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 | FreeBSD macOS | 9.1 | | | 424 | 12.2 11 | | | | | 425 | | | | | | | | 426 | `------. | | | | | | 427 | | | | | | | | 428 *--FreeBSD | | | | | | | 429 | 13.0 | | | NetBSD | OpenBSD 6.9 DragonFly 6.0.0 430 | | | | | 9.2 | | | 431 | | | | | | | | DragonFly 6.0.1 432 | | | | | | | | | 433 | | FreeBSD macOS | | | OpenBSD 7.0 | 434 | | 12.3 12 | | | | | 435 | | | | | | | | DragonFly 6.2.1 436 | | | | | | | OpenBSD 7.1 | 437 | FreeBSD | | | | | | | 438 | 13.1 | | | | | | | 439 | | | | | | | | DragonFly 6.2.2 440 | | | | | NetBSD | | | 441 | | | macOS | 9.3 | 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 | | | | | 453 | | | | | | OpenBSD 7.4 | 454 *--FreeBSD | | | | | | | 455 | 14.0 | | | | | | | 456 | | | | | | | | | 457 | | FreeBSD | | NetBSD | | | 458 | | 13.3 | | 9.4 | | | 459 | | | | | | | | 460 | | | | *--NetBSD | | | 461 | | | | | 10.0 | | | 462 | | | | | | | | | 463 | | | | | | | OpenBSD 7.5 | 464 | | | | | | NetBSD | | 465 | | | | | | 8.3 | | 466 | FreeBSD | | | | | | 467 | 14.1 | | | | | | 468 | | | macOS | | | | 469 | | | 15 | | | | 470 | | FreeBSD | | | | | 471 | | 13.4 | | | OpenBSD 7.6 | 472 | FreeBSD | | | | | | 473 | 14.2 | | | | | | 474 | | | | NetBSD | | 475 | | | | 10.1 | | 476 | FreeBSD | | | | 477 | 13.5 | | | | 478 | | | | | 479FreeBSD 15 -current | NetBSD -current OpenBSD -current DragonFly -current 480 | | | | | 481 v v v v v 482 483Time 484---------------- 485 486Time tolerance +/- 6 months, depending on which book/article you read; if it was 487the announcement in Usenet or if it was available as tape. 488 489[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 490 Quarterman. The Design and Implementation of the 4.4BSD Operating System. 491[APL] Apple website [https://www.apple.com/macosx/] 492[BSDI] Berkeley Software Design, Inc. 493[DFB] DragonFlyBSD Project, The. 494[DOC] README, COPYRIGHT on tape. 495[FBD] FreeBSD Project, The. 496[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, Volume 11, 497 Info 4, April, 1987. 498[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 499 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 500[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. Changes in the 501 Kernel in 2.9BSD. Second Berkeley Software Distribution UNIX Version 2.9, 502 July, 1983. 503[NBD] NetBSD Project, The. 504[OBD] OpenBSD Project, The. 505[QCU] Salus, Peter H. A quarter century of UNIX. ISBN 0201547775, EAN 506 9780201547771 507[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 508[TUHS] The Unix Historical Society. https://minnie.tuhs.org/Unix_History/ 509[USE] Usenet announcement. 510[WRS] Wind River Systems, Inc. 511[dmr] Dennis Ritchie, via E-Mail 512 513Multics 1965 514UNIX Summer 1969 515 DEC PDP-7 516First Edition 1971-11-03 [QCU] 517 DEC PDP-11/20, Assembler 518Second Edition 1972-06-12 [QCU] 519 10 UNIX installations 520Third Edition 1973-02-xx [QCU] 521 Pipes, 16 installations 522Fourth Edition 1973-11-xx [QCU] 523 rewriting in C effected, 524 above 30 installations 525Fifth Edition 1974-06-xx [QCU] 526 above 50 installations 527Sixth Edition 1975-05-xx [QCU] 528 port to DEC Vax 529Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 530 first portable UNIX 531Eighth Edition 1985-02-xx [QCU] 532 VAX 11/750, VAX 11/780 [dmr] 533 descended from 4.1c BSD [dmr] 534 descended from 4.1 BSD [44B] 535 scooping-out and replacement of the character-device 536 and networking part by the streams mechanism 537 538Ninth Edition 1986-09-xx [QCU] 539Tenth Edition 1989-10-xx [QCU] 540 5411BSD late 1977 542 1978-01-16 [DOC] 543 1978-03-09 [QCU] 544 PDP-11, Pascal, ex(1) 545 30 free copies of 1BSD sent out 546 35 tapes sold for 50 USD [QCU] 5472BSD mid 1978 [QCU] 1979-05-10 [TUHS] 548 75 2BSD tapes shipped 5492.79BSD 1980-04-xx [TUHS] 5502.8BSD 1981-07-xx [KSJ] 551 First 2BSD with bootable V7 kernel plus 552 community fixes. 5532.8.1BSD 1982-01-xx [QCU] 554 set of performance improvements 5552.9BSD 1983-07-xx [KSJ] 5562.9.1BSD 1983-11-xx [TUHS] 5572.9BSD-Seismo 1985-08-xx [SMS] 5582.10BSD 1987-04-xx [KKK] 5592.10.1BSD 1989-01-xx [SMS] 5602.11BSD 1991-03-14 [SMS] 5612.11BSD rev #430 1999-12-13 [SMS] 562 56332V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5643BSD late 1979 [QCU] March 1980 [TUHS] 565 virtual memory, page replacement, 566 demand paging 5674.0BSD 1980-10-xx 5684.1BSD 1981-07-08 [DOC] 5694.1aBSD 1982-04-xx 570 alpha release, 100 sites, networking [44B] 5714.1bBSD internal release, fast filesystem [44B] 5724.1cBSD late 1982 573 beta release, IPC [44B] 5744.2BSD 1983-09-xx [QCU] 575 1983-08-03 [DOC] 5764.3BSD 1986-06-xx [QCU] 577 1986-04-05 [KB], [DOC] 5784.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5794.3BSD NET/1 1988-11-xx [QCU] 580 1989-01-01 [DOC] 5814.3BSD Reno 1990-06-29 [QCU], [DOC] 5824.3BSD NET/2 1991-06-28 [QCU], [DOC] 583 584BSD/386 ALPHA 1991-12-xx [BSDI] 585 first code released to people outside BSDI 586386BSD 0.0 1992-02-xx [DOC] 587BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 588BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 589386BSD 0.1 1992-07-28 [DOC] 5904.4BSD Alpha 1992-07-07 591BSD/386 0.9.3 1992-10-xx [BSDI] 592 first external gamma; G customers 593BSD/386 0.9.4 1992-12-xx [BSDI] 594 would have been 1.0 except for request 595 for preliminary injunction 596BSD/386 1.0 1993-03-xx [BSDI] 597 injunction denied; first official release 598NetBSD 0.8 1993-04-20 [NBD] 5994.4BSD 1993-06-01 [USE] 600NetBSD 0.9 1993-08-23 [NBD] 601FreeBSD 1.0 1993-11-01 [FBD] 602FreeBSD 1.0.2 1993-11-14 [FBD] 603 supersedes 1.0 13 days after release. 604BSD/386 1.1 1994-02-xx [BSDI] 6054.4BSD Lite 1994-03-01 [USE] 606FreeBSD 1.1 1994-05-07 [FBD] 607FreeBSD 1.1.5 1994-06-30 [FBD] 608FreeBSD 1.1.5.1 1994-07-05 [FBD] 609 supersedes 1.1.5 5 days after release. 610NetBSD 1.0 1994-10-26 [NBD] 611386BSD 1.0 1994-11-12 [USE] 612FreeBSD 2.0 1994-11-23 [FBD] 613BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 614FreeBSD 2.0.5 1995-06-10 [FBD] 615BSD/OS 2.0.1 1995-06-xx [BSDI] 6164.4BSD Lite Release 2 1995-06-xx [44B] 617 the true final distribution from the CSRG 618FreeBSD 2.1.0 1995-11-19 [FBD] 619NetBSD 1.1 1995-11-26 [NBD] 620BSD/OS 2.1 1996-01-xx [BSDI] 621FreeBSD 2.1.5 1996-07-14 [FBD] 622NetBSD 1.2 1996-10-04 [NBD] 623OpenBSD 2.0 1996-10-18 [OBD] 624FreeBSD 2.1.6 1996-11-16 [FBD] 625FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 626Rhapsody 1997-xx-xx 627FreeBSD 2.1.7 1997-02-20 [FBD] 628BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 629FreeBSD 2.2.0 1997-03-16 [FBD] 630FreeBSD 2.2.1 1997-03-25 [FBD] 631FreeBSD 2.2.2 1997-05-16 [FBD] 632NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 633OpenBSD 2.1 1997-06-01 [OBD] 634FreeBSD 2.2.5 1997-10-22 [FBD] 635OpenBSD 2.2 1997-12-01 [OBD] 636NetBSD 1.3 1998-01-04 [NBD] 637FreeBSD 2.2.6 1998-03-25 [FBD] 638NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 639BSD/OS 3.1 1998-03-xx [BSDI] 640OpenBSD 2.3 1998-05-19 [OBD] 641NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 642FreeBSD 2.2.7 1998-07-22 [FBD] 643BSD/OS 4.0 1998-08-xx [BSDI] 644 2-lock MP support, ELF executables 645FreeBSD 3.0 1998-10-16 [FBD] 646 FreeBSD-3.0 is a snapshot from -current, 647 while 3.1 and 3.2 are from 3.x-stable which 648 was branched quite some time after 3.0-release 649FreeBSD 2.2.8 1998-11-29 [FBD] 650OpenBSD 2.4 1998-12-01 [OBD] 651NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 652FreeBSD 3.1 1999-02-15 [FBD] 653BSD/OS 4.0.1 1999-03-xx [BSDI] 654NetBSD 1.4 1999-05-12 [NBD] 655FreeBSD 3.2 1999-05-17 [FBD] 656OpenBSD 2.5 1999-05-19 [OBD] 657NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 658FreeBSD 3.3 1999-09-17 [FBD] 659OpenBSD 2.6 1999-12-01 [OBD] 660FreeBSD 3.4 1999-12-20 [FBD] 661BSD/OS 4.1 1999-12-xx [BSDI] 662FreeBSD 4.0 2000-03-13 [FBD] 663NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 664OpenBSD 2.7 2000-06-15 [OBD] 665FreeBSD 3.5 2000-06-24 [FBD] 666FreeBSD 4.1 2000-07-27 [FBD] 667FreeBSD 3.5.1 2000-07-28 [FBD] 668FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 669FreeBSD 4.2 2000-11-21 [FBD] 670NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 671BSD/OS 4.2 2000-11-29 [BSDI] 672OpenBSD 2.8 2000-12-01 [OBD] 673NetBSD 1.5 2000-12-06 [NBD] 674Mac OS X 10.0 2001-03-24 [APL] 675FreeBSD 4.3 2001-04-20 [FBD] 676OpenBSD 2.9 2001-06-01 [OBD] 677NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 678NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 679FreeBSD 4.4 2001-09-18 [FBD] 680Mac OS X 10.1 2001-09-29 [APL] 681OpenBSD 3.0 2001-12-01 [OBD] 682FreeBSD 4.5 2002-01-29 [FBD] 683BSD/OS 4.3 2002-03-14 [WRS] 684OpenBSD 3.1 2002-05-19 [OBD] 685FreeBSD 4.6 2002-06-15 [FBD] 686NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 687FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 688Mac OS X 10.2 2002-08-23 [APL] 689NetBSD 1.6 2002-09-14 [NBD] 690FreeBSD 4.7 2002-10-08 [FBD] 691OpenBSD 3.2 2002-11-01 [OBD] 692FreeBSD 5.0 2003-01-17 [FBD] 693 FreeBSD 5.0 is a separate branch off of 694 -current, similar to 3.0. 695FreeBSD 4.8 2003-04-03 [FBD] 696NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 697OpenBSD 3.3 2003-05-01 [OBD] 698BSD/OS 5.0 2003-05-?? [WRS] 699FreeBSD 5.1 2003-06-09 [FBD] 700Mac OS X 10.3 2003-10-24 [APL] 701FreeBSD 4.9 2003-10-28 [FBD] 702BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 703OpenBSD 3.4 2003-11-01 [OBD] 704FreeBSD 5.2 2004-01-12 [FBD] 705FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 706NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 707OpenBSD 3.5 2004-04-01 [OBD] 708FreeBSD 4.10 2004-05-27 [FBD] 709DragonFly 1.0 2004-07-12 [DFB] 710OpenBSD 3.6 2004-10-29 [OBD] 711FreeBSD 5.3 2004-11-06 [FBD] 712NetBSD 2.0 2004-12-09 [NBD] 713FreeBSD 4.11 2005-01-25 [FBD] 714DragonFly 1.2.0 2005-04-08 [DFB] 715NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 716Mac OS X 10.4 2005-04-29 [APL] 717FreeBSD 5.4 2005-05-09 [FBD] 718OpenBSD 3.7 2005-05-19 [OBD] 719NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 720OpenBSD 3.8 2005-11-01 [OBD] 721FreeBSD 6.0 2005-11-01 [FBD] 722NetBSD 2.1 2005-11-02 [NBD] 723NetBSD 3.0 2005-12-23 [NBD] 724DragonFly 1.4.0 2006-01-08 [DFB] 725FreeBSD 2.2.9 2006-04-01 [FBD] 726OpenBSD 3.9 2006-05-01 [OBD] 727FreeBSD 6.1 2006-05-08 [FBD] 728FreeBSD 5.5 2006-05-25 [FBD] 729NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 730DragonFly 1.6.0 2006-07-24 [DFB] 731OpenBSD 4.0 2006-11-01 [OBD] 732NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 733NetBSD 3.1 2006-11-04 [NBD] 734FreeBSD 6.2 2007-01-15 [FBD] 735DragonFly 1.8.0 2007-01-30 [DFB] 736OpenBSD 4.1 2007-05-01 [OBD] 737DragonFly 1.10.0 2007-08-06 [DFB] 738Mac OS X 10.5 2007-10-26 [APL] 739OpenBSD 4.2 2007-11-01 [OBD] 740NetBSD 4.0 2007-12-19 [NBD] 741FreeBSD 6.3 2008-01-18 [FBD] 742DragonFly 1.12.0 2008-02-26 [DFB] 743FreeBSD 7.0 2008-02-27 [FBD] 744OpenBSD 4.3 2008-05-01 [OBD] 745DragonFly 2.0.0 2008-07-21 [DFB] 746OpenBSD 4.4 2008-11-01 [OBD] 747FreeBSD 6.4 2008-11-28 [FBD] 748FreeBSD 7.1 2009-01-04 [FBD] 749DragonFly 2.2.0 2009-02-17 [DFB] 750NetBSD 5.0 2009-04-29 [NBD] 751OpenBSD 4.5 2009-05-01 [OBD] 752FreeBSD 7.2 2009-05-04 [FBD] 753Mac OS X 10.6 2009-06-08 [APL] 754NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 755DragonFly 2.4.0 2009-09-16 [DFB] 756OpenBSD 4.6 2009-10-18 [OBD] 757FreeBSD 8.0 2009-11-26 [FBD] 758NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 759FreeBSD 7.3 2010-03-23 [FBD] 760DragonFly 2.6.0 2010-03-28 [DFB] 761OpenBSD 4.7 2010-05-19 [OBD] 762FreeBSD 8.1 2010-07-24 [FBD] 763DragonFly 2.8.2 2010-10-30 [DFB] 764OpenBSD 4.8 2010-11-01 [OBD] 765NetBSD 5.1 2010-11-19 [NBD] 766FreeBSD 7.4 2011-02-24 [FBD] 767FreeBSD 8.2 2011-02-24 [FBD] 768DragonFly 2.10.1 2011-04-26 [DFB] 769OpenBSD 4.9 2011-05-01 [OBD] 770Mac OS X 10.7 2011-07-20 [APL] 771OpenBSD 5.0 2011-11-01 [OBD] 772FreeBSD 9.0 2012-01-12 [FBD] 773NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 774DragonFly 3.0.1 2012-02-21 [DFB] 775FreeBSD 8.3 2012-04-18 [FBD] 776OpenBSD 5.1 2012-05-01 [OBD] 777Mac OS X 10.8 2012-07-25 [APL] 778NetBSD 6.0 2012-10-17 [NBD] 779OpenBSD 5.2 2012-11-01 [OBD] 780DragonFly 3.2.1 2012-11-02 [DFB] 781NetBSD 5.2 2012-12-03 [NBD] 782NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 783FreeBSD 9.1 2012-12-30 [FBD] 784DragonFly 3.4.1 2013-04-29 [DFB] 785OpenBSD 5.3 2013-05-01 [OBD] 786NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 787NetBSD 6.1 2013-05-18 [NBD] 788FreeBSD 8.4 2013-06-07 [FBD] 789NetBSD 6.1.1 2013-08-22 [NBD] 790NetBSD 5.1.3 2013-09-29 [NBD] 791NetBSD 5.2.1 2013-09-29 [NBD] 792FreeBSD 9.2 2013-09-30 [FBD] 793NetBSD 6.0.3 2013-09-30 [NBD] 794NetBSD 6.1.2 2013-09-30 [NBD] 795Mac OS X 10.9 2013-10-22 [APL] 796OpenBSD 5.4 2013-11-01 [OBD] 797DragonFly 3.6.0 2013-11-25 [DFB] 798FreeBSD 10.0 2014-01-20 [FBD] 799NetBSD 5.1.4 2014-01-25 [NBD] 800NetBSD 5.2.2 2014-01-25 [NBD] 801NetBSD 6.0.4 2014-01-25 [NBD] 802NetBSD 6.1.3 2014-01-25 [NBD] 803DragonFly 3.6.1 2014-02-22 [DFB] 804DragonFly 3.6.2 2014-04-10 [DFB] 805NetBSD 6.0.5 2014-04-12 [NBD] 806NetBSD 6.1.4 2014-04-12 [NBD] 807OpenBSD 5.5 2014-05-01 [OBD] 808DragonFly 3.8.0 2014-06-04 [DFB] 809DragonFly 3.8.1 2014-06-16 [DFB] 810DragonFly 3.6.3 2014-06-17 [DFB] 811FreeBSD 9.3 2014-07-05 [FBD] 812DragonFly 3.8.2 2014-08-08 [DFB] 813NetBSD 6.0.6 2014-09-22 [NBD] 814NetBSD 6.1.5 2014-09-22 [NBD] 815Mac OS X 10.10 2014-10-16 [APL] 816OpenBSD 5.6 2014-11-01 [OBD] 817FreeBSD 10.1 2014-11-14 [FBD] 818DragonFly 4.0.1 2014-11-25 [DFB] 819DragonFly 4.0.2 2015-01-07 [DFB] 820DragonFly 4.0.3 2015-01-21 [DFB] 821DragonFly 4.0.4 2015-03-09 [DFB] 822DragonFly 4.0.5 2015-03-23 [DFB] 823OpenBSD 5.7 2015-05-01 [OBD] 824DragonFly 4.2.0 2015-06-29 [DFB] 825FreeBSD 10.2 2015-08-13 [FBD] 826NetBSD 7.0 2015-09-25 [NBD] 827OS X 10.11 2015-09-30 [APL] 828OpenBSD 5.8 2015-10-18 [OBD] 829DragonFly 4.4.1 2015-12-07 [DFB] 830OpenBSD 5.9 2016-03-29 [OBD] 831FreeBSD 10.3 2016-04-04 [FBD] 832NetBSD 7.0.1 2016-05-22 [NBD] 833DragonFly 4.6.0 2016-08-02 [DFB] 834OpenBSD 6.0 2016-09-01 [OBD] 835macOS 10.12 2016-09-20 [APL] 836FreeBSD 11.0 2016-10-10 [FBD] 837NetBSD 7.0.2 2016-10-21 [NBD] 838NetBSD 7.1 2017-03-11 [NBD] 839DragonFly 4.8.0 2017-03-27 [DFB] 840OpenBSD 6.1 2017-04-11 [OBD] 841FreeBSD 11.1 2017-07-26 [FBD] 842macOS 10.13 2017-09-25 [APL] 843FreeBSD 10.4 2017-10-03 [FBD] 844OpenBSD 6.2 2017-10-09 [OBD] 845DragonFly 5.0.0 2017-10-16 [DFB] 846DragonFly 5.0.1 2017-11-06 [DFB] 847DragonFly 5.0.2 2017-12-04 [DFB] 848NetBSD 7.1.1 2017-12-22 [NBD] 849NetBSD 7.1.2 2018-03-15 [NBD] 850OpenBSD 6.3 2018-04-02 [OBD] 851DragonFly 5.2.0 2018-04-10 [DFB] 852DragonFly 5.2.1 2018-05-20 [DFB] 853DragonFly 5.2.2 2018-06-18 [DFB] 854FreeBSD 11.2 2018-06-27 [FBD] 855NetBSD 8.0 2018-07-17 [NBD] 856NetBSD 7.2 2018-08-29 [NBD] 857macOS 10.14 2018-09-24 [APL] 858OpenBSD 6.4 2018-10-18 [OBD] 859DragonFly 5.4.0 2018-12-03 [DFB] 860FreeBSD 12.0 2018-12-11 [FBD] 861DragonFly 5.4.1 2018-12-24 [DFB] 862OpenBSD 6.5 2019-05-01 [OBD] 863NetBSD 8.1 2019-06-04 [NBD] 864DragonFly 5.6 2019-06-17 [DFB] 865DragonFly 5.6.1 2019-06-19 [DFB] 866FreeBSD 11.3 2019-07-09 [FBD] 867DragonFly 5.6.2 2019-08-11 [DFB] 868OpenBSD 6.6 2019-10-17 [OBD] 869macOS 10.15 2019-10-07 [APL] 870macOS 10.15.1 2019-10-29 [APL] (security/critical release) 871FreeBSD 12.1 2019-11-04 [FBD] 872NetBSD 9.0 2020-02-14 [NBD] 873DragonFly 5.8 2020-03-03 [DFB] 874DragonFly 5.6.3 2020-03-11 [DFB] 875NetBSD 8.2 2020-03-31 [NBD] 876DragonFly 5.8.1 2020-05-06 [DFB] 877OpenBSD 6.7 2020-05-19 [OBD] 878FreeBSD 11.4 2020-06-16 [FBD] 879DragonFly 5.8.2 2020-09-23 [DFB] 880DragonFly 5.8.3 2020-09-24 [DFB] 881OpenBSD 6.8 2020-10-18 [OBD] 882NetBSD 9.1 2020-10-18 [NBD] 883FreeBSD 12.2 2020-10-27 [FBD] 884macOS 11 2020-11-12 [APL] 885FreeBSD 13.0 2021-04-13 [FBD] 886OpenBSD 6.9 2021-05-01 [OBD] 887DragonFly 6.0 2021-05-08 [DFB] 888NetBSD 9.2 2021-05-12 [NBD] 889DragonFly 6.0.1 2021-10-12 [DFB] 890OpenBSD 7.0 2021-10-14 [OBD] 891macOS 12 2021-10-25 [APL] 892FreeBSD 12.3 2021-12-01 [FBD] 893DragonFly 6.2.1 2022-01-09 [DFB] 894OpenBSD 7.1 2022-04-21 [OBD] 895FreeBSD 13.1 2022-05-17 [FBD] 896DragonFly 6.2.2 2022-06-09 [DFB] 897NetBSD 9.3 2022-08-04 [NBD] 898OpenBSD 7.2 2022-10-20 [OBD] 899macOS 13 2022-10-24 [APL] 900FreeBSD 12.4 2022-12-05 [FBD] 901DragonFly 6.4 2022-12-30 [DFB] 902OpenBSD 7.3 2023-04-10 [OBD] 903FreeBSD 13.2 2023-04-11 [FBD] 904macOS 14 2023-09-26 [APL] 905OpenBSD 7.4 2023-10-16 [OBD] 906FreeBSD 14.0 2023-11-20 [FBD] 907FreeBSD 13.3 2024-03-05 [FBD] 908NetBSD 10.0 2024-03-28 [NBD] 909OpenBSD 7.5 2024-04-05 [OBD] 910NetBSD 9.4 2024-04-20 [NBD] 911NetBSD 8.3 2024-05-04 [NBD] 912FreeBSD 14.1 2024-06-04 [FBD] 913macOS 15 2024-09-16 [APL] 914FreeBSD 13.4 2024-09-17 [FBD] 915OpenBSD 7.6 2024-10-08 [OBD] 916FreeBSD 14.2 2024-12-03 [FBD] 917NetBSD 10.1 2024-12-16 [NBD] 918FreeBSD 13.5 2025-03-11 [FBD] 919 920Bibliography 921------------------------ 922 923Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 924Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 925System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 926 927Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 928Company, Inc., 1994. ISBN 0-201-54777-5 929 930McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 931Quarterman. The Design and Implementation of the 4.4BSD Operating 932System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 933 934McKusick, Marshall Kirk, George Neville-Neil. The Design and 935Implementation of the FreeBSD Operating System. 936Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 937 938McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 939Design and Implementation of the FreeBSD Operating System, 2nd Edition. 940Pearson Education, Inc., 2014. ISBN 0-321-96897-2 941 942Doug McIlroy. Research Unix Reader. 943 944Michael G. Brown. The Role of BSD in the Development of Unix. 945Presented to the Tasmanian Unix Special Interest Group of the 946Australian Computer Society, Hobart, August 1993. 947 948Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 949URL: https://web.archive.org/web/20081230094857/http://www.byte.com/art/9410/sec8/art3.htm 950 951Andreas Klemm, Lars Köller. If you're going to San Francisco ... 952Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 953 954FreeBSD Release Information 955URL: https://www.FreeBSD.org/releases/ 956 957Manual pages for FreeBSD and ports 958URL: https://man.FreeBSD.org 959 960FreeBSD Documentation Archive 961URL: https://docs-archive.freebsd.org/doc/ 962 963UNIX history graphing project 964URL: https://minnie.tuhs.org/Unix_History/ 965 966UNIX history 967URL: https://www.levenez.com/unix/ 968 969James Howard: The BSD Family Tree 970URL: https://web.archive.org/web/20090427195917/http://ezine.daemonnews.org/200104/bsd_family.html 971("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 972 973 974Acknowledgments 975--------------- 976 977Josh Gilliam for suggestions, bug fixes, and finding very old 978original BSD announcements from Usenet or tapes. 979 980Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 981 982-- 983Copyright (c) 1997-2024 Wolfram Schneider <wosch@FreeBSD.org> 984URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree 985