc., 1994. ISBN 0-201-54777-5
562
563McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
564Quarterman. The Design and Implementation of the 4.4BSD Operating
565System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
566
567McKusick, Marshall Kirk, George Neville-Neil. The Design and
568Implementation of the FreeBSD Operating System.
569Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
570
571Doug McIlroy. Research Unix Reader.
572
573Michael G. Brown. The Role of BSD in the Development of Unix.
574Presented to the Tasmanian Unix Special Interest Group of the
575Australian Computer Society, Hobart, August 1993.
576
577Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
578URL: http://www.byte.com/art/9410/sec8/art3.htm
579
580Andreas Klemm, Lars Kรถller. If you're going to San Francisco ...
581Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
582
583BSD Release Announcements collection.
584URL: http://www.FreeBSD.org/releases/
585
586BSD Hypertext Man Pages
587URL: http://www.FreeBSD.org/cgi/man.cgi
588
589UNIX history graphing project
590URL: http://minnie.tuhs.org/Unix_History/index.html
591
592UNIX history
593URL: http://www.levenez.com/unix/
594
595James Howard: The BSD Family Tree
596URL: http://ezine.daemonnews.org/200104/bsd_family.html
597("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
598
599
600Acknowledgments
601---------------
602
603Josh Gilliam for suggestions, bug fixes, and finding very old
604original BSD announcements from Usenet or tapes.
605
606Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
607
608--
609Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
610URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
611
612$FreeBSD$