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  |      v           `-|------|-----------------|---------------------.
 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  |     V              |      |                 |                       |
 216 FreeBSD 7 -current    |  NetBSD -current  OpenBSD -current             |
 217  |                    |      |                 |                       |
 218  v                    v      v                 v                       v
 219
 220 Time
 221 ----------------
 222
 223 Time tolerance +/- 6 months, depending on which book/article you read; if it
 224 was the announcement in Usenet or if it was available as tape.
 225
 226 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
 227         and John Quarterman. The Design and Implementation of
 228         the 4.4BSD Operating System.
 229 [APL] Apple website [http://www.apple.com/macosx/]
 230 [BSDI] Berkeley Software Design, Inc.
 231 [DFB] DragonFlyBSD Project, The.
 232 [DOC] README, COPYRIGHT on tape.
 233 [FBD] FreeBSD Project, The.
 234 [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
 235         Volume 11, Info 4, April, 1987.
 236 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
 237         comp.bugs.4bsd.ucb-fixes, June 15, 1988.
 238 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
 239         Changes in the Kernel in 2.9BSD. Second Berkeley Software
 240         Distribution UNIX Version 2.9, July, 1983.
 241 [NBD] NetBSD Project, The.
 242 [OBD] OpenBSD Project, The.
 243 [QCU] Salus, Peter H. A quarter century of UNIX.
 244 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
 245 [USE] Usenet announcement.
 246 [WRS] Wind River Systems, Inc.
 247 [dmr] Dennis Ritchie, via E-Mail
 248
 249 Multics                 1965
 250 UNIX                    Summer 1969
 251                                 DEC PDP-7
 252 First   Edition         1971-11-03 [QCU]
 253                                 DEC PDP-11/20, Assembler
 254 Second  Edition         1972-06-12 [QCU]
 255                                 10 UNIX installations
 256 Third   Edition         1973-02-xx [QCU]
 257                                 Pipes, 16 installations
 258 Fourth  Edition         1973-11-xx [QCU]
 259                                 rewriting in C effected,
 260                                 above 30 installations
 261 Fifth   Edition         1974-06-xx [QCU]
 262                                 above 50 installations
 263 Sixth   Edition         1975-05-xx [QCU]
 264                                 port to DEC Vax
 265 Seventh Edition         1979-01-xx [QCU]
 266                                 first portable UNIX
 267 Eighth  Edition         1985-02-xx [QCU]
 268                                 VAX 11/750, VAX 11/780 [dmr]
 269                                 descended from 4.1c BSD [dmr]
 270                                 descended from 4.1 BSD [44B]
 271                         scooping-out and replacement of the character-device
 272                         and networking part by the streams mechanism
 273
 274 Ninth   Edition         1986-09-xx [QCU]
 275 Tenth   Edition         1989-10-xx [QCU]
 276
 277 1BSD                    late 1977
 278                         1978-03-09 [QCU]
 279                                 PDP-11, Pascal, ex(1)
 280                                 30 free copies of 1BSD sent out
 281                                 35 tapes sold for 50 USD [QCU]
 282 2BSD                    mid 1978 [QCU]
 283                                 75 2BSD tapes shipped
 284 2.7.9BSD                ?? [SMS]
 285 2.8BSD                  1981-07-xx [KSJ]
 286
 287 2.8.1BSD                1982-01-xx [QCU]
 288                                 set of performance improvements
 289 2.9BSD                  1983-07-xx [KSJ]
 290 2.9.1BSD                1983-11-xx
 291 2.9BSD-Seismo           1985-08-xx [SMS]
 292 2.10BSD                 1987-04-xx [KKK]
 293 2.10.1BSD               1989-01-xx [SMS]
 294 2.11BSD                 1992-02-xx [SMS]
 295 2.11BSD rev #430        1999-12-13 [SMS]
 296
 297 32V                     1978-1[01]-xx [QCU]
 298 3BSD                    late 1979 [QCU]
 299                                 virtual memory, page replacement,
 300                                 demand paging
 301 4.0BSD                  1980-10-xx
 302 4.1BSD                  1981-07-08 [DOC]
 303 4.1aBSD                 1982-04-xx
 304                                 alpha release, 100 sites, networking [44B]
 305 4.1bBSD                         internal release, fast filesystem [44B]
 306 4.1cBSD                 late 1982
 307                                 beta release, IPC [44B]
 308 4.2BSD                  1983-09-xx [QCU]
 309                         1983-08-03 [DOC]
 310 4.3BSD                  1986-06-xx [QCU]
 311                         1986-04-05 [KB], [DOC]
 312 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
 313 4.3BSD NET/1            1988-11-xx [QCU]
 314                         1989-01-01 [DOC]
 315 4.3BSD Reno             1990-06-29 [QCU], [DOC]
 316 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
 317
 318 BSD/386 ALPHA           1991-12-xx [BSDI]
 319                                 first code released to people outside BSDI
 320 386BSD 0.0              1992-02-xx [DOC]
 321 BSD/386 0.3.1           1992-04-xx [BSDI] first ext. beta; B customers
 322 BSD/386 0.3.3           1992-06-xx [BSDI] first CDROM version
 323 386BSD 0.1              1992-07-28 [DOC]
 324 4.4BSD Alpha            1992-07-07
 325 BSD/386 0.9.3           1992-10-xx [BSDI]
 326                                 first external gamma; G customers
 327 BSD/386 0.9.4           1992-12-xx [BSDI]
 328                                 would have been 1.0 except for request
 329                                 for preliminary injunction
 330 BSD/386 1.0             1993-03-xx [BSDI]
 331                                 injunction denied; first official release
 332 NetBSD 0.8              1993-04-20 [NBD]
 333 4.4BSD                  1993-06-01 [USE]
 334 NetBSD 0.9              1993-08-23 [NBD]
 335 FreeBSD 1.0             1993-11-01 [FBD]
 336 FreeBSD 1.0.2           1993-11-14 [FBD]
 337                                 supersedes 1.0 13 days after release.
 338 BSD/386 1.1             1994-02-xx [BSDI]
 339 4.4BSD Lite             1994-03-01 [USE]
 340 FreeBSD 1.1             1994-05-07 [FBD]
 341 FreeBSD 1.1.5           1994-06-30 [FBD]
 342 FreeBSD 1.1.5.1         1994-07-05 [FBD]
 343                                 supersedes 1.1.5 5 days after release.
 344 NetBSD 1.0              1994-10-26 [NBD]
 345 386BSD 1.0              1994-11-12 [USE]
 346 FreeBSD 2.0             1994-11-23 [FBD]
 347 BSD/OS 2.0              1995-01-xx [BSDI] 4.4 lite based
 348 FreeBSD 2.0.5           1995-06-10 [FBD]
 349 BSD/OS 2.0.1            1995-06-xx [BSDI]
 350 4.4BSD Lite Release 2   1995-06-xx [44B]
 351                                 the true final distribution from the CSRG
 352 FreeBSD 2.1.0           1995-11-19 [FBD]
 353 NetBSD 1.1              1995-11-26 [NBD]
 354 BSD/OS 2.1              1996-01-xx [BSDI]
 355 FreeBSD 2.1.5           1996-07-14 [FBD]
 356 NetBSD 1.2              1996-10-04 [NBD]
 357 OpenBSD 2.0             1996-10-18 [OBD]
 358 FreeBSD 2.1.6           1996-11-16 [FBD]
 359 FreeBSD 2.1.6.1         1996-11-25 [FBD] (sendmail security release)
 360 Rhapsody                1997-xx-xx
 361 FreeBSD 2.1.7           1997-02-20 [FBD]
 362 BSD/OS 3.0              1997-02-xx [BSDI] 4.4 lite2 based
 363 FreeBSD 2.2.0           1997-03-16 [FBD]
 364 FreeBSD 2.2.1           1997-03-25 [FBD]
 365 FreeBSD 2.2.2           1997-05-16 [FBD]
 366 NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
 367 OpenBSD 2.1             1997-06-01 [OBD]
 368 FreeBSD 2.2.5           1997-10-22 [FBD]
 369 OpenBSD 2.2             1997-12-01 [OBD]
 370 NetBSD 1.3              1998-01-04 [NBD]
 371 FreeBSD 2.2.6           1998-03-25 [FBD]
 372 NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
 373 BSD/OS 3.1              1998-03-xx [BSDI]
 374 OpenBSD 2.3             1998-05-19 [OBD]
 375 NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
 376 FreeBSD 2.2.7           1998-07-22 [FBD]
 377 BSD/OS 4.0              1998-08-xx [BSDI]
 378                                 2-lock MP support, ELF executables
 379 FreeBSD 3.0             1998-10-16 [FBD]
 380                                 FreeBSD-3.0 is a snapshot from -current,
 381                                 while 3.1 and 3.2 are from 3.x-stable which
 382                                 was branched quite some time after 3.0-release
 383 FreeBSD 2.2.8           1998-11-29 [FBD]
 384 OpenBSD 2.4             1998-12-01 [OBD]
 385 NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
 386 FreeBSD 3.1             1999-02-15 [FBD]
 387 BSD/OS 4.0.1            1999-03-xx [BSDI]
 388 NetBSD 1.4              1999-05-12 [NBD]
 389 FreeBSD 3.2             1999-05-17 [FBD]
 390 OpenBSD 2.5             1999-05-19 [OBD]
 391 NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
 392 FreeBSD 3.3             1999-09-17 [FBD]
 393 OpenBSD 2.6             1999-12-01 [OBD]
 394 FreeBSD 3.4             1999-12-20 [FBD]
 395 BSD/OS 4.1              1999-12-xx [BSDI]
 396 FreeBSD 4.0             2000-03-13 [FBD]
 397 NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
 398 OpenBSD 2.7             2000-06-15 [OBD]
 399 FreeBSD 3.5             2000-06-24 [FBD]
 400 FreeBSD 4.1             2000-07-27 [FBD]
 401 FreeBSD 3.5.1           2000-07-28 [FBD]
 402 FreeBSD 4.1.1           2000-09-25 [FBD] (a network-only patch release)
 403 FreeBSD 4.2             2000-11-21 [FBD]
 404 NetBSD 1.4.3            2000-11-25 [NBD] (patch release)
 405 BSD/OS 4.2              2000-11-29 [BSDI]
 406 OpenBSD 2.8             2000-12-01 [OBD]
 407 NetBSD 1.5              2000-12-06 [NBD]
 408 Mac OS X 10.0           2001-03-24 [APL]
 409 FreeBSD 4.3             2001-04-20 [FBD]
 410 OpenBSD 2.9             2001-06-01 [OBD]
 411 NetBSD 1.5.1            2001-07-11 [NBD] (patch release)
 412 NetBSD 1.5.2            2001-09-13 [NBD] (patch release)
 413 FreeBSD 4.4             2001-09-18 [FBD]
 414 Mac OS X 10.1           2001-09-29 [APL]
 415 OpenBSD 3.0             2001-12-01 [OBD]
 416 FreeBSD 4.5             2002-01-29 [FBD]
 417 BSD/OS 4.3              2002-03-14 [WRS]
 418 OpenBSD 3.1             2002-05-19 [OBD]
 419 FreeBSD 4.6             2002-06-15 [FBD]
 420 NetBSD 1.5.3            2002-07-22 [NBD] (patch release)
 421 FreeBSD 4.6.2           2002-08-15 [FBD] (patch release)
 422 Mac OS X 10.2           2002-08-23 [APL]
 423 NetBSD 1.6              2002-09-14 [NBD]
 424 FreeBSD 4.7             2002-10-08 [FBD]
 425 OpenBSD 3.2             2002-11-01 [OBD]
 426 FreeBSD 5.0             2003-01-17 [FBD]
 427                                 FreeBSD 5.0 is a separate branch off of
 428                                 -current, similar to 3.0.
 429 FreeBSD 4.8             2003-04-03 [FBD]
 430 NetBSD 1.6.1            2003-04-21 [NBD] (patch release)
 431 OpenBSD 3.3             2003-05-01 [OBD]
 432 BSD/OS 5.0              2003-05-?? [WRS]
 433 FreeBSD 5.1             2003-06-09 [FBD]
 434 Mac OS X 10.3           2003-10-24 [APL]
 435 FreeBSD 4.9             2003-10-28 [FBD]
 436 BSD/OS 5.1 ISE          2003-10-?? [WRS] (final version)
 437 OpenBSD 3.4             2003-11-01 [OBD]
 438 FreeBSD 5.2             2004-01-12 [FBD]
 439 FreeBSD 5.2.1           2004-02-22 [FBD] (patch release)
 440 NetBSD 1.6.2            2004-03-01 [NBD] (patch release)
 441 OpenBSD 3.5             2004-04-01 [OBD]
 442 FreeBSD 4.10            2004-05-27 [FBD]
 443 DragonFly 1.0           2004-07-12 [DFB]
 444 OpenBSD 3.6             2004-10-29 [OBD]
 445 FreeBSD 5.3             2004-11-06 [FBD]
 446 NetBSD 2.0              2004-12-09 [NBD]
 447 FreeBSD 4.11            2005-01-25 [FBD]
 448 DragonFly 1.2.0         2005-04-08 [DFB]
 449 NetBSD 2.0.2            2005-04-14 [NBD] (security/critical release)
 450 Mac OS X 10.4           2005-04-29 [APL]
 451 FreeBSD 5.4             2005-05-09 [FBD]
 452 OpenBSD 3.7             2005-05-19 [OBD]
 453 NetBSD 2.0.3            2005-10-31 [NBD] (security/critical release)
 454 OpenBSD 3.8             2005-11-01 [OBD]
 455 FreeBSD 6.0             2005-11-01 [FBD]
 456 NetBSD 2.1              2005-11-02 [NBD]
 457 NetBSD 3.0              2005-12-23 [NBD]
 458 DragonFly 1.4.0         2006-01-08 [DFB]
 459 OpenBSD 3.9             2006-05-01 [OBD]
 460 FreeBSD 6.1             2006-05-08 [FBD]
 461 FreeBSD 5.5             2006-05-25 [FBD]
 462 NetBSD 3.0.1            2006-07-24 [NBD] (security/critical release)
 463 DragonFly 1.6.0         2006-07-24 [DFB]
 464 OpenBSD 4.0             2006-11-01 [OBD]
 465 NetBSD 3.0.2            2006-11-04 [NBD] (security/critical release)
 466 NetBSD 3.1              2006-11-04 [NBD]
 467 FreeBSD 6.2             2007-01-15 [FBD]
 468 DragonFly 1.8.0         2007-01-30 [DFB]
 469 OpenBSD 4.1             2007-05-01 [OBD]
 470 DragonFly 1.10.0        2007-08-06 [DFB]
 471
 472 Bibliography
 473 ------------------------
 474
 475 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
 476 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
 477 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
 478
 479 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
 480 Company, Inc., 1994. ISBN 0-201-54777-5
 481
 482 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
 483 Quarterman. The Design and Implementation of the 4.4BSD Operating
 484 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
 485
 486 McKusick, Marshall Kirk, George Neville-Neil. The Design and
 487 Implementation of the FreeBSD Operating System.
 488 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
 489
 490 Doug McIlroy. Research Unix Reader.
 491
 492 Michael G. Brown. The Role of BSD in the Development of Unix.
 493 Presented to the Tasmanian Unix Special Interest Group of the
 494 Australian Computer Society, Hobart, August 1993.
 495
 496 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
 497 URL: http://www.byte.com/art/9410/sec8/art3.htm
 498
 499 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
 500 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
 501
 502 BSD Release Announcements collection.
 503 URL: http://www.de.FreeBSD.org/de/ftp/releases/
 504
 505 BSD Hypertext Man Pages
 506 URL: http://www.FreeBSD.org/cgi/man.cgi
 507
 508 UNIX history graphing project
 509 URL: http://minnie.tuhs.org/Unix_History/index.html
 510
 511 UNIX history
 512 URL: http://www.levenez.com/unix/
 513
 514 James Howard: The BSD Family Tree
 515 URL: http://ezine.daemonnews.org/200104/bsd_family.html
 516 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
 517
 518
 519 Acknowledgments
 520 ---------------
 521
 522 Josh Gilliam for suggestions, bug fixes, and finding very old
 523 original BSD announcements from Usenet or tapes.
 524
 525 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
 526
 527 --
 528 Copyright (c) 1997-2007 Wolfram Schneider <wosch@FreeBSD.ORG>
 529 URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
 530
 531 $FreeBSD: src/share/misc/bsd-family-tree,v 1.115 2007/08/07 15:35:24 maxim Exp $
 532 $DragonFly: src/share/misc/bsd-family-tree,v 1.12 2007/08/07 23:19:14 swildner Exp $