bsd-family-tree revision 214628
1251881SpeterThe UNIX system family tree: Research and BSD
2251881Speter---------------------------------------------
3251881Speter
4251881SpeterFirst Edition (V1)
5251881Speter     |
6251881SpeterSecond Edition (V2)
7251881Speter     |
8251881SpeterThird Edition (V3)
9251881Speter     |
10251881SpeterFourth Edition (V4)
11251881Speter     |
12251881SpeterFifth Edition (V5)
13251881Speter     |
14251881SpeterSixth Edition (V6) -----*
15251881Speter       \                |
16251881Speter        \               |
17251881Speter         \              |
18251881SpeterSeventh Edition (V7)    |
19251881Speter            \           |
20251881Speter             \        1BSD
21251881Speter             32V        |
22251881Speter               \      2BSD---------------*
23251881Speter                \    /                   |
24251881Speter                 \  /                    |
25251881Speter                  \/                     |
26251881Speter                 3BSD                    |
27251881Speter                  |                      |
28251881Speter               4.0BSD                2.79BSD
29251881Speter                  |                      |
30251881Speter               4.1BSD --------------> 2.8BSD
31251881Speter                  |                      |
32251881Speter              4.1aBSD -----------\       |
33251881Speter                  |                \     |
34251881Speter              4.1bBSD                \   |
35251881Speter                  |                    \ |
36251881Speter      *------ 4.1cBSD --------------> 2.9BSD
37251881Speter     /            |                      |
38251881SpeterEighth Edition    |                   2.9BSD-Seismo
39251881Speter     |            |                      |
40251881Speter     +----<--- 4.2BSD               2.9.1BSD
41251881Speter     |            |                      |
42251881Speter     +----<--- 4.3BSD -------------> 2.10BSD
43251881Speter     |            |               /      |
44251881SpeterNinth Edition     |              / 2.10.1BSD
45251881Speter     |         4.3BSD Tahoe-----+        |
46251881Speter     |            |              \       |
47251881Speter     |            |                \     |
48251881Speter     v            |                  2.11BSD
49251881SpeterTenth Edition     |                      |
50251881Speter                  |                  2.11BSD rev #430
51251881Speter               4.3BSD NET/1              |
52251881Speter                  |                      v
53262253Speter               4.3BSD Reno
54251881Speter                  |
55251881Speter   *---------- 4.3BSD NET/2 -------------------+-------------*
56251881Speter   |                    |                      |             |
57251881Speter386BSD 0.0              |                      |           BSD/386 ALPHA
58251881Speter   |                    |                      |             |
59251881Speter386BSD 0.1 ------------>+                      |           BSD/386 0.3.[13]
60251881Speter   |     \              |                  4.4BSD Alpha      |
61251881Speter   |     386BSD 1.0     |                      |           BSD/386 0.9.[34]
62251881Speter   |                    |                  4.4BSD            |
63251881Speter   |                    |                    / |             |
64251881Speter   |                    |   4.4BSD-Encumbered  |             |
65251881Speter   |                 NetBSD 0.8                |           BSD/386 1.0
66251881Speter   |                    |                      |             |
67251881SpeterFreeBSD 1.0          NetBSD 0.9                |           BSD/386 1.1
68251881Speter   |                    |           .----- 4.4BSD Lite       |
69251881SpeterFreeBSD 1.1             |          /   /       |     \       |
70251881Speter   |                    |         /   /        |      \      |
71251881SpeterFreeBSD 1.1.5       .---|--------'   /         |       \     |
72251881Speter   |               /    |           /          |        \    |
73251881SpeterFreeBSD 1.1.5.1   /     |          /           |         \   |
74251881Speter   |             /   NetBSD 1.0 <-'            |          \  |
75251881Speter   |            /       |                      |           \ |
76251881SpeterFreeBSD 2.0 <--'        |                      |           BSD/OS 2.0
77251881Speter   |                     \                     |             |
78251881SpeterFreeBSD 2.0.5             \                    |           BSD/OS 2.0.1
79251881Speter   |                 .-----\------------- 4.4BSD Lite2       |
80251881Speter   |                 |      \             |  |   |   |       |
81251881Speter   |                 | .-----|------Rhapsody |   |   |       |
82251881Speter   |                 | |     |        NetBSD 1.3 |   |       |
83251881Speter   |                 | |     |           OpenBSD 2.3 |       |
84251881Speter   |                 | |     |                BSD/OS 3.0     |
85251881SpeterFreeBSD 2.1          | |     |                               |
86251881Speter |   |               | |  NetBSD 1.1 ------.               BSD/OS 2.1
87251881Speter | FreeBSD 2.1.5     | |     |              \                |
88251881Speter |     |             | |  NetBSD 1.2         \             BSD/OS 3.0
89251881Speter | FreeBSD 2.1.6     | |     |  \          OpenBSD 2.0       |
90251881Speter |     |             | |     |   \             |             |
91251881Speter | FreeBSD 2.1.6.1   | |     |    \            |             |
92251881Speter |     |             | |     |     \           |             |
93251881Speter | FreeBSD 2.1.7     | |     |      |          |             |
94251881Speter |     |             | |     |  NetBSD 1.2.1   |             |
95251881Speter | FreeBSD 2.1.7.1   | |     |                 |             |
96251881Speter |                   | |     |                 |             |
97251881Speter |                   | |     |                 |             |
98251881Speter *-FreeBSD 2.2       | |     |                 |             |
99251881Speter |        \          | |     |                 |             |
100251881Speter |     FreeBSD 2.2.1 | |     |                 |             |
101251881Speter |         |         | |     |                 |             |
102251881Speter |     FreeBSD 2.2.2 | |     |             OpenBSD 2.1       |
103251881Speter |         |         | |     |                 |             |
104251881Speter |     FreeBSD 2.2.5 | |     |                 |             |
105251881Speter |         |         | |     |             OpenBSD 2.2       |
106251881Speter |         |         | |  NetBSD 1.3           |             |
107251881Speter |     FreeBSD 2.2.6 | |     |    |            |             |
108251881Speter |         |         | |     | NetBSD 1.3.1    |           BSD/OS 3.1
109251881Speter |         |         | |     |    |        OpenBSD 2.3       |
110251881Speter |         |         | |     | NetBSD 1.3.2    |             |
111251881Speter |     FreeBSD 2.2.7 | |     |    |            |             |
112251881Speter |         |         | |     |    |            |           BSD/OS 4.0
113251881Speter |         v         | |     |    |            |             |
114251881Speter |     FreeBSD 2.2.8 | |     |    |            |             |
115251881Speter |                   | |     |    |        OpenBSD 2.4       |
116251881SpeterFreeBSD 3.0 <--------* |     |    v            |             |
117251881Speter |                     |     | NetBSD 1.3.3    |             |
118251881Speter *---FreeBSD 3.1       |     |                 |             |
119251881Speter |       |             |     |                 |           BSD/OS 4.0.1
120251881Speter |   FreeBSD 3.2----*  |  NetBSD 1.4       OpenBSD 2.5       |
121251881Speter |       |          |  |  |  |    |            |             |
122251881Speter |       |          |  |  |  |    |            |             |
123251881Speter |       |          |  |  |  |    |            |             |
124251881Speter |   FreeBSD 3.3    |  |  |  | NetBSD 1.4.1    |             |
125251881Speter |       |          |  |  |  |    |        OpenBSD 2.6       |
126251881Speter |   FreeBSD 3.4    |  |  |  |    |            |             |
127251881Speter |           |      |  |  |  |    |            |           BSD/OS 4.1
128251881SpeterFreeBSD 4.0  |      |  |  |  | NetBSD 1.4.2    |             |
129251881Speter |           |      |  |  |  |    |            |             |
130251881Speter |           |      |  |  |  |    |            |             |
131251881Speter |   FreeBSD 3.5    |  |  |  |    |        OpenBSD 2.7       |
132251881Speter |           |      |  |  |  |    |            |             |
133251881Speter |   FreeBSD 3.5.1  |  |  |  |    |            |             |
134251881Speter |                  |  |  |  |    |            |             |
135251881Speter *---FreeBSD 4.1    |  |  |  |    |            |             |
136251881Speter |      |           |  | (?) |    |            |             |
137251881Speter |   FreeBSD 4.1.1  |  |  /  |    |            |             |
138251881Speter |      |           |  | /   |    |            |             |
139251881Speter |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
140251881Speter |      |         Mac OS X   |             OpenBSD 2.8     BSD/OS 4.2
141251881Speter |      |             |      |                 |             |
142251881Speter |      |             |      |                 |             |
143251881Speter |      |           10.0  NetBSD 1.5           |             |
144251881Speter |   FreeBSD 4.3      |      |    |            |             |
145251881Speter |      |             |      |    |        OpenBSD 2.9       |
146251881Speter |      |             |      | NetBSD 1.5.1    |             |
147251881Speter |      |             |      |    |            |             |
148251881Speter |   FreeBSD 4.4-.    |      | NetBSD 1.5.2    |             |
149251881Speter |      |        | Mac OS X  |    |            |             |
150251881Speter |      |        |   10.1    |    |        OpenBSD 3.0       |
151251881Speter |   FreeBSD 4.5 |    |      |    |            |             |
152251881Speter |      |         \   |      |    |            |           BSD/OS 4.3
153251881Speter |   FreeBSD 4.6   \  |      |    |        OpenBSD 3.1       |
154251881Speter |      |           \ |      | NetBSD 1.5.3    |             |
155251881Speter |   FreeBSD 4.6.2 Mac OS X  |                 |             |
156251881Speter |      |            10.2    |                 |             |
157251881Speter |   FreeBSD 4.7      |      |                 |             |
158251881Speter |      |             |   NetBSD 1.6       OpenBSD 3.2       |
159251881Speter |   FreeBSD 4.8      |      |    |            |             |
160251881Speter |      |             |      | NetBSD 1.6.1    |             |
161251881Speter |      |--------.    |      |    |        OpenBSD 3.3     BSD/OS 5.0
162251881Speter |      |         \   |      |    |            |             |
163251881Speter |   FreeBSD 4.9   |  |      |    |        OpenBSD 3.4     BSD/OS 5.1 ISE
164251881Speter |      |          |  |      |    |            |
165251881Speter |      |          |  |      | NetBSD 1.6.2    |
166251881Speter |      |          |  |      |    |            |
167251881Speter |      |          |  |      |    |        OpenBSD 3.5
168251881Speter |      |          |  |      |    v            |
169251881Speter |   FreeBSD 4.10  |  |      |                 |
170251881Speter |      |          |  |      |                 |
171251881Speter |   FreeBSD 4.11  |  |      |                 |
172251881Speter |                 |  |      |                 |
173251881Speter |                  `-|------|-----------------|---------------------.
174251881Speter |                    |      |                 |                      \
175251881SpeterFreeBSD 5.0           |      |                 |                       |
176251881Speter |                    |      |                 |                       |
177251881SpeterFreeBSD 5.1           |      |                 |                 DragonFly 1.0
178251881Speter |          \         |      |                 |                       |
179251881Speter |           ----- Mac OS X  |                 |                       |
180251881Speter |                   10.3    |                 |                       |
181251881SpeterFreeBSD 5.2           |      |                 |                       |
182251881Speter |      |             |      |                 |                       |
183251881Speter |   FreeBSD 5.2.1    |      |                 |                       |
184251881Speter |                    |      |                 |                       |
185251881Speter *-------FreeBSD 5.3  |      |                 |                       |
186251881Speter |           |        |      |             OpenBSD 3.6                 |
187251881Speter |           |        |   NetBSD 2.0           |                       |
188251881Speter |           |        |      | |  |            |                DragonFly 1.2.0
189251881Speter |           |     Mac OS X  | | NetBSD 2.0.2  |                       |
190251881Speter |           |       10.4    | |  |            |                       |
191251881Speter |       FreeBSD 5.4  |      | |  |            |                       |
192251881Speter |           |        |      | |  |        OpenBSD 3.7                 |
193251881Speter |           |        |      | | NetBSD 2.0.3  |                       |
194251881Speter |           |        |      | |  |            |                       |
195251881Speter *--FreeBSD  |        |      | |  v        OpenBSD 3.8                 |
196251881Speter |    6.0    |        |      | |               |                       |
197251881Speter |     |     |        |      |  \              |                       |
198251881Speter |     |     |        |      | NetBSD 2.1      |                       |
199251881Speter |     |     |        |      |                 |                       |
200251881Speter |     |     |        |   NetBSD 3.0           |                       |
201251881Speter |     |     |        |      | |  |            |                DragonFly 1.4.0
202251881Speter |     |     |        |      | |  |        OpenBSD 3.9                 |
203251881Speter |  FreeBSD  |        |      | |  |            |                       |
204251881Speter |    6.1    |        |      | |  |            |                       |
205251881Speter |     |  FreeBSD 5.5 |      | |  |            |                       |
206251881Speter |     |              |      | | NetBSD 3.0.1  |                DragonFly 1.6.0
207251881Speter |     |              |      | |  |            |                       |
208251881Speter |     |              |      | |  |        OpenBSD 4.0                 |
209251881Speter |     |              |      | | NetBSD 3.0.2  |                       |
210251881Speter |     |              |      | NetBSD 3.1      |                       |
211251881Speter | FreeBSD 6.2        |      |                 |                       |
212251881Speter |     |              |      |                 |                DragonFly 1.8.0
213251881Speter |     |              |      |             OpenBSD 4.1                 |
214251881Speter |     |              |      |                 |                DragonFly 1.10.0
215251881Speter |     |           Mac OS X  |                 |                       |
216251881Speter |     |             10.5    |                 |                       |
217251881Speter |     |              |      |             OpenBSD 4.2                 |
218251881Speter |     |              |   NetBSD 4.0           |                       |
219251881Speter | FreeBSD 6.3        |      |                 |                       |
220251881Speter |            \       |      |                 |                       |
221251881Speter *--FreeBSD    |      |      |                 |                DragonFly 1.12.0
222251881Speter |    7.0      |      |      |                 |                       |
223251881Speter |     |       |      |      |             OpenBSD 4.3                 |
224251881Speter |     |       |      |      |                 |                DragonFly 2.0.0
225251881Speter |     |    FreeBSD   |      |             OpenBSD 4.4                 |
226251881Speter |     |      6.4     |      |                 |                       |
227251881Speter |     |              |      |                 |                       |
228251881Speter |  FreeBSD 7.1       |      |                 |                       |
229251881Speter |     |              |      |                 |                DragonFly 2.2.0
230251881Speter |  FreeBSD 7.2       |   NetBSD 5.0       OpenBSD 4.5                 |
231251881Speter |             \      |      |                 |                       |
232251881Speter |              |     |      |                 |                DragonFly 2.4.0
233251881Speter |              |     |      |             OpenBSD 4.6                 |
234251881Speter |              |     |      |                 |                       |
235251881Speter *--FreeBSD     |     |      |                 |                       |
236299742Sdim |    8.0       |     |      |                 |                       |
237251881Speter |     |    FreeBSD   |      |                 |                       |
238251881Speter |     |       7.3    |      |                 |                DragonFly 2.6.0
239251881Speter |     |              |      |             OpenBSD 4.7                 |
240251881Speter |  FreeBSD           |      |                 |                       |
241251881Speter |    8.1             |      |                 |                       |
242251881Speter |     |              |      |                 |                DragonFly 2.8.0
243251881Speter |     |              |      |             OpenBSD 4.8                 |
244251881Speter |     V              |      |                 |                       |
245251881Speter |                    |      |                 |                       |
246251881SpeterFreeBSD 9 -current    |  NetBSD -current  OpenBSD -current             |
247251881Speter |                    |      |                 |                       |
248251881Speter v                    v      v                 v                       v
249251881Speter
250251881SpeterTime
251251881Speter----------------
252251881Speter
253251881SpeterTime tolerance +/- 6 months, depending on which book/article you read; if it
254251881Speterwas the announcement in Usenet or if it was available as tape.
255251881Speter
256251881Speter[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
257251881Speter	and John Quarterman. The Design and Implementation of
258251881Speter	the 4.4BSD Operating System.
259251881Speter[APL] Apple website [http://www.apple.com/macosx/]
260251881Speter[BSDI] Berkeley Software Design, Inc.
261251881Speter[DFB] DragonFlyBSD Project, The.
262251881Speter[DOC] README, COPYRIGHT on tape.
263251881Speter[FBD] FreeBSD Project, The.
264251881Speter[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
265251881Speter	Volume 11, Info 4, April, 1987.
266251881Speter[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
267251881Speter	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
268251881Speter[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
269251881Speter	Changes in the Kernel in 2.9BSD. Second Berkeley Software
270251881Speter	Distribution UNIX Version 2.9, July, 1983.
271251881Speter[NBD] NetBSD Project, The.
272251881Speter[OBD] OpenBSD Project, The.
273251881Speter[QCU] Salus, Peter H. A quarter century of UNIX.
274251881Speter[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
275251881Speter[TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
276251881Speter[USE] Usenet announcement.
277251881Speter[WRS] Wind River Systems, Inc.
278251881Speter[dmr] Dennis Ritchie, via E-Mail
279251881Speter
280251881SpeterMultics                 1965
281251881SpeterUNIX                    Summer 1969
282251881Speter				DEC PDP-7
283251881SpeterFirst   Edition         1971-11-03 [QCU]
284251881Speter				DEC PDP-11/20, Assembler
285251881SpeterSecond  Edition         1972-06-12 [QCU]
286251881Speter				10 UNIX installations
287251881SpeterThird   Edition         1973-02-xx [QCU]
288251881Speter				Pipes, 16 installations
289251881SpeterFourth  Edition         1973-11-xx [QCU]
290251881Speter				rewriting in C effected,
291251881Speter                                above 30 installations
292251881SpeterFifth   Edition         1974-06-xx [QCU]
293251881Speter				above 50 installations
294251881SpeterSixth   Edition         1975-05-xx [QCU]
295251881Speter				port to DEC Vax
296251881SpeterSeventh Edition         1979-01-xx [QCU]
297251881Speter				first portable UNIX
298251881SpeterEighth  Edition         1985-02-xx [QCU]
299251881Speter				VAX 11/750, VAX 11/780 [dmr]
300251881Speter				descended from 4.1c BSD [dmr]
301251881Speter				descended from 4.1 BSD [44B]
302251881Speter			scooping-out and replacement of the character-device
303251881Speter			and networking part by the streams mechanism
304251881Speter
305251881SpeterNinth   Edition         1986-09-xx [QCU]
306251881SpeterTenth   Edition         1989-10-xx [QCU]
307251881Speter
308251881Speter1BSD                    late 1977
309251881Speter			1978-03-09 [QCU]
310251881Speter				PDP-11, Pascal, ex(1)
311251881Speter				30 free copies of 1BSD sent out
312251881Speter				35 tapes sold for 50 USD [QCU]
313251881Speter2BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
314251881Speter				75 2BSD tapes shipped
315251881Speter2.79BSD			1980-04-xx [TUHS]
316251881Speter2.8BSD			1981-07-xx [KSJ]
317251881Speter
318251881Speter2.8.1BSD		1982-01-xx [QCU]
319251881Speter				set of performance improvements
320251881Speter2.9BSD			1983-07-xx [KSJ]
321251881Speter2.9.1BSD                1983-11-xx [TUHS]
322251881Speter2.9BSD-Seismo		1985-08-xx [SMS]
323251881Speter2.10BSD			1987-04-xx [KKK]
324251881Speter2.10.1BSD		1989-01-xx [SMS]
325251881Speter2.11BSD			1992-02-xx [SMS]
326251881Speter2.11BSD rev #430	1999-12-13 [SMS]
327251881Speter
328251881Speter32V			1978-1[01]-xx [QCU]
329251881Speter3BSD                    late 1979 [QCU] March 1980 [TUHS]
330251881Speter				virtual memory, page replacement,
331251881Speter                        	demand paging
332251881Speter4.0BSD                  1980-10-xx
333251881Speter4.1BSD                  1981-07-08 [DOC]
334251881Speter4.1aBSD                 1982-04-xx
335251881Speter				alpha release, 100 sites, networking [44B]
336251881Speter4.1bBSD				internal release, fast filesystem [44B]
337251881Speter4.1cBSD                 late 1982
338251881Speter				beta release, IPC [44B]
339251881Speter4.2BSD                  1983-09-xx [QCU]
340251881Speter                        1983-08-03 [DOC]
341251881Speter4.3BSD                  1986-06-xx [QCU]
342251881Speter			1986-04-05 [KB], [DOC]
343251881Speter4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
344251881Speter4.3BSD NET/1            1988-11-xx [QCU]
345251881Speter                        1989-01-01 [DOC]
346251881Speter4.3BSD Reno             1990-06-29 [QCU], [DOC]
347251881Speter4.3BSD NET/2            1991-06-28 [QCU], [DOC]
348251881Speter
349251881SpeterBSD/386 ALPHA		1991-12-xx [BSDI]
350251881Speter				first code released to people outside BSDI
351251881Speter386BSD 0.0              1992-02-xx [DOC]
352251881SpeterBSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
353251881SpeterBSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
354251881Speter386BSD 0.1              1992-07-28 [DOC]
355251881Speter4.4BSD Alpha            1992-07-07
356251881SpeterBSD/386 0.9.3		1992-10-xx [BSDI]
357251881Speter				first external gamma; G customers
358251881SpeterBSD/386 0.9.4		1992-12-xx [BSDI]
359251881Speter				would have been 1.0 except for request
360251881Speter				for preliminary injunction
361251881SpeterBSD/386 1.0 		1993-03-xx [BSDI]
362251881Speter				injunction denied; first official release
363251881SpeterNetBSD 0.8              1993-04-20 [NBD]
364251881Speter4.4BSD                  1993-06-01 [USE]
365251881SpeterNetBSD 0.9              1993-08-23 [NBD]
366251881SpeterFreeBSD 1.0		1993-11-01 [FBD]
367251881SpeterFreeBSD 1.0.2		1993-11-14 [FBD]
368251881Speter				supersedes 1.0 13 days after release.
369251881SpeterBSD/386 1.1		1994-02-xx [BSDI]
370251881Speter4.4BSD Lite             1994-03-01 [USE]
371299742SdimFreeBSD 1.1		1994-05-07 [FBD]
372251881SpeterFreeBSD 1.1.5		1994-06-30 [FBD]
373251881SpeterFreeBSD 1.1.5.1		1994-07-05 [FBD]
374299742Sdim				supersedes 1.1.5 5 days after release.
375251881SpeterNetBSD 1.0              1994-10-26 [NBD]
376251881Speter386BSD 1.0              1994-11-12 [USE]
377251881SpeterFreeBSD 2.0		1994-11-23 [FBD]
378251881SpeterBSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
379251881SpeterFreeBSD 2.0.5		1995-06-10 [FBD]
380299742SdimBSD/OS 2.0.1		1995-06-xx [BSDI]
381251881Speter4.4BSD Lite Release 2	1995-06-xx [44B]
382251881Speter				the true final distribution from the CSRG
383251881SpeterFreeBSD 2.1.0		1995-11-19 [FBD]
384251881SpeterNetBSD 1.1              1995-11-26 [NBD]
385251881SpeterBSD/OS 2.1		1996-01-xx [BSDI]
386251881SpeterFreeBSD 2.1.5		1996-07-14 [FBD]
387251881SpeterNetBSD 1.2              1996-10-04 [NBD]
388251881SpeterOpenBSD 2.0             1996-10-18 [OBD]
389251881SpeterFreeBSD 2.1.6		1996-11-16 [FBD]
390251881SpeterFreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
391251881SpeterRhapsody		1997-xx-xx
392251881SpeterFreeBSD 2.1.7		1997-02-20 [FBD]
393251881SpeterBSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
394251881SpeterFreeBSD 2.2.0		1997-03-16 [FBD]
395251881SpeterFreeBSD 2.2.1		1997-03-25 [FBD]
396251881SpeterFreeBSD 2.2.2		1997-05-16 [FBD]
397251881SpeterNetBSD 1.2.1            1997-05-20 [NBD] (patch release)
398251881SpeterOpenBSD 2.1             1997-06-01 [OBD]
399251881SpeterFreeBSD 2.2.5		1997-10-22 [FBD]
400251881SpeterOpenBSD 2.2             1997-12-01 [OBD]
401251881SpeterNetBSD 1.3              1998-01-04 [NBD]
402251881SpeterFreeBSD 2.2.6		1998-03-25 [FBD]
403251881SpeterNetBSD 1.3.1            1998-03-09 [NBD] (patch release)
404251881SpeterBSD/OS 3.1		1998-03-xx [BSDI]
405251881SpeterOpenBSD 2.3             1998-05-19 [OBD]
406251881SpeterNetBSD 1.3.2            1998-05-29 [NBD] (patch release)
407251881SpeterFreeBSD 2.2.7		1998-07-22 [FBD]
408251881SpeterBSD/OS 4.0		1998-08-xx [BSDI]
409251881Speter				2-lock MP support, ELF executables
410251881SpeterFreeBSD 3.0		1998-10-16 [FBD]
411251881Speter				FreeBSD-3.0 is a snapshot from -current,
412251881Speter				while 3.1 and 3.2 are from 3.x-stable which
413251881Speter				was branched quite some time after 3.0-release
414251881SpeterFreeBSD 2.2.8           1998-11-29 [FBD]
415251881SpeterOpenBSD 2.4             1998-12-01 [OBD]
416251881SpeterNetBSD 1.3.3            1998-12-23 [NBD] (patch release)
417251881SpeterFreeBSD 3.1		1999-02-15 [FBD]
418251881SpeterBSD/OS 4.0.1		1999-03-xx [BSDI]
419251881SpeterNetBSD 1.4              1999-05-12 [NBD]
420251881SpeterFreeBSD 3.2             1999-05-17 [FBD]
421251881SpeterOpenBSD 2.5             1999-05-19 [OBD]
422251881SpeterNetBSD 1.4.1            1999-08-26 [NBD] (patch release)
423251881SpeterFreeBSD 3.3             1999-09-17 [FBD]
424251881SpeterOpenBSD 2.6             1999-12-01 [OBD]
425251881SpeterFreeBSD 3.4             1999-12-20 [FBD]
426251881SpeterBSD/OS 4.1		1999-12-xx [BSDI]
427251881SpeterFreeBSD 4.0             2000-03-13 [FBD]
428251881SpeterNetBSD 1.4.2            2000-03-19 [NBD] (patch release)
429251881SpeterOpenBSD 2.7             2000-06-15 [OBD]
430251881SpeterFreeBSD 3.5		2000-06-24 [FBD]
431251881SpeterFreeBSD 4.1		2000-07-27 [FBD]
432251881SpeterFreeBSD 3.5.1		2000-07-28 [FBD]
433251881SpeterFreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
434299742SdimFreeBSD 4.2  		2000-11-21 [FBD]
435251881SpeterNetBSD 1.4.3		2000-11-25 [NBD] (patch release)
436251881SpeterBSD/OS 4.2		2000-11-29 [BSDI]
437251881SpeterOpenBSD 2.8		2000-12-01 [OBD]
438299742SdimNetBSD 1.5              2000-12-06 [NBD]
439299742SdimMac OS X 10.0           2001-03-24 [APL]
440299742SdimFreeBSD 4.3  		2001-04-20 [FBD]
441299742SdimOpenBSD 2.9  		2001-06-01 [OBD]
442299742SdimNetBSD 1.5.1		2001-07-11 [NBD] (patch release)
443299742SdimNetBSD 1.5.2		2001-09-13 [NBD] (patch release)
444299742SdimFreeBSD 4.4  		2001-09-18 [FBD]
445299742SdimMac OS X 10.1		2001-09-29 [APL]
446299742SdimOpenBSD 3.0		2001-12-01 [OBD]
447299742SdimFreeBSD 4.5  		2002-01-29 [FBD]
448299742SdimBSD/OS 4.3		2002-03-14 [WRS]
449299742SdimOpenBSD 3.1		2002-05-19 [OBD]
450251881SpeterFreeBSD 4.6  		2002-06-15 [FBD]
451251881SpeterNetBSD 1.5.3		2002-07-22 [NBD] (patch release)
452251881SpeterFreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
453251881SpeterMac OS X 10.2		2002-08-23 [APL]
454251881SpeterNetBSD 1.6		2002-09-14 [NBD]
455251881SpeterFreeBSD 4.7		2002-10-08 [FBD]
456251881SpeterOpenBSD 3.2		2002-11-01 [OBD]
457251881SpeterFreeBSD 5.0		2003-01-17 [FBD]
458251881Speter				FreeBSD 5.0 is a separate branch off of
459251881Speter				-current, similar to 3.0.
460251881SpeterFreeBSD 4.8		2003-04-03 [FBD]
461251881SpeterNetBSD 1.6.1		2003-04-21 [NBD] (patch release)
462299742SdimOpenBSD 3.3		2003-05-01 [OBD]
463251881SpeterBSD/OS 5.0		2003-05-?? [WRS]
464251881SpeterFreeBSD 5.1		2003-06-09 [FBD]
465251881SpeterMac OS X 10.3		2003-10-24 [APL]
466251881SpeterFreeBSD 4.9		2003-10-28 [FBD]
467251881SpeterBSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
468251881SpeterOpenBSD 3.4		2003-11-01 [OBD]
469299742SdimFreeBSD 5.2		2004-01-12 [FBD]
470299742SdimFreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
471299742SdimNetBSD 1.6.2		2004-03-01 [NBD] (patch release)
472299742SdimOpenBSD 3.5		2004-04-01 [OBD]
473251881SpeterFreeBSD 4.10		2004-05-27 [FBD]
474251881SpeterDragonFly 1.0		2004-07-12 [DFB]
475251881SpeterOpenBSD 3.6		2004-10-29 [OBD]
476251881SpeterFreeBSD 5.3		2004-11-06 [FBD]
477251881SpeterNetBSD 2.0		2004-12-09 [NBD]
478251881SpeterFreeBSD 4.11		2005-01-25 [FBD]
479251881SpeterDragonFly 1.2.0		2005-04-08 [DFB]
480251881SpeterNetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
481251881SpeterMac OS X 10.4		2005-04-29 [APL]
482251881SpeterFreeBSD 5.4		2005-05-09 [FBD]
483251881SpeterOpenBSD 3.7		2005-05-19 [OBD]
484251881SpeterNetBSD 2.0.3		2005-10-31 [NBD] (security/critical release)
485251881SpeterOpenBSD 3.8		2005-11-01 [OBD]
486251881SpeterFreeBSD 6.0		2005-11-01 [FBD]
487251881SpeterNetBSD 2.1		2005-11-02 [NBD]
488251881SpeterNetBSD 3.0		2005-12-23 [NBD]
489251881SpeterDragonFly 1.4.0		2006-01-08 [DFB]
490251881SpeterOpenBSD 3.9		2006-05-01 [OBD]
491251881SpeterFreeBSD 6.1		2006-05-08 [FBD]
492251881SpeterFreeBSD 5.5		2006-05-25 [FBD]
493251881SpeterNetBSD 3.0.1		2006-07-24 [NBD] (security/critical release)
494251881SpeterDragonFly 1.6.0		2006-07-24 [DFB]
495251881SpeterOpenBSD 4.0		2006-11-01 [OBD]
496251881SpeterNetBSD 3.0.2		2006-11-04 [NBD] (security/critical release)
497251881SpeterNetBSD 3.1		2006-11-04 [NBD]
498251881SpeterFreeBSD 6.2		2007-01-15 [FBD]
499251881SpeterDragonFly 1.8.0		2007-01-30 [DFB]
500251881SpeterOpenBSD 4.1		2007-05-01 [OBD]
501251881SpeterDragonFly 1.10.0	2007-08-06 [DFB]
502251881SpeterMac OS X 10.5		2007-10-26 [APL]
503251881SpeterOpenBSD 4.2		2007-11-01 [OBD]
504251881SpeterNetBSD 4.0		2007-12-19 [NBD]
505251881SpeterFreeBSD 6.3		2008-01-18 [FBD]
506251881SpeterDragonFly 1.12.0	2008-02-26 [DFB]
507251881SpeterFreeBSD 7.0		2008-02-27 [FBD]
508251881SpeterOpenBSD 4.3		2008-05-01 [OBD]
509251881SpeterDragonFly 2.0.0		2008-07-21 [DFB]
510251881SpeterOpenBSD 4.4		2008-11-01 [OBD]
511251881SpeterFreeBSD 6.4		2008-11-28 [FBD]
512251881SpeterFreeBSD 7.1		2009-01-04 [FBD]
513251881SpeterDragonFly 2.2.0		2009-02-17 [DFB]
514251881SpeterNetBSD 5.0		2009-04-29 [NBD]
515251881SpeterOpenBSD 4.5		2009-05-01 [OBD]
516251881SpeterFreeBSD 7.2		2009-05-04 [FBD]
517251881SpeterDragonFly 2.4.0		2009-09-16 [DFB]
518251881SpeterOpenBSD 4.6		2009-10-18 [OBD]
519251881SpeterFreeBSD 8.0		2009-11-26 [FBD]
520251881SpeterFreeBSD 7.3		2010-03-23 [FBD]
521251881SpeterDragonFly 2.6.0		2010-03-28 [DFB]
522251881SpeterOpenBSD 4.7		2010-05-19 [OBD]
523251881SpeterFreeBSD 8.1		2010-07-24 [FBD]
524251881SpeterDragonFly 2.8.0		2010-10-30 [DFB]
525251881SpeterOpenBSD 4.8		2010-11-01 [OBD]
526251881Speter
527251881SpeterBibliography
528251881Speter------------------------
529251881Speter
530251881SpeterLeffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
531251881SpeterQuarterman. The Design and Implementation of the 4.3BSD UNIX Operating
532251881SpeterSystem. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
533251881Speter
534251881SpeterSalus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
535251881SpeterCompany, Inc., 1994. ISBN 0-201-54777-5
536251881Speter
537251881SpeterMcKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
538251881SpeterQuarterman. The Design and Implementation of the 4.4BSD Operating
539251881SpeterSystem. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
540251881Speter
541251881SpeterMcKusick, Marshall Kirk, George Neville-Neil. The Design and
542251881SpeterImplementation of the FreeBSD Operating System.
543299742SdimAddison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
544299742Sdim
545299742SdimDoug McIlroy. Research Unix Reader.
546299742Sdim
547299742SdimMichael G. Brown. The Role of BSD in the Development of Unix.
548251881SpeterPresented to the Tasmanian Unix Special Interest Group of the
549251881SpeterAustralian Computer Society, Hobart, August 1993.
550251881Speter
551251881SpeterPeter H. Salus. Unix at 25. Byte Magazine, October 1994.
552251881SpeterURL: http://www.byte.com/art/9410/sec8/art3.htm
553251881Speter
554251881SpeterAndreas Klemm, Lars K�ller. If you're going to San Francisco ...
555251881SpeterDie freien BSD-Varianten von Unix. c't April 1997, page 368ff.
556251881Speter
557251881SpeterBSD Release Announcements collection.
558251881SpeterURL: http://www.FreeBSD.org/releases/
559251881Speter
560251881SpeterBSD Hypertext Man Pages
561251881SpeterURL: http://www.FreeBSD.org/cgi/man.cgi
562251881Speter
563251881SpeterUNIX history graphing project
564251881SpeterURL: http://minnie.tuhs.org/Unix_History/index.html
565251881Speter
566251881SpeterUNIX history
567251881SpeterURL: http://www.levenez.com/unix/
568251881Speter
569251881SpeterJames Howard: The BSD Family Tree
570251881SpeterURL: http://ezine.daemonnews.org/200104/bsd_family.html
571251881Speter("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
572251881Speter
573251881Speter
574251881SpeterAcknowledgments
575251881Speter---------------
576251881Speter
577299742SdimJosh Gilliam for suggestions, bug fixes, and finding very old
578299742Sdimoriginal BSD announcements from Usenet or tapes.
579299742Sdim
580299742SdimSteven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
581299742Sdim
582299742Sdim--
583299742SdimCopyright (c) 1997-2007 Wolfram Schneider <wosch@FreeBSD.ORG>
584299742SdimURL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
585299742Sdim
586299742Sdim$FreeBSD: head/share/misc/bsd-family-tree 214628 2010-11-01 17:27:09Z uqs $
587299742Sdim