bsd-family-tree revision 151926
152400SbillfThe UNIX system family tree: Research and BSD
252400Sbillf---------------------------------------------
352400Sbillf
452400SbillfFirst Edition (V1)
552400Sbillf     |
652400SbillfSecond Edition (V2)
752400Sbillf     |
890564SdougbThird Edition (V3)
973651Sdougb     |
1052400SbillfFourth Edition (V4)
1152495Sbillf     |
1252400SbillfFifth Edition (V5)
1368507Sdougb     |
1452400SbillfSixth Edition (V6) -----*
1552400Sbillf       \                |
1652533Sbillf        \               |
1752400Sbillf         \              |
1891193SdougbSeventh Edition (V7)    |
1967949Sdougb            \           |
2052400Sbillf             \        1BSD
2152400Sbillf             32V        |
2252400Sbillf               \      2BSD---------------*
2352400Sbillf                \    /                   |
2452400Sbillf                 \  /                    |
2552400Sbillf                  \/                     |
2652400Sbillf                 3BSD                    |
2767949Sdougb                  |                      |
2891193Sdougb               4.0BSD               2.7.9BSD
2991193Sdougb                  |                      |
3052400Sbillf               4.1BSD --------------> 2.8BSD
3152400Sbillf                  |                      |
3252400Sbillf              4.1aBSD -----------\       |
3352400Sbillf                  |                \     |
3452400Sbillf              4.1bBSD                \   |
3567949Sdougb                  |                    \ |
3652400Sbillf      *------ 4.1cBSD --------------> 2.9BSD
3752400Sbillf     /            |                      |
3852400SbillfEighth Edition    |                   2.9BSD-Seismo
3952400Sbillf     |            |                      |
4052400Sbillf     +----<--- 4.2BSD               2.9.1BSD
4152400Sbillf     |            |                      |
4252400Sbillf     +----<--- 4.3BSD -------------> 2.10BSD
4367859Sdougb     |            |               /      |
4467949SdougbNinth Edition     |              / 2.10.1BSD
4552400Sbillf     |         4.3BSD Tahoe-----+        |
4652400Sbillf     |            |              \       |
4758910Salfred     |            |                \     |
4858910Salfred     v            |                  2.11BSD
4958910SalfredTenth Edition     |                      |
5067850Sdougb                  |                  2.11BSD rev #430
5167850Sdougb               4.3BSD NET/1              |
5267850Sdougb                  |                      v
5367850Sdougb               4.3BSD Reno
5467850Sdougb                  |
5567850Sdougb   *---------- 4.3BSD NET/2 -------------------+-------------*
5667850Sdougb   |                    |                      |             |
5767850Sdougb386BSD 0.0              |                      |           BSD/386 ALPHA
5867850Sdougb   |                    |                      |             |
5967850Sdougb386BSD 0.1 ------------>+                      |           BSD/386 0.3.[13]
6067850Sdougb   |     \              |                  4.4BSD Alpha      |
6167850Sdougb   |     386BSD 1.0     |                      |           BSD/386 0.9.[34]
6267949Sdougb   |                    |                  4.4BSD            |
6367850Sdougb   |                    |                    / |             |
6467850Sdougb   |                    |   4.4BSD-Encumbered  |             |
6567850Sdougb   |                 NetBSD 0.8                |           BSD/386 1.0
6667850Sdougb   |                    |                      |             |
6767850SdougbFreeBSD 1.0          NetBSD 0.9                |           BSD/386 1.1
6867850Sdougb   |                    |           .----- 4.4BSD Lite       |
6967850SdougbFreeBSD 1.1             |          /   /       |     \       |
7067850Sdougb   |                    |         /   /        |      \      |
7167859SdougbFreeBSD 1.1.5       .---|--------'   /         |       \     |
7267859Sdougb   |               /    |           /          |        \    |
7358910SalfredFreeBSD 1.1.5.1   /     |          /           |         \   |
7467850Sdougb   |             /   NetBSD 1.0 <-'            |          \  |
7567850Sdougb   |            /       |                      |           \ |
7667850SdougbFreeBSD 2.0 <--'        |                      |           BSD/OS 2.0
7767850Sdougb   |                     \                     |             |
7867850SdougbFreeBSD 2.0.5             \                    |           BSD/OS 2.0.1
7967850Sdougb   |                 .-----\------------- 4.4BSD Lite2       |
8067859Sdougb   |                 |      \             |  |   |   |       |
8167850Sdougb   |                 | .-----|------Rhapsody |   |   |       |
8267859Sdougb   |                 | |     |        NetBSD 1.3 |   |       |
8367850Sdougb   |                 | |     |           OpenBSD 2.3 |       |
8467850Sdougb   |                 | |     |                BSD/OS 3.0     |
8567850SdougbFreeBSD 2.1          | |     |                               |
8667850Sdougb |   |               | |  NetBSD 1.1 ------.               BSD/OS 2.1
8767859Sdougb | FreeBSD 2.1.5     | |     |              \                |
8867850Sdougb |     |             | |  NetBSD 1.2         \             BSD/OS 3.0
8967850Sdougb | FreeBSD 2.1.6     | |     |  \          OpenBSD 2.0       |
9067850Sdougb |     |             | |     |   \             |             |
9167850Sdougb | FreeBSD 2.1.6.1   | |     |    \            |             |
9267850Sdougb |     |             | |     |     \           |             |
9367850Sdougb | FreeBSD 2.1.7     | |     |      |          |             |
9467850Sdougb |     |             | |     |  NetBSD 1.2.1   |             |
9567850Sdougb | FreeBSD 2.1.7.1   | |     |                 |             |
9667850Sdougb |                   | |     |                 |             |
9767850Sdougb |                   | |     |                 |             |
9867850Sdougb *-FreeBSD 2.2       | |     |                 |             |
9967850Sdougb |        \          | |     |                 |             |
10067850Sdougb |     FreeBSD 2.2.1 | |     |                 |             |
10167850Sdougb |         |         | |     |                 |             |
10258910Salfred |     FreeBSD 2.2.2 | |     |             OpenBSD 2.1       |
10358910Salfred |         |         | |     |                 |             |
10458910Salfred |     FreeBSD 2.2.5 | |     |                 |             |
10558910Salfred |         |         | |     |             OpenBSD 2.2       |
10658910Salfred |         |         | |  NetBSD 1.3           |             |
10758910Salfred |     FreeBSD 2.2.6 | |     |    |            |             |
10867850Sdougb |         |         | |     | NetBSD 1.3.1    |           BSD/OS 3.1
10958910Salfred |         |         | |     |    |        OpenBSD 2.3       |
11077323Sdougb |         |         | |     | NetBSD 1.3.2    |             |
11177323Sdougb |     FreeBSD 2.2.7 | |     |    |            |             |
11267949Sdougb |         |         | |     |    |            |           BSD/OS 4.0
11367850Sdougb |         v         | |     |    |            |             |
11490564Sdougb |     FreeBSD 2.2.8 | |     |    |            |             |
11590564Sdougb |                   | |     |    |        OpenBSD 2.4       |
11690564SdougbFreeBSD 3.0 <--------* |     |    v            |             |
11767850Sdougb |                     |     | NetBSD 1.3.3    |             |
11867949Sdougb *---FreeBSD 3.1       |     |                 |             |
11967850Sdougb |       |             |     |                 |           BSD/OS 4.0.1
12067850Sdougb |   FreeBSD 3.2----*  |  NetBSD 1.4       OpenBSD 2.5       |
12167949Sdougb |       |          |  |  |  |    |            |             |
12267850Sdougb |       |          |  |  |  |    |            |             |
12367850Sdougb |       |          |  |  |  |    |            |             |
12467850Sdougb |   FreeBSD 3.3    |  |  |  | NetBSD 1.4.1    |             |
12567850Sdougb |       |          |  |  |  |    |        OpenBSD 2.6       |
12667949Sdougb |   FreeBSD 3.4    |  |  |  |    |            |             |
12767850Sdougb |           |      |  |  |  |    |            |           BSD/OS 4.1
12891193SdougbFreeBSD 4.0  |      |  |  |  | NetBSD 1.4.2    |             |
12967949Sdougb |           |      |  |  |  |    |            |             |
13067949Sdougb |           |      |  |  |  |    |            |             |
13167949Sdougb |   FreeBSD 3.5    |  |  |  |    |        OpenBSD 2.7       |
13267949Sdougb |           |      |  |  |  |    |            |             |
13367949Sdougb |   FreeBSD 3.5.1  |  |  |  |    |            |             |
13468507Sdougb |                  |  |  |  |    |            |             |
13567949Sdougb *---FreeBSD 4.1    |  |  |  |    |            |             |
13667949Sdougb |      |           |  | (?) |    |            |             |
13767949Sdougb |   FreeBSD 4.1.1  |  |  /  |    |            |             |
13867949Sdougb |      |           |  | /   |    |            |             |
13967949Sdougb |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
14067949Sdougb |      |         Mac OS X   |             OpenBSD 2.8     BSD/OS 4.2
14167949Sdougb |      |             |      |                 |             |
14267949Sdougb |      |             |      |                 |             |
14367949Sdougb |      |           10.0  NetBSD 1.5           |             |
14467949Sdougb |   FreeBSD 4.3      |      |    |            |             |
14567949Sdougb |      |             |      |    |        OpenBSD 2.9       |
14667949Sdougb |      |             |      | NetBSD 1.5.1    |             |
14767850Sdougb |      |             |      |    |            |             |
14867859Sdougb |   FreeBSD 4.4-.    |      | NetBSD 1.5.2    |             |
14967850Sdougb |      |        | Mac OS X  |    |            |             |
15067850Sdougb |      |        |   10.1    |    |        OpenBSD 3.0       |
15167850Sdougb |   FreeBSD 4.5 |    |      |    |            |             |
15267850Sdougb |      |         \   |      |    |            |           BSD/OS 4.3
15377326Sdougb |   FreeBSD 4.6   \  |      |    |        OpenBSD 3.1       |
15477326Sdougb |      |           \ |      | NetBSD 1.5.3    |       	     |
15567850Sdougb |   FreeBSD 4.6.2 Mac OS X  |                 |             |
15667850Sdougb |      |            10.2    |                 |             |
15767850Sdougb |   FreeBSD 4.7      |      |                 |             |
15867850Sdougb |      |             |   NetBSD 1.6       OpenBSD 3.2       |
15967850Sdougb |   FreeBSD 4.8      |      |    |            |             |
16067859Sdougb |      |             |      | NetBSD 1.6.1    |             |
16167859Sdougb |      |--------.    |      |    |        OpenBSD 3.3     BSD/OS 5.0
16267859Sdougb |      |         \   |      |    |            |             |
16367850Sdougb |   FreeBSD 4.9   |  |      |    |        OpenBSD 3.4     BSD/OS 5.1 ISE
16467850Sdougb |      |          |  |      |    |            |
16567850Sdougb |      |          |  |      | NetBSD 1.6.2    |
16667850Sdougb |      |          |  |      |    |            |
16767850Sdougb |      |          |  |      |    |        OpenBSD 3.5
16867850Sdougb |      |          |  |      |    v            |
16967850Sdougb |   FreeBSD 4.10  |  |      |                 |
17067850Sdougb |      |          |  |      |                 |
17167850Sdougb |   FreeBSD 4.11  |  |      |                 |
17267850Sdougb |      |          |  |      |                 |
17367850Sdougb |      v           `-|------|-----------------|---------------------.
17467850Sdougb |                    |      |                 |                      \
17567850SdougbFreeBSD 5.0           |      |                 |                       |
17667850Sdougb |                    |      |                 |                       |
17767850SdougbFreeBSD 5.1           |      |                 |                  DragonFly 1.0
17867850Sdougb |          \         |      |                 |                       |
17967850Sdougb |           ----- Mac OS X  |                 |                       |
18067850Sdougb |                   10.3    |                 |                       |
18167850SdougbFreeBSD 5.2           |      |                 |                       |
18267850Sdougb |      |             |      |                 |                       |
18367850Sdougb |   FreeBSD 5.2.1    |      |                 |                       |
18467850Sdougb |                    |      |                 |                       |
18567850Sdougb *---FreeBSD 5.3      |      |                 |                       |
18667850Sdougb |      |             |      |             OpenBSD 3.6                 |
18767850Sdougb |      |             |   NetBSD 2.0           |                       |
18867850Sdougb |      |             |      |    |            |                 DragonFly 1.2.0
18967850Sdougb |      |          Mac OS X  | NetBSD 2.0.2    |                       |
19067850Sdougb |   FreeBSD 5.4     10.4    |    |            |                       |
19167850Sdougb |      |             |      |    |        OpenBSD 3.7                 |
19267850Sdougb |      V             |      |    v            |                       |
19367850Sdougb |                    |      |             OpenBSD 3.8                 |
19467850Sdougb |                    |      |                 |                       |
19567850SdougbFreeBSD 6 -current    |  NetBSD -current  OpenBSD -current             |
19667850Sdougb |                    |      |                 |                       |
19767850Sdougb v                    v      v                 v                       v
19867850Sdougb
19967850SdougbTime
20067850Sdougb----------------
20167850Sdougb
20267850SdougbTime tolerance +/- 6 months, depending on which book/article you read; if it
20367850Sdougbwas the announcement in Usenet or if it was available as tape.
20467850Sdougb
20567850Sdougb[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
20667859Sdougb	and John Quarterman. The Design and Implementation of
20767850Sdougb	the 4.4BSD Operating System.
20867850Sdougb[APL] Apple website [http://www.apple.com/macosx/]
20967850Sdougb[BSDI] Berkeley Software Design, Inc.
21067850Sdougb[DFB] DragonFlyBSD Project, The.
21167850Sdougb[DOC] README, COPYRIGHT on tape.
21267850Sdougb[FBD] FreeBSD Project, The.
21367850Sdougb[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
21467850Sdougb	Volume 11, Info 4, April, 1987.
21558910Salfred[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
21658910Salfred	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
21752400Sbillf[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
21852400Sbillf	Changes in the Kernel in 2.9BSD. Second Berkeley Software
21952400Sbillf	Distribution UNIX Version 2.9, July, 1983.
22052400Sbillf[NBD] NetBSD Project, The.
22173651Sdougb[OBD] OpenBSD Project, The.
22273651Sdougb[QCU] Salus, Peter H. A quarter century of UNIX.
22373651Sdougb[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
22473651Sdougb[USE] Usenet announcement.
22573651Sdougb[WRS] Wind River Systems, Inc.
22673651Sdougb[dmr] Dennis Ritchie, via E-Mail
22752400Sbillf
22852400SbillfMultics                 1965
22967949SdougbUNIX                    Summer 1969
23052400Sbillf				DEC PDP-7
23152400SbillfFirst   Edition         1971-11-03 [QCU]
23252400Sbillf				DEC PDP-11/20, Assembler
23352400SbillfSecond  Edition         1972-06-12 [QCU]
23452400Sbillf				10 UNIX installations
23591193SdougbThird   Edition         1973-02-xx [QCU]
23652400Sbillf				Pipes, 16 installations
23752400SbillfFourth  Edition         1973-11-xx [QCU]
23852400Sbillf				rewriting in C effected,
23952400Sbillf                                above 30 installations
24052400SbillfFifth   Edition         1974-06-xx [QCU]
24152400Sbillf				above 50 installations
24252400SbillfSixth   Edition         1975-05-xx [QCU]
24352400Sbillf				port to DEC Vax
24452400SbillfSeventh Edition         1979-01-xx [QCU]
24552400Sbillf				first portable UNIX
24652400SbillfEighth  Edition         1985-02-xx [QCU]
24752400Sbillf				VAX 11/750, VAX 11/780 [dmr]
24852400Sbillf				descended from 4.1c BSD [dmr]
24952400Sbillf				descended from 4.1 BSD [44B]
25052400Sbillf			scooping-out and replacement of the character-device
25152400Sbillf			and networking part by the streams mechanism
25252400Sbillf
25352400SbillfNinth   Edition         1986-09-xx [QCU]
25452400SbillfTenth   Edition         1989-10-xx [QCU]
25552400Sbillf
25652400Sbillf1BSD                    late 1977
25752400Sbillf			1978-03-09 [QCU]
25852400Sbillf				PDP-11, Pascal, ex(1)
25952400Sbillf				30 free copies of 1BSD sent out
26067949Sdougb				35 tapes sold for 50 USD [QCU]
26167949Sdougb2BSD                    mid 1978 [QCU]
26267949Sdougb				75 2BSD tapes shipped
26396045Sdougb2.7.9BSD		?? [SMS]
26496045Sdougb2.8BSD			1981-07-xx [KSJ]
26596045Sdougb
26691193Sdougb2.8.1BSD		1982-01-xx [QCU]
26791193Sdougb				set of performance improvements
26896045Sdougb2.9BSD			1983-07-xx [KSJ]
26996045Sdougb2.9.1BSD                1983-11-xx
27091193Sdougb2.9BSD-Seismo		1985-08-xx [SMS]
27152400Sbillf2.10BSD			1987-04-xx [KKK]
27252400Sbillf2.10.1BSD		1989-01-xx [SMS]
27352400Sbillf2.11BSD			1992-02-xx [SMS]
27452400Sbillf2.11BSD rev #430	1999-12-13 [SMS]
27552400Sbillf
27652400Sbillf32V			1978-1[01]-xx [QCU]
27752400Sbillf3BSD                    late 1979 [QCU]
27852400Sbillf				virtual memory, page replacement,
27952400Sbillf                        	demand paging
28052400Sbillf4.0BSD                  1980-10-xx
28152400Sbillf4.1BSD                  1981-07-08 [DOC]
28252400Sbillf4.1aBSD                 1982-04-xx
28352400Sbillf				alpha release, 100 sites, networking [44B]
28452400Sbillf4.1bBSD				internal release, fast filesystem [44B]
28552400Sbillf4.1cBSD                 late 1982
28667949Sdougb				beta release, IPC [44B]
28767949Sdougb4.2BSD                  1983-09-xx [QCU]
28867949Sdougb                        1983-08-03 [DOC]
28952400Sbillf4.3BSD                  1986-06-xx [QCU]
29052400Sbillf			1986-04-05 [KB], [DOC]
29152400Sbillf4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
29252400Sbillf4.3BSD NET/1            1988-11-xx [QCU]
29352400Sbillf                        1989-01-01 [DOC]
29452400Sbillf4.3BSD Reno             1990-06-29 [QCU], [DOC]
29552400Sbillf4.3BSD NET/2            1991-06-28 [QCU], [DOC]
29652400Sbillf
29752400SbillfBSD/386 ALPHA		1991-12-xx [BSDI]
29852400Sbillf				first code released to people outside BSDI
29952400Sbillf386BSD 0.0              1992-02-xx [DOC]
30052400SbillfBSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
30152400SbillfBSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
30264467Sbrian386BSD 0.1              1992-07-28 [DOC]
30352400Sbillf4.4BSD Alpha            1992-07-07
30464467SbrianBSD/386 0.9.3		1992-10-xx [BSDI]
30567859Sdougb				first external gamma; G customers
30652400SbillfBSD/386 0.9.4		1992-12-xx [BSDI]
30752400Sbillf				would have been 1.0 except for request
30864467Sbrian				for preliminary injunction
30964467SbrianBSD/386 1.0 		1993-03-xx [BSDI]
31052400Sbillf				injunction denied; first official release
31152400SbillfNetBSD 0.8              1993-04-20 [NBD]
31252400Sbillf4.4BSD                  1993-06-01 [USE]
31352400SbillfNetBSD 0.9              1993-08-23 [NBD]
31452400SbillfFreeBSD 1.0		1993-11-01 [FBD]
31567859SdougbBSD/386 1.1		1994-02-xx [BSDI]
31667859Sdougb4.4BSD Lite             1994-03-01 [USE]
31767859SdougbFreeBSD 1.1		1994-05-07 [FBD]
31852400SbillfFreeBSD 1.1.5		1994-06-30 [FBD]
31958910SalfredFreeBSD 1.1.5.1		1994-07-05 [FBD]
32052400Sbillf				supersedes 1.1.5 5 days after release.
32152400SbillfNetBSD 1.0              1994-10-26 [NBD]
32258910Salfred386BSD 1.0              1994-11-12 [USE]
32364467SbrianFreeBSD 2.0		1994-11-23 [FBD]
32464467SbrianBSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
32564467SbrianFreeBSD 2.0.5		1995-06-10 [FBD]
32658910SalfredBSD/OS 2.0.1		1995-06-xx [BSDI]
32764467Sbrian4.4BSD Lite Release 2	1995-06-xx [44B]
32864467Sbrian				the true final distribution from the CSRG
32964467SbrianFreeBSD 2.1.0		1995-11-19 [FBD]
33064467SbrianNetBSD 1.1              1995-11-26 [NBD]
33164467SbrianBSD/OS 2.1		1996-01-xx [BSDI]
33264467SbrianFreeBSD 2.1.5		1996-07-14 [FBD]
33358910SalfredNetBSD 1.2              1996-10-04 [NBD]
33452400SbillfOpenBSD 2.0             1996-10-18 [OBD]
33560420SbsdFreeBSD 2.1.6		1996-11-16 [FBD]
33652400SbillfFreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
33752400SbillfRhapsody		1997-xx-xx
33858910SalfredFreeBSD 2.1.7		1997-02-20 [FBD]
33958910SalfredBSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
34058910SalfredFreeBSD 2.2.0		1997-03-16 [FBD]
34152400SbillfFreeBSD 2.2.1		1997-03-25 [FBD]
34252400SbillfFreeBSD 2.2.2		1997-05-16 [FBD]
34358910SalfredNetBSD 1.2.1            1997-05-20 [NBD] (patch release)
34452400SbillfOpenBSD 2.1             1997-06-01 [OBD]
34552400SbillfFreeBSD 2.2.5		1997-10-22 [FBD]
34652400SbillfOpenBSD 2.2             1997-12-01 [OBD]
34752400SbillfNetBSD 1.3              1998-01-04 [NBD]
34852400SbillfFreeBSD 2.2.6		1998-03-25 [FBD]
34952400SbillfNetBSD 1.3.1            1998-03-09 [NBD] (patch release)
35052400SbillfBSD/OS 3.1		1998-03-xx [BSDI]
35152400SbillfOpenBSD 2.3             1998-05-19 [OBD]
35252400SbillfNetBSD 1.3.2            1998-05-29 [NBD] (patch release)
35352400SbillfFreeBSD 2.2.7		1998-07-22 [FBD]
35452400SbillfBSD/OS 4.0		1998-08-xx [BSDI]
35552400Sbillf				2-lock MP support, ELF executables
35652400SbillfFreeBSD 3.0		1998-10-16 [FBD]
35752400Sbillf				FreeBSD-3.0 is a snapshot from -current,
35852400Sbillf				while 3.1 and 3.2 are from 3.x-stable which
35952400Sbillf				was branched quite some time after 3.0-release
36052400SbillfFreeBSD 2.2.8           1998-11-29 [FBD]
36152400SbillfOpenBSD 2.4             1998-12-01 [OBD]
36252400SbillfNetBSD 1.3.3            1998-12-23 [NBD] (patch release)
36352400SbillfFreeBSD 3.1		1999-02-15 [FBD]
36452400SbillfBSD/OS 4.0.1		1999-03-xx [BSDI]
36552400SbillfNetBSD 1.4              1999-05-12 [NBD]
36696045SdougbFreeBSD 3.2             1999-05-17 [FBD]
36796045SdougbOpenBSD 2.5             1999-05-19 [OBD]
36896045SdougbNetBSD 1.4.1            1999-08-26 [NBD] (patch release)
36996045SdougbFreeBSD 3.3             1999-09-17 [FBD]
37096045SdougbOpenBSD 2.6             1999-12-01 [OBD]
37196045SdougbFreeBSD 3.4             1999-12-20 [FBD]
37296045SdougbBSD/OS 4.1		1999-12-xx [BSDI]
37396045SdougbFreeBSD 4.0             2000-03-13 [FBD]
37496045SdougbNetBSD 1.4.2            2000-03-19 [NBD] (patch release)
37596045SdougbOpenBSD 2.7             2000-06-15 [OBD]
37696045SdougbFreeBSD 3.5		2000-06-24 [FBD]
37796045SdougbFreeBSD 4.1		2000-07-27 [FBD]
37896045SdougbFreeBSD 3.5.1		2000-07-28 [FBD]
37996045SdougbFreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
38096045SdougbFreeBSD 4.2  		2000-11-21 [FBD]
38196045SdougbNetBSD 1.4.3		2000-11-25 [NBD] (patch release)
38296045SdougbBSD/OS 4.2		2000-11-29 [BSDI]
38396045SdougbOpenBSD 2.8		2000-12-01 [OBD]
38496045SdougbNetBSD 1.5              2000-12-06 [NBD]
38596045SdougbMac OS X 10.0           2001-03-24 [APL]
38696045SdougbFreeBSD 4.3  		2001-04-20 [FBD]
38773651SdougbOpenBSD 2.9  		2001-06-01 [OBD]
38873651SdougbNetBSD 1.5.1		2001-07-11 [NBD] (patch release)
38973651SdougbNetBSD 1.5.2		2001-09-13 [NBD] (patch release)
39073651SdougbFreeBSD 4.4  		2001-09-18 [FBD]
39152400SbillfMac OS X 10.1		2001-09-29 [APL]
39252400SbillfOpenBSD 3.0		2001-12-01 [OBD]
39352400SbillfFreeBSD 4.5  		2002-01-29 [FBD]
39452400SbillfBSD/OS 4.3		2002-03-14 [WRS]
39552400SbillfOpenBSD 3.1		2002-05-19 [OBD]
39652400SbillfFreeBSD 4.6  		2002-06-15 [FBD]
39752400SbillfNetBSD 1.5.3		2002-07-22 [NBD] (patch release)
39852400SbillfFreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
39952400SbillfMac OS X 10.2		2002-08-23 [APL]
40067859SdougbNetBSD 1.6		2002-09-14 [NBD]
40152400SbillfFreeBSD 4.7		2002-10-08 [FBD]
40252400SbillfOpenBSD 3.2		2002-11-01 [OBD]
40352400SbillfFreeBSD 5.0		2003-01-17 [FBD]
40452400Sbillf				FreeBSD 5.0 is a separate branch off of
40552400Sbillf				-current, similar to 3.0.
40652400SbillfFreeBSD 4.8		2003-04-03 [FBD]
40752400SbillfNetBSD 1.6.1		2003-04-21 [NBD] (patch release)
40852400SbillfOpenBSD 3.3		2003-05-01 [OBD]
40952400SbillfBSD/OS 5.0		2003-05-?? [WRS]
41052400SbillfFreeBSD 5.1		2003-06-09 [FBD]
41167859SdougbMac OS X 10.3		2003-10-24 [APL]
41267859SdougbFreeBSD 4.9		2003-10-28 [FBD]
41367859SdougbBSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
41467859SdougbOpenBSD 3.4		2003-11-01 [OBD]
41567859SdougbFreeBSD 5.2		2004-01-12 [FBD]
41667859SdougbFreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
41767859SdougbNetBSD 1.6.2		2004-03-01 [NBD] (patch release)
41867859SdougbOpenBSD 3.5		2004-04-01 [OBD]
41967859SdougbFreeBSD 4.10		2004-05-27 [FBD]
42067859SdougbDragonFly 1.0		2004-07-12 [DFB]
42152400SbillfOpenBSD 3.6		2004-10-29 [OBD]
42267859SdougbFreeBSD 5.3		2004-11-06 [FBD]
42367859SdougbNetBSD 2.0		2004-12-09 [NBD]
42467859SdougbFreeBSD 4.11		2005-01-25 [FBD]
42567859SdougbDragonFly 1.2.0		2005-04-08 [DFB]
42667859SdougbNetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
42767859SdougbMac OS X 10.4		2005-04-29 [APL]
42867859SdougbFreeBSD 5.4		2005-05-09 [FBD]
42967859SdougbOpenBSD 3.7		2005-05-19 [OBD]
43067859SdougbOpenBSD 3.8		2005-11-01 [OBD]
43167859Sdougb
43267859SdougbBibliography
43367859Sdougb------------------------
43467859Sdougb
43567859SdougbLeffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
43667859SdougbQuarterman. The Design and Implementation of the 4.3BSD UNIX Operating
43767859SdougbSystem. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
43867859Sdougb
43967859SdougbSalus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
44067859SdougbCompany, Inc., 1994. ISBN 0-201-54777-5
44167859Sdougb
44252400SbillfMcKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
44377323SdougbQuarterman. The Design and Implementation of the 4.4BSD Operating
44477323SdougbSystem. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
44552400Sbillf
44652400SbillfMcKusick, Marshall Kirk, George Neville-Neil. The Design and
44752400SbillfImplementation of the FreeBSD Operating System.
44852400SbillfAddison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
44952400Sbillf
45052400SbillfDoug McIlroy. Research Unix Reader.
45152400Sbillf
45252400SbillfMichael G. Brown. The Role of BSD in the Development of Unix.
45352400SbillfPresented to the Tasmanian Unix Special Interest Group of the
45452400SbillfAustralian Computer Society, Hobart, August 1993.
45552400Sbillf
45652400SbillfPeter H. Salus. Unix at 25. Byte Magazine, October 1994.
45752400SbillfURL: http://www.byte.com/art/9410/sec8/art3.htm
45852400Sbillf
45952400SbillfAndreas Klemm, Lars K�ller. If you're going to San Francisco ...
46052400SbillfDie freien BSD-Varianten von Unix. c't April 1997, page 368ff.
46152400Sbillf
46252400SbillfBSD Release Announcements collection.
46352400SbillfURL: http://www.de.FreeBSD.org/de/ftp/releases/
46452400Sbillf
46552400SbillfBSD Hypertext Man Pages
46652400SbillfURL: http://www.FreeBSD.org/cgi/man.cgi
46752400Sbillf
46852400SbillfUNIX history graphing project
46952400SbillfURL: http://minnie.tuhs.org/Unix_History/index.html
47052400Sbillf
47152400SbillfUNIX history
47252400SbillfURL: http://www.levenez.com/unix/
47352400Sbillf
47452400SbillfJames Howard: The BSD Family Tree
47552400SbillfURL: http://www.daemonnews.org/200104/bsd_family.html
47652400Sbillf("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
47752400Sbillf
47891193Sdougb
47991193SdougbAcknowledgments
48091193Sdougb---------------
48191193Sdougb
48291193SdougbJosh Gilliam for suggestions, bug fixes, and finding very old
48391193Sdougboriginal BSD announcements from Usenet or tapes.
48468507Sdougb
48591193SdougbSteven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
48691193Sdougb
48791193Sdougb--
48891193SdougbCopyright (c) 1997-2004 Wolfram Schneider <wosch@FreeBSD.ORG>
48991193SdougbURL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
49091193Sdougb
49191193Sdougb$FreeBSD: head/share/misc/bsd-family-tree 151926 2005-11-01 10:32:42Z maxim $
49291193Sdougb