share/misc/bsd-family-tree

   1 The UNIX system family tree: Research and BSD
   2 ---------------------------------------------
   3
   4 First Edition (V1)
   5      |
   6 Second Edition (V2)
   7      |
   8 Third Edition (V3)
   9      |
  10 Fourth Edition (V4)
  11      |
  12 Fifth Edition (V5)
  13      |
  14 Sixth Edition (V6) -----*
  15        \                |
  16         \               |
  17          \              |
  18 Seventh Edition (V7)    |
  19             \           |
  20              \        1BSD
  21              32V        |
  22                \      2BSD---------------*
  23                 \    /                   |
  24                  \  /                    |
  25                   \/                     |
  26                  3BSD                    |
  27                   |                      |
  28                4.0BSD               2.7.9BSD
  29                   |                      |
  30                4.1BSD --------------> 2.8BSD
  31                   |                      |
  32               4.1aBSD -----------\       |
  33                   |                \     |
  34               4.1bBSD                \   |
  35                   |                    \ |
  36       *------ 4.1cBSD --------------> 2.9BSD
  37      /            |                      |
  38 Eighth Edition    |                   2.9BSD-Seismo
  39      |            |                      |
  40      +----<--- 4.2BSD               2.9.1BSD
  41      |            |                      |
  42      +----<--- 4.3BSD -------------> 2.10BSD
  43      |            |               /      |
  44 Ninth Edition     |              / 2.10.1BSD
  45      |         4.3BSD Tahoe-----+        |
  46      |            |              \       |
  47      |            |                \     |
  48      v            |                  2.11BSD
  49 Tenth Edition     |                      |
  50                   |                  2.11BSD rev #430
  51                4.3BSD NET/1              |
  52                   |                      v
  53                4.3BSD Reno
  54                   |
  55    *---------- 4.3BSD NET/2 -------------------+-------------*
  56    |                    |                      |             |
  57 386BSD 0.0              |                      |           BSD/386 ALPHA
  58    |                    |                      |             |
  59 386BSD 0.1 ------------>+                      |           BSD/386 0.3.[13]
  60    |     \              |                  4.4BSD Alpha      |
  61    |     386BSD 1.0     |                      |           BSD/386 0.9.[34]
  62    |                    |                  4.4BSD            |
  63    |                    |                    / |             |
  64    |                    |   4.4BSD-Encumbered  |             |
  65    |                 NetBSD 0.8                |           BSD/386 1.0
  66    |                    |                      |             |
  67 FreeBSD 1.0          NetBSD 0.9                |           BSD/386 1.1
  68    |                    |           .----- 4.4BSD Lite       |
  69 FreeBSD 1.1             |          /   /       |     \       |
  70    |                    |         /   /        |      \      |
  71 FreeBSD 1.1.5       .---|--------'   /         |       \     |
  72    |               /    |           /          |        \    |
  73 FreeBSD 1.1.5.1   /     |          /           |         \   |
  74    |             /   NetBSD 1.0 <-'            |          \  |
  75    |            /       |                      |           \ |
  76 FreeBSD 2.0 <--'        |                      |           BSD/OS 2.0
  77    |                     \                     |             |
  78 FreeBSD 2.0.5             \                    |           BSD/OS 2.0.1
  79    |                 .-----\------------- 4.4BSD Lite2       |
  80    |                 |      \             |  |   |   |       |
  81    |                 | .-----|------Rhapsody |   |   |       |
  82    |                 | |     |        NetBSD 1.3 |   |       |
  83    |                 | |     |           OpenBSD 2.3 |       |
  84    |                 | |     |                BSD/OS 3.0     |
  85 FreeBSD 2.1          | |     |                               |
  86  |   |               | |  NetBSD 1.1 ------.               BSD/OS 2.1
  87  | FreeBSD 2.1.5     | |     |              \                |
  88  |     |             | |  NetBSD 1.2         \             BSD/OS 3.0
  89  | FreeBSD 2.1.6     | |     |  \          OpenBSD 2.0       |
  90  |     |             | |     |   \             |             |
  91  | FreeBSD 2.1.6.1   | |     |    \            |             |
  92  |     |             | |     |     \           |             |
  93  | FreeBSD 2.1.7     | |     |      |          |             |
  94  |     |             | |     |  NetBSD 1.2.1   |             |
  95  | FreeBSD 2.1.7.1   | |     |                 |             |
  96  |                   | |     |                 |             |
  97  |                   | |     |                 |             |
  98  *-FreeBSD 2.2       | |     |                 |             |
  99  |        \          | |     |                 |             |
 100  |     FreeBSD 2.2.1 | |     |                 |             |
 101  |         |         | |     |                 |             |
 102  |     FreeBSD 2.2.2 | |     |             OpenBSD 2.1       |
 103  |         |         | |     |                 |             |
 104  |     FreeBSD 2.2.5 | |     |                 |             |
 105  |         |         | |     |             OpenBSD 2.2       |
 106  |         |         | |  NetBSD 1.3           |             |
 107  |     FreeBSD 2.2.6 | |     |    |            |             |
 108  |         |         | |     | NetBSD 1.3.1    |           BSD/OS 3.1
 109  |         |         | |     |    |        OpenBSD 2.3       |
 110  |         |         | |     | NetBSD 1.3.2    |             |
 111  |     FreeBSD 2.2.7 | |     |    |            |             |
 112  |         |         | |     |    |            |           BSD/OS 4.0
 113  |         v         | |     |    |            |             |
 114  |     FreeBSD 2.2.8 | |     |    |            |             |
 115  |                   | |     |    |        OpenBSD 2.4       |
 116 FreeBSD 3.0 <--------* |     |    v            |             |
 117  |                     |     | NetBSD 1.3.3    |             |
 118  *---FreeBSD 3.1       |     |                 |             |
 119  |       |             |     |                 |           BSD/OS 4.0.1
 120  |   FreeBSD 3.2----*  |  NetBSD 1.4       OpenBSD 2.5       |
 121  |       |          |  |  |  |    |            |             |
 122  |       |          |  |  |  |    |            |             |
 123  |       |          |  |  |  |    |            |             |
 124  |   FreeBSD 3.3    |  |  |  | NetBSD 1.4.1    |             |
 125  |       |          |  |  |  |    |        OpenBSD 2.6       |
 126  |   FreeBSD 3.4    |  |  |  |    |            |             |
 127  |           |      |  |  |  |    |            |           BSD/OS 4.1
 128 FreeBSD 4.0  |      |  |  |  | NetBSD 1.4.2    |             |
 129  |           |      |  |  |  |    |            |             |
 130  |           |      |  |  |  |    |            |             |
 131  |   FreeBSD 3.5    |  |  |  |    |        OpenBSD 2.7       |
 132  |           |      |  |  |  |    |            |             |
 133  |   FreeBSD 3.5.1  |  |  |  |    |            |             |
 134  |                  |  |  |  |    |            |             |
 135  *---FreeBSD 4.1    |  |  |  |    |            |             |
 136  |      |           |  | (?) |    |            |             |
 137  |   FreeBSD 4.1.1  |  |  /  |    |            |             |
 138  |      |           |  | /   |    |            |             |
 139  |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
 140  |      |         Mac OS X   |             OpenBSD 2.8     BSD/OS 4.2
 141  |      |             |      |                 |             |
 142  |      |             |      |                 |             |
 143  |      |           10.0  NetBSD 1.5           |             |
 144  |   FreeBSD 4.3      |      |    |            |             |
 145  |      |             |      |    |        OpenBSD 2.9       |
 146  |      |             |      | NetBSD 1.5.1    |             |
 147  |      |             |      |    |            |             |
 148  |   FreeBSD 4.4-.    |      | NetBSD 1.5.2    |             |
 149  |      |        | Mac OS X  |    |            |             |
 150  |      |        |   10.1    |    |        OpenBSD 3.0       |
 151  |   FreeBSD 4.5 |    |      |    |            |             |
 152  |      |         \   |      |    |            |           BSD/OS 4.3
 153  |   FreeBSD 4.6   \  |      |    |        OpenBSD 3.1       |
 154  |      |           \ |      | NetBSD 1.5.3    |             |
 155  |   FreeBSD 4.6.2 Mac OS X  |                 |             |
 156  |      |            10.2    |                 |             |
 157  |   FreeBSD 4.7      |      |                 |             |
 158  |      |             |   NetBSD 1.6       OpenBSD 3.2       |
 159  |   FreeBSD 4.8      |      |    |            |             |
 160  |      |             |      | NetBSD 1.6.1    |             |
 161  |      |--------.    |      |    |        OpenBSD 3.3     BSD/OS 5.0
 162  |      |         \   |      |    |            |             |
 163  |   FreeBSD 4.9   |  |      |    |        OpenBSD 3.4     BSD/OS 5.1 ISE
 164  |      |          |  |      |    |            |
 165  |      |          |  |      | NetBSD 1.6.2    |
 166  |      |          |  |      |    |            |
 167  |      |          |  |      |    |        OpenBSD 3.5
 168  |      |          |  |      |    v            |
 169  |   FreeBSD 4.10  |  |      |                 |
 170  |      |          |  |      |                 |
 171  |   FreeBSD 4.11  |  |      |                 |
 172  |                 |  |      |                 |
 173  |                  `-|------|-----------------|---------------------.
 174  |                    |      |                 |                      \
 175 FreeBSD 5.0           |      |                 |                       |
 176  |                    |      |                 |                       |
 177 FreeBSD 5.1           |      |                 |                 DragonFly 1.0
 178  |          \         |      |                 |                       |
 179  |           ----- Mac OS X  |                 |                       |
 180  |                   10.3    |                 |                       |
 181 FreeBSD 5.2           |      |                 |                       |
 182  |      |             |      |                 |                       |
 183  |   FreeBSD 5.2.1    |      |                 |                       |
 184  |                    |      |                 |                       |
 185  *-------FreeBSD 5.3  |      |                 |                       |
 186  |           |        |      |             OpenBSD 3.6                 |
 187  |           |        |   NetBSD 2.0           |                       |
 188  |           |        |      | |  |            |                DragonFly 1.2.0
 189  |           |     Mac OS X  | | NetBSD 2.0.2  |                       |
 190  |           |       10.4    | |  |            |                       |
 191  |       FreeBSD 5.4  |      | |  |            |                       |
 192  |           |        |      | |  |        OpenBSD 3.7                 |
 193  |           |        |      | | NetBSD 2.0.3  |                       |
 194  |           |        |      | |  |            |                       |
 195  *--FreeBSD  |        |      | |  v        OpenBSD 3.8                 |
 196  |    6.0    |        |      | |               |                       |
 197  |     |     |        |      |  \              |                       |
 198  |     |     |        |      | NetBSD 2.1      |                       |
 199  |     |     |        |      |                 |                       |
 200  |     |     |        |   NetBSD 3.0           |                       |
 201  |     |     |        |      | |  |            |                DragonFly 1.4.0
 202  |     |     |        |      | |  |        OpenBSD 3.9                 |
 203  |  FreeBSD  |        |      | |  |            |                       |
 204  |    6.1    |        |      | |  |            |                       |
 205  |     |  FreeBSD 5.5 |      | |  |            |                       |
 206  |     |              |      | | NetBSD 3.0.1  |                DragonFly 1.6.0
 207  |     |              |      | |  |            |                       |
 208  |     |              |      | |  |        OpenBSD 4.0                 |
 209  |     |              |      | | NetBSD 3.0.2  |                       |
 210  |     |              |      | NetBSD 3.1      |                       |
 211  | FreeBSD 6.2        |      |                 |                       |
 212  |     |              |      |                 |                DragonFly 1.8.0
 213  |     |              |      |             OpenBSD 4.1                 |
 214  |     |              |      |                 |                DragonFly 1.10.0
 215  |     |           Mac OS X  |                 |                       |
 216  |     |             10.5    |                 |                       |
 217  |     |              |      |             OpenBSD 4.2                 |
 218  |     |              |   NetBSD 4.0           |                       |
 219  | FreeBSD 6.3        |      |                 |                       |
 220  |            \       |      |                 |                       |
 221  *--FreeBSD    |      |      |                 |                DragonFly 1.12.0
 222  |    7.0      |      |      |                 |                       |
 223  |     |       |      |      |             OpenBSD 4.3                 |
 224  |     V       |      |      |                 |                DragonFly 2.0.0
 225  |          FreeBSD   |      |             OpenBSD 4.4                 |
 226  |            6.4     |      |                 |                       |
 227  |                    |      |                 |                       |
 228 FreeBSD 8 -current    |  NetBSD -current  OpenBSD -current             |
 229  |                    |      |                 |                       |
 230  v                    v      v                 v                       v
 231
 232 Time
 233 ----------------
 234
 235 Time tolerance +/- 6 months, depending on which book/article you read; if it
 236 was the announcement in Usenet or if it was available as tape.
 237
 238 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
 239         and John Quarterman. The Design and Implementation of
 240         the 4.4BSD Operating System.
 241 [APL] Apple website [http://www.apple.com/macosx/]
 242 [BSDI] Berkeley Software Design, Inc.
 243 [DFB] DragonFlyBSD Project, The.
 244 [DOC] README, COPYRIGHT on tape.
 245 [FBD] FreeBSD Project, The.
 246 [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
 247         Volume 11, Info 4, April, 1987.
 248 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
 249         comp.bugs.4bsd.ucb-fixes, June 15, 1988.
 250 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
 251         Changes in the Kernel in 2.9BSD. Second Berkeley Software
 252         Distribution UNIX Version 2.9, July, 1983.
 253 [NBD] NetBSD Project, The.
 254 [OBD] OpenBSD Project, The.
 255 [QCU] Salus, Peter H. A quarter century of UNIX.
 256 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
 257 [USE] Usenet announcement.
 258 [WRS] Wind River Systems, Inc.
 259 [dmr] Dennis Ritchie, via E-Mail
 260
 261 Multics                 1965
 262 UNIX                    Summer 1969
 263                                 DEC PDP-7
 264 First   Edition         1971-11-03 [QCU]
 265                                 DEC PDP-11/20, Assembler
 266 Second  Edition         1972-06-12 [QCU]
 267                                 10 UNIX installations
 268 Third   Edition         1973-02-xx [QCU]
 269                                 Pipes, 16 installations
 270 Fourth  Edition         1973-11-xx [QCU]
 271                                 rewriting in C effected,
 272                                 above 30 installations
 273 Fifth   Edition         1974-06-xx [QCU]
 274                                 above 50 installations
 275 Sixth   Edition         1975-05-xx [QCU]
 276                                 port to DEC Vax
 277 Seventh Edition         1979-01-xx [QCU]
 278                                 first portable UNIX
 279 Eighth  Edition         1985-02-xx [QCU]
 280                                 VAX 11/750, VAX 11/780 [dmr]
 281                                 descended from 4.1c BSD [dmr]
 282                                 descended from 4.1 BSD [44B]
 283                         scooping-out and replacement of the character-device
 284                         and networking part by the streams mechanism
 285
 286 Ninth   Edition         1986-09-xx [QCU]
 287 Tenth   Edition         1989-10-xx [QCU]
 288
 289 1BSD                    late 1977
 290                         1978-03-09 [QCU]
 291                                 PDP-11, Pascal, ex(1)
 292                                 30 free copies of 1BSD sent out
 293                                 35 tapes sold for 50 USD [QCU]
 294 2BSD                    mid 1978 [QCU]
 295                                 75 2BSD tapes shipped
 296 2.7.9BSD                ?? [SMS]
 297 2.8BSD                  1981-07-xx [KSJ]
 298
 299 2.8.1BSD                1982-01-xx [QCU]
 300                                 set of performance improvements
 301 2.9BSD                  1983-07-xx [KSJ]
 302 2.9.1BSD                1983-11-xx
 303 2.9BSD-Seismo           1985-08-xx [SMS]
 304 2.10BSD                 1987-04-xx [KKK]
 305 2.10.1BSD               1989-01-xx [SMS]
 306 2.11BSD                 1992-02-xx [SMS]
 307 2.11BSD rev #430        1999-12-13 [SMS]
 308
 309 32V                     1978-1[01]-xx [QCU]
 310 3BSD                    late 1979 [QCU]
 311                                 virtual memory, page replacement,
 312                                 demand paging
 313 4.0BSD                  1980-10-xx
 314 4.1BSD                  1981-07-08 [DOC]
 315 4.1aBSD                 1982-04-xx
 316                                 alpha release, 100 sites, networking [44B]
 317 4.1bBSD                         internal release, fast filesystem [44B]
 318 4.1cBSD                 late 1982
 319                                 beta release, IPC [44B]
 320 4.2BSD                  1983-09-xx [QCU]
 321                         1983-08-03 [DOC]
 322 4.3BSD                  1986-06-xx [QCU]
 323                         1986-04-05 [KB], [DOC]
 324 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
 325 4.3BSD NET/1            1988-11-xx [QCU]
 326                         1989-01-01 [DOC]
 327 4.3BSD Reno             1990-06-29 [QCU], [DOC]
 328 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
 329
 330 BSD/386 ALPHA           1991-12-xx [BSDI]
 331                                 first code released to people outside BSDI
 332 386BSD 0.0              1992-02-xx [DOC]
 333 BSD/386 0.3.1           1992-04-xx [BSDI] first ext. beta; B customers
 334 BSD/386 0.3.3           1992-06-xx [BSDI] first CDROM version
 335 386BSD 0.1              1992-07-28 [DOC]
 336 4.4BSD Alpha            1992-07-07
 337 BSD/386 0.9.3           1992-10-xx [BSDI]
 338                                 first external gamma; G customers
 339 BSD/386 0.9.4           1992-12-xx [BSDI]
 340                                 would have been 1.0 except for request
 341                                 for preliminary injunction
 342 BSD/386 1.0             1993-03-xx [BSDI]
 343                                 injunction denied; first official release
 344 NetBSD 0.8              1993-04-20 [NBD]
 345 4.4BSD                  1993-06-01 [USE]
 346 NetBSD 0.9              1993-08-23 [NBD]
 347 FreeBSD 1.0             1993-11-01 [FBD]
 348 FreeBSD 1.0.2           1993-11-14 [FBD]
 349                                 supersedes 1.0 13 days after release.
 350 BSD/386 1.1             1994-02-xx [BSDI]
 351 4.4BSD Lite             1994-03-01 [USE]
 352 FreeBSD 1.1             1994-05-07 [FBD]
 353 FreeBSD 1.1.5           1994-06-30 [FBD]
 354 FreeBSD 1.1.5.1         1994-07-05 [FBD]
 355                                 supersedes 1.1.5 5 days after release.
 356 NetBSD 1.0              1994-10-26 [NBD]
 357 386BSD 1.0              1994-11-12 [USE]
 358 FreeBSD 2.0             1994-11-23 [FBD]
 359 BSD/OS 2.0              1995-01-xx [BSDI] 4.4 lite based
 360 FreeBSD 2.0.5           1995-06-10 [FBD]
 361 BSD/OS 2.0.1            1995-06-xx [BSDI]
 362 4.4BSD Lite Release 2   1995-06-xx [44B]
 363                                 the true final distribution from the CSRG
 364 FreeBSD 2.1.0           1995-11-19 [FBD]
 365 NetBSD 1.1              1995-11-26 [NBD]
 366 BSD/OS 2.1              1996-01-xx [BSDI]
 367 FreeBSD 2.1.5           1996-07-14 [FBD]
 368 NetBSD 1.2              1996-10-04 [NBD]
 369 OpenBSD 2.0             1996-10-18 [OBD]
 370 FreeBSD 2.1.6           1996-11-16 [FBD]
 371 FreeBSD 2.1.6.1         1996-11-25 [FBD] (sendmail security release)
 372 Rhapsody                1997-xx-xx
 373 FreeBSD 2.1.7           1997-02-20 [FBD]
 374 BSD/OS 3.0              1997-02-xx [BSDI] 4.4 lite2 based
 375 FreeBSD 2.2.0           1997-03-16 [FBD]
 376 FreeBSD 2.2.1           1997-03-25 [FBD]
 377 FreeBSD 2.2.2           1997-05-16 [FBD]
 378 NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
 379 OpenBSD 2.1             1997-06-01 [OBD]
 380 FreeBSD 2.2.5           1997-10-22 [FBD]
 381 OpenBSD 2.2             1997-12-01 [OBD]
 382 NetBSD 1.3              1998-01-04 [NBD]
 383 FreeBSD 2.2.6           1998-03-25 [FBD]
 384 NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
 385 BSD/OS 3.1              1998-03-xx [BSDI]
 386 OpenBSD 2.3             1998-05-19 [OBD]
 387 NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
 388 FreeBSD 2.2.7           1998-07-22 [FBD]
 389 BSD/OS 4.0              1998-08-xx [BSDI]
 390                                 2-lock MP support, ELF executables
 391 FreeBSD 3.0             1998-10-16 [FBD]
 392                                 FreeBSD-3.0 is a snapshot from -current,
 393                                 while 3.1 and 3.2 are from 3.x-stable which
 394                                 was branched quite some time after 3.0-release
 395 FreeBSD 2.2.8           1998-11-29 [FBD]
 396 OpenBSD 2.4             1998-12-01 [OBD]
 397 NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
 398 FreeBSD 3.1             1999-02-15 [FBD]
 399 BSD/OS 4.0.1            1999-03-xx [BSDI]
 400 NetBSD 1.4              1999-05-12 [NBD]
 401 FreeBSD 3.2             1999-05-17 [FBD]
 402 OpenBSD 2.5             1999-05-19 [OBD]
 403 NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
 404 FreeBSD 3.3             1999-09-17 [FBD]
 405 OpenBSD 2.6             1999-12-01 [OBD]
 406 FreeBSD 3.4             1999-12-20 [FBD]
 407 BSD/OS 4.1              1999-12-xx [BSDI]
 408 FreeBSD 4.0             2000-03-13 [FBD]
 409 NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
 410 OpenBSD 2.7             2000-06-15 [OBD]
 411 FreeBSD 3.5             2000-06-24 [FBD]
 412 FreeBSD 4.1             2000-07-27 [FBD]
 413 FreeBSD 3.5.1           2000-07-28 [FBD]
 414 FreeBSD 4.1.1           2000-09-25 [FBD] (a network-only patch release)
 415 FreeBSD 4.2             2000-11-21 [FBD]
 416 NetBSD 1.4.3            2000-11-25 [NBD] (patch release)
 417 BSD/OS 4.2              2000-11-29 [BSDI]
 418 OpenBSD 2.8             2000-12-01 [OBD]
 419 NetBSD 1.5              2000-12-06 [NBD]
 420 Mac OS X 10.0           2001-03-24 [APL]
 421 FreeBSD 4.3             2001-04-20 [FBD]
 422 OpenBSD 2.9             2001-06-01 [OBD]
 423 NetBSD 1.5.1            2001-07-11 [NBD] (patch release)
 424 NetBSD 1.5.2            2001-09-13 [NBD] (patch release)
 425 FreeBSD 4.4             2001-09-18 [FBD]
 426 Mac OS X 10.1           2001-09-29 [APL]
 427 OpenBSD 3.0             2001-12-01 [OBD]
 428 FreeBSD 4.5             2002-01-29 [FBD]
 429 BSD/OS 4.3              2002-03-14 [WRS]
 430 OpenBSD 3.1             2002-05-19 [OBD]
 431 FreeBSD 4.6             2002-06-15 [FBD]
 432 NetBSD 1.5.3            2002-07-22 [NBD] (patch release)
 433 FreeBSD 4.6.2           2002-08-15 [FBD] (patch release)
 434 Mac OS X 10.2           2002-08-23 [APL]
 435 NetBSD 1.6              2002-09-14 [NBD]
 436 FreeBSD 4.7             2002-10-08 [FBD]
 437 OpenBSD 3.2             2002-11-01 [OBD]
 438 FreeBSD 5.0             2003-01-17 [FBD]
 439                                 FreeBSD 5.0 is a separate branch off of
 440                                 -current, similar to 3.0.
 441 FreeBSD 4.8             2003-04-03 [FBD]
 442 NetBSD 1.6.1            2003-04-21 [NBD] (patch release)
 443 OpenBSD 3.3             2003-05-01 [OBD]
 444 BSD/OS 5.0              2003-05-?? [WRS]
 445 FreeBSD 5.1             2003-06-09 [FBD]
 446 Mac OS X 10.3           2003-10-24 [APL]
 447 FreeBSD 4.9             2003-10-28 [FBD]
 448 BSD/OS 5.1 ISE          2003-10-?? [WRS] (final version)
 449 OpenBSD 3.4             2003-11-01 [OBD]
 450 FreeBSD 5.2             2004-01-12 [FBD]
 451 FreeBSD 5.2.1           2004-02-22 [FBD] (patch release)
 452 NetBSD 1.6.2            2004-03-01 [NBD] (patch release)
 453 OpenBSD 3.5             2004-04-01 [OBD]
 454 FreeBSD 4.10            2004-05-27 [FBD]
 455 DragonFly 1.0           2004-07-12 [DFB]
 456 OpenBSD 3.6             2004-10-29 [OBD]
 457 FreeBSD 5.3             2004-11-06 [FBD]
 458 NetBSD 2.0              2004-12-09 [NBD]
 459 FreeBSD 4.11            2005-01-25 [FBD]
 460 DragonFly 1.2.0         2005-04-08 [DFB]
 461 NetBSD 2.0.2            2005-04-14 [NBD] (security/critical release)
 462 Mac OS X 10.4           2005-04-29 [APL]
 463 FreeBSD 5.4             2005-05-09 [FBD]
 464 OpenBSD 3.7             2005-05-19 [OBD]
 465 NetBSD 2.0.3            2005-10-31 [NBD] (security/critical release)
 466 OpenBSD 3.8             2005-11-01 [OBD]
 467 FreeBSD 6.0             2005-11-01 [FBD]
 468 NetBSD 2.1              2005-11-02 [NBD]
 469 NetBSD 3.0              2005-12-23 [NBD]
 470 DragonFly 1.4.0         2006-01-08 [DFB]
 471 OpenBSD 3.9             2006-05-01 [OBD]
 472 FreeBSD 6.1             2006-05-08 [FBD]
 473 FreeBSD 5.5             2006-05-25 [FBD]
 474 NetBSD 3.0.1            2006-07-24 [NBD] (security/critical release)
 475 DragonFly 1.6.0         2006-07-24 [DFB]
 476 OpenBSD 4.0             2006-11-01 [OBD]
 477 NetBSD 3.0.2            2006-11-04 [NBD] (security/critical release)
 478 NetBSD 3.1              2006-11-04 [NBD]
 479 FreeBSD 6.2             2007-01-15 [FBD]
 480 DragonFly 1.8.0         2007-01-30 [DFB]
 481 OpenBSD 4.1             2007-05-01 [OBD]
 482 DragonFly 1.10.0        2007-08-06 [DFB]
 483 Mac OS X 10.5           2007-10-26 [APL]
 484 OpenBSD 4.2             2007-11-01 [OBD]
 485 NetBSD 4.0              2007-12-19 [NBD]
 486 FreeBSD 6.3             2008-01-18 [FBD]
 487 DragonFly 1.12.0        2008-02-26 [DFB]
 488 FreeBSD 7.0             2008-02-27 [FBD]
 489 OpenBSD 4.3             2008-05-01 [OBD]
 490 DragonFly 2.0.0         2008-07-21 [DFB]
 491 OpenBSD 4.4             2008-11-01 [OBD]
 492 FreeBSD 6.4             2008-11-28 [FBD]
 493
 494 Bibliography
 495 ------------------------
 496
 497 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
 498 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
 499 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
 500
 501 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
 502 Company, Inc., 1994. ISBN 0-201-54777-5
 503
 504 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
 505 Quarterman. The Design and Implementation of the 4.4BSD Operating
 506 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
 507
 508 McKusick, Marshall Kirk, George Neville-Neil. The Design and
 509 Implementation of the FreeBSD Operating System.
 510 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
 511
 512 Doug McIlroy. Research Unix Reader.
 513
 514 Michael G. Brown. The Role of BSD in the Development of Unix.
 515 Presented to the Tasmanian Unix Special Interest Group of the
 516 Australian Computer Society, Hobart, August 1993.
 517
 518 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
 519 URL: http://www.byte.com/art/9410/sec8/art3.htm
 520
 521 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
 522 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
 523
 524 BSD Release Announcements collection.
 525 URL: http://www.de.FreeBSD.org/de/ftp/releases/
 526
 527 BSD Hypertext Man Pages
 528 URL: http://www.FreeBSD.org/cgi/man.cgi
 529
 530 UNIX history graphing project
 531 URL: http://minnie.tuhs.org/Unix_History/index.html
 532
 533 UNIX history
 534 URL: http://www.levenez.com/unix/
 535
 536 James Howard: The BSD Family Tree
 537 URL: http://ezine.daemonnews.org/200104/bsd_family.html
 538 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
 539
 540
 541 Acknowledgments
 542 ---------------
 543
 544 Josh Gilliam for suggestions, bug fixes, and finding very old
 545 original BSD announcements from Usenet or tapes.
 546
 547 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
 548
 549 --
 550 Copyright (c) 1997-2007 Wolfram Schneider <wosch@FreeBSD.ORG>
 551 URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
 552
 553 $FreeBSD: src/share/misc/bsd-family-tree,v 1.123 2008/11/28 19:35:48 maxim Exp $