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bsd-family-tree revision 1.36
      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  1.33       tls    |               - NetBSD 0.8                |           BSD/386 1.0
     66  1.33       tls    |              /     |                      |             |
     67  1.33       tls 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  1.16  junyoung  |      |           |  | /   |    |            |             |
    139  1.11    itojun  |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
    140  1.25      soda  |      |         Mac OS X   |             OpenBSD 2.8     BSD/OS 4.2
    141  1.25      soda  |      |             |      |                 |             |
    142  1.13  junyoung  |      |             |      |                 |             |
    143  1.11    itojun  |      |           10.0  NetBSD 1.5           |             |
    144  1.17  junyoung  |   FreeBSD 4.3      |      |    |            |             |
    145  1.17  junyoung  |      |             |      |    |        OpenBSD 2.9       |
    146  1.17  junyoung  |      |             |      | NetBSD 1.5.1    |             |
    147  1.17  junyoung  |      |             |      |    |            |             |
    148  1.17  junyoung  |   FreeBSD 4.4-.    |      | NetBSD 1.5.2    |             |
    149  1.17  junyoung  |      |        | Mac OS X  |    |            |             |
    150  1.17  junyoung  |      |        |   10.1    |    |        OpenBSD 3.0       |
    151  1.17  junyoung  |   FreeBSD 4.5 |    |      |    |            |             |
    152  1.17  junyoung  |      |         \   |      |    |            |           BSD/OS 4.3
    153  1.17  junyoung  |   FreeBSD 4.6   \  |      |    |        OpenBSD 3.1       |
    154  1.21      cjep  |      |           \ |      | NetBSD 1.5.3    |       	     |
    155  1.25      soda  |   FreeBSD 4.6.2 Mac OS X  |                 |             |
    156  1.25      soda  |      |            10.2    |                 |             |
    157  1.21      cjep  |   FreeBSD 4.7      |      |                 |             |
    158  1.21      cjep  |      |             |   NetBSD 1.6       OpenBSD 3.2       |
    159  1.21      cjep  |   FreeBSD 4.8      |      |    |            |             |
    160  1.21      cjep  |      |             |      | NetBSD 1.6.1    |             |
    161  1.23     peter  |      |--------.    |      |    |        OpenBSD 3.3     BSD/OS 5.0
    162  1.23     peter  |      |         \   |      |    |            |             |
    163  1.23     peter  |   FreeBSD 4.9   |  |      |    |        OpenBSD 3.4     BSD/OS 5.1 ISE
    164  1.23     peter  |      |          |  |      |    |            |
    165  1.23     peter  |      |          |  |      | NetBSD 1.6.2    |
    166  1.23     peter  |      |          |  |      |    |            |
    167  1.23     peter  |      |          |  |      |    |        OpenBSD 3.5
    168  1.23     peter  |      |          |  |      |    v            |
    169  1.23     peter  |   FreeBSD 4.10  |  |      |                 |
    170  1.23     peter  |      |          |  |      |                 |
    171  1.23     peter  |   FreeBSD 4.11  |  |      |                 |
    172  1.23     peter  |      |          |  |      |                 |
    173  1.23     peter  |      v           `-|------|-----------------|---------------------.
    174  1.23     peter  |                    |      |                 |                      \
    175  1.23     peter FreeBSD 5.0           |      |                 |                       |
    176  1.23     peter  |                    |      |                 |                       |
    177  1.23     peter FreeBSD 5.1           |      |                 |                  DragonFly 1.0
    178  1.23     peter  |          \         |      |                 |                       |
    179  1.23     peter  |           ----- Mac OS X  |                 |                       |
    180  1.23     peter  |                   10.3    |                 |                       |
    181  1.23     peter FreeBSD 5.2           |      |                 |                       |
    182  1.23     peter  |      |             |      |                 |                       |
    183  1.23     peter  |   FreeBSD 5.2.1    |      |                 |                       |
    184  1.23     peter  |                    |      |                 |                       |
    185  1.35    rpaulo  *-------FreeBSD 5.3  |      |                 |                       |
    186  1.35    rpaulo  |           |        |      |             OpenBSD 3.6                 |
    187  1.35    rpaulo  |           |        |   NetBSD 2.0           |                       |
    188  1.35    rpaulo  |           |        |      | |  |            |                 DragonFly 1.2.0
    189  1.35    rpaulo  |           |     Mac OS X  | | NetBSD 2.0.2  |                       |
    190  1.35    rpaulo  |           |       10.4    | |  |            |                       |
    191  1.35    rpaulo  |       FreeBSD 5.4  |      | |  |            |                       |
    192  1.35    rpaulo  |           |        |      | |  |        OpenBSD 3.7                 |
    193  1.35    rpaulo  |           |        |      | | NetBSD 2.0.3  |                       |
    194  1.35    rpaulo  |           |        |      | |  |            |                       |
    195  1.35    rpaulo  *--FreeBSD  |        |      | |  v        OpenBSD 3.8                 |
    196  1.35    rpaulo  |    6.0    |        |      | |               |                       |
    197  1.35    rpaulo  |     |     |        |      |  \              |                       |
    198  1.35    rpaulo  |     |     |        |      | NetBSD 2.1      |                       |
    199  1.35    rpaulo  |     |     |        |      |                 |                       |
    200  1.35    rpaulo  |     |     |        |   NetBSD 3.0           |                       |
    201  1.36    rpaulo  |     |     |        |      |    |            |                 DragonFly 1.4.0
    202  1.36    rpaulo  |     |     |        |      |    |        OpenBSD 3.9                 |
    203  1.36    rpaulo  |     |     |        |      |    |            |                       |
    204  1.36    rpaulo  |  FreeBSD  |        |      |   NetBSD 3.0.1  |                       |
    205  1.35    rpaulo  |    6.1    |        |      |                 |                       |
    206  1.36    rpaulo  |     |  FreeBSD 5.5 |      |                 |                 DragonFly 1.6.0
    207  1.35    rpaulo  |     V              |      |                 |                       |
    208  1.29    rpaulo FreeBSD 7 -current    |  NetBSD -current  OpenBSD -current             |
    209  1.23     peter  |                    |      |                 |                       |
    210  1.23     peter  v                    v      v                 v                       v
    211   1.1       abs 
    212   1.1       abs Time
    213   1.1       abs ----------------
    214   1.1       abs 
    215   1.7    itojun Time tolerance +/- 6 months, depending on which book/article you read; if it
    216   1.7    itojun was the announcement in Usenet or if it was available as tape.
    217   1.1       abs 
    218   1.1       abs [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
    219   1.1       abs 	and John Quarterman. The Design and Implementation of
    220   1.1       abs 	the 4.4BSD Operating System.
    221  1.11    itojun [APL] Apple website [http://www.apple.com/macosx/]
    222  1.17  junyoung [BSDI] Berkeley Software Design, Inc.
    223  1.24      soda [DFB] DragonFlyBSD Project, The.
    224   1.1       abs [DOC] README, COPYRIGHT on tape.
    225  1.17  junyoung [FBD] FreeBSD Project, The.
    226   1.1       abs [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
    227   1.1       abs 	Volume 11, Info 4, April, 1987.
    228   1.1       abs [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
    229   1.1       abs 	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
    230  1.17  junyoung [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
    231  1.17  junyoung 	Changes in the Kernel in 2.9BSD. Second Berkeley Software
    232  1.17  junyoung 	Distribution UNIX Version 2.9, July, 1983.
    233   1.1       abs [NBD] NetBSD Project, The.
    234   1.1       abs [OBD] OpenBSD Project, The.
    235  1.17  junyoung [QCU] Salus, Peter H. A quarter century of UNIX.
    236  1.17  junyoung [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
    237  1.17  junyoung [USE] Usenet announcement.
    238  1.17  junyoung [WRS] Wind River Systems, Inc.
    239   1.1       abs [dmr] Dennis Ritchie, via E-Mail
    240   1.1       abs 
    241   1.1       abs Multics                 1965
    242   1.6    itojun UNIX                    Summer 1969
    243   1.1       abs 				DEC PDP-7
    244   1.1       abs First   Edition         1971-11-03 [QCU]
    245   1.1       abs 				DEC PDP-11/20, Assembler
    246   1.1       abs Second  Edition         1972-06-12 [QCU]
    247   1.6    itojun 				10 UNIX installations
    248   1.1       abs Third   Edition         1973-02-xx [QCU]
    249   1.1       abs 				Pipes, 16 installations
    250   1.1       abs Fourth  Edition         1973-11-xx [QCU]
    251   1.1       abs 				rewriting in C effected,
    252   1.1       abs                                 above 30 installations
    253   1.1       abs Fifth   Edition         1974-06-xx [QCU]
    254   1.1       abs 				above 50 installations
    255   1.1       abs Sixth   Edition         1975-05-xx [QCU]
    256   1.1       abs 				port to DEC Vax
    257   1.1       abs Seventh Edition         1979-01-xx [QCU]
    258   1.6    itojun 				first portable UNIX
    259   1.6    itojun Eighth  Edition         1985-02-xx [QCU]
    260   1.1       abs 				VAX 11/750, VAX 11/780 [dmr]
    261   1.1       abs 				descended from 4.1c BSD [dmr]
    262   1.1       abs 				descended from 4.1 BSD [44B]
    263   1.7    itojun 			scooping-out and replacement of the character-device
    264   1.1       abs 			and networking part by the streams mechanism
    265   1.1       abs 
    266   1.1       abs Ninth   Edition         1986-09-xx [QCU]
    267   1.1       abs Tenth   Edition         1989-10-xx [QCU]
    268   1.1       abs 
    269   1.1       abs 1BSD                    late 1977
    270   1.1       abs 			1978-03-09 [QCU]
    271   1.1       abs 				PDP-11, Pascal, ex(1)
    272   1.1       abs 				30 free copies of 1BSD sent out
    273   1.1       abs 				35 tapes sold for 50 USD [QCU]
    274   1.1       abs 2BSD                    mid 1978 [QCU]
    275   1.1       abs 				75 2BSD tapes shipped
    276   1.1       abs 2.7.9BSD		?? [SMS]
    277   1.1       abs 2.8BSD			1981-07-xx [KSJ]
    278   1.1       abs 
    279   1.1       abs 2.8.1BSD		1982-01-xx [QCU]
    280   1.1       abs 				set of performance improvements
    281   1.1       abs 2.9BSD			1983-07-xx [KSJ]
    282   1.1       abs 2.9.1BSD                1983-11-xx
    283   1.1       abs 2.9BSD-Seismo		1985-08-xx [SMS]
    284   1.1       abs 2.10BSD			1987-04-xx [KKK]
    285   1.1       abs 2.10.1BSD		1989-01-xx [SMS]
    286   1.1       abs 2.11BSD			1992-02-xx [SMS]
    287   1.6    itojun 2.11BSD rev #430	1999-12-13 [SMS]
    288   1.1       abs 
    289   1.1       abs 32V			1978-1[01]-xx [QCU]
    290   1.1       abs 3BSD                    late 1979 [QCU]
    291   1.1       abs 				virtual memory, page replacement,
    292   1.1       abs                         	demand paging
    293   1.1       abs 4.0BSD                  1980-10-xx
    294  1.13  junyoung 4.1BSD                  1981-07-08 [DOC]
    295   1.1       abs 4.1aBSD                 1982-04-xx
    296   1.1       abs 				alpha release, 100 sites, networking [44B]
    297   1.1       abs 4.1bBSD				internal release, fast filesystem [44B]
    298   1.1       abs 4.1cBSD                 late 1982
    299   1.1       abs 				beta release, IPC [44B]
    300   1.1       abs 4.2BSD                  1983-09-xx [QCU]
    301  1.13  junyoung                         1983-08-03 [DOC]
    302   1.1       abs 4.3BSD                  1986-06-xx [QCU]
    303  1.13  junyoung 			1986-04-05 [KB], [DOC]
    304  1.13  junyoung 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
    305   1.1       abs 4.3BSD NET/1            1988-11-xx [QCU]
    306  1.13  junyoung                         1989-01-01 [DOC]
    307  1.13  junyoung 4.3BSD Reno             1990-06-29 [QCU], [DOC]
    308  1.13  junyoung 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
    309   1.7    itojun 
    310   1.7    itojun BSD/386 ALPHA		1991-12-xx [BSDI]
    311   1.7    itojun 				first code released to people outside BSDI
    312   1.1       abs 386BSD 0.0              1992-02-xx [DOC]
    313   1.7    itojun BSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
    314   1.7    itojun BSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
    315   1.7    itojun 386BSD 0.1              1992-07-28 [DOC]
    316   1.1       abs 4.4BSD Alpha            1992-07-07
    317   1.7    itojun BSD/386 0.9.3		1992-10-xx [BSDI]
    318   1.7    itojun 				first external gamma; G customers
    319   1.7    itojun BSD/386 0.9.4		1992-12-xx [BSDI]
    320   1.7    itojun 				would have been 1.0 except for request
    321   1.7    itojun 				for preliminary injunction
    322   1.7    itojun BSD/386 1.0 		1993-03-xx [BSDI]
    323   1.7    itojun 				injunction denied; first official release
    324   1.6    itojun NetBSD 0.8              1993-04-20 [NBD]
    325   1.1       abs 4.4BSD                  1993-06-01 [USE]
    326   1.1       abs NetBSD 0.9              1993-08-23 [NBD]
    327   1.8    itojun FreeBSD 1.0		1993-11-01 [FBD]
    328   1.7    itojun BSD/386 1.1		1994-02-xx [BSDI]
    329   1.1       abs 4.4BSD Lite             1994-03-01 [USE]
    330  1.24      soda FreeBSD 1.1		1994-05-07 [FBD]
    331  1.24      soda FreeBSD 1.1.5		1994-06-30 [FBD]
    332  1.24      soda FreeBSD 1.1.5.1		1994-07-05 [FBD]
    333  1.24      soda 				supersedes 1.1.5 5 days after release.
    334   1.6    itojun NetBSD 1.0              1994-10-26 [NBD]
    335   1.1       abs 386BSD 1.0              1994-11-12 [USE]
    336  1.24      soda FreeBSD 2.0		1994-11-23 [FBD]
    337   1.7    itojun BSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
    338   1.7    itojun FreeBSD 2.0.5		1995-06-10 [FBD]
    339   1.7    itojun BSD/OS 2.0.1		1995-06-xx [BSDI]
    340   1.6    itojun 4.4BSD Lite Release 2	1995-06-xx [44B]
    341   1.6    itojun 				the true final distribution from the CSRG
    342   1.7    itojun FreeBSD 2.1.0		1995-11-19 [FBD]
    343   1.1       abs NetBSD 1.1              1995-11-26 [NBD]
    344   1.7    itojun BSD/OS 2.1		1996-01-xx [BSDI]
    345   1.7    itojun FreeBSD 2.1.5		1996-07-14 [FBD]
    346   1.1       abs NetBSD 1.2              1996-10-04 [NBD]
    347   1.1       abs OpenBSD 2.0             1996-10-18 [OBD]
    348   1.7    itojun FreeBSD 2.1.6		1996-11-16 [FBD]
    349   1.7    itojun FreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
    350  1.11    itojun Rhapsody		1997-xx-xx
    351   1.7    itojun FreeBSD 2.1.7		1997-02-20 [FBD]
    352   1.7    itojun BSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
    353   1.7    itojun FreeBSD 2.2.0		1997-03-16 [FBD]
    354   1.7    itojun FreeBSD 2.2.1		1997-03-25 [FBD]
    355   1.7    itojun FreeBSD 2.2.2		1997-05-16 [FBD]
    356   1.6    itojun NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
    357   1.1       abs OpenBSD 2.1             1997-06-01 [OBD]
    358   1.7    itojun FreeBSD 2.2.5		1997-10-22 [FBD]
    359   1.1       abs OpenBSD 2.2             1997-12-01 [OBD]
    360   1.5       abs NetBSD 1.3              1998-01-04 [NBD]
    361   1.7    itojun FreeBSD 2.2.6		1998-03-25 [FBD]
    362   1.6    itojun NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
    363   1.7    itojun BSD/OS 3.1		1998-03-xx [BSDI]
    364   1.1       abs OpenBSD 2.3             1998-05-19 [OBD]
    365   1.6    itojun NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
    366   1.7    itojun FreeBSD 2.2.7		1998-07-22 [FBD]
    367   1.7    itojun BSD/OS 4.0		1998-08-xx [BSDI]
    368   1.7    itojun 				2-lock MP support, ELF executables
    369   1.6    itojun FreeBSD 3.0		1998-10-16 [FBD]
    370   1.7    itojun 				FreeBSD-3.0 is a snapshot from -current,
    371   1.7    itojun 				while 3.1 and 3.2 are from 3.x-stable which
    372   1.6    itojun 				was branched quite some time after 3.0-release
    373   1.1       abs FreeBSD 2.2.8           1998-11-29 [FBD]
    374   1.1       abs OpenBSD 2.4             1998-12-01 [OBD]
    375   1.6    itojun NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
    376   1.6    itojun FreeBSD 3.1		1999-02-15 [FBD]
    377   1.7    itojun BSD/OS 4.0.1		1999-03-xx [BSDI]
    378   1.4       abs NetBSD 1.4              1999-05-12 [NBD]
    379   1.6    itojun FreeBSD 3.2             1999-05-17 [FBD]
    380   1.4       abs OpenBSD 2.5             1999-05-19 [OBD]
    381   1.6    itojun NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
    382   1.6    itojun FreeBSD 3.3             1999-09-17 [FBD]
    383   1.6    itojun OpenBSD 2.6             1999-12-01 [OBD]
    384   1.6    itojun FreeBSD 3.4             1999-12-20 [FBD]
    385   1.7    itojun BSD/OS 4.1		1999-12-xx [BSDI]
    386   1.6    itojun FreeBSD 4.0             2000-03-13 [FBD]
    387   1.6    itojun NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
    388   1.6    itojun OpenBSD 2.7             2000-06-15 [OBD]
    389   1.6    itojun FreeBSD 3.5		2000-06-24 [FBD]
    390   1.6    itojun FreeBSD 4.1		2000-07-27 [FBD]
    391   1.6    itojun FreeBSD 3.5.1		2000-07-28 [FBD]
    392   1.6    itojun FreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
    393   1.7    itojun FreeBSD 4.2  		2000-11-21 [FBD]
    394   1.7    itojun NetBSD 1.4.3		2000-11-25 [NBD] (patch release)
    395   1.7    itojun BSD/OS 4.2		2000-11-29 [BSDI]
    396   1.7    itojun OpenBSD 2.8		2000-12-01 [OBD]
    397   1.7    itojun NetBSD 1.5              2000-12-06 [NBD]
    398  1.11    itojun Mac OS X 10.0           2001-03-24 [APL]
    399   1.8    itojun FreeBSD 4.3  		2001-04-20 [FBD]
    400   1.8    itojun OpenBSD 2.9  		2001-06-01 [OBD]
    401  1.11    itojun NetBSD 1.5.1		2001-07-11 [NBD] (patch release)
    402  1.11    itojun NetBSD 1.5.2		2001-09-13 [NBD] (patch release)
    403  1.11    itojun FreeBSD 4.4  		2001-09-18 [FBD]
    404  1.17  junyoung Mac OS X 10.1		2001-09-29 [APL]
    405  1.13  junyoung OpenBSD 3.0		2001-12-01 [OBD]
    406  1.13  junyoung FreeBSD 4.5  		2002-01-29 [FBD]
    407  1.17  junyoung BSD/OS 4.3		2002-03-14 [WRS]
    408  1.17  junyoung OpenBSD 3.1		2002-05-19 [OBD]
    409  1.17  junyoung FreeBSD 4.6  		2002-06-15 [FBD]
    410  1.14  junyoung NetBSD 1.5.3		2002-07-22 [NBD] (patch release)
    411  1.17  junyoung FreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
    412  1.17  junyoung Mac OS X 10.2		2002-08-23 [APL]
    413  1.17  junyoung NetBSD 1.6		2002-09-14 [NBD]
    414  1.17  junyoung FreeBSD 4.7		2002-10-08 [FBD]
    415  1.19       wiz OpenBSD 3.2		2002-11-01 [OBD]
    416  1.20    itojun FreeBSD 5.0		2003-01-17 [FBD]
    417  1.20    itojun 				FreeBSD 5.0 is a separate branch off of
    418  1.20    itojun 				-current, similar to 3.0.
    419  1.20    itojun FreeBSD 4.8		2003-04-03 [FBD]
    420  1.20    itojun NetBSD 1.6.1		2003-04-21 [NBD] (patch release)
    421  1.20    itojun OpenBSD 3.3		2003-05-01 [OBD]
    422  1.21      cjep BSD/OS 5.0		2003-05-?? [WRS]
    423  1.21      cjep FreeBSD 5.1		2003-06-09 [FBD]
    424  1.23     peter Mac OS X 10.3		2003-10-24 [APL]
    425  1.23     peter FreeBSD 4.9		2003-10-28 [FBD]
    426  1.23     peter BSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
    427  1.23     peter OpenBSD 3.4		2003-11-01 [OBD]
    428  1.23     peter FreeBSD 5.2		2004-01-12 [FBD]
    429  1.23     peter FreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
    430  1.23     peter NetBSD 1.6.2		2004-03-01 [NBD] (patch release)
    431  1.23     peter OpenBSD 3.5		2004-04-01 [OBD]
    432  1.23     peter FreeBSD 4.10		2004-05-27 [FBD]
    433  1.24      soda DragonFly 1.0		2004-07-12 [DFB]
    434  1.23     peter OpenBSD 3.6		2004-10-29 [OBD]
    435  1.23     peter FreeBSD 5.3		2004-11-06 [FBD]
    436  1.23     peter NetBSD 2.0		2004-12-09 [NBD]
    437  1.23     peter FreeBSD 4.11		2005-01-25 [FBD]
    438  1.24      soda DragonFly 1.2.0		2005-04-08 [DFB]
    439  1.26      soda NetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
    440  1.24      soda Mac OS X 10.4		2005-04-29 [APL]
    441  1.24      soda FreeBSD 5.4		2005-05-09 [FBD]
    442  1.24      soda OpenBSD 3.7		2005-05-19 [OBD]
    443  1.28    rpaulo NetBSD 2.0.3		2005-10-31 [NBD] (security/critical release)
    444  1.27    rpaulo OpenBSD 3.8		2005-11-01 [OBD]
    445  1.29    rpaulo FreeBSD 6.0		2005-11-01 [FBD]
    446  1.28    rpaulo NetBSD 2.1		2005-11-02 [NBD]
    447  1.30    rpaulo NetBSD 3.0		2005-12-23 [NBD]
    448  1.30    rpaulo DragonFly 1.4.0		2006-01-08 [DFB]
    449  1.34    rpaulo OpenBSD 3.9		2006-05-01 [OBD]
    450  1.35    rpaulo FreeBSD 6.1		2006-05-08 [FBD]
    451  1.35    rpaulo FreeBSD 5.5		2006-05-25 [FBD]
    452  1.36    rpaulo NetBSD 3.0.1		2006-07-24 [NBD] (security/critical release)
    453  1.36    rpaulo DragonFly 1.6		2006-07-24 [DFB]
    454   1.1       abs 
    455   1.1       abs Bibliography
    456   1.1       abs ------------------------
    457   1.1       abs 
    458   1.1       abs Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
    459   1.1       abs Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
    460   1.1       abs System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
    461   1.1       abs 
    462   1.1       abs Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
    463   1.1       abs Company, Inc., 1994. ISBN 0-201-54777-5
    464   1.1       abs 
    465   1.1       abs McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
    466   1.1       abs Quarterman. The Design and Implementation of the 4.4BSD Operating
    467   1.1       abs System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
    468   1.1       abs 
    469  1.23     peter McKusick, Marshall Kirk, George Neville-Neil. The Design and
    470  1.23     peter Implementation of the FreeBSD Operating System.
    471  1.23     peter Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
    472  1.23     peter 
    473   1.1       abs Doug McIlroy. Research Unix Reader.
    474   1.1       abs 
    475   1.1       abs Michael G. Brown. The Role of BSD in the Development of Unix.
    476   1.1       abs Presented to the Tasmanian Unix Special Interest Group of the
    477   1.1       abs Australian Computer Society, Hobart, August 1993.
    478   1.1       abs 
    479   1.6    itojun Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
    480  1.24      soda URL: http://www.byte.com/art/9410/sec8/art3.htm
    481   1.1       abs 
    482  1.19       wiz Andreas Klemm, Lars Kller. If you're going to San Francisco ...
    483   1.1       abs Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
    484   1.1       abs 
    485   1.1       abs BSD Release Announcements collection.
    486   1.6    itojun URL: http://www.de.FreeBSD.org/de/ftp/releases/
    487   1.1       abs 
    488   1.1       abs BSD Hypertext Man Pages
    489   1.9    itojun URL: http://www.FreeBSD.org/cgi/man.cgi
    490   1.6    itojun 
    491   1.6    itojun UNIX history graphing project
    492   1.9    itojun URL: http://minnie.tuhs.org/Unix_History/index.html
    493   1.6    itojun 
    494   1.6    itojun UNIX history
    495  1.17  junyoung URL: http://www.levenez.com/unix/
    496   1.1       abs 
    497   1.8    itojun James Howard: The BSD Family Tree
    498  1.32    rpaulo URL: http://ezine.daemonnews.org/200104/bsd_family.html
    499   1.8    itojun ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
    500   1.8    itojun 
    501   1.8    itojun 
    502   1.1       abs Acknowledgments
    503   1.1       abs ---------------
    504   1.1       abs 
    505   1.6    itojun Josh Gilliam for suggestions, bug fixes, and finding very old
    506   1.1       abs original BSD announcements from Usenet or tapes.
    507   1.1       abs 
    508   1.1       abs Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
    509   1.1       abs 
    510   1.1       abs --
    511  1.23     peter Copyright (c) 1997-2004 Wolfram Schneider <wosch (a] FreeBSD.ORG>
    512  1.22    itojun URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
    513   1.1       abs 
    514  1.35    rpaulo $FreeBSD: src/share/misc/bsd-family-tree,v 1.105 2006/05/26 13:19:46 maxim Exp $
    515