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bsd-family-tree revision 1.14
      1   1.6    itojun The UNIX system family tree: Research and BSD
      2   1.6    itojun ---------------------------------------------
      3   1.1       abs 
      4   1.1       abs First Edition (V1)
      5   1.1       abs      |
      6   1.1       abs Second Edition (V2)
      7   1.1       abs      |
      8   1.1       abs Third Edition (V3)
      9   1.1       abs      |
     10   1.1       abs Fourth Edition (V4)
     11   1.1       abs      |
     12   1.1       abs Fifth Edition (V5)
     13   1.1       abs      |
     14   1.1       abs Sixth Edition (V6) -----*
     15   1.1       abs        \                |
     16   1.1       abs         \               |
     17   1.1       abs          \              |
     18   1.1       abs Seventh Edition (V7)    |
     19   1.1       abs             \           |
     20   1.1       abs              \        1BSD
     21   1.1       abs              32V        |
     22   1.1       abs                \      2BSD---------------*
     23   1.1       abs                 \    /                   |
     24   1.1       abs                  \  /                    |
     25   1.1       abs                   \/                     |
     26   1.1       abs                  3BSD                    |
     27   1.1       abs                   |                      |
     28   1.1       abs                4.0BSD               2.7.9BSD
     29   1.1       abs                   |                      |
     30   1.6    itojun                4.1BSD --------------> 2.8BSD
     31   1.6    itojun                   |                      |
     32   1.6    itojun               4.1aBSD -----------\       |
     33   1.6    itojun                   |                \     |
     34   1.6    itojun               4.1bBSD                \   |
     35   1.6    itojun                   |                    \ |
     36   1.6    itojun       *------ 4.1cBSD --------------> 2.9BSD
     37   1.6    itojun      /            |                      |
     38   1.6    itojun Eighth Edition    |                   2.9BSD-Seismo
     39   1.1       abs      |            |                      |
     40   1.1       abs      +----<--- 4.2BSD               2.9.1BSD
     41   1.1       abs      |            |                      |
     42   1.1       abs      +----<--- 4.3BSD -------------> 2.10BSD
     43   1.1       abs      |            |               /      |
     44   1.1       abs Ninth Edition     |              / 2.10.1BSD
     45   1.1       abs      |         4.3BSD Tahoe-----+        |
     46   1.1       abs      |            |              \       |
     47   1.1       abs      |            |                \     |
     48   1.1       abs      v            |                  2.11BSD
     49   1.1       abs Tenth Edition     |                      |
     50   1.6    itojun                   |                  2.11BSD rev #430
     51   1.1       abs                4.3BSD NET/1              |
     52   1.1       abs                   |                      v
     53   1.1       abs                4.3BSD Reno
     54   1.1       abs                   |
     55   1.1       abs    *---------- 4.3BSD NET/2 -------------------+-------------*
     56   1.1       abs    |                    |                      |             |
     57   1.7    itojun 386BSD 0.0              |                      |           BSD/386 ALPHA
     58   1.1       abs    |                    |                      |             |
     59   1.7    itojun 386BSD 0.1 ------------>+                      |           BSD/386 0.3.[13]
     60   1.1       abs    |     \              |                  4.4BSD Alpha      |
     61   1.7    itojun    |     386BSD 1.0     |                      |           BSD/386 0.9.[34]
     62   1.1       abs    |                    |                  4.4BSD            |
     63   1.1       abs    |                    |                    / |             |
     64   1.1       abs    |                    |   4.4BSD-Encumbered  |             |
     65   1.7    itojun    |                 NetBSD 0.8                |           BSD/386 1.0
     66   1.1       abs    |                    |                      |             |
     67   1.7    itojun FreeBSD 1.0          NetBSD 0.9                |           BSD/386 1.1
     68   1.7    itojun    |                    |           .----- 4.4BSD Lite       |
     69   1.7    itojun FreeBSD 1.1             |          /   /       |     \       |
     70   1.7    itojun    |                    |         /   /        |      \      |
     71   1.7    itojun FreeBSD 1.1.5       .---|--------'   /         |       \     |
     72   1.7    itojun    |               /    |           /          |        \    |
     73   1.7    itojun FreeBSD 1.1.5.1   /     |          /           |         \   |
     74   1.7    itojun    |             /   NetBSD 1.0 <-'            |          \  |
     75   1.7    itojun    |            /       |                      |           \ |
     76   1.7    itojun FreeBSD 2.0 <--'        |                      |           BSD/OS 2.0
     77   1.7    itojun    |                     \                     |             |
     78   1.7    itojun FreeBSD 2.0.5             \                    |           BSD/OS 2.0.1
     79  1.11    itojun    |                 .-----\------------- 4.4BSD Lite2       |
     80  1.11    itojun    |                 |      \             |  |   |   |       |
     81  1.11    itojun    |                 | .-----|------Rhapsody |   |   |       |
     82  1.11    itojun    |                 | |     |        NetBSD 1.3 |   |       |
     83  1.11    itojun    |                 | |     |           OpenBSD 2.3 |       |
     84  1.11    itojun    |                 | |     |                BSD/OS 3.0     |
     85  1.11    itojun FreeBSD 2.1          | |     |                               |
     86  1.11    itojun  |   |               | |  NetBSD 1.1 ------.               BSD/OS 2.1
     87  1.11    itojun  | FreeBSD 2.1.5     | |     |              \                |
     88  1.11    itojun  |     |             | |  NetBSD 1.2         \             BSD/OS 3.0
     89  1.11    itojun  | FreeBSD 2.1.6     | |     |  \          OpenBSD 2.0       |
     90  1.11    itojun  |     |             | |     |   \             |             |
     91  1.11    itojun  | FreeBSD 2.1.6.1   | |     |    \            |             |
     92  1.11    itojun  |     |             | |     |     \           |             |
     93  1.11    itojun  | FreeBSD 2.1.7     | |     |      |          |             |
     94  1.11    itojun  |     |             | |     |  NetBSD 1.2.1   |             |
     95  1.11    itojun  | FreeBSD 2.1.7.1   | |     |                 |             |
     96  1.11    itojun  |                   | |     |                 |             |
     97  1.11    itojun  |                   | |     |                 |             |
     98  1.11    itojun  *-FreeBSD 2.2       | |     |                 |             |
     99  1.11    itojun  |        \          | |     |                 |             |
    100  1.11    itojun  |     FreeBSD 2.2.1 | |     |                 |             |
    101  1.11    itojun  |         |         | |     |                 |             |
    102  1.11    itojun  |     FreeBSD 2.2.2 | |     |             OpenBSD 2.1       |
    103  1.11    itojun  |         |         | |     |                 |             |
    104  1.11    itojun  |     FreeBSD 2.2.5 | |     |                 |             |
    105  1.11    itojun  |         |         | |     |             OpenBSD 2.2       |
    106  1.11    itojun  |         |         | |  NetBSD 1.3           |             |
    107  1.11    itojun  |     FreeBSD 2.2.6 | |     |    |            |             |
    108  1.11    itojun  |         |         | |     | NetBSD 1.3.1    |           BSD/OS 3.1
    109  1.11    itojun  |         |         | |     |    |        OpenBSD 2.3       |
    110  1.11    itojun  |         |         | |     | NetBSD 1.3.2    |             |
    111  1.11    itojun  |     FreeBSD 2.2.7 | |     |    |            |             |
    112  1.11    itojun  |         |         | |     |    |            |           BSD/OS 4.0
    113  1.11    itojun  |         v         | |     |    |            |             |
    114  1.11    itojun  |     FreeBSD 2.2.8 | |     |    |            |             |
    115  1.11    itojun  |                   | |     |    |        OpenBSD 2.4       |
    116  1.11    itojun FreeBSD 3.0 <--------* |     |    v            |             |
    117  1.11    itojun  |                     |     | NetBSD 1.3.3    |             |
    118  1.11    itojun  *---FreeBSD 3.1       |     |                 |             |
    119  1.11    itojun  |       |             |     |                 |           BSD/OS 4.0.1
    120  1.11    itojun  |   FreeBSD 3.2----*  |  NetBSD 1.4       OpenBSD 2.5       |
    121  1.11    itojun  |       |          |  |  |  |    |            |             |
    122  1.11    itojun  |       |          |  |  |  |    |            |             |
    123  1.11    itojun  |       |          |  |  |  |    |            |             |
    124  1.11    itojun  |   FreeBSD 3.3    |  |  |  | NetBSD 1.4.1    |             |
    125  1.11    itojun  |       |          |  |  |  |    |        OpenBSD 2.6       |
    126  1.11    itojun  |   FreeBSD 3.4    |  |  |  |    |            |             |
    127  1.11    itojun  |           |      |  |  |  |    |            |           BSD/OS 4.1
    128  1.11    itojun FreeBSD 4.0  |      |  |  |  | NetBSD 1.4.2    |             |
    129  1.11    itojun  |           |      |  |  |  |    |            |             |
    130  1.11    itojun  |           |      |  |  |  |    |            |             |
    131  1.11    itojun  |   FreeBSD 3.5    |  |  |  |    |        OpenBSD 2.7       |
    132  1.11    itojun  |           |      |  |  |  |    |            |             |
    133  1.11    itojun  |   FreeBSD 3.5.1  |  |  |  |    |            |             |
    134  1.11    itojun  |                  |  |  |  |    |            |             |
    135  1.11    itojun  *---FreeBSD 4.1    |  |  |  |    |            |             |
    136  1.11    itojun  |      |           |  | (?) |    |            |             |
    137  1.11    itojun  |   FreeBSD 4.1.1  |  |  /  |    |            |             |
    138  1.11    itojun  |      |           |  | /   |    v            |             |
    139  1.11    itojun  |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
    140  1.13  junyoung  |      |         Mac OS X   |    |        OpenBSD 2.8     BSD/OS 4.2
    141  1.13  junyoung  |      |             |      |    v            |             |
    142  1.13  junyoung  |      |             |      |                 |             |
    143  1.11    itojun  |      |           10.0  NetBSD 1.5           |             |
    144  1.11    itojun  |   FreeBSD 4.3      |      |    |            |             v
    145  1.11    itojun  |      |             |      |    v        OpenBSD 2.9
    146  1.11    itojun  |      |             |      | NetBSD 1.5.1    |
    147  1.11    itojun  |      |             |      |    |            |
    148  1.11    itojun  |   FreeBSD 4.4      |      | NetBSD 1.5.2    |
    149  1.12     grant  |      |             |      |    |            |
    150  1.13  junyoung  |      |             |      |    v        OpenBSD 3.0
    151  1.13  junyoung  |   FreeBSD 4.5      |      |                 |
    152  1.13  junyoung  |      |             |      |                 |
    153  1.13  junyoung  |   FreeBSD 4.6      |      |                 |
    154  1.13  junyoung  |      |             |      |                 |
    155  1.13  junyoung  |      v             |      |                 |
    156  1.11    itojun  |                    |      |                 |
    157  1.11    itojun FreeBSD 5.0-current   |   NetBSD -current  OpenBSD -current
    158  1.11    itojun  |                    |      |                 |
    159  1.11    itojun  v                    |      v                 v
    160  1.11    itojun                    Mac OS X  
    161  1.11    itojun                      10.1
    162   1.1       abs 
    163   1.1       abs Time
    164   1.1       abs ----------------
    165   1.1       abs 
    166   1.7    itojun Time tolerance +/- 6 months, depending on which book/article you read; if it
    167   1.7    itojun was the announcement in Usenet or if it was available as tape.
    168   1.1       abs 
    169   1.1       abs [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
    170   1.1       abs 	and John Quarterman. The Design and Implementation of
    171   1.1       abs 	the 4.4BSD Operating System.
    172  1.11    itojun [APL] Apple website [http://www.apple.com/macosx/]
    173   1.1       abs [DOC] README, COPYRIGHT on tape.
    174   1.1       abs [QCU] Salus, Peter H. A quarter century of UNIX.
    175   1.1       abs [U25] Peter H. Salus. Unix at 25.
    176   1.1       abs [USE] Usenet announcement.
    177   1.1       abs [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
    178   1.1       abs 	Changes in the Kernel in 2.9BSD. Second Berkeley Software
    179   1.1       abs 	Distribution UNIX Version 2.9, July, 1983.
    180   1.1       abs [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
    181   1.1       abs 	Volume 11, Info 4, April, 1987.
    182   1.1       abs [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
    183   1.1       abs 	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
    184   1.1       abs [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
    185   1.1       abs [FBD] FreeBSD Project, The.
    186   1.1       abs [NBD] NetBSD Project, The.
    187   1.1       abs [OBD] OpenBSD Project, The.
    188   1.1       abs [dmr] Dennis Ritchie, via E-Mail
    189   1.7    itojun [BSDI] Berkeley Software Design, Inc.
    190   1.1       abs 
    191   1.1       abs Multics                 1965
    192   1.6    itojun UNIX                    Summer 1969
    193   1.1       abs 				DEC PDP-7
    194   1.1       abs First   Edition         1971-11-03 [QCU]
    195   1.1       abs 				DEC PDP-11/20, Assembler
    196   1.1       abs Second  Edition         1972-06-12 [QCU]
    197   1.6    itojun 				10 UNIX installations
    198   1.1       abs Third   Edition         1973-02-xx [QCU]
    199   1.1       abs 				Pipes, 16 installations
    200   1.1       abs Fourth  Edition         1973-11-xx [QCU]
    201   1.1       abs 				rewriting in C effected,
    202   1.1       abs                                 above 30 installations
    203   1.1       abs Fifth   Edition         1974-06-xx [QCU]
    204   1.1       abs 				above 50 installations
    205   1.1       abs Sixth   Edition         1975-05-xx [QCU]
    206   1.1       abs 				port to DEC Vax
    207   1.1       abs Seventh Edition         1979-01-xx [QCU]
    208   1.6    itojun 				first portable UNIX
    209   1.6    itojun Eighth  Edition         1985-02-xx [QCU]
    210   1.1       abs 				VAX 11/750, VAX 11/780 [dmr]
    211   1.1       abs 				descended from 4.1c BSD [dmr]
    212   1.1       abs 				descended from 4.1 BSD [44B]
    213   1.7    itojun 			scooping-out and replacement of the character-device
    214   1.1       abs 			and networking part by the streams mechanism
    215   1.1       abs 
    216   1.1       abs Ninth   Edition         1986-09-xx [QCU]
    217   1.1       abs Tenth   Edition         1989-10-xx [QCU]
    218   1.1       abs 
    219   1.1       abs 1BSD                    late 1977
    220   1.1       abs 			1978-03-09 [QCU]
    221   1.1       abs 				PDP-11, Pascal, ex(1)
    222   1.1       abs 				30 free copies of 1BSD sent out
    223   1.1       abs 				35 tapes sold for 50 USD [QCU]
    224   1.1       abs 2BSD                    mid 1978 [QCU]
    225   1.1       abs 				75 2BSD tapes shipped
    226   1.1       abs 2.7.9BSD		?? [SMS]
    227   1.1       abs 2.8BSD			1981-07-xx [KSJ]
    228   1.1       abs 
    229   1.1       abs 2.8.1BSD		1982-01-xx [QCU]
    230   1.1       abs 				set of performance improvements
    231   1.1       abs 2.9BSD			1983-07-xx [KSJ]
    232   1.1       abs 2.9.1BSD                1983-11-xx
    233   1.1       abs 2.9BSD-Seismo		1985-08-xx [SMS]
    234   1.1       abs 2.10BSD			1987-04-xx [KKK]
    235   1.1       abs 2.10.1BSD		1989-01-xx [SMS]
    236   1.1       abs 2.11BSD			1992-02-xx [SMS]
    237   1.6    itojun 2.11BSD rev #430	1999-12-13 [SMS]
    238   1.1       abs 
    239   1.1       abs 32V			1978-1[01]-xx [QCU]
    240   1.1       abs 3BSD                    late 1979 [QCU]
    241   1.1       abs 				virtual memory, page replacement,
    242   1.1       abs                         	demand paging
    243   1.1       abs 4.0BSD                  1980-10-xx
    244  1.13  junyoung 4.1BSD                  1981-07-08 [DOC]
    245   1.1       abs 4.1aBSD                 1982-04-xx
    246   1.1       abs 				alpha release, 100 sites, networking [44B]
    247   1.1       abs 4.1bBSD				internal release, fast filesystem [44B]
    248   1.1       abs 4.1cBSD                 late 1982
    249   1.1       abs 				beta release, IPC [44B]
    250   1.1       abs 4.2BSD                  1983-09-xx [QCU]
    251  1.13  junyoung                         1983-08-03 [DOC]
    252   1.1       abs 4.3BSD                  1986-06-xx [QCU]
    253  1.13  junyoung 			1986-04-05 [KB], [DOC]
    254  1.13  junyoung 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
    255   1.1       abs 4.3BSD NET/1            1988-11-xx [QCU]
    256  1.13  junyoung                         1989-01-01 [DOC]
    257  1.13  junyoung 4.3BSD Reno             1990-06-29 [QCU], [DOC]
    258  1.13  junyoung 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
    259   1.7    itojun 
    260   1.7    itojun BSD/386 ALPHA		1991-12-xx [BSDI]
    261   1.7    itojun 				first code released to people outside BSDI
    262   1.1       abs 386BSD 0.0              1992-02-xx [DOC]
    263   1.7    itojun BSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
    264   1.7    itojun BSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
    265   1.7    itojun 386BSD 0.1              1992-07-28 [DOC]
    266   1.1       abs 4.4BSD Alpha            1992-07-07
    267   1.7    itojun BSD/386 0.9.3		1992-10-xx [BSDI]
    268   1.7    itojun 				first external gamma; G customers
    269   1.7    itojun BSD/386 0.9.4		1992-12-xx [BSDI]
    270   1.7    itojun 				would have been 1.0 except for request
    271   1.7    itojun 				for preliminary injunction
    272   1.7    itojun BSD/386 1.0 		1993-03-xx [BSDI]
    273   1.7    itojun 				injunction denied; first official release
    274   1.6    itojun NetBSD 0.8              1993-04-20 [NBD]
    275   1.1       abs 4.4BSD                  1993-06-01 [USE]
    276   1.1       abs NetBSD 0.9              1993-08-23 [NBD]
    277   1.8    itojun FreeBSD 1.0		1993-11-01 [FBD]
    278   1.7    itojun BSD/386 1.1		1994-02-xx [BSDI]
    279   1.1       abs 4.4BSD Lite             1994-03-01 [USE]
    280   1.6    itojun FreeBSD 1.1		1994-04-xx [FBD]
    281   1.6    itojun FreeBSD 1.1.5.1		1994-07-xx [FBD]
    282   1.6    itojun 				supersedes 1.1.5 3 days after release.
    283   1.6    itojun NetBSD 1.0              1994-10-26 [NBD]
    284   1.1       abs 386BSD 1.0              1994-11-12 [USE]
    285   1.6    itojun FreeBSD 2.0		1995-01-xx [FBD]
    286   1.7    itojun BSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
    287   1.7    itojun FreeBSD 2.0.5		1995-06-10 [FBD]
    288   1.7    itojun BSD/OS 2.0.1		1995-06-xx [BSDI]
    289   1.6    itojun 4.4BSD Lite Release 2	1995-06-xx [44B]
    290   1.6    itojun 				the true final distribution from the CSRG
    291   1.7    itojun FreeBSD 2.1.0		1995-11-19 [FBD]
    292   1.1       abs NetBSD 1.1              1995-11-26 [NBD]
    293   1.7    itojun BSD/OS 2.1		1996-01-xx [BSDI]
    294   1.7    itojun FreeBSD 2.1.5		1996-07-14 [FBD]
    295   1.1       abs NetBSD 1.2              1996-10-04 [NBD]
    296   1.1       abs OpenBSD 2.0             1996-10-18 [OBD]
    297   1.7    itojun FreeBSD 2.1.6		1996-11-16 [FBD]
    298   1.7    itojun FreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
    299  1.11    itojun Rhapsody		1997-xx-xx
    300   1.7    itojun FreeBSD 2.1.7		1997-02-20 [FBD]
    301   1.7    itojun BSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
    302   1.7    itojun FreeBSD 2.2.0		1997-03-16 [FBD]
    303   1.7    itojun FreeBSD 2.2.1		1997-03-25 [FBD]
    304   1.7    itojun FreeBSD 2.2.2		1997-05-16 [FBD]
    305   1.6    itojun NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
    306   1.1       abs OpenBSD 2.1             1997-06-01 [OBD]
    307   1.7    itojun FreeBSD 2.2.5		1997-10-22 [FBD]
    308   1.1       abs OpenBSD 2.2             1997-12-01 [OBD]
    309   1.5       abs NetBSD 1.3              1998-01-04 [NBD]
    310   1.7    itojun FreeBSD 2.2.6		1998-03-25 [FBD]
    311   1.6    itojun NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
    312   1.7    itojun BSD/OS 3.1		1998-03-xx [BSDI]
    313   1.1       abs OpenBSD 2.3             1998-05-19 [OBD]
    314   1.6    itojun NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
    315   1.7    itojun FreeBSD 2.2.7		1998-07-22 [FBD]
    316   1.7    itojun BSD/OS 4.0		1998-08-xx [BSDI]
    317   1.7    itojun 				2-lock MP support, ELF executables
    318   1.6    itojun FreeBSD 3.0		1998-10-16 [FBD]
    319   1.7    itojun 				FreeBSD-3.0 is a snapshot from -current,
    320   1.7    itojun 				while 3.1 and 3.2 are from 3.x-stable which
    321   1.6    itojun 				was branched quite some time after 3.0-release
    322   1.1       abs FreeBSD 2.2.8           1998-11-29 [FBD]
    323   1.1       abs OpenBSD 2.4             1998-12-01 [OBD]
    324   1.6    itojun NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
    325   1.6    itojun FreeBSD 3.1		1999-02-15 [FBD]
    326   1.7    itojun BSD/OS 4.0.1		1999-03-xx [BSDI]
    327   1.4       abs NetBSD 1.4              1999-05-12 [NBD]
    328   1.6    itojun FreeBSD 3.2             1999-05-17 [FBD]
    329   1.4       abs OpenBSD 2.5             1999-05-19 [OBD]
    330   1.6    itojun NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
    331   1.6    itojun FreeBSD 3.3             1999-09-17 [FBD]
    332   1.6    itojun OpenBSD 2.6             1999-12-01 [OBD]
    333   1.6    itojun FreeBSD 3.4             1999-12-20 [FBD]
    334   1.7    itojun BSD/OS 4.1		1999-12-xx [BSDI]
    335   1.6    itojun FreeBSD 4.0             2000-03-13 [FBD]
    336   1.6    itojun NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
    337   1.6    itojun OpenBSD 2.7             2000-06-15 [OBD]
    338   1.6    itojun FreeBSD 3.5		2000-06-24 [FBD]
    339   1.6    itojun FreeBSD 4.1		2000-07-27 [FBD]
    340   1.6    itojun FreeBSD 3.5.1		2000-07-28 [FBD]
    341   1.6    itojun FreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
    342   1.7    itojun FreeBSD 4.2  		2000-11-21 [FBD]
    343   1.7    itojun NetBSD 1.4.3		2000-11-25 [NBD] (patch release)
    344   1.7    itojun BSD/OS 4.2		2000-11-29 [BSDI]
    345   1.7    itojun OpenBSD 2.8		2000-12-01 [OBD]
    346   1.7    itojun NetBSD 1.5              2000-12-06 [NBD]
    347  1.11    itojun Mac OS X 10.0           2001-03-24 [APL]
    348   1.8    itojun FreeBSD 4.3  		2001-04-20 [FBD]
    349   1.8    itojun OpenBSD 2.9  		2001-06-01 [OBD]
    350  1.11    itojun NetBSD 1.5.1		2001-07-11 [NBD] (patch release)
    351  1.11    itojun NetBSD 1.5.2		2001-09-13 [NBD] (patch release)
    352  1.11    itojun FreeBSD 4.4  		2001-09-18 [FBD]
    353  1.11    itojun Mac OS X 10.1		2001-09-xx [APL]
    354  1.13  junyoung OpenBSD 3.0		2001-12-01 [OBD]
    355  1.13  junyoung FreeBSD 4.5  		2002-01-29 [FBD]
    356  1.13  junyoung FreeBSD 4.6  		2002-06-xx [FBD]
    357  1.14  junyoung NetBSD 1.5.3		2002-07-22 [NBD] (patch release)
    358   1.1       abs 
    359   1.1       abs 
    360   1.1       abs Bibliography
    361   1.1       abs ------------------------
    362   1.1       abs 
    363   1.1       abs Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
    364   1.1       abs Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
    365   1.1       abs System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
    366   1.1       abs 
    367   1.1       abs Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
    368   1.1       abs Company, Inc., 1994. ISBN 0-201-54777-5
    369   1.1       abs 
    370   1.1       abs McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
    371   1.1       abs Quarterman. The Design and Implementation of the 4.4BSD Operating
    372   1.1       abs System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
    373   1.1       abs 
    374   1.1       abs Doug McIlroy. Research Unix Reader.
    375   1.1       abs 
    376   1.1       abs Michael G. Brown. The Role of BSD in the Development of Unix.
    377   1.1       abs Presented to the Tasmanian Unix Special Interest Group of the
    378   1.1       abs Australian Computer Society, Hobart, August 1993.
    379   1.1       abs 
    380   1.6    itojun Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
    381   1.9    itojun URL: http://www.byte.com/art/9410/sec8/art3.htm (unreachable)
    382   1.1       abs 
    383   1.1       abs Andreas Klemm, Lars Kller. If you're going to San Francisco ...
    384   1.1       abs Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
    385   1.1       abs 
    386   1.1       abs BSD Release Announcements collection.
    387   1.6    itojun URL: http://www.de.FreeBSD.org/de/ftp/releases/
    388   1.1       abs 
    389   1.1       abs BSD Hypertext Man Pages
    390   1.9    itojun URL: http://www.FreeBSD.org/cgi/man.cgi
    391   1.6    itojun 
    392   1.6    itojun UNIX history graphing project
    393   1.9    itojun URL: http://minnie.tuhs.org/Unix_History/index.html
    394   1.6    itojun 
    395   1.6    itojun UNIX history
    396   1.9    itojun URL: http://perso.wanadoo.fr/levenez/unix/
    397   1.1       abs 
    398   1.8    itojun James Howard: The BSD Family Tree
    399   1.9    itojun URL: http://www.daemonnews.org/200104/bsd_family.html
    400   1.8    itojun ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
    401   1.8    itojun 
    402   1.8    itojun 
    403   1.1       abs Acknowledgments
    404   1.1       abs ---------------
    405   1.1       abs 
    406   1.6    itojun Josh Gilliam for suggestions, bug fixes, and finding very old
    407   1.1       abs original BSD announcements from Usenet or tapes.
    408   1.1       abs 
    409   1.1       abs Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
    410   1.1       abs 
    411   1.1       abs --
    412   1.8    itojun Copyright (c) 1997-2001 Wolfram Schneider <wosch (a] FreeBSD.ORG>
    413   1.7    itojun URL: ftp://ftp.freebsd.org/pub/FreeBSD/branches/-current/src/share/misc/bsd-family-tree
    414   1.1       abs 
    415  1.13  junyoung $FreeBSD: src/share/misc/bsd-family-tree,v 1.58 2002/03/10 19:00:37 wosch Exp $
    416