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                2.79BSD
  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  |     |       |      |      |                 |                DragonFly 2.0.0
 225  |     |    FreeBSD   |      |             OpenBSD 4.4                 |
 226  |     |      6.4     |      |                 |                       |
 227  |     |              |      |                 |                       |
 228  |  FreeBSD 7.1       |      |                 |                       |
 229  |     |              |      |                 |                DragonFly 2.2.0
 230  |  FreeBSD 7.2       |   NetBSD 5.0       OpenBSD 4.5                 |
 231  |             \      |      |                 |                       |
 232  |              |     |      |                 |                DragonFly 2.4.0
 233  |              |     |      |             OpenBSD 4.6                 |
 234  |              |     |      |                 |                       |
 235  *--FreeBSD     |     |      |                 |                       |
 236  |    8.0       |     |      |                 |                       |
 237  |     |    FreeBSD   |      |                 |                       |
 238  |     |       7.3    |      |                 |                DragonFly 2.6.0
 239  |     |              |      |             OpenBSD 4.7                 |
 240  |  FreeBSD           |      |                 |                       |
 241  |    8.1             |      |                 |                       |
 242  |     |              |      |                 |                       |
 243  |     V              |      |                 |                       |
 244  |                    |      |                 |                       |
 245 FreeBSD 9 -current    |  NetBSD -current  OpenBSD -current             |
 246  |                    |      |                 |                       |
 247  v                    v      v                 v                       v
 248
 249 Time
 250 ----------------
 251
 252 Time tolerance +/- 6 months, depending on which book/article you read; if it
 253 was the announcement in Usenet or if it was available as tape.
 254
 255 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
 256         and John Quarterman. The Design and Implementation of
 257         the 4.4BSD Operating System.
 258 [APL] Apple website [http://www.apple.com/macosx/]
 259 [BSDI] Berkeley Software Design, Inc.
 260 [DFB] DragonFlyBSD Project, The.
 261 [DOC] README, COPYRIGHT on tape.
 262 [FBD] FreeBSD Project, The.
 263 [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
 264         Volume 11, Info 4, April, 1987.
 265 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
 266         comp.bugs.4bsd.ucb-fixes, June 15, 1988.
 267 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
 268         Changes in the Kernel in 2.9BSD. Second Berkeley Software
 269         Distribution UNIX Version 2.9, July, 1983.
 270 [NBD] NetBSD Project, The.
 271 [OBD] OpenBSD Project, The.
 272 [QCU] Salus, Peter H. A quarter century of UNIX.
 273 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
 274 [TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
 275 [USE] Usenet announcement.
 276 [WRS] Wind River Systems, Inc.
 277 [dmr] Dennis Ritchie, via E-Mail
 278
 279 Multics                 1965
 280 UNIX                    Summer 1969
 281                                 DEC PDP-7
 282 First   Edition         1971-11-03 [QCU]
 283                                 DEC PDP-11/20, Assembler
 284 Second  Edition         1972-06-12 [QCU]
 285                                 10 UNIX installations
 286 Third   Edition         1973-02-xx [QCU]
 287                                 Pipes, 16 installations
 288 Fourth  Edition         1973-11-xx [QCU]
 289                                 rewriting in C effected,
 290                                 above 30 installations
 291 Fifth   Edition         1974-06-xx [QCU]
 292                                 above 50 installations
 293 Sixth   Edition         1975-05-xx [QCU]
 294                                 port to DEC Vax
 295 Seventh Edition         1979-01-xx [QCU]
 296                                 first portable UNIX
 297 Eighth  Edition         1985-02-xx [QCU]
 298                                 VAX 11/750, VAX 11/780 [dmr]
 299                                 descended from 4.1c BSD [dmr]
 300                                 descended from 4.1 BSD [44B]
 301                         scooping-out and replacement of the character-device
 302                         and networking part by the streams mechanism
 303
 304 Ninth   Edition         1986-09-xx [QCU]
 305 Tenth   Edition         1989-10-xx [QCU]
 306
 307 1BSD                    late 1977
 308                         1978-03-09 [QCU]
 309                                 PDP-11, Pascal, ex(1)
 310                                 30 free copies of 1BSD sent out
 311                                 35 tapes sold for 50 USD [QCU]
 312 2BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
 313                                 75 2BSD tapes shipped
 314 2.79BSD                 1980-04-xx [TUHS]
 315 2.8BSD                  1981-07-xx [KSJ]
 316
 317 2.8.1BSD                1982-01-xx [QCU]
 318                                 set of performance improvements
 319 2.9BSD                  1983-07-xx [KSJ]
 320 2.9.1BSD                1983-11-xx [TUHS]
 321 2.9BSD-Seismo           1985-08-xx [SMS]
 322 2.10BSD                 1987-04-xx [KKK]
 323 2.10.1BSD               1989-01-xx [SMS]
 324 2.11BSD                 1992-02-xx [SMS]
 325 2.11BSD rev #430        1999-12-13 [SMS]
 326
 327 32V                     1978-1[01]-xx [QCU]
 328 3BSD                    late 1979 [QCU] March 1980 [TUHS]
 329                                 virtual memory, page replacement,
 330                                 demand paging
 331 4.0BSD                  1980-10-xx
 332 4.1BSD                  1981-07-08 [DOC]
 333 4.1aBSD                 1982-04-xx
 334                                 alpha release, 100 sites, networking [44B]
 335 4.1bBSD                         internal release, fast filesystem [44B]
 336 4.1cBSD                 late 1982
 337                                 beta release, IPC [44B]
 338 4.2BSD                  1983-09-xx [QCU]
 339                         1983-08-03 [DOC]
 340 4.3BSD                  1986-06-xx [QCU]
 341                         1986-04-05 [KB], [DOC]
 342 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
 343 4.3BSD NET/1            1988-11-xx [QCU]
 344                         1989-01-01 [DOC]
 345 4.3BSD Reno             1990-06-29 [QCU], [DOC]
 346 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
 347
 348 BSD/386 ALPHA           1991-12-xx [BSDI]
 349                                 first code released to people outside BSDI
 350 386BSD 0.0              1992-02-xx [DOC]
 351 BSD/386 0.3.1           1992-04-xx [BSDI] first ext. beta; B customers
 352 BSD/386 0.3.3           1992-06-xx [BSDI] first CDROM version
 353 386BSD 0.1              1992-07-28 [DOC]
 354 4.4BSD Alpha            1992-07-07
 355 BSD/386 0.9.3           1992-10-xx [BSDI]
 356                                 first external gamma; G customers
 357 BSD/386 0.9.4           1992-12-xx [BSDI]
 358                                 would have been 1.0 except for request
 359                                 for preliminary injunction
 360 BSD/386 1.0             1993-03-xx [BSDI]
 361                                 injunction denied; first official release
 362 NetBSD 0.8              1993-04-20 [NBD]
 363 4.4BSD                  1993-06-01 [USE]
 364 NetBSD 0.9              1993-08-23 [NBD]
 365 FreeBSD 1.0             1993-11-01 [FBD]
 366 FreeBSD 1.0.2           1993-11-14 [FBD]
 367                                 supersedes 1.0 13 days after release.
 368 BSD/386 1.1             1994-02-xx [BSDI]
 369 4.4BSD Lite             1994-03-01 [USE]
 370 FreeBSD 1.1             1994-05-07 [FBD]
 371 FreeBSD 1.1.5           1994-06-30 [FBD]
 372 FreeBSD 1.1.5.1         1994-07-05 [FBD]
 373                                 supersedes 1.1.5 5 days after release.
 374 NetBSD 1.0              1994-10-26 [NBD]
 375 386BSD 1.0              1994-11-12 [USE]
 376 FreeBSD 2.0             1994-11-23 [FBD]
 377 BSD/OS 2.0              1995-01-xx [BSDI] 4.4 lite based
 378 FreeBSD 2.0.5           1995-06-10 [FBD]
 379 BSD/OS 2.0.1            1995-06-xx [BSDI]
 380 4.4BSD Lite Release 2   1995-06-xx [44B]
 381                                 the true final distribution from the CSRG
 382 FreeBSD 2.1.0           1995-11-19 [FBD]
 383 NetBSD 1.1              1995-11-26 [NBD]
 384 BSD/OS 2.1              1996-01-xx [BSDI]
 385 FreeBSD 2.1.5           1996-07-14 [FBD]
 386 NetBSD 1.2              1996-10-04 [NBD]
 387 OpenBSD 2.0             1996-10-18 [OBD]
 388 FreeBSD 2.1.6           1996-11-16 [FBD]
 389 FreeBSD 2.1.6.1         1996-11-25 [FBD] (sendmail security release)
 390 Rhapsody                1997-xx-xx
 391 FreeBSD 2.1.7           1997-02-20 [FBD]
 392 BSD/OS 3.0              1997-02-xx [BSDI] 4.4 lite2 based
 393 FreeBSD 2.2.0           1997-03-16 [FBD]
 394 FreeBSD 2.2.1           1997-03-25 [FBD]
 395 FreeBSD 2.2.2           1997-05-16 [FBD]
 396 NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
 397 OpenBSD 2.1             1997-06-01 [OBD]
 398 FreeBSD 2.2.5           1997-10-22 [FBD]
 399 OpenBSD 2.2             1997-12-01 [OBD]
 400 NetBSD 1.3              1998-01-04 [NBD]
 401 FreeBSD 2.2.6           1998-03-25 [FBD]
 402 NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
 403 BSD/OS 3.1              1998-03-xx [BSDI]
 404 OpenBSD 2.3             1998-05-19 [OBD]
 405 NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
 406 FreeBSD 2.2.7           1998-07-22 [FBD]
 407 BSD/OS 4.0              1998-08-xx [BSDI]
 408                                 2-lock MP support, ELF executables
 409 FreeBSD 3.0             1998-10-16 [FBD]
 410                                 FreeBSD-3.0 is a snapshot from -current,
 411                                 while 3.1 and 3.2 are from 3.x-stable which
 412                                 was branched quite some time after 3.0-release
 413 FreeBSD 2.2.8           1998-11-29 [FBD]
 414 OpenBSD 2.4             1998-12-01 [OBD]
 415 NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
 416 FreeBSD 3.1             1999-02-15 [FBD]
 417 BSD/OS 4.0.1            1999-03-xx [BSDI]
 418 NetBSD 1.4              1999-05-12 [NBD]
 419 FreeBSD 3.2             1999-05-17 [FBD]
 420 OpenBSD 2.5             1999-05-19 [OBD]
 421 NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
 422 FreeBSD 3.3             1999-09-17 [FBD]
 423 OpenBSD 2.6             1999-12-01 [OBD]
 424 FreeBSD 3.4             1999-12-20 [FBD]
 425 BSD/OS 4.1              1999-12-xx [BSDI]
 426 FreeBSD 4.0             2000-03-13 [FBD]
 427 NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
 428 OpenBSD 2.7             2000-06-15 [OBD]
 429 FreeBSD 3.5             2000-06-24 [FBD]
 430 FreeBSD 4.1             2000-07-27 [FBD]
 431 FreeBSD 3.5.1           2000-07-28 [FBD]
 432 FreeBSD 4.1.1           2000-09-25 [FBD] (a network-only patch release)
 433 FreeBSD 4.2             2000-11-21 [FBD]
 434 NetBSD 1.4.3            2000-11-25 [NBD] (patch release)
 435 BSD/OS 4.2              2000-11-29 [BSDI]
 436 OpenBSD 2.8             2000-12-01 [OBD]
 437 NetBSD 1.5              2000-12-06 [NBD]
 438 Mac OS X 10.0           2001-03-24 [APL]
 439 FreeBSD 4.3             2001-04-20 [FBD]
 440 OpenBSD 2.9             2001-06-01 [OBD]
 441 NetBSD 1.5.1            2001-07-11 [NBD] (patch release)
 442 NetBSD 1.5.2            2001-09-13 [NBD] (patch release)
 443 FreeBSD 4.4             2001-09-18 [FBD]
 444 Mac OS X 10.1           2001-09-29 [APL]
 445 OpenBSD 3.0             2001-12-01 [OBD]
 446 FreeBSD 4.5             2002-01-29 [FBD]
 447 BSD/OS 4.3              2002-03-14 [WRS]
 448 OpenBSD 3.1             2002-05-19 [OBD]
 449 FreeBSD 4.6             2002-06-15 [FBD]
 450 NetBSD 1.5.3            2002-07-22 [NBD] (patch release)
 451 FreeBSD 4.6.2           2002-08-15 [FBD] (patch release)
 452 Mac OS X 10.2           2002-08-23 [APL]
 453 NetBSD 1.6              2002-09-14 [NBD]
 454 FreeBSD 4.7             2002-10-08 [FBD]
 455 OpenBSD 3.2             2002-11-01 [OBD]
 456 FreeBSD 5.0             2003-01-17 [FBD]
 457                                 FreeBSD 5.0 is a separate branch off of
 458                                 -current, similar to 3.0.
 459 FreeBSD 4.8             2003-04-03 [FBD]
 460 NetBSD 1.6.1            2003-04-21 [NBD] (patch release)
 461 OpenBSD 3.3             2003-05-01 [OBD]
 462 BSD/OS 5.0              2003-05-?? [WRS]
 463 FreeBSD 5.1             2003-06-09 [FBD]
 464 Mac OS X 10.3           2003-10-24 [APL]
 465 FreeBSD 4.9             2003-10-28 [FBD]
 466 BSD/OS 5.1 ISE          2003-10-?? [WRS] (final version)
 467 OpenBSD 3.4             2003-11-01 [OBD]
 468 FreeBSD 5.2             2004-01-12 [FBD]
 469 FreeBSD 5.2.1           2004-02-22 [FBD] (patch release)
 470 NetBSD 1.6.2            2004-03-01 [NBD] (patch release)
 471 OpenBSD 3.5             2004-04-01 [OBD]
 472 FreeBSD 4.10            2004-05-27 [FBD]
 473 DragonFly 1.0           2004-07-12 [DFB]
 474 OpenBSD 3.6             2004-10-29 [OBD]
 475 FreeBSD 5.3             2004-11-06 [FBD]
 476 NetBSD 2.0              2004-12-09 [NBD]
 477 FreeBSD 4.11            2005-01-25 [FBD]
 478 DragonFly 1.2.0         2005-04-08 [DFB]
 479 NetBSD 2.0.2            2005-04-14 [NBD] (security/critical release)
 480 Mac OS X 10.4           2005-04-29 [APL]
 481 FreeBSD 5.4             2005-05-09 [FBD]
 482 OpenBSD 3.7             2005-05-19 [OBD]
 483 NetBSD 2.0.3            2005-10-31 [NBD] (security/critical release)
 484 OpenBSD 3.8             2005-11-01 [OBD]
 485 FreeBSD 6.0             2005-11-01 [FBD]
 486 NetBSD 2.1              2005-11-02 [NBD]
 487 NetBSD 3.0              2005-12-23 [NBD]
 488 DragonFly 1.4.0         2006-01-08 [DFB]
 489 OpenBSD 3.9             2006-05-01 [OBD]
 490 FreeBSD 6.1             2006-05-08 [FBD]
 491 FreeBSD 5.5             2006-05-25 [FBD]
 492 NetBSD 3.0.1            2006-07-24 [NBD] (security/critical release)
 493 DragonFly 1.6.0         2006-07-24 [DFB]
 494 OpenBSD 4.0             2006-11-01 [OBD]
 495 NetBSD 3.0.2            2006-11-04 [NBD] (security/critical release)
 496 NetBSD 3.1              2006-11-04 [NBD]
 497 FreeBSD 6.2             2007-01-15 [FBD]
 498 DragonFly 1.8.0         2007-01-30 [DFB]
 499 OpenBSD 4.1             2007-05-01 [OBD]
 500 DragonFly 1.10.0        2007-08-06 [DFB]
 501 Mac OS X 10.5           2007-10-26 [APL]
 502 OpenBSD 4.2             2007-11-01 [OBD]
 503 NetBSD 4.0              2007-12-19 [NBD]
 504 FreeBSD 6.3             2008-01-18 [FBD]
 505 DragonFly 1.12.0        2008-02-26 [DFB]
 506 FreeBSD 7.0             2008-02-27 [FBD]
 507 OpenBSD 4.3             2008-05-01 [OBD]
 508 DragonFly 2.0.0         2008-07-21 [DFB]
 509 OpenBSD 4.4             2008-11-01 [OBD]
 510 FreeBSD 6.4             2008-11-28 [FBD]
 511 FreeBSD 7.1             2009-01-04 [FBD]
 512 DragonFly 2.2.0         2009-02-17 [DFB]
 513 NetBSD 5.0              2009-04-29 [NBD]
 514 OpenBSD 4.5             2009-05-01 [OBD]
 515 FreeBSD 7.2             2009-05-04 [FBD]
 516 DragonFly 2.4.0         2009-09-16 [DFB]
 517 OpenBSD 4.6             2009-10-18 [OBD]
 518 FreeBSD 8.0             2009-11-26 [FBD]
 519 FreeBSD 7.3             2010-03-23 [FBD]
 520 DragonFly 2.6.0         2010-03-28 [DFB]
 521 OpenBSD 4.7             2010-05-19 [OBD]
 522 FreeBSD 8.1             2010-07-24 [FBD]
 523
 524 Bibliography
 525 ------------------------
 526
 527 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
 528 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
 529 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
 530
 531 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
 532 Company, Inc., 1994. ISBN 0-201-54777-5
 533
 534 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
 535 Quarterman. The Design and Implementation of the 4.4BSD Operating
 536 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
 537
 538 McKusick, Marshall Kirk, George Neville-Neil. The Design and
 539 Implementation of the FreeBSD Operating System.
 540 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
 541
 542 Doug McIlroy. Research Unix Reader.
 543
 544 Michael G. Brown. The Role of BSD in the Development of Unix.
 545 Presented to the Tasmanian Unix Special Interest Group of the
 546 Australian Computer Society, Hobart, August 1993.
 547
 548 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
 549 URL: http://www.byte.com/art/9410/sec8/art3.htm
 550
 551 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
 552 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
 553
 554 BSD Release Announcements collection.
 555 URL: http://www.FreeBSD.org/releases/
 556
 557 BSD Hypertext Man Pages
 558 URL: http://www.FreeBSD.org/cgi/man.cgi
 559
 560 UNIX history graphing project
 561 URL: http://minnie.tuhs.org/Unix_History/index.html
 562
 563 UNIX history
 564 URL: http://www.levenez.com/unix/
 565
 566 James Howard: The BSD Family Tree
 567 URL: http://ezine.daemonnews.org/200104/bsd_family.html
 568 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
 569
 570
 571 Acknowledgments
 572 ---------------
 573
 574 Josh Gilliam for suggestions, bug fixes, and finding very old
 575 original BSD announcements from Usenet or tapes.
 576
 577 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
 578
 579 --
 580 Copyright (c) 1997-2007 Wolfram Schneider <wosch@FreeBSD.ORG>
 581 URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
 582
 583 $FreeBSD: src/share/misc/bsd-family-tree,v 1.139 2010/08/05 18:05:37 maxim Exp $