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  |     FreeBSD 2.2.8 | |     |    |            |             |
 114  |         |         | |     |    |            |             |
 115  |         v         | |     |    |        OpenBSD 2.4       |
 116  |     FreeBSD 2.2.9 | |     |    |            |             |
 117  |                   | |     |    |            |             |
 118 FreeBSD 3.0 <--------* |     |    v            |             |
 119  |                     |     | NetBSD 1.3.3    |             |
 120  *---FreeBSD 3.1       |     |                 |             |
 121  |       |             |     |                 |           BSD/OS 4.0.1
 122  |   FreeBSD 3.2----*  |  NetBSD 1.4       OpenBSD 2.5       |
 123  |       |          |  |  |  |    |            |             |
 124  |       |          |  |  |  |    |            |             |
 125  |       |          |  |  |  |    |            |             |
 126  |   FreeBSD 3.3    |  |  |  | NetBSD 1.4.1    |             |
 127  |       |          |  |  |  |    |        OpenBSD 2.6       |
 128  |   FreeBSD 3.4    |  |  |  |    |            |             |
 129  |           |      |  |  |  |    |            |           BSD/OS 4.1
 130 FreeBSD 4.0  |      |  |  |  | NetBSD 1.4.2    |             |
 131  |           |      |  |  |  |    |            |             |
 132  |           |      |  |  |  |    |            |             |
 133  |   FreeBSD 3.5    |  |  |  |    |        OpenBSD 2.7       |
 134  |           |      |  |  |  |    |            |             |
 135  |   FreeBSD 3.5.1  |  |  |  |    |            |             |
 136  |                  |  |  |  |    |            |             |
 137  *---FreeBSD 4.1    |  |  |  |    |            |             |
 138  |      |           |  | (?) |    |            |             |
 139  |   FreeBSD 4.1.1  |  |  /  |    |            |             |
 140  |      |           |  | /   |    |            |             |
 141  |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
 142  |      |         Mac OS X   |             OpenBSD 2.8     BSD/OS 4.2
 143  |      |             |      |                 |             |
 144  |      |             |      |                 |             |
 145  |      |           10.0  NetBSD 1.5           |             |
 146  |   FreeBSD 4.3      |      |    |            |             |
 147  |      |             |      |    |        OpenBSD 2.9       |
 148  |      |             |      | NetBSD 1.5.1    |             |
 149  |      |             |      |    |            |             |
 150  |   FreeBSD 4.4-.    |      | NetBSD 1.5.2    |             |
 151  |      |        | Mac OS X  |    |            |             |
 152  |      |        |   10.1    |    |        OpenBSD 3.0       |
 153  |   FreeBSD 4.5 |    |      |    |            |             |
 154  |      |         \   |      |    |            |           BSD/OS 4.3
 155  |   FreeBSD 4.6   \  |      |    |        OpenBSD 3.1       |
 156  |      |           \ |      | NetBSD 1.5.3    |             |
 157  |   FreeBSD 4.6.2 Mac OS X  |                 |             |
 158  |      |            10.2    |                 |             |
 159  |   FreeBSD 4.7      |      |                 |             |
 160  |      |             |   NetBSD 1.6       OpenBSD 3.2       |
 161  |   FreeBSD 4.8      |      |    |            |             |
 162  |      |             |      | NetBSD 1.6.1    |             |
 163  |      |--------.    |      |    |        OpenBSD 3.3     BSD/OS 5.0
 164  |      |         \   |      |    |            |             |
 165  |   FreeBSD 4.9   |  |      |    |        OpenBSD 3.4     BSD/OS 5.1 ISE
 166  |      |          |  |      |    |            |
 167  |      |          |  |      | NetBSD 1.6.2    |
 168  |      |          |  |      |    |            |
 169  |      |          |  |      |    |        OpenBSD 3.5
 170  |      |          |  |      |    v            |
 171  |   FreeBSD 4.10  |  |      |                 |
 172  |      |          |  |      |                 |
 173  |   FreeBSD 4.11  |  |      |                 |
 174  |                 |  |      |                 |
 175  |                  `-|------|-----------------|---------------------.
 176  |                    |      |                 |                      \
 177 FreeBSD 5.0           |      |                 |                       |
 178  |                    |      |                 |                       |
 179 FreeBSD 5.1           |      |                 |                 DragonFly 1.0
 180  |          \         |      |                 |                       |
 181  |           ----- Mac OS X  |                 |                       |
 182  |                   10.3    |                 |                       |
 183 FreeBSD 5.2           |      |                 |                       |
 184  |      |             |      |                 |                       |
 185  |   FreeBSD 5.2.1    |      |                 |                       |
 186  |                    |      |                 |                       |
 187  *-------FreeBSD 5.3  |      |                 |                       |
 188  |           |        |      |             OpenBSD 3.6                 |
 189  |           |        |   NetBSD 2.0           |                       |
 190  |           |        |      | |  |            |                DragonFly 1.2.0
 191  |           |     Mac OS X  | | NetBSD 2.0.2  |                       |
 192  |           |       10.4    | |  |            |                       |
 193  |       FreeBSD 5.4  |      | |  |            |                       |
 194  |           |        |      | |  |        OpenBSD 3.7                 |
 195  |           |        |      | | NetBSD 2.0.3  |                       |
 196  |           |        |      | |  |            |                       |
 197  *--FreeBSD  |        |      | |  v        OpenBSD 3.8                 |
 198  |    6.0    |        |      | |               |                       |
 199  |     |     |        |      |  \              |                       |
 200  |     |     |        |      | NetBSD 2.1      |                       |
 201  |     |     |        |      |                 |                       |
 202  |     |     |        |   NetBSD 3.0           |                       |
 203  |     |     |        |      | |  |            |                DragonFly 1.4.0
 204  |     |     |        |      | |  |        OpenBSD 3.9                 |
 205  |  FreeBSD  |        |      | |  |            |                       |
 206  |    6.1    |        |      | |  |            |                       |
 207  |     |  FreeBSD 5.5 |      | |  |            |                       |
 208  |     |              |      | | NetBSD 3.0.1  |                DragonFly 1.6.0
 209  |     |              |      | |  |            |                       |
 210  |     |              |      | |  |        OpenBSD 4.0                 |
 211  |     |              |      | | NetBSD 3.0.2  |                       |
 212  |     |              |      | NetBSD 3.1      |                       |
 213  | FreeBSD 6.2        |      |                 |                       |
 214  |     |              |      |                 |                DragonFly 1.8.0
 215  |     |              |      |             OpenBSD 4.1                 |
 216  |     |              |      |                 |                DragonFly 1.10.0
 217  |     |           Mac OS X  |                 |                       |
 218  |     |             10.5    |                 |                       |
 219  |     |              |      |             OpenBSD 4.2                 |
 220  |     |              |   NetBSD 4.0           |                       |
 221  | FreeBSD 6.3        |      |    |            |                       |
 222  |            \       |      |    |            |                       |
 223  *--FreeBSD    |      |      |    |            |                DragonFly 1.12.0
 224  |    7.0      |      |      |    |            |                       |
 225  |     |       |      |      |    |        OpenBSD 4.3                 |
 226  |     |       |      |      | NetBSD          |                DragonFly 2.0.0
 227  |     |    FreeBSD   |      |  4.0.1      OpenBSD 4.4                 |
 228  |     |      6.4     |      |                 |                       |
 229  |     |              |      |                 |                       |
 230  |  FreeBSD 7.1       |      |                 |                       |
 231  |     |              |      |                 |                DragonFly 2.2.0
 232  |  FreeBSD 7.2       |   NetBSD 5.0       OpenBSD 4.5                 |
 233  |             \      |      | |    \          |                       |
 234  |              |  Mac OS X  | |     \         |                       |
 235  |              |    10.6    | |      \        |                       |
 236  |              |     |      | |   NetBSD      |                DragonFly 2.4.0
 237  |              |     |      | |    5.0.1  OpenBSD 4.6                 |
 238  |              |     |      | |       |       |                       |
 239  *--FreeBSD     |     |      | |       |       |                       |
 240  |    8.0       |     |      | |       |       |                       |
 241  |     |     FreeBSD  |      | |   NetBSD      |                       |
 242  |     |       7.3    |      | |    5.0.2      |                DragonFly 2.6.0
 243  |     |        |     |      | |           OpenBSD 4.7                 |
 244  |  FreeBSD     |     |      | |               |                       |
 245  |    8.1       |     |      | |               |                       |
 246  |     |        |     |      | |               |                DragonFly 2.8.2
 247  |     |        |     |      | |           OpenBSD 4.8                 |
 248  |     |        |     |      | *--NetBSD       |                       |
 249  |  FreeBSD  FreeBSD  |      | |    5.1        |                       |
 250  |    8.2      7.4    |      | |      |        |               DragonFly 2.10.1
 251  |     |              |      | |      |    OpenBSD 4.9                 |
 252  |     `-----.     Mac OS X  | |      |        |                       |
 253  |            \      10.7    | |      |        |                       |
 254  |             |      |      | |      |    OpenBSD 5.0                 |
 255  *--FreeBSD    |      |      | |      |        |                       |
 256  |    9.0      |      |      | |   NetBSD      |               DragonFly 3.0.1
 257  |     |    FreeBSD   |      | |    5.1.2      |                       |
 258  |     |      8.3     |      | |      |        |                       |
 259  |     |       |      |      | |   NetBSD      |                       |
 260  |     |       |      |      | |    5.1.3      |                       |
 261  |     |       |      |      | |           OpenBSD 5.1                 |
 262  |     |       |   Mac OS X  | `----.          |                       |
 263  |     |       |     10.8    |       \         |                       |
 264  |     |       |      |   NetBSD 6.0  |        |                       |
 265  |     |       |      |      | | |    |    OpenBSD 5.2         DragonFly 3.2.1
 266  |  FreeBSD    |      |      | | | NetBSD      |                       |
 267  |    9.1      |      |      | | |   5.2       |                       |
 268  |     |       |      |      | | |    |        |                       |
 269  |     |       |      |      | | | NetBSD      |                       |
 270  |     |       |      |      | | |  5.2.1      |                       |
 271  |     |       |      |      | | |             |                       |
 272  |     |       |      |      | |  \            |                       |
 273  |     |       |      |      | |   NetBSD      |                       |
 274  |     |       |      |      | |    6.0.1      |                       |
 275  |     |       |      |      | |      |        |                       |
 276  |     |       |      |      | |   NetBSD      |                       |
 277  |     |       |      |      | |    6.0.2      |                       |
 278  |     |       |      |      | |      |   OpenBSD 5.3          DragonFly 3.4.1
 279  |     |       |      |      | |   NetBSD      |                       |
 280  |     |       |      |      | |    6.0.3      |                       |
 281  |     |       |      |      | |      |        |                       |
 282  |     |       |      |      | |   NetBSD      |                       |
 283  |     |       |      |      | |    6.0.4      |                       |
 284  |     |       |      |      | |      |        |                       |
 285  |     |       |      |      | |   NetBSD      |                       |
 286  |     |       |      |      | |    6.0.5      |                       |
 287  |     |       |      |      | |               |                       |
 288  |     |       |      |      | |`-NetBSD 6.1   |                       |
 289  |     |    FreeBSD   |      |       |         |                       |
 290  |     |      8.4     |      |    NetBSD 6.1.1 |                       |
 291  |     |              |      |       |         |                       |
 292  |  FreeBSD           |      |    NetBSD 6.1.2 |                       |
 293  |    9.2          Mac OS X  |       |         |                       |
 294  |     |             10.9    |       |    OpenBSD 5.4                  |
 295  |     `-----.        |      |       |         |               DragonFly 3.6.0
 296  |            \       |      |       |         |                       |
 297  *--FreeBSD    |      |      |    NetBSD 6.1.3 |                       |
 298  |   10.0      |      |      |       |         |                       |
 299  |     |       |      |      |       |         |               DragonFly 3.6.1
 300  |     |       |      |      |       |         |                       |
 301  |     |       |      |      |       |         |                       |
 302  |     |       |      |      |       |         |               DragonFly 3.6.2
 303  |     |       |      |      |    NetBSD 6.1.4 |                       |
 304  |     |       |      |      |       |         |                       |
 305  |     |       |      |      |       |    OpenBSD 5.5                  |
 306  |     |       |      |      |       |         |                       |
 307  |     |       |      |      |       |         |               DragonFly 3.8.0
 308  |     |       |      |      |       |         |                       |
 309  |     |       |      |      |       |         |                       |
 310  |     |       |      |      |       |         |               DragonFly 3.8.1
 311  |     |       |      |      |       |         |                       |
 312  |     |       |      |      |       |         |                       |
 313  |     |       |      |      |       |         |               DragonFly 3.6.3
 314  |     |       |      |      |       |         |                       |
 315  |     |    FreeBSD   |      |       |         |                       |
 316  |     |      9.3     |      |       |         |                       |
 317  |     |              |      |    NetBSD 6.1.5 |               DragonFly 3.8.2
 318  |     |           Mac OS X  |                 |                       |
 319  |     |             10.10   |                 |                       |
 320  |     |              |      |            OpenBSD 5.6                  |
 321  |  FreeBSD           |      |                 |                       |
 322  |   10.1             |      |                 |               DragonFly 4.0.1
 323  |     |              |      |                 |                       |
 324  |     |              |      |                 |               DragonFly 4.0.2
 325  |     |              |      |                 |                       |
 326  |     |              |      |                 |               DragonFly 4.0.3
 327  |     |              |      |                 |                       |
 328  |     |              |      |                 |               DragonFly 4.0.4
 329  |     |              |      |                 |                       |
 330  |     |              |      |                 |               DragonFly 4.0.5
 331  |     |              |      |                 |                       |
 332  |     |              |      |            OpenBSD 5.7                  |
 333  |     |              |      |                 |               DragonFly 4.2.0
 334  |  FreeBSD           |      |                 |                       |
 335  |   10.2             |      |                 |                       |
 336  |     |            OS X  NetBSD 7.0           |                       |
 337  |     |            10.11    |            OpenBSD 5.8                  |
 338  |     |              |      |                 |               DragonFly 4.4.1
 339  |  FreeBSD           |      |            OpenBSD 5.9                  |
 340  |   10.3             |      |                 |                       |
 341  |                    |      |                 |                       |
 342 FreeBSD 11 -current   |  NetBSD -current  OpenBSD -current     DragonFly -current
 343  |                    |      |                 |                       |
 344  v                    v      v                 v                       v
 345
 346 Time
 347 ----------------
 348
 349 Time tolerance +/- 6 months, depending on which book/article you read; if it
 350 was the announcement in Usenet or if it was available as tape.
 351
 352 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
 353         and John Quarterman. The Design and Implementation of
 354         the 4.4BSD Operating System.
 355 [APL] Apple website [http://www.apple.com/macosx/]
 356 [BSDI] Berkeley Software Design, Inc.
 357 [DFB] DragonFlyBSD Project, The.
 358 [DOC] README, COPYRIGHT on tape.
 359 [FBD] FreeBSD Project, The.
 360 [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
 361         Volume 11, Info 4, April, 1987.
 362 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
 363         comp.bugs.4bsd.ucb-fixes, June 15, 1988.
 364 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
 365         Changes in the Kernel in 2.9BSD. Second Berkeley Software
 366         Distribution UNIX Version 2.9, July, 1983.
 367 [NBD] NetBSD Project, The.
 368 [OBD] OpenBSD Project, The.
 369 [QCU] Salus, Peter H. A quarter century of UNIX.
 370 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
 371 [TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
 372 [USE] Usenet announcement.
 373 [WRS] Wind River Systems, Inc.
 374 [dmr] Dennis Ritchie, via E-Mail
 375
 376 Multics                 1965
 377 UNIX                    Summer 1969
 378                                 DEC PDP-7
 379 First   Edition         1971-11-03 [QCU]
 380                                 DEC PDP-11/20, Assembler
 381 Second  Edition         1972-06-12 [QCU]
 382                                 10 UNIX installations
 383 Third   Edition         1973-02-xx [QCU]
 384                                 Pipes, 16 installations
 385 Fourth  Edition         1973-11-xx [QCU]
 386                                 rewriting in C effected,
 387                                 above 30 installations
 388 Fifth   Edition         1974-06-xx [QCU]
 389                                 above 50 installations
 390 Sixth   Edition         1975-05-xx [QCU]
 391                                 port to DEC Vax
 392 Seventh Edition         1979-01-xx [QCU]
 393                                 first portable UNIX
 394 Eighth  Edition         1985-02-xx [QCU]
 395                                 VAX 11/750, VAX 11/780 [dmr]
 396                                 descended from 4.1c BSD [dmr]
 397                                 descended from 4.1 BSD [44B]
 398                         scooping-out and replacement of the character-device
 399                         and networking part by the streams mechanism
 400
 401 Ninth   Edition         1986-09-xx [QCU]
 402 Tenth   Edition         1989-10-xx [QCU]
 403
 404 1BSD                    late 1977
 405                         1978-03-09 [QCU]
 406                                 PDP-11, Pascal, ex(1)
 407                                 30 free copies of 1BSD sent out
 408                                 35 tapes sold for 50 USD [QCU]
 409 2BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
 410                                 75 2BSD tapes shipped
 411 2.79BSD                 1980-04-xx [TUHS]
 412 2.8BSD                  1981-07-xx [KSJ]
 413
 414 2.8.1BSD                1982-01-xx [QCU]
 415                                 set of performance improvements
 416 2.9BSD                  1983-07-xx [KSJ]
 417 2.9.1BSD                1983-11-xx [TUHS]
 418 2.9BSD-Seismo           1985-08-xx [SMS]
 419 2.10BSD                 1987-04-xx [KKK]
 420 2.10.1BSD               1989-01-xx [SMS]
 421 2.11BSD                 1992-02-xx [SMS]
 422 2.11BSD rev #430        1999-12-13 [SMS]
 423
 424 32V                     1978-1[01]-xx [QCU]
 425 3BSD                    late 1979 [QCU] March 1980 [TUHS]
 426                                 virtual memory, page replacement,
 427                                 demand paging
 428 4.0BSD                  1980-10-xx
 429 4.1BSD                  1981-07-08 [DOC]
 430 4.1aBSD                 1982-04-xx
 431                                 alpha release, 100 sites, networking [44B]
 432 4.1bBSD                         internal release, fast filesystem [44B]
 433 4.1cBSD                 late 1982
 434                                 beta release, IPC [44B]
 435 4.2BSD                  1983-09-xx [QCU]
 436                         1983-08-03 [DOC]
 437 4.3BSD                  1986-06-xx [QCU]
 438                         1986-04-05 [KB], [DOC]
 439 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
 440 4.3BSD NET/1            1988-11-xx [QCU]
 441                         1989-01-01 [DOC]
 442 4.3BSD Reno             1990-06-29 [QCU], [DOC]
 443 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
 444
 445 BSD/386 ALPHA           1991-12-xx [BSDI]
 446                                 first code released to people outside BSDI
 447 386BSD 0.0              1992-02-xx [DOC]
 448 BSD/386 0.3.1           1992-04-xx [BSDI] first ext. beta; B customers
 449 BSD/386 0.3.3           1992-06-xx [BSDI] first CDROM version
 450 386BSD 0.1              1992-07-28 [DOC]
 451 4.4BSD Alpha            1992-07-07
 452 BSD/386 0.9.3           1992-10-xx [BSDI]
 453                                 first external gamma; G customers
 454 BSD/386 0.9.4           1992-12-xx [BSDI]
 455                                 would have been 1.0 except for request
 456                                 for preliminary injunction
 457 BSD/386 1.0             1993-03-xx [BSDI]
 458                                 injunction denied; first official release
 459 NetBSD 0.8              1993-04-20 [NBD]
 460 4.4BSD                  1993-06-01 [USE]
 461 NetBSD 0.9              1993-08-23 [NBD]
 462 FreeBSD 1.0             1993-11-01 [FBD]
 463 FreeBSD 1.0.2           1993-11-14 [FBD]
 464                                 supersedes 1.0 13 days after release.
 465 BSD/386 1.1             1994-02-xx [BSDI]
 466 4.4BSD Lite             1994-03-01 [USE]
 467 FreeBSD 1.1             1994-05-07 [FBD]
 468 FreeBSD 1.1.5           1994-06-30 [FBD]
 469 FreeBSD 1.1.5.1         1994-07-05 [FBD]
 470                                 supersedes 1.1.5 5 days after release.
 471 NetBSD 1.0              1994-10-26 [NBD]
 472 386BSD 1.0              1994-11-12 [USE]
 473 FreeBSD 2.0             1994-11-23 [FBD]
 474 BSD/OS 2.0              1995-01-xx [BSDI] 4.4 lite based
 475 FreeBSD 2.0.5           1995-06-10 [FBD]
 476 BSD/OS 2.0.1            1995-06-xx [BSDI]
 477 4.4BSD Lite Release 2   1995-06-xx [44B]
 478                                 the true final distribution from the CSRG
 479 FreeBSD 2.1.0           1995-11-19 [FBD]
 480 NetBSD 1.1              1995-11-26 [NBD]
 481 BSD/OS 2.1              1996-01-xx [BSDI]
 482 FreeBSD 2.1.5           1996-07-14 [FBD]
 483 NetBSD 1.2              1996-10-04 [NBD]
 484 OpenBSD 2.0             1996-10-18 [OBD]
 485 FreeBSD 2.1.6           1996-11-16 [FBD]
 486 FreeBSD 2.1.6.1         1996-11-25 [FBD] (sendmail security release)
 487 Rhapsody                1997-xx-xx
 488 FreeBSD 2.1.7           1997-02-20 [FBD]
 489 BSD/OS 3.0              1997-02-xx [BSDI] 4.4 lite2 based
 490 FreeBSD 2.2.0           1997-03-16 [FBD]
 491 FreeBSD 2.2.1           1997-03-25 [FBD]
 492 FreeBSD 2.2.2           1997-05-16 [FBD]
 493 NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
 494 OpenBSD 2.1             1997-06-01 [OBD]
 495 FreeBSD 2.2.5           1997-10-22 [FBD]
 496 OpenBSD 2.2             1997-12-01 [OBD]
 497 NetBSD 1.3              1998-01-04 [NBD]
 498 FreeBSD 2.2.6           1998-03-25 [FBD]
 499 NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
 500 BSD/OS 3.1              1998-03-xx [BSDI]
 501 OpenBSD 2.3             1998-05-19 [OBD]
 502 NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
 503 FreeBSD 2.2.7           1998-07-22 [FBD]
 504 BSD/OS 4.0              1998-08-xx [BSDI]
 505                                 2-lock MP support, ELF executables
 506 FreeBSD 3.0             1998-10-16 [FBD]
 507                                 FreeBSD-3.0 is a snapshot from -current,
 508                                 while 3.1 and 3.2 are from 3.x-stable which
 509                                 was branched quite some time after 3.0-release
 510 FreeBSD 2.2.8           1998-11-29 [FBD]
 511 OpenBSD 2.4             1998-12-01 [OBD]
 512 NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
 513 FreeBSD 3.1             1999-02-15 [FBD]
 514 BSD/OS 4.0.1            1999-03-xx [BSDI]
 515 NetBSD 1.4              1999-05-12 [NBD]
 516 FreeBSD 3.2             1999-05-17 [FBD]
 517 OpenBSD 2.5             1999-05-19 [OBD]
 518 NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
 519 FreeBSD 3.3             1999-09-17 [FBD]
 520 OpenBSD 2.6             1999-12-01 [OBD]
 521 FreeBSD 3.4             1999-12-20 [FBD]
 522 BSD/OS 4.1              1999-12-xx [BSDI]
 523 FreeBSD 4.0             2000-03-13 [FBD]
 524 NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
 525 OpenBSD 2.7             2000-06-15 [OBD]
 526 FreeBSD 3.5             2000-06-24 [FBD]
 527 FreeBSD 4.1             2000-07-27 [FBD]
 528 FreeBSD 3.5.1           2000-07-28 [FBD]
 529 FreeBSD 4.1.1           2000-09-25 [FBD] (a network-only patch release)
 530 FreeBSD 4.2             2000-11-21 [FBD]
 531 NetBSD 1.4.3            2000-11-25 [NBD] (patch release)
 532 BSD/OS 4.2              2000-11-29 [BSDI]
 533 OpenBSD 2.8             2000-12-01 [OBD]
 534 NetBSD 1.5              2000-12-06 [NBD]
 535 Mac OS X 10.0           2001-03-24 [APL]
 536 FreeBSD 4.3             2001-04-20 [FBD]
 537 OpenBSD 2.9             2001-06-01 [OBD]
 538 NetBSD 1.5.1            2001-07-11 [NBD] (patch release)
 539 NetBSD 1.5.2            2001-09-13 [NBD] (patch release)
 540 FreeBSD 4.4             2001-09-18 [FBD]
 541 Mac OS X 10.1           2001-09-29 [APL]
 542 OpenBSD 3.0             2001-12-01 [OBD]
 543 FreeBSD 4.5             2002-01-29 [FBD]
 544 BSD/OS 4.3              2002-03-14 [WRS]
 545 OpenBSD 3.1             2002-05-19 [OBD]
 546 FreeBSD 4.6             2002-06-15 [FBD]
 547 NetBSD 1.5.3            2002-07-22 [NBD] (patch release)
 548 FreeBSD 4.6.2           2002-08-15 [FBD] (patch release)
 549 Mac OS X 10.2           2002-08-23 [APL]
 550 NetBSD 1.6              2002-09-14 [NBD]
 551 FreeBSD 4.7             2002-10-08 [FBD]
 552 OpenBSD 3.2             2002-11-01 [OBD]
 553 FreeBSD 5.0             2003-01-17 [FBD]
 554                                 FreeBSD 5.0 is a separate branch off of
 555                                 -current, similar to 3.0.
 556 FreeBSD 4.8             2003-04-03 [FBD]
 557 NetBSD 1.6.1            2003-04-21 [NBD] (patch release)
 558 OpenBSD 3.3             2003-05-01 [OBD]
 559 BSD/OS 5.0              2003-05-?? [WRS]
 560 FreeBSD 5.1             2003-06-09 [FBD]
 561 Mac OS X 10.3           2003-10-24 [APL]
 562 FreeBSD 4.9             2003-10-28 [FBD]
 563 BSD/OS 5.1 ISE          2003-10-?? [WRS] (final version)
 564 OpenBSD 3.4             2003-11-01 [OBD]
 565 FreeBSD 5.2             2004-01-12 [FBD]
 566 FreeBSD 5.2.1           2004-02-22 [FBD] (patch release)
 567 NetBSD 1.6.2            2004-03-01 [NBD] (patch release)
 568 OpenBSD 3.5             2004-04-01 [OBD]
 569 FreeBSD 4.10            2004-05-27 [FBD]
 570 DragonFly 1.0           2004-07-12 [DFB]
 571 OpenBSD 3.6             2004-10-29 [OBD]
 572 FreeBSD 5.3             2004-11-06 [FBD]
 573 NetBSD 2.0              2004-12-09 [NBD]
 574 FreeBSD 4.11            2005-01-25 [FBD]
 575 DragonFly 1.2.0         2005-04-08 [DFB]
 576 NetBSD 2.0.2            2005-04-14 [NBD] (security/critical release)
 577 Mac OS X 10.4           2005-04-29 [APL]
 578 FreeBSD 5.4             2005-05-09 [FBD]
 579 OpenBSD 3.7             2005-05-19 [OBD]
 580 NetBSD 2.0.3            2005-10-31 [NBD] (security/critical release)
 581 OpenBSD 3.8             2005-11-01 [OBD]
 582 FreeBSD 6.0             2005-11-01 [FBD]
 583 NetBSD 2.1              2005-11-02 [NBD]
 584 NetBSD 3.0              2005-12-23 [NBD]
 585 DragonFly 1.4.0         2006-01-08 [DFB]
 586 FreeBSD 2.2.9           2006-04-01 [FBD]
 587 OpenBSD 3.9             2006-05-01 [OBD]
 588 FreeBSD 6.1             2006-05-08 [FBD]
 589 FreeBSD 5.5             2006-05-25 [FBD]
 590 NetBSD 3.0.1            2006-07-24 [NBD] (security/critical release)
 591 DragonFly 1.6.0         2006-07-24 [DFB]
 592 OpenBSD 4.0             2006-11-01 [OBD]
 593 NetBSD 3.0.2            2006-11-04 [NBD] (security/critical release)
 594 NetBSD 3.1              2006-11-04 [NBD]
 595 FreeBSD 6.2             2007-01-15 [FBD]
 596 DragonFly 1.8.0         2007-01-30 [DFB]
 597 OpenBSD 4.1             2007-05-01 [OBD]
 598 DragonFly 1.10.0        2007-08-06 [DFB]
 599 Mac OS X 10.5           2007-10-26 [APL]
 600 OpenBSD 4.2             2007-11-01 [OBD]
 601 NetBSD 4.0              2007-12-19 [NBD]
 602 FreeBSD 6.3             2008-01-18 [FBD]
 603 DragonFly 1.12.0        2008-02-26 [DFB]
 604 FreeBSD 7.0             2008-02-27 [FBD]
 605 OpenBSD 4.3             2008-05-01 [OBD]
 606 DragonFly 2.0.0         2008-07-21 [DFB]
 607 OpenBSD 4.4             2008-11-01 [OBD]
 608 FreeBSD 6.4             2008-11-28 [FBD]
 609 FreeBSD 7.1             2009-01-04 [FBD]
 610 DragonFly 2.2.0         2009-02-17 [DFB]
 611 NetBSD 5.0              2009-04-29 [NBD]
 612 OpenBSD 4.5             2009-05-01 [OBD]
 613 FreeBSD 7.2             2009-05-04 [FBD]
 614 Mac OS X 10.6           2009-06-08 [APL]
 615 NetBSD 5.0.1            2009-08-02 [NBD] (security/critical release)
 616 DragonFly 2.4.0         2009-09-16 [DFB]
 617 OpenBSD 4.6             2009-10-18 [OBD]
 618 FreeBSD 8.0             2009-11-26 [FBD]
 619 NetBSD 5.0.2            2010-02-12 [NBD] (security/critical release)
 620 FreeBSD 7.3             2010-03-23 [FBD]
 621 DragonFly 2.6.0         2010-03-28 [DFB]
 622 OpenBSD 4.7             2010-05-19 [OBD]
 623 FreeBSD 8.1             2010-07-24 [FBD]
 624 DragonFly 2.8.2         2010-10-30 [DFB]
 625 OpenBSD 4.8             2010-11-01 [OBD]
 626 NetBSD 5.1              2010-11-19 [NBD]
 627 FreeBSD 7.4             2011-02-24 [FBD]
 628 FreeBSD 8.2             2011-02-24 [FBD]
 629 DragonFly 2.10.1        2011-04-26 [DFB]
 630 OpenBSD 4.9             2011-05-01 [OBD]
 631 Mac OS X 10.7           2011-07-20 [APL]
 632 OpenBSD 5.0             2011-11-01 [OBD]
 633 FreeBSD 9.0             2012-01-12 [FBD]
 634 NetBSD 5.1.2            2012-02-02 [NBD] (security/critical release)
 635 DragonFly 3.0.1         2012-02-21 [DFB]
 636 FreeBSD 8.3             2012-04-18 [FBD]
 637 OpenBSD 5.1             2012-05-01 [OBD]
 638 Mac OS X 10.8           2012-07-25 [APL]
 639 NetBSD 6.0              2012-10-17 [NBD]
 640 OpenBSD 5.2             2012-11-01 [OBD]
 641 DragonFly 3.2.1         2012-11-02 [DFB]
 642 NetBSD 5.2              2012-12-03 [NBD]
 643 NetBSD 6.0.1            2012-12-26 [NBD] (security/critical release)
 644 FreeBSD 9.1             2012-12-30 [FBD]
 645 DragonFly 3.4.1         2013-04-29 [DFB]
 646 OpenBSD 5.3             2013-05-01 [OBD]
 647 NetBSD 6.0.2            2013-05-18 [NBD] (security/critical release)
 648 NetBSD 6.1              2013-05-18 [NBD]
 649 FreeBSD 8.4             2013-06-07 [FBD]
 650 NetBSD 6.1.1            2013-08-22 [NBD]
 651 NetBSD 5.1.3            2013-09-29 [NBD]
 652 NetBSD 5.2.1            2013-09-29 [NBD]
 653 FreeBSD 9.2             2013-09-30 [FBD]
 654 NetBSD 6.0.3            2013-09-30 [NBD]
 655 NetBSD 6.1.2            2013-09-30 [NBD]
 656 Mac OS X 10.9           2013-10-22 [APL]
 657 OpenBSD 5.4             2013-11-01 [OBD]
 658 DragonFly 3.6.0         2013-11-25 [DFB]
 659 FreeBSD 10.0            2014-01-20 [FBD]
 660 NetBSD 6.0.4            2014-01-27 [NBD]
 661 NetBSD 6.1.3            2014-01-27 [NBD]
 662 DragonFly 3.6.1         2014-02-22 [DFB]
 663 DragonFly 3.6.2         2014-04-10 [DFB]
 664 NetBSD 6.0.5            2014-04-19 [NDB]
 665 NetBSD 6.1.4            2014-04-19 [NDB]
 666 OpenBSD 5.5             2014-05-01 [OBD]
 667 DragonFly 3.8.0         2014-06-04 [DFB]
 668 DragonFly 3.8.1         2014-06-16 [DFB]
 669 DragonFly 3.6.3         2014-06-17 [DFB]
 670 FreeBSD 9.3             2014-07-05 [FBD]
 671 DragonFly 3.8.2         2014-08-08 [DFB]
 672 NetBSD 6.1.5            2014-09-22 [NBD]
 673 Mac OS X 10.10          2014-10-16 [APL]
 674 OpenBSD 5.6             2014-11-01 [OBD]
 675 FreeBSD 10.1            2014-11-14 [FBD]
 676 DragonFly 4.0.1         2014-11-25 [DFB]
 677 DragonFly 4.0.2         2015-01-07 [DFB]
 678 DragonFly 4.0.3         2015-01-21 [DFB]
 679 DragonFly 4.0.4         2015-03-09 [DFB]
 680 DragonFly 4.0.5         2015-03-23 [DFB]
 681 OpenBSD 5.7             2015-05-01 [OBD]
 682 DragonFly 4.2.0         2015-06-29 [DFB]
 683 FreeBSD 10.2            2015-08-13 [FBD]
 684 NetBSD 7.0              2015-09-25 [NBD]
 685 OS X 10.11              2015-09-30 [APL]
 686 OpenBSD 5.8             2015-10-18 [OBD]
 687 DragonFly 4.4.1         2015-12-07 [DFB]
 688 OpenBSD 5.9             2016-03-29 [OBD]
 689 FreeBSD 10.3            2016-04-04 [FBD]
 690
 691 Bibliography
 692 ------------------------
 693
 694 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
 695 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
 696 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
 697
 698 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
 699 Company, Inc., 1994. ISBN 0-201-54777-5
 700
 701 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
 702 Quarterman. The Design and Implementation of the 4.4BSD Operating
 703 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
 704
 705 McKusick, Marshall Kirk, George Neville-Neil. The Design and
 706 Implementation of the FreeBSD Operating System.
 707 Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
 708
 709 McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The
 710 Design and Implementation of the FreeBSD Operating System, 2nd Edition.
 711 Pearson Education, Inc., 2014. ISBN 0-321-96897-2
 712
 713 Doug McIlroy. Research Unix Reader.
 714
 715 Michael G. Brown. The Role of BSD in the Development of Unix.
 716 Presented to the Tasmanian Unix Special Interest Group of the
 717 Australian Computer Society, Hobart, August 1993.
 718
 719 Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
 720 URL: http://www.byte.com/art/9410/sec8/art3.htm
 721
 722 Andreas Klemm, Lars Köller. If you're going to San Francisco ...
 723 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
 724
 725 BSD Release Announcements collection.
 726 URL: http://www.FreeBSD.org/releases/
 727
 728 BSD Hypertext Man Pages
 729 URL: http://www.FreeBSD.org/cgi/man.cgi
 730
 731 UNIX history graphing project
 732 URL: http://minnie.tuhs.org/Unix_History/index.html
 733
 734 UNIX history
 735 URL: http://www.levenez.com/unix/
 736
 737 James Howard: The BSD Family Tree
 738 URL: http://ezine.daemonnews.org/200104/bsd_family.html
 739 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
 740
 741
 742 Acknowledgments
 743 ---------------
 744
 745 Josh Gilliam for suggestions, bug fixes, and finding very old
 746 original BSD announcements from Usenet or tapes.
 747
 748 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
 749
 750 --
 751 Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
 752 URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree
 753
 754 $FreeBSD$