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bsd-family-tree revision 1.39
      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  1.38    rpaulo  |     |     |        |      | |  |            |                 DragonFly 1.4.0
    202  1.38    rpaulo  |     |     |        |      | |  |        OpenBSD 3.9                 |
    203  1.38    rpaulo  |  FreeBSD  |        |      | |  |            |                       |
    204  1.38    rpaulo  |    6.1    |        |      | |  |            |                       |
    205  1.38    rpaulo  |     |  FreeBSD 5.5 |      | |  |            |                       |
    206  1.38    rpaulo  |     |              |      | | NetBSD 3.0.1  |                 DragonFly 1.6.0
    207  1.38    rpaulo  |     |              |      | |  |            |                       |
    208  1.39    rpaulo  |     |              |      | |  |        OpenBSD 4.0                 |
    209  1.39    rpaulo  |     |              |      | | NetBSD 3.0.2  |                       |
    210  1.39    rpaulo  |     |              |      | NetBSD 3.1      |                       |
    211  1.39    rpaulo  | FreeBSD 6.2        |      |                 |                       |
    212  1.39    rpaulo  |     |              |      |                 |                 DragonFly 1.8.0
    213  1.39    rpaulo  |     V              |      |                 |                       |
    214  1.29    rpaulo FreeBSD 7 -current    |  NetBSD -current  OpenBSD -current             |
    215  1.23     peter  |                    |      |                 |                       |
    216  1.23     peter  v                    v      v                 v                       v
    217   1.1       abs 
    218   1.1       abs Time
    219   1.1       abs ----------------
    220   1.1       abs 
    221   1.7    itojun Time tolerance +/- 6 months, depending on which book/article you read; if it
    222   1.7    itojun was the announcement in Usenet or if it was available as tape.
    223   1.1       abs 
    224   1.1       abs [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
    225   1.1       abs 	and John Quarterman. The Design and Implementation of
    226   1.1       abs 	the 4.4BSD Operating System.
    227  1.11    itojun [APL] Apple website [http://www.apple.com/macosx/]
    228  1.17  junyoung [BSDI] Berkeley Software Design, Inc.
    229  1.24      soda [DFB] DragonFlyBSD Project, The.
    230   1.1       abs [DOC] README, COPYRIGHT on tape.
    231  1.17  junyoung [FBD] FreeBSD Project, The.
    232   1.1       abs [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
    233   1.1       abs 	Volume 11, Info 4, April, 1987.
    234   1.1       abs [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
    235   1.1       abs 	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
    236  1.17  junyoung [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
    237  1.17  junyoung 	Changes in the Kernel in 2.9BSD. Second Berkeley Software
    238  1.17  junyoung 	Distribution UNIX Version 2.9, July, 1983.
    239   1.1       abs [NBD] NetBSD Project, The.
    240   1.1       abs [OBD] OpenBSD Project, The.
    241  1.17  junyoung [QCU] Salus, Peter H. A quarter century of UNIX.
    242  1.17  junyoung [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
    243  1.17  junyoung [USE] Usenet announcement.
    244  1.17  junyoung [WRS] Wind River Systems, Inc.
    245   1.1       abs [dmr] Dennis Ritchie, via E-Mail
    246   1.1       abs 
    247   1.1       abs Multics                 1965
    248   1.6    itojun UNIX                    Summer 1969
    249   1.1       abs 				DEC PDP-7
    250   1.1       abs First   Edition         1971-11-03 [QCU]
    251   1.1       abs 				DEC PDP-11/20, Assembler
    252   1.1       abs Second  Edition         1972-06-12 [QCU]
    253   1.6    itojun 				10 UNIX installations
    254   1.1       abs Third   Edition         1973-02-xx [QCU]
    255   1.1       abs 				Pipes, 16 installations
    256   1.1       abs Fourth  Edition         1973-11-xx [QCU]
    257   1.1       abs 				rewriting in C effected,
    258   1.1       abs                                 above 30 installations
    259   1.1       abs Fifth   Edition         1974-06-xx [QCU]
    260   1.1       abs 				above 50 installations
    261   1.1       abs Sixth   Edition         1975-05-xx [QCU]
    262   1.1       abs 				port to DEC Vax
    263   1.1       abs Seventh Edition         1979-01-xx [QCU]
    264   1.6    itojun 				first portable UNIX
    265   1.6    itojun Eighth  Edition         1985-02-xx [QCU]
    266   1.1       abs 				VAX 11/750, VAX 11/780 [dmr]
    267   1.1       abs 				descended from 4.1c BSD [dmr]
    268   1.1       abs 				descended from 4.1 BSD [44B]
    269   1.7    itojun 			scooping-out and replacement of the character-device
    270   1.1       abs 			and networking part by the streams mechanism
    271   1.1       abs 
    272   1.1       abs Ninth   Edition         1986-09-xx [QCU]
    273   1.1       abs Tenth   Edition         1989-10-xx [QCU]
    274   1.1       abs 
    275   1.1       abs 1BSD                    late 1977
    276   1.1       abs 			1978-03-09 [QCU]
    277   1.1       abs 				PDP-11, Pascal, ex(1)
    278   1.1       abs 				30 free copies of 1BSD sent out
    279   1.1       abs 				35 tapes sold for 50 USD [QCU]
    280   1.1       abs 2BSD                    mid 1978 [QCU]
    281   1.1       abs 				75 2BSD tapes shipped
    282   1.1       abs 2.7.9BSD		?? [SMS]
    283   1.1       abs 2.8BSD			1981-07-xx [KSJ]
    284   1.1       abs 
    285   1.1       abs 2.8.1BSD		1982-01-xx [QCU]
    286   1.1       abs 				set of performance improvements
    287   1.1       abs 2.9BSD			1983-07-xx [KSJ]
    288   1.1       abs 2.9.1BSD                1983-11-xx
    289   1.1       abs 2.9BSD-Seismo		1985-08-xx [SMS]
    290   1.1       abs 2.10BSD			1987-04-xx [KKK]
    291   1.1       abs 2.10.1BSD		1989-01-xx [SMS]
    292   1.1       abs 2.11BSD			1992-02-xx [SMS]
    293   1.6    itojun 2.11BSD rev #430	1999-12-13 [SMS]
    294   1.1       abs 
    295   1.1       abs 32V			1978-1[01]-xx [QCU]
    296   1.1       abs 3BSD                    late 1979 [QCU]
    297   1.1       abs 				virtual memory, page replacement,
    298   1.1       abs                         	demand paging
    299   1.1       abs 4.0BSD                  1980-10-xx
    300  1.13  junyoung 4.1BSD                  1981-07-08 [DOC]
    301   1.1       abs 4.1aBSD                 1982-04-xx
    302   1.1       abs 				alpha release, 100 sites, networking [44B]
    303   1.1       abs 4.1bBSD				internal release, fast filesystem [44B]
    304   1.1       abs 4.1cBSD                 late 1982
    305   1.1       abs 				beta release, IPC [44B]
    306   1.1       abs 4.2BSD                  1983-09-xx [QCU]
    307  1.13  junyoung                         1983-08-03 [DOC]
    308   1.1       abs 4.3BSD                  1986-06-xx [QCU]
    309  1.13  junyoung 			1986-04-05 [KB], [DOC]
    310  1.13  junyoung 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
    311   1.1       abs 4.3BSD NET/1            1988-11-xx [QCU]
    312  1.13  junyoung                         1989-01-01 [DOC]
    313  1.13  junyoung 4.3BSD Reno             1990-06-29 [QCU], [DOC]
    314  1.13  junyoung 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
    315   1.7    itojun 
    316   1.7    itojun BSD/386 ALPHA		1991-12-xx [BSDI]
    317   1.7    itojun 				first code released to people outside BSDI
    318   1.1       abs 386BSD 0.0              1992-02-xx [DOC]
    319   1.7    itojun BSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
    320   1.7    itojun BSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
    321   1.7    itojun 386BSD 0.1              1992-07-28 [DOC]
    322   1.1       abs 4.4BSD Alpha            1992-07-07
    323   1.7    itojun BSD/386 0.9.3		1992-10-xx [BSDI]
    324   1.7    itojun 				first external gamma; G customers
    325   1.7    itojun BSD/386 0.9.4		1992-12-xx [BSDI]
    326   1.7    itojun 				would have been 1.0 except for request
    327   1.7    itojun 				for preliminary injunction
    328   1.7    itojun BSD/386 1.0 		1993-03-xx [BSDI]
    329   1.7    itojun 				injunction denied; first official release
    330   1.6    itojun NetBSD 0.8              1993-04-20 [NBD]
    331   1.1       abs 4.4BSD                  1993-06-01 [USE]
    332   1.1       abs NetBSD 0.9              1993-08-23 [NBD]
    333   1.8    itojun FreeBSD 1.0		1993-11-01 [FBD]
    334   1.7    itojun BSD/386 1.1		1994-02-xx [BSDI]
    335   1.1       abs 4.4BSD Lite             1994-03-01 [USE]
    336  1.24      soda FreeBSD 1.1		1994-05-07 [FBD]
    337  1.24      soda FreeBSD 1.1.5		1994-06-30 [FBD]
    338  1.24      soda FreeBSD 1.1.5.1		1994-07-05 [FBD]
    339  1.24      soda 				supersedes 1.1.5 5 days after release.
    340   1.6    itojun NetBSD 1.0              1994-10-26 [NBD]
    341   1.1       abs 386BSD 1.0              1994-11-12 [USE]
    342  1.24      soda FreeBSD 2.0		1994-11-23 [FBD]
    343   1.7    itojun BSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
    344   1.7    itojun FreeBSD 2.0.5		1995-06-10 [FBD]
    345   1.7    itojun BSD/OS 2.0.1		1995-06-xx [BSDI]
    346   1.6    itojun 4.4BSD Lite Release 2	1995-06-xx [44B]
    347   1.6    itojun 				the true final distribution from the CSRG
    348   1.7    itojun FreeBSD 2.1.0		1995-11-19 [FBD]
    349   1.1       abs NetBSD 1.1              1995-11-26 [NBD]
    350   1.7    itojun BSD/OS 2.1		1996-01-xx [BSDI]
    351   1.7    itojun FreeBSD 2.1.5		1996-07-14 [FBD]
    352   1.1       abs NetBSD 1.2              1996-10-04 [NBD]
    353   1.1       abs OpenBSD 2.0             1996-10-18 [OBD]
    354   1.7    itojun FreeBSD 2.1.6		1996-11-16 [FBD]
    355   1.7    itojun FreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
    356  1.11    itojun Rhapsody		1997-xx-xx
    357   1.7    itojun FreeBSD 2.1.7		1997-02-20 [FBD]
    358   1.7    itojun BSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
    359   1.7    itojun FreeBSD 2.2.0		1997-03-16 [FBD]
    360   1.7    itojun FreeBSD 2.2.1		1997-03-25 [FBD]
    361   1.7    itojun FreeBSD 2.2.2		1997-05-16 [FBD]
    362   1.6    itojun NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
    363   1.1       abs OpenBSD 2.1             1997-06-01 [OBD]
    364   1.7    itojun FreeBSD 2.2.5		1997-10-22 [FBD]
    365   1.1       abs OpenBSD 2.2             1997-12-01 [OBD]
    366   1.5       abs NetBSD 1.3              1998-01-04 [NBD]
    367   1.7    itojun FreeBSD 2.2.6		1998-03-25 [FBD]
    368   1.6    itojun NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
    369   1.7    itojun BSD/OS 3.1		1998-03-xx [BSDI]
    370   1.1       abs OpenBSD 2.3             1998-05-19 [OBD]
    371   1.6    itojun NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
    372   1.7    itojun FreeBSD 2.2.7		1998-07-22 [FBD]
    373   1.7    itojun BSD/OS 4.0		1998-08-xx [BSDI]
    374   1.7    itojun 				2-lock MP support, ELF executables
    375   1.6    itojun FreeBSD 3.0		1998-10-16 [FBD]
    376   1.7    itojun 				FreeBSD-3.0 is a snapshot from -current,
    377   1.7    itojun 				while 3.1 and 3.2 are from 3.x-stable which
    378   1.6    itojun 				was branched quite some time after 3.0-release
    379   1.1       abs FreeBSD 2.2.8           1998-11-29 [FBD]
    380   1.1       abs OpenBSD 2.4             1998-12-01 [OBD]
    381   1.6    itojun NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
    382   1.6    itojun FreeBSD 3.1		1999-02-15 [FBD]
    383   1.7    itojun BSD/OS 4.0.1		1999-03-xx [BSDI]
    384   1.4       abs NetBSD 1.4              1999-05-12 [NBD]
    385   1.6    itojun FreeBSD 3.2             1999-05-17 [FBD]
    386   1.4       abs OpenBSD 2.5             1999-05-19 [OBD]
    387   1.6    itojun NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
    388   1.6    itojun FreeBSD 3.3             1999-09-17 [FBD]
    389   1.6    itojun OpenBSD 2.6             1999-12-01 [OBD]
    390   1.6    itojun FreeBSD 3.4             1999-12-20 [FBD]
    391   1.7    itojun BSD/OS 4.1		1999-12-xx [BSDI]
    392   1.6    itojun FreeBSD 4.0             2000-03-13 [FBD]
    393   1.6    itojun NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
    394   1.6    itojun OpenBSD 2.7             2000-06-15 [OBD]
    395   1.6    itojun FreeBSD 3.5		2000-06-24 [FBD]
    396   1.6    itojun FreeBSD 4.1		2000-07-27 [FBD]
    397   1.6    itojun FreeBSD 3.5.1		2000-07-28 [FBD]
    398   1.6    itojun FreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
    399   1.7    itojun FreeBSD 4.2  		2000-11-21 [FBD]
    400   1.7    itojun NetBSD 1.4.3		2000-11-25 [NBD] (patch release)
    401   1.7    itojun BSD/OS 4.2		2000-11-29 [BSDI]
    402   1.7    itojun OpenBSD 2.8		2000-12-01 [OBD]
    403   1.7    itojun NetBSD 1.5              2000-12-06 [NBD]
    404  1.11    itojun Mac OS X 10.0           2001-03-24 [APL]
    405   1.8    itojun FreeBSD 4.3  		2001-04-20 [FBD]
    406   1.8    itojun OpenBSD 2.9  		2001-06-01 [OBD]
    407  1.11    itojun NetBSD 1.5.1		2001-07-11 [NBD] (patch release)
    408  1.11    itojun NetBSD 1.5.2		2001-09-13 [NBD] (patch release)
    409  1.11    itojun FreeBSD 4.4  		2001-09-18 [FBD]
    410  1.17  junyoung Mac OS X 10.1		2001-09-29 [APL]
    411  1.13  junyoung OpenBSD 3.0		2001-12-01 [OBD]
    412  1.13  junyoung FreeBSD 4.5  		2002-01-29 [FBD]
    413  1.17  junyoung BSD/OS 4.3		2002-03-14 [WRS]
    414  1.17  junyoung OpenBSD 3.1		2002-05-19 [OBD]
    415  1.17  junyoung FreeBSD 4.6  		2002-06-15 [FBD]
    416  1.14  junyoung NetBSD 1.5.3		2002-07-22 [NBD] (patch release)
    417  1.17  junyoung FreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
    418  1.17  junyoung Mac OS X 10.2		2002-08-23 [APL]
    419  1.17  junyoung NetBSD 1.6		2002-09-14 [NBD]
    420  1.17  junyoung FreeBSD 4.7		2002-10-08 [FBD]
    421  1.19       wiz OpenBSD 3.2		2002-11-01 [OBD]
    422  1.20    itojun FreeBSD 5.0		2003-01-17 [FBD]
    423  1.20    itojun 				FreeBSD 5.0 is a separate branch off of
    424  1.20    itojun 				-current, similar to 3.0.
    425  1.20    itojun FreeBSD 4.8		2003-04-03 [FBD]
    426  1.20    itojun NetBSD 1.6.1		2003-04-21 [NBD] (patch release)
    427  1.20    itojun OpenBSD 3.3		2003-05-01 [OBD]
    428  1.21      cjep BSD/OS 5.0		2003-05-?? [WRS]
    429  1.21      cjep FreeBSD 5.1		2003-06-09 [FBD]
    430  1.23     peter Mac OS X 10.3		2003-10-24 [APL]
    431  1.23     peter FreeBSD 4.9		2003-10-28 [FBD]
    432  1.23     peter BSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
    433  1.23     peter OpenBSD 3.4		2003-11-01 [OBD]
    434  1.23     peter FreeBSD 5.2		2004-01-12 [FBD]
    435  1.23     peter FreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
    436  1.23     peter NetBSD 1.6.2		2004-03-01 [NBD] (patch release)
    437  1.23     peter OpenBSD 3.5		2004-04-01 [OBD]
    438  1.23     peter FreeBSD 4.10		2004-05-27 [FBD]
    439  1.24      soda DragonFly 1.0		2004-07-12 [DFB]
    440  1.23     peter OpenBSD 3.6		2004-10-29 [OBD]
    441  1.23     peter FreeBSD 5.3		2004-11-06 [FBD]
    442  1.23     peter NetBSD 2.0		2004-12-09 [NBD]
    443  1.23     peter FreeBSD 4.11		2005-01-25 [FBD]
    444  1.24      soda DragonFly 1.2.0		2005-04-08 [DFB]
    445  1.26      soda NetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
    446  1.24      soda Mac OS X 10.4		2005-04-29 [APL]
    447  1.24      soda FreeBSD 5.4		2005-05-09 [FBD]
    448  1.24      soda OpenBSD 3.7		2005-05-19 [OBD]
    449  1.28    rpaulo NetBSD 2.0.3		2005-10-31 [NBD] (security/critical release)
    450  1.27    rpaulo OpenBSD 3.8		2005-11-01 [OBD]
    451  1.29    rpaulo FreeBSD 6.0		2005-11-01 [FBD]
    452  1.28    rpaulo NetBSD 2.1		2005-11-02 [NBD]
    453  1.30    rpaulo NetBSD 3.0		2005-12-23 [NBD]
    454  1.30    rpaulo DragonFly 1.4.0		2006-01-08 [DFB]
    455  1.34    rpaulo OpenBSD 3.9		2006-05-01 [OBD]
    456  1.35    rpaulo FreeBSD 6.1		2006-05-08 [FBD]
    457  1.35    rpaulo FreeBSD 5.5		2006-05-25 [FBD]
    458  1.36    rpaulo NetBSD 3.0.1		2006-07-24 [NBD] (security/critical release)
    459  1.37    rpaulo DragonFly 1.6.0		2006-07-24 [DFB]
    460  1.38    rpaulo OpenBSD 4.0		2006-11-01 [OBD]
    461  1.38    rpaulo NetBSD 3.0.2		2006-11-04 [NBD] (security/critical release)
    462  1.38    rpaulo NetBSD 3.1		2006-11-04 [NBD]
    463  1.39    rpaulo FreeBSD 6.2		2007-01-15 [FBD]
    464  1.39    rpaulo DragonFly 1.8.0		2007-01-30 [DFB]
    465   1.1       abs 
    466   1.1       abs Bibliography
    467   1.1       abs ------------------------
    468   1.1       abs 
    469   1.1       abs Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
    470   1.1       abs Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
    471   1.1       abs System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
    472   1.1       abs 
    473   1.1       abs Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
    474   1.1       abs Company, Inc., 1994. ISBN 0-201-54777-5
    475   1.1       abs 
    476   1.1       abs McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
    477   1.1       abs Quarterman. The Design and Implementation of the 4.4BSD Operating
    478   1.1       abs System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
    479   1.1       abs 
    480  1.23     peter McKusick, Marshall Kirk, George Neville-Neil. The Design and
    481  1.23     peter Implementation of the FreeBSD Operating System.
    482  1.23     peter Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
    483  1.23     peter 
    484   1.1       abs Doug McIlroy. Research Unix Reader.
    485   1.1       abs 
    486   1.1       abs Michael G. Brown. The Role of BSD in the Development of Unix.
    487   1.1       abs Presented to the Tasmanian Unix Special Interest Group of the
    488   1.1       abs Australian Computer Society, Hobart, August 1993.
    489   1.1       abs 
    490   1.6    itojun Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
    491  1.24      soda URL: http://www.byte.com/art/9410/sec8/art3.htm
    492   1.1       abs 
    493  1.19       wiz Andreas Klemm, Lars Kller. If you're going to San Francisco ...
    494   1.1       abs Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
    495   1.1       abs 
    496   1.1       abs BSD Release Announcements collection.
    497   1.6    itojun URL: http://www.de.FreeBSD.org/de/ftp/releases/
    498   1.1       abs 
    499   1.1       abs BSD Hypertext Man Pages
    500   1.9    itojun URL: http://www.FreeBSD.org/cgi/man.cgi
    501   1.6    itojun 
    502   1.6    itojun UNIX history graphing project
    503   1.9    itojun URL: http://minnie.tuhs.org/Unix_History/index.html
    504   1.6    itojun 
    505   1.6    itojun UNIX history
    506  1.17  junyoung URL: http://www.levenez.com/unix/
    507   1.1       abs 
    508   1.8    itojun James Howard: The BSD Family Tree
    509  1.32    rpaulo URL: http://ezine.daemonnews.org/200104/bsd_family.html
    510   1.8    itojun ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
    511   1.8    itojun 
    512   1.8    itojun 
    513   1.1       abs Acknowledgments
    514   1.1       abs ---------------
    515   1.1       abs 
    516   1.6    itojun Josh Gilliam for suggestions, bug fixes, and finding very old
    517   1.1       abs original BSD announcements from Usenet or tapes.
    518   1.1       abs 
    519   1.1       abs Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
    520   1.1       abs 
    521   1.1       abs --
    522  1.39    rpaulo Copyright (c) 1997-2007 Wolfram Schneider <wosch (a] FreeBSD.ORG>
    523  1.22    itojun URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
    524   1.1       abs 
    525  1.39    rpaulo $FreeBSD: /repoman/r/ncvs/src/share/misc/bsd-family-tree,v 1.111 2007/01/31 04:58:03 maxim Exp $
    526