bsd-family-tree revision 1.87
1The UNIX system family tree: Research and BSD 2--------------------------------------------- 3 4First Edition (V1) 5 | 6Second Edition (V2) 7 | 8Third Edition (V3) 9 | 10Fourth Edition (V4) 11 | 12Fifth Edition (V5) 13 | 14Sixth Edition (V6) -----* 15 \ | 16 \ | 17 \ | 18Seventh 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 / | | 38Eighth Edition | 2.9BSD-Seismo 39 | | | 40 +----<--- 4.2BSD 2.9.1BSD 41 | | | 42 +----<--- 4.3BSD -------------> 2.10BSD 43 | | / | 44Ninth Edition | / 2.10.1BSD 45 | 4.3BSD Tahoe-----+ | 46 | | \ | 47 | | \ | 48 v | 2.11BSD 49Tenth Edition | | 50 | 2.11BSD rev #430 51 4.3BSD NET/1 | 52 | v 53 4.3BSD Reno 54 | 55 *---------- 4.3BSD NET/2 -------------------+-------------* 56 | | | | 57386BSD 0.0 | | BSD/386 ALPHA 58 | | | | 59386BSD 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 | / | | | 67FreeBSD 1.0 <-----' *--NetBSD 0.9 | BSD/386 1.1 68 | | .----- 4.4BSD Lite | 69FreeBSD 1.1 | / / | \ | 70 | | / | | \ | 71FreeBSD 1.1.5 .---|--------' | | \ | 72 | / | | | \ | 73FreeBSD 1.1.5.1 / | | | \ | 74 | / *--NetBSD 1.0 <-' | \ | 75 | / | | \ | 76FreeBSD 2.0 <--' | | BSD/OS 2.0 77 | \ | | 78FreeBSD 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 | 85FreeBSD 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 | | | | | | | 118FreeBSD 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 130FreeBSD 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 | | | | \ 177FreeBSD 5.0 | | | | 178 | | | | | 179FreeBSD 5.1 | | | DragonFly 1.0 180 | \ | | | | 181 | ----- Mac OS X | | | 182 | 10.3 | | | 183FreeBSD 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 OpenBSD 4.5 | 233 | \ | | 5.0 | | 234 | \ | | / | \ | | 235 | | Mac OS X | | | \ | | 236 | | 10.6 | | | \ | | 237 | | | | | | NetBSD | DragonFly 2.4.0 238 | | | | | | 5.0.1 OpenBSD 4.6 | 239 | | | | | | | | | 240 *--FreeBSD | | | | | | | | 241 | 8.0 | | | | | | | | 242 | | FreeBSD | | | | NetBSD | | 243 | | 7.3 | | | | 5.0.2 | DragonFly 2.6.0 244 | | | | | | | OpenBSD 4.7 | 245 | FreeBSD | | | | | | | 246 | 8.1 | | | | | | | 247 | | | | | | | | DragonFly 2.8.2 248 | | | | | | | OpenBSD 4.8 | 249 | | | | | | *--NetBSD | | 250 | FreeBSD FreeBSD | | | 5.1 | | 251 | 8.2 7.4 | | | | | DragonFly 2.10.1 252 | | | | | | OpenBSD 4.9 | 253 | `-----. Mac OS X | | | | | 254 | \ 10.7 | | | | | 255 | | | | | | OpenBSD 5.0 | 256 *--FreeBSD | | | | | | | 257 | 9.0 | | | | NetBSD | DragonFly 3.0.1 258 | | FreeBSD | | | 5.1.2 | | 259 | | 8.3 | | | | | | 260 | | | | | | NetBSD | | 261 | | | | | | 5.1.3 | | 262 | | | | | | | | | 263 | | | | | | NetBSD | | 264 | | | | | | 5.1.4 | | 265 | | | | | | OpenBSD 5.1 | 266 | | | Mac OS X | `--------. | | 267 | | | 10.8 | | | | 268 | | | | *--NetBSD | | | 269 | | | | | 6.0 | | | 270 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 271 | FreeBSD | | | | | NetBSD | | 272 | 9.1 | | | | | 5.2 | | 273 | | | | | | | | | | 274 | | | | | | | NetBSD | | 275 | | | | | | | 5.2.1 | | 276 | | | | | | | | | | 277 | | | | | | | NetBSD | | 278 | | | | | | | 5.2.2 | | 279 | | | | | | | | | 280 | | | | | | \ | | 281 | | | | | | NetBSD | | 282 | | | | | | 6.0.1 | | 283 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1 284 | | | | | | NetBSD | | 285 | | | | | | 6.0.2 | | 286 | | | | | | | | | 287 | | | | | | NetBSD | | 288 | | | | | | 6.0.3 | | 289 | | | | | | | | | 290 | | | | | | NetBSD | | 291 | | | | | | 6.0.4 | | 292 | | | | | | | | | 293 | | | | | | NetBSD | | 294 | | | | | | 6.0.5 | | 295 | | | | | | | | | 296 | | | | | | NetBSD | | 297 | | | | | | 6.0.6 | | 298 | | | | | | | | 299 | | | | | *--NetBSD | | 300 | | | | | 6.1 | | 301 | | FreeBSD | | | | | 302 | | 8.4 | | NetBSD | | 303 | | | | | 6.1.1 | | 304 | | | | | | | 305 | FreeBSD | | NetBSD | | 306 | 9.2 | | 6.1.2 | | 307 | | Mac OS X | | | | 308 | | 10.9 | | OpenBSD 5.4 | 309 | `-----. | | | | DragonFly 3.6.0 310 | \ | | | | | 311 *--FreeBSD | | | NetBSD | | 312 | 10.0 | | | 6.1.3 | | 313 | | | | | | | | 314 | | | | | | | DragonFly 3.6.1 315 | | | | | | | | 316 | | | | | | | | 317 | | | | | | | DragonFly 3.6.2 318 | | | | | NetBSD | | 319 | | | | | 6.1.4 | | 320 | | | | | | | | 321 | | | | | | OpenBSD 5.5 | 322 | | | | | | | | 323 | | | | | | | DragonFly 3.8.0 324 | | | | | | | | 325 | | | | | | | | 326 | | | | | | | DragonFly 3.8.1 327 | | | | | | | | 328 | | | | | | | | 329 | | | | | | | DragonFly 3.6.3 330 | | | | | | | | 331 | | FreeBSD | | | | | 332 | | 9.3 | | | | | 333 | | | | NetBSD | DragonFly 3.8.2 334 | | | | 6.1.5 | | 335 | | Mac OS X | | | 336 | | 10.10 | | | 337 | | | | OpenBSD 5.6 | 338 | FreeBSD | | | | 339 | 10.1 | | | DragonFly 4.0.1 340 | | | | | | 341 | | | | | DragonFly 4.0.2 342 | | | | | | 343 | | | | | DragonFly 4.0.3 344 | | | | | | 345 | | | | | DragonFly 4.0.4 346 | | | | | | 347 | | | | | DragonFly 4.0.5 348 | | | | | | 349 | | | | OpenBSD 5.7 | 350 | | | | | DragonFly 4.2.0 351 | FreeBSD | | | | 352 | 10.2 | | | | 353 | | macOS *--NetBSD 7.0 | | 354 | | 10.11 | | | OpenBSD 5.8 | 355 | | | | | `--. | DragonFly 4.4.1 356 | FreeBSD | | | | OpenBSD 5.9 | 357 | 10.3 | | | | | | 358 | | | | | NetBSD | | 359 | | | | | 7.0.1 | | 360 | `------. | | | | | DragonFly 4.6.0 361 | | | | | | | | 362 | | | | | | | | 363 *--FreeBSD | macOS | | | OpenBSD 6.0 | 364 | 11.0 | 10.12 | | NetBSD | | 365 | | | | | | 7.0.2 | | 366 | | | | | | | | 367 | | | | | *--NetBSD | | 368 | | | | | | 7.1 | | 369 | | | | | | | | | 370 | | | | | | | | | 371 | | | macOS | | | | DragonFly 4.8.0 372 | | | 10.13 | | | OpenBSD 6.1 | 373 | FreeBSD | | | | | | DragonFly 5.0.0 374 | 11.1 FreeBSD | | | | | | 375 | | 10.4 | | | | OpenBSD 6.2 DragonFly 5.0.1 376 | | | | | | | | 377 | `------. | | | NetBSD | DragonFly 5.0.2 378 | | | | | 7.1.1 | | 379 | | | | | | | | 380 | | | | | NetBSD | | 381 | | | | | 7.1.2 `--. | 382 | | | | | | | 383 | | | | `-----. OpenBSD 6.3 | 384 | | | *--NetBSD | | DragonFly 5.2.0 385 | | | | 8.0 | | | 386 | | | | | | | DragonFly 5.2.1 387 | | | | | | | | 388 | | | | | | | DragonFly 5.2.2 389 | FreeBSD | | | *--NetBSD | | 390 | 11.2 | | | 7.2 | | 391 | | macOS | | | | 392 | | 10.14 | | OpenBSD 6.4 | 393 | | | | | | | 394 | | | | | | DragonFly 5.4.0 395 *--FreeBSD | | | | | | 396 | 12.0 | | | | | DragonFly 5.4.1 397 | | | | | | OpenBSD 6.5 | 398 | | | | | | | | 399 | | | | | NetBSD | | 400 | | | | | 8.1 | DragonFly 5.6 401 | | | | | | | | 402 | | | | | | | DragonFly 5.6.1 403 | | FreeBSD macOS | | | | 404 | | 11.3 10.15 | | | | 405 | FreeBSD | | | | OpenBSD 6.6 | 406 | 12.1 | macOS | `-------. | | 407 | | | 10.15.1 | | | DragonFly 5.6.2 408 | | | | *--NetBSD | | | 409 | | | | | 9.0 | | | 410 | | | | | | | | | 411 | | | | | | | | DragonFly 5.8 412 | | | | | | | | | 413 | | | | | | | | DragonFly 5.6.3 414 | | | | | | NetBSD | | 415 | | | | | | 8.2 | | 416 | | | | | | | | DragonFly 5.8.1 417 | | | | | | | OpenBSD 6.7 | 418 | | FreeBSD | | | | | | 419 | | 11.4 | | | | | | 420 | | | | | | | DragonFly 5.8.2 421 | | | | | | | DragonFly 5.8.3 422 | | | | NetBSD | OpenBSD 6.8 | 423 | | | | 9.1 | | | 424 | FreeBSD macOS | | | | | 425 | 12.2 11 | | | | | 426 | | | | | | | | 427 | `------. | | | | | | 428 *--FreeBSD | | | | | | | 429 | 13.0 | | | NetBSD | OpenBSD 6.9 DragonFly 6.0.0 430 | | | | | 9.2 | | | 431 | | | | | | | | DragonFly 6.0.1 432 | | FreeBSD macOS | | | OpenBSD 7.0 | 433 | | 12.3 12 | | | | | 434 | | | | | | | | DragonFly 6.2.1 435 | | | | | | | OpenBSD 7.1 | 436 | FreeBSD | | | | | | | 437 | 13.1 | | | | | | | 438 | | | | | | | | DragonFly 6.2.2 439 | | | | | NetBSD | | | 440 | | | | | 9.3 | | | 441 | | | macOS | | | OpenBSD 7.2 | 442 | | | 13 | | | | | 443 | | FreeBSD | | | | | | 444 | | 12.4 | | | | | | 445 | | | | | | | DragonFly 6.4.0 446 | | | | | | OpenBSD 7.3 | 447 | FreeBSD | | | | | | 448 | 13.2 | | | | | | 449 | | | | | | | | 450 | `------. | | . | | | 451 | | macOS | \ | | | 452 | | 14 | \ . OpenBSD 7.4 | 453 *--FreeBSD | | | \ \ | | 454 | 14.0 | | | \ \ | | 455 | | FreeBSD | | | | | | 456 | | 13.3 | *--NetBSD | | | | 457 | | | | | 10.0 | | OpenBSD | 458 | | | | | | | | 7.5 | 459 | | | | | | NetBSD | | | 460 | | | | | | 9.4 | | | 461 | | | | | | NetBSD | | 462 | FreeBSD | | | | 8.3 | | 463 | 14.1 | | | | | | 464 | FreeBSD macOS | | | | 465 | 13.4 15 | | OpenBSD | 466 | | | | 7.6 | 467 | | | NetBSD | | 468 | | | 10.1 | | 469 | | | | | 470 | | | OpenBSD DragonFly 6.4.1 471 | | | 7.7 DragonFly 6.4.2 472 | | | | | 473FreeBSD 15 | NetBSD 11 OpenBSD DragonFly 474 -current | -current -current -current 475 | | | | | 476 v v v v v 477 478Time 479---------------- 480 481Time tolerance +/- 6 months, depending on which book/article you read; if it was 482the announcement in Usenet or if it was available as tape. 483 484[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 485 Quarterman. The Design and Implementation of the 4.4BSD Operating System. 486[APL] Apple website [https://www.apple.com/macosx/] 487[BSDI] Berkeley Software Design, Inc. 488[DFB] DragonFlyBSD Project, The. 489[DOC] README, COPYRIGHT on tape. 490[FBD] FreeBSD Project, The. 491[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, Volume 11, 492 Info 4, April, 1987. 493[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 494 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 495[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. Changes in the 496 Kernel in 2.9BSD. Second Berkeley Software Distribution UNIX Version 2.9, 497 July, 1983. 498[NBD] NetBSD Project, The. 499[OBD] OpenBSD Project, The. 500[QCU] Salus, Peter H. A quarter century of UNIX. ISBN 0201547775, EAN 501 9780201547771 502[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 503[TUHS] The Unix Historical Society. https://minnie.tuhs.org/Unix_History/. 504[USE] Usenet announcement. 505[WRS] Wind River Systems, Inc. 506[dmr] Dennis Ritchie, via E-Mail 507 508Multics 1965 509UNIX Summer 1969 510 DEC PDP-7 511First Edition 1971-11-03 [QCU] 512 DEC PDP-11/20, Assembler 513Second Edition 1972-06-12 [QCU] 514 10 UNIX installations 515Third Edition 1973-02-xx [QCU] 516 Pipes, 16 installations 517Fourth Edition 1973-11-xx [QCU] 518 rewriting in C effected, 519 above 30 installations 520Fifth Edition 1974-06-xx [QCU] 521 above 50 installations 522Sixth Edition 1975-05-xx [QCU] 523 port to DEC Vax 524Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 525 first portable UNIX 526Eighth Edition 1985-02-xx [QCU] 527 VAX 11/750, VAX 11/780 [dmr] 528 descended from 4.1c BSD [dmr] 529 descended from 4.1 BSD [44B] 530 scooping-out and replacement of the character-device 531 and networking part by the streams mechanism 532 533Ninth Edition 1986-09-xx [QCU] 534Tenth Edition 1989-10-xx [QCU] 535 5361BSD late 1977 537 1978-01-16 [DOC] 538 1978-03-09 [QCU] 539 PDP-11, Pascal, ex(1) 540 30 free copies of 1BSD sent out 541 35 tapes sold for 50 USD [QCU] 5422BSD mid 1978 [QCU] 1979-05-10 [TUHS] 543 75 2BSD tapes shipped 5442.79BSD 1980-04-xx [TUHS] 5452.8BSD 1981-07-xx [KSJ] 546 First 2BSD with bootable V7 kernel plus 547 community fixes. 5482.8.1BSD 1982-01-xx [QCU] 549 set of performance improvements 5502.9BSD 1983-07-xx [KSJ] 5512.9.1BSD 1983-11-xx [TUHS] 5522.9BSD-Seismo 1985-08-xx [SMS] 5532.10BSD 1987-04-xx [KKK] 5542.10.1BSD 1989-01-xx [SMS] 5552.11BSD 1991-03-14 [SMS] 5562.11BSD rev #430 1999-12-13 [SMS] 557 55832V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5593BSD late 1979 [QCU] March 1980 [TUHS] 560 virtual memory, page replacement, 561 demand paging 5624.0BSD 1980-10-xx 5634.1BSD 1981-07-08 [DOC] 5644.1aBSD 1982-04-xx 565 alpha release, 100 sites, networking [44B] 5664.1bBSD internal release, fast filesystem [44B] 5674.1cBSD late 1982 568 beta release, IPC [44B] 5694.2BSD 1983-09-xx [QCU] 570 1983-08-03 [DOC] 5714.3BSD 1986-06-xx [QCU] 572 1986-04-05 [KB], [DOC] 5734.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5744.3BSD NET/1 1988-11-xx [QCU] 575 1989-01-01 [DOC] 5764.3BSD Reno 1990-06-29 [QCU], [DOC] 5774.3BSD NET/2 1991-06-28 [QCU], [DOC] 578 579BSD/386 ALPHA 1991-12-xx [BSDI] 580 first code released to people outside BSDI 581386BSD 0.0 1992-02-xx [DOC] 582BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 583BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 584386BSD 0.1 1992-07-28 [DOC] 5854.4BSD Alpha 1992-07-07 586BSD/386 0.9.3 1992-10-xx [BSDI] 587 first external gamma; G customers 588BSD/386 0.9.4 1992-12-xx [BSDI] 589 would have been 1.0 except for request 590 for preliminary injunction 591BSD/386 1.0 1993-03-xx [BSDI] 592 injunction denied; first official release 593NetBSD 0.8 1993-04-20 [NBD] 5944.4BSD 1993-06-01 [USE] 595NetBSD 0.9 1993-08-23 [NBD] 596FreeBSD 1.0 1993-11-01 [FBD] 597FreeBSD 1.0.2 1993-11-14 [FBD] 598 supersedes 1.0 13 days after release. 599BSD/386 1.1 1994-02-xx [BSDI] 6004.4BSD Lite 1994-03-01 [USE] 601FreeBSD 1.1 1994-05-07 [FBD] 602FreeBSD 1.1.5 1994-06-30 [FBD] 603FreeBSD 1.1.5.1 1994-07-05 [FBD] 604 supersedes 1.1.5 5 days after release. 605NetBSD 1.0 1994-10-26 [NBD] 606386BSD 1.0 1994-11-12 [USE] 607FreeBSD 2.0 1994-11-23 [FBD] 608BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 609FreeBSD 2.0.5 1995-06-10 [FBD] 610BSD/OS 2.0.1 1995-06-xx [BSDI] 6114.4BSD Lite Release 2 1995-06-xx [44B] 612 the true final distribution from the CSRG 613FreeBSD 2.1.0 1995-11-19 [FBD] 614NetBSD 1.1 1995-11-26 [NBD] 615BSD/OS 2.1 1996-01-xx [BSDI] 616FreeBSD 2.1.5 1996-07-14 [FBD] 617NetBSD 1.2 1996-10-04 [NBD] 618OpenBSD 2.0 1996-10-18 [OBD] 619FreeBSD 2.1.6 1996-11-16 [FBD] 620FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 621Rhapsody 1997-xx-xx 622FreeBSD 2.1.7 1997-02-20 [FBD] 623BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 624FreeBSD 2.2.0 1997-03-16 [FBD] 625FreeBSD 2.2.1 1997-03-25 [FBD] 626FreeBSD 2.2.2 1997-05-16 [FBD] 627NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 628OpenBSD 2.1 1997-06-01 [OBD] 629FreeBSD 2.2.5 1997-10-22 [FBD] 630OpenBSD 2.2 1997-12-01 [OBD] 631NetBSD 1.3 1998-01-04 [NBD] 632FreeBSD 2.2.6 1998-03-25 [FBD] 633NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 634BSD/OS 3.1 1998-03-xx [BSDI] 635OpenBSD 2.3 1998-05-19 [OBD] 636NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 637FreeBSD 2.2.7 1998-07-22 [FBD] 638BSD/OS 4.0 1998-08-xx [BSDI] 639 2-lock MP support, ELF executables 640FreeBSD 3.0 1998-10-16 [FBD] 641 FreeBSD-3.0 is a snapshot from -current, 642 while 3.1 and 3.2 are from 3.x-stable which 643 was branched quite some time after 3.0-release 644FreeBSD 2.2.8 1998-11-29 [FBD] 645OpenBSD 2.4 1998-12-01 [OBD] 646NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 647FreeBSD 3.1 1999-02-15 [FBD] 648BSD/OS 4.0.1 1999-03-xx [BSDI] 649NetBSD 1.4 1999-05-12 [NBD] 650FreeBSD 3.2 1999-05-17 [FBD] 651OpenBSD 2.5 1999-05-19 [OBD] 652NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 653FreeBSD 3.3 1999-09-17 [FBD] 654OpenBSD 2.6 1999-12-01 [OBD] 655FreeBSD 3.4 1999-12-20 [FBD] 656BSD/OS 4.1 1999-12-xx [BSDI] 657FreeBSD 4.0 2000-03-13 [FBD] 658NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 659OpenBSD 2.7 2000-06-15 [OBD] 660FreeBSD 3.5 2000-06-24 [FBD] 661FreeBSD 4.1 2000-07-27 [FBD] 662FreeBSD 3.5.1 2000-07-28 [FBD] 663FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 664FreeBSD 4.2 2000-11-21 [FBD] 665NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 666BSD/OS 4.2 2000-11-29 [BSDI] 667OpenBSD 2.8 2000-12-01 [OBD] 668NetBSD 1.5 2000-12-06 [NBD] 669Mac OS X 10.0 2001-03-24 [APL] 670FreeBSD 4.3 2001-04-20 [FBD] 671OpenBSD 2.9 2001-06-01 [OBD] 672NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 673NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 674FreeBSD 4.4 2001-09-18 [FBD] 675Mac OS X 10.1 2001-09-29 [APL] 676OpenBSD 3.0 2001-12-01 [OBD] 677FreeBSD 4.5 2002-01-29 [FBD] 678BSD/OS 4.3 2002-03-14 [WRS] 679OpenBSD 3.1 2002-05-19 [OBD] 680FreeBSD 4.6 2002-06-15 [FBD] 681NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 682FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 683Mac OS X 10.2 2002-08-23 [APL] 684NetBSD 1.6 2002-09-14 [NBD] 685FreeBSD 4.7 2002-10-08 [FBD] 686OpenBSD 3.2 2002-11-01 [OBD] 687FreeBSD 5.0 2003-01-17 [FBD] 688 FreeBSD 5.0 is a separate branch off of 689 -current, similar to 3.0. 690FreeBSD 4.8 2003-04-03 [FBD] 691NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 692OpenBSD 3.3 2003-05-01 [OBD] 693BSD/OS 5.0 2003-05-?? [WRS] 694FreeBSD 5.1 2003-06-09 [FBD] 695Mac OS X 10.3 2003-10-24 [APL] 696FreeBSD 4.9 2003-10-28 [FBD] 697BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 698OpenBSD 3.4 2003-11-01 [OBD] 699FreeBSD 5.2 2004-01-12 [FBD] 700FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 701NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 702OpenBSD 3.5 2004-04-01 [OBD] 703FreeBSD 4.10 2004-05-27 [FBD] 704DragonFly 1.0 2004-07-12 [DFB] 705OpenBSD 3.6 2004-10-29 [OBD] 706FreeBSD 5.3 2004-11-06 [FBD] 707NetBSD 2.0 2004-12-09 [NBD] 708FreeBSD 4.11 2005-01-25 [FBD] 709DragonFly 1.2.0 2005-04-08 [DFB] 710NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 711Mac OS X 10.4 2005-04-29 [APL] 712FreeBSD 5.4 2005-05-09 [FBD] 713OpenBSD 3.7 2005-05-19 [OBD] 714NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 715OpenBSD 3.8 2005-11-01 [OBD] 716FreeBSD 6.0 2005-11-01 [FBD] 717NetBSD 2.1 2005-11-02 [NBD] 718NetBSD 3.0 2005-12-23 [NBD] 719DragonFly 1.4.0 2006-01-08 [DFB] 720FreeBSD 2.2.9 2006-04-01 [FBD] 721OpenBSD 3.9 2006-05-01 [OBD] 722FreeBSD 6.1 2006-05-08 [FBD] 723FreeBSD 5.5 2006-05-25 [FBD] 724NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 725DragonFly 1.6.0 2006-07-24 [DFB] 726OpenBSD 4.0 2006-11-01 [OBD] 727NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 728NetBSD 3.1 2006-11-04 [NBD] 729FreeBSD 6.2 2007-01-15 [FBD] 730DragonFly 1.8.0 2007-01-30 [DFB] 731OpenBSD 4.1 2007-05-01 [OBD] 732DragonFly 1.10.0 2007-08-06 [DFB] 733Mac OS X 10.5 2007-10-26 [APL] 734OpenBSD 4.2 2007-11-01 [OBD] 735NetBSD 4.0 2007-12-19 [NBD] 736FreeBSD 6.3 2008-01-18 [FBD] 737DragonFly 1.12.0 2008-02-26 [DFB] 738FreeBSD 7.0 2008-02-27 [FBD] 739OpenBSD 4.3 2008-05-01 [OBD] 740DragonFly 2.0.0 2008-07-21 [DFB] 741OpenBSD 4.4 2008-11-01 [OBD] 742FreeBSD 6.4 2008-11-28 [FBD] 743FreeBSD 7.1 2009-01-04 [FBD] 744DragonFly 2.2.0 2009-02-17 [DFB] 745NetBSD 5.0 2009-04-29 [NBD] 746OpenBSD 4.5 2009-05-01 [OBD] 747FreeBSD 7.2 2009-05-04 [FBD] 748Mac OS X 10.6 2009-06-08 [APL] 749NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 750DragonFly 2.4.0 2009-09-16 [DFB] 751OpenBSD 4.6 2009-10-18 [OBD] 752FreeBSD 8.0 2009-11-26 [FBD] 753NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 754FreeBSD 7.3 2010-03-23 [FBD] 755DragonFly 2.6.0 2010-03-28 [DFB] 756OpenBSD 4.7 2010-05-19 [OBD] 757FreeBSD 8.1 2010-07-24 [FBD] 758DragonFly 2.8.2 2010-10-30 [DFB] 759OpenBSD 4.8 2010-11-01 [OBD] 760NetBSD 5.1 2010-11-19 [NBD] 761FreeBSD 7.4 2011-02-24 [FBD] 762FreeBSD 8.2 2011-02-24 [FBD] 763DragonFly 2.10.1 2011-04-26 [DFB] 764OpenBSD 4.9 2011-05-01 [OBD] 765Mac OS X 10.7 2011-07-20 [APL] 766OpenBSD 5.0 2011-11-01 [OBD] 767FreeBSD 9.0 2012-01-12 [FBD] 768NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 769DragonFly 3.0.1 2012-02-21 [DFB] 770FreeBSD 8.3 2012-04-18 [FBD] 771OpenBSD 5.1 2012-05-01 [OBD] 772Mac OS X 10.8 2012-07-25 [APL] 773NetBSD 6.0 2012-10-17 [NBD] 774OpenBSD 5.2 2012-11-01 [OBD] 775DragonFly 3.2.1 2012-11-02 [DFB] 776NetBSD 5.2 2012-12-03 [NBD] 777NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 778FreeBSD 9.1 2012-12-30 [FBD] 779DragonFly 3.4.1 2013-04-29 [DFB] 780OpenBSD 5.3 2013-05-01 [OBD] 781NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 782NetBSD 6.1 2013-05-18 [NBD] 783FreeBSD 8.4 2013-06-07 [FBD] 784NetBSD 6.1.1 2013-08-22 [NBD] 785NetBSD 5.1.3 2013-09-29 [NBD] 786NetBSD 5.2.1 2013-09-29 [NBD] 787FreeBSD 9.2 2013-09-30 [FBD] 788NetBSD 6.0.3 2013-09-30 [NBD] 789NetBSD 6.1.2 2013-09-30 [NBD] 790Mac OS X 10.9 2013-10-22 [APL] 791OpenBSD 5.4 2013-11-01 [OBD] 792DragonFly 3.6.0 2013-11-25 [DFB] 793FreeBSD 10.0 2014-01-20 [FBD] 794NetBSD 5.1.4 2014-01-25 [NBD] 795NetBSD 5.2.2 2014-01-25 [NBD] 796NetBSD 6.0.4 2014-01-25 [NBD] 797NetBSD 6.1.3 2014-01-25 [NBD] 798DragonFly 3.6.1 2014-02-22 [DFB] 799DragonFly 3.6.2 2014-04-10 [DFB] 800NetBSD 6.0.5 2014-04-12 [NBD] 801NetBSD 6.1.4 2014-04-12 [NBD] 802OpenBSD 5.5 2014-05-01 [OBD] 803DragonFly 3.8.0 2014-06-04 [DFB] 804DragonFly 3.8.1 2014-06-16 [DFB] 805DragonFly 3.6.3 2014-06-17 [DFB] 806FreeBSD 9.3 2014-07-05 [FBD] 807DragonFly 3.8.2 2014-08-08 [DFB] 808NetBSD 6.0.6 2014-09-22 [NBD] 809NetBSD 6.1.5 2014-09-22 [NBD] 810Mac OS X 10.10 2014-10-16 [APL] 811OpenBSD 5.6 2014-11-01 [OBD] 812FreeBSD 10.1 2014-11-14 [FBD] 813DragonFly 4.0.1 2014-11-25 [DFB] 814DragonFly 4.0.2 2015-01-07 [DFB] 815DragonFly 4.0.3 2015-01-21 [DFB] 816DragonFly 4.0.4 2015-03-09 [DFB] 817DragonFly 4.0.5 2015-03-23 [DFB] 818OpenBSD 5.7 2015-05-01 [OBD] 819DragonFly 4.2.0 2015-06-29 [DFB] 820FreeBSD 10.2 2015-08-13 [FBD] 821NetBSD 7.0 2015-09-25 [NBD] 822OS X 10.11 2015-09-30 [APL] 823OpenBSD 5.8 2015-10-18 [OBD] 824DragonFly 4.4.1 2015-12-07 [DFB] 825OpenBSD 5.9 2016-03-29 [OBD] 826FreeBSD 10.3 2016-04-04 [FBD] 827NetBSD 7.0.1 2016-05-22 [NBD] 828DragonFly 4.6.0 2016-08-02 [DFB] 829OpenBSD 6.0 2016-09-01 [OBD] 830macOS 10.12 2016-09-20 [APL] 831FreeBSD 11.0 2016-10-10 [FBD] 832NetBSD 7.0.2 2016-10-21 [NBD] 833NetBSD 7.1 2017-03-11 [NBD] 834DragonFly 4.8.0 2017-03-27 [DFB] 835OpenBSD 6.1 2017-04-11 [OBD] 836FreeBSD 11.1 2017-07-26 [FBD] 837macOS 10.13 2017-09-25 [APL] 838FreeBSD 10.4 2017-10-03 [FBD] 839OpenBSD 6.2 2017-10-09 [OBD] 840DragonFly 5.0.0 2017-10-16 [DFB] 841DragonFly 5.0.1 2017-11-06 [DFB] 842DragonFly 5.0.2 2017-12-04 [DFB] 843NetBSD 7.1.1 2017-12-22 [NBD] 844NetBSD 7.1.2 2018-03-15 [NBD] 845OpenBSD 6.3 2018-04-02 [OBD] 846DragonFly 5.2.0 2018-04-10 [DFB] 847DragonFly 5.2.1 2018-05-20 [DFB] 848DragonFly 5.2.2 2018-06-18 [DFB] 849FreeBSD 11.2 2018-06-27 [FBD] 850NetBSD 8.0 2018-07-17 [NBD] 851NetBSD 7.2 2018-08-29 [NBD] 852macOS 10.14 2018-09-24 [APL] 853OpenBSD 6.4 2018-10-18 [OBD] 854DragonFly 5.4.0 2018-12-03 [DFB] 855FreeBSD 12.0 2018-12-11 [FBD] 856DragonFly 5.4.1 2018-12-24 [DFB] 857OpenBSD 6.5 2019-05-01 [OBD] 858NetBSD 8.1 2019-06-04 [NBD] 859DragonFly 5.6 2019-06-17 [DFB] 860DragonFly 5.6.1 2019-06-19 [DFB] 861FreeBSD 11.3 2019-07-09 [FBD] 862DragonFly 5.6.2 2019-08-11 [DFB] 863OpenBSD 6.6 2019-10-17 [OBD] 864macOS 10.15 2019-10-07 [APL] 865macOS 10.15.1 2019-10-29 [APL] (security/critical release) 866FreeBSD 12.1 2019-11-04 [FBD] 867NetBSD 9.0 2020-02-14 [NBD] 868DragonFly 5.8 2020-03-03 [DFB] 869DragonFly 5.6.3 2020-03-11 [DFB] 870NetBSD 8.2 2020-03-31 [NBD] 871DragonFly 5.8.1 2020-05-06 [DFB] 872OpenBSD 6.7 2020-05-19 [OBD] 873FreeBSD 11.4 2020-06-16 [FBD] 874DragonFly 5.8.2 2020-09-23 [DFB] 875DragonFly 5.8.3 2020-09-24 [DFB] 876OpenBSD 6.8 2020-10-18 [OBD] 877NetBSD 9.1 2020-10-18 [NBD] 878FreeBSD 12.2 2020-10-27 [FBD] 879macOS 11 2020-11-12 [APL] 880FreeBSD 13.0 2021-04-13 [FBD] 881OpenBSD 6.9 2021-05-01 [OBD] 882DragonFly 6.0 2021-05-08 [DFB] 883NetBSD 9.2 2021-05-12 [NBD] 884DragonFly 6.0.1 2021-10-12 [DFB] 885OpenBSD 7.0 2021-10-14 [OBD] 886macOS 12 2021-10-25 [APL] 887FreeBSD 12.3 2021-12-01 [FBD] 888DragonFly 6.2.1 2022-01-09 [DFB] 889OpenBSD 7.1 2022-04-21 [OBD] 890FreeBSD 13.1 2022-05-17 [FBD] 891DragonFly 6.2.2 2022-06-09 [DFB] 892NetBSD 9.3 2022-08-04 [NBD] 893OpenBSD 7.2 2022-10-20 [OBD] 894macOS 13 2022-10-24 [APL] 895FreeBSD 12.4 2022-12-05 [FBD] 896DragonFly 6.4 2022-12-30 [DFB] 897OpenBSD 7.3 2023-04-10 [OBD] 898FreeBSD 13.2 2023-04-11 [FBD] 899macOS 14 2023-09-26 [APL] 900OpenBSD 7.4 2023-10-16 [OBD] 901FreeBSD 14.0 2023-11-20 [FBD] 902FreeBSD 13.3 2024-03-05 [FBD] 903NetBSD 10.0 2024-03-28 [NBD] 904OpenBSD 7.5 2024-04-05 [OBD] 905NetBSD 9.4 2024-04-20 [NBD] 906NetBSD 8.3 2024-05-07 [NBD] 907FreeBSD 14.1 2024-07-04 [FBD] 908macOS 15 2024-09-16 [APL] 909FreeBSD 13.4 2024-09-17 [FBD] 910OpenBSD 7.6 2024-10-08 [OBD] 911NetBSD 10.1 2024-12-16 [NBD] 912OpenBSD 7.7 2025-04-28 [OBD] 913DragonFly 6.4.1 2025-04-30 [DFB] 914DragonFly 6.4.2 2025-05-09 [DFB] 915 916Bibliography 917------------------------ 918 919Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 920Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 921System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 922 923Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 924Company, Inc., 1994. ISBN 0-201-54777-5 925 926McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 927Quarterman. The Design and Implementation of the 4.4BSD Operating 928System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 929 930McKusick, Marshall Kirk, George Neville-Neil. The Design and 931Implementation of the FreeBSD Operating System. 932Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 933 934McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 935Design and Implementation of the FreeBSD Operating System, 2nd Edition. 936Pearson Education, Inc., 2014. ISBN 0-321-96897-2 937 938Doug McIlroy. Research Unix Reader. 939 940Michael G. Brown. The Role of BSD in the Development of Unix. 941Presented to the Tasmanian Unix Special Interest Group of the 942Australian Computer Society, Hobart, August 1993. 943 944Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 945URL: https://web.archive.org/web/20081230094857/http://www.byte.com/art/9410/sec8/art3.htm 946 947Andreas Klemm, Lars Köller. If you're going to San Francisco ... 948Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 949 950FreeBSD Release Information 951URL: https://www.FreeBSD.org/releases/ 952 953Manual pages for FreeBSD and ports 954URL: https://man.FreeBSD.org/cgi/man.cgi 955 956UNIX history graphing project 957URL: https://minnie.tuhs.org/Unix_History/index.html 958 959UNIX history 960URL: https://www.levenez.com/unix/ 961 962James Howard: The BSD Family Tree 963URL: https://web.archive.org/web/20090427195917/http://ezine.daemonnews.org/200104/bsd_family.html 964("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 965 966 967Acknowledgments 968--------------- 969 970Josh Gilliam for suggestions, bug fixes, and finding very old 971original BSD announcements from Usenet or tapes. 972 973Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 974 975-- 976Copyright (c) 1997-2023 Wolfram Schneider <wosch@FreeBSD.org> 977URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree 978 979$NetBSD: bsd-family-tree,v 1.87 2025/08/31 14:46:22 ast Exp $ 980