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 | FreeBSD | | | | 469 | 13.4 | | OpenBSD 7.6 | 470 | | | | | 471FreeBSD 15 -current | NetBSD -current OpenBSD -current DragonFly -current 472 | | | | | 473 v v v v v 474 475Time 476---------------- 477 478Time tolerance +/- 6 months, depending on which book/article you read; if it was 479the announcement in Usenet or if it was available as tape. 480 481[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 482 Quarterman. The Design and Implementation of the 4.4BSD Operating System. 483[APL] Apple website [https://www.apple.com/macosx/] 484[BSDI] Berkeley Software Design, Inc. 485[DFB] DragonFlyBSD Project, The. 486[DOC] README, COPYRIGHT on tape. 487[FBD] FreeBSD Project, The. 488[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, Volume 11, 489 Info 4, April, 1987. 490[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 491 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 492[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. Changes in the 493 Kernel in 2.9BSD. Second Berkeley Software Distribution UNIX Version 2.9, 494 July, 1983. 495[NBD] NetBSD Project, The. 496[OBD] OpenBSD Project, The. 497[QCU] Salus, Peter H. A quarter century of UNIX. ISBN 0201547775, EAN 498 9780201547771 499[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 500[TUHS] The Unix Historical Society. https://minnie.tuhs.org/Unix_History/ 501[USE] Usenet announcement. 502[WRS] Wind River Systems, Inc. 503[dmr] Dennis Ritchie, via E-Mail 504 505Multics 1965 506UNIX Summer 1969 507 DEC PDP-7 508First Edition 1971-11-03 [QCU] 509 DEC PDP-11/20, Assembler 510Second Edition 1972-06-12 [QCU] 511 10 UNIX installations 512Third Edition 1973-02-xx [QCU] 513 Pipes, 16 installations 514Fourth Edition 1973-11-xx [QCU] 515 rewriting in C effected, 516 above 30 installations 517Fifth Edition 1974-06-xx [QCU] 518 above 50 installations 519Sixth Edition 1975-05-xx [QCU] 520 port to DEC Vax 521Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 522 first portable UNIX 523Eighth Edition 1985-02-xx [QCU] 524 VAX 11/750, VAX 11/780 [dmr] 525 descended from 4.1c BSD [dmr] 526 descended from 4.1 BSD [44B] 527 scooping-out and replacement of the character-device 528 and networking part by the streams mechanism 529 530Ninth Edition 1986-09-xx [QCU] 531Tenth Edition 1989-10-xx [QCU] 532 5331BSD late 1977 534 1978-01-16 [DOC] 535 1978-03-09 [QCU] 536 PDP-11, Pascal, ex(1) 537 30 free copies of 1BSD sent out 538 35 tapes sold for 50 USD [QCU] 5392BSD mid 1978 [QCU] 1979-05-10 [TUHS] 540 75 2BSD tapes shipped 5412.79BSD 1980-04-xx [TUHS] 5422.8BSD 1981-07-xx [KSJ] 543 First 2BSD with bootable V7 kernel plus 544 community fixes. 5452.8.1BSD 1982-01-xx [QCU] 546 set of performance improvements 5472.9BSD 1983-07-xx [KSJ] 5482.9.1BSD 1983-11-xx [TUHS] 5492.9BSD-Seismo 1985-08-xx [SMS] 5502.10BSD 1987-04-xx [KKK] 5512.10.1BSD 1989-01-xx [SMS] 5522.11BSD 1991-03-14 [SMS] 5532.11BSD rev #430 1999-12-13 [SMS] 554 55532V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5563BSD late 1979 [QCU] March 1980 [TUHS] 557 virtual memory, page replacement, 558 demand paging 5594.0BSD 1980-10-xx 5604.1BSD 1981-07-08 [DOC] 5614.1aBSD 1982-04-xx 562 alpha release, 100 sites, networking [44B] 5634.1bBSD internal release, fast filesystem [44B] 5644.1cBSD late 1982 565 beta release, IPC [44B] 5664.2BSD 1983-09-xx [QCU] 567 1983-08-03 [DOC] 5684.3BSD 1986-06-xx [QCU] 569 1986-04-05 [KB], [DOC] 5704.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5714.3BSD NET/1 1988-11-xx [QCU] 572 1989-01-01 [DOC] 5734.3BSD Reno 1990-06-29 [QCU], [DOC] 5744.3BSD NET/2 1991-06-28 [QCU], [DOC] 575 576BSD/386 ALPHA 1991-12-xx [BSDI] 577 first code released to people outside BSDI 578386BSD 0.0 1992-02-xx [DOC] 579BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 580BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 581386BSD 0.1 1992-07-28 [DOC] 5824.4BSD Alpha 1992-07-07 583BSD/386 0.9.3 1992-10-xx [BSDI] 584 first external gamma; G customers 585BSD/386 0.9.4 1992-12-xx [BSDI] 586 would have been 1.0 except for request 587 for preliminary injunction 588BSD/386 1.0 1993-03-xx [BSDI] 589 injunction denied; first official release 590NetBSD 0.8 1993-04-20 [NBD] 5914.4BSD 1993-06-01 [USE] 592NetBSD 0.9 1993-08-23 [NBD] 593FreeBSD 1.0 1993-11-01 [FBD] 594FreeBSD 1.0.2 1993-11-14 [FBD] 595 supersedes 1.0 13 days after release. 596BSD/386 1.1 1994-02-xx [BSDI] 5974.4BSD Lite 1994-03-01 [USE] 598FreeBSD 1.1 1994-05-07 [FBD] 599FreeBSD 1.1.5 1994-06-30 [FBD] 600FreeBSD 1.1.5.1 1994-07-05 [FBD] 601 supersedes 1.1.5 5 days after release. 602NetBSD 1.0 1994-10-26 [NBD] 603386BSD 1.0 1994-11-12 [USE] 604FreeBSD 2.0 1994-11-23 [FBD] 605BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 606FreeBSD 2.0.5 1995-06-10 [FBD] 607BSD/OS 2.0.1 1995-06-xx [BSDI] 6084.4BSD Lite Release 2 1995-06-xx [44B] 609 the true final distribution from the CSRG 610FreeBSD 2.1.0 1995-11-19 [FBD] 611NetBSD 1.1 1995-11-26 [NBD] 612BSD/OS 2.1 1996-01-xx [BSDI] 613FreeBSD 2.1.5 1996-07-14 [FBD] 614NetBSD 1.2 1996-10-04 [NBD] 615OpenBSD 2.0 1996-10-18 [OBD] 616FreeBSD 2.1.6 1996-11-16 [FBD] 617FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 618Rhapsody 1997-xx-xx 619FreeBSD 2.1.7 1997-02-20 [FBD] 620BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 621FreeBSD 2.2.0 1997-03-16 [FBD] 622FreeBSD 2.2.1 1997-03-25 [FBD] 623FreeBSD 2.2.2 1997-05-16 [FBD] 624NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 625OpenBSD 2.1 1997-06-01 [OBD] 626FreeBSD 2.2.5 1997-10-22 [FBD] 627OpenBSD 2.2 1997-12-01 [OBD] 628NetBSD 1.3 1998-01-04 [NBD] 629FreeBSD 2.2.6 1998-03-25 [FBD] 630NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 631BSD/OS 3.1 1998-03-xx [BSDI] 632OpenBSD 2.3 1998-05-19 [OBD] 633NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 634FreeBSD 2.2.7 1998-07-22 [FBD] 635BSD/OS 4.0 1998-08-xx [BSDI] 636 2-lock MP support, ELF executables 637FreeBSD 3.0 1998-10-16 [FBD] 638 FreeBSD-3.0 is a snapshot from -current, 639 while 3.1 and 3.2 are from 3.x-stable which 640 was branched quite some time after 3.0-release 641FreeBSD 2.2.8 1998-11-29 [FBD] 642OpenBSD 2.4 1998-12-01 [OBD] 643NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 644FreeBSD 3.1 1999-02-15 [FBD] 645BSD/OS 4.0.1 1999-03-xx [BSDI] 646NetBSD 1.4 1999-05-12 [NBD] 647FreeBSD 3.2 1999-05-17 [FBD] 648OpenBSD 2.5 1999-05-19 [OBD] 649NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 650FreeBSD 3.3 1999-09-17 [FBD] 651OpenBSD 2.6 1999-12-01 [OBD] 652FreeBSD 3.4 1999-12-20 [FBD] 653BSD/OS 4.1 1999-12-xx [BSDI] 654FreeBSD 4.0 2000-03-13 [FBD] 655NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 656OpenBSD 2.7 2000-06-15 [OBD] 657FreeBSD 3.5 2000-06-24 [FBD] 658FreeBSD 4.1 2000-07-27 [FBD] 659FreeBSD 3.5.1 2000-07-28 [FBD] 660FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 661FreeBSD 4.2 2000-11-21 [FBD] 662NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 663BSD/OS 4.2 2000-11-29 [BSDI] 664OpenBSD 2.8 2000-12-01 [OBD] 665NetBSD 1.5 2000-12-06 [NBD] 666Mac OS X 10.0 2001-03-24 [APL] 667FreeBSD 4.3 2001-04-20 [FBD] 668OpenBSD 2.9 2001-06-01 [OBD] 669NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 670NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 671FreeBSD 4.4 2001-09-18 [FBD] 672Mac OS X 10.1 2001-09-29 [APL] 673OpenBSD 3.0 2001-12-01 [OBD] 674FreeBSD 4.5 2002-01-29 [FBD] 675BSD/OS 4.3 2002-03-14 [WRS] 676OpenBSD 3.1 2002-05-19 [OBD] 677FreeBSD 4.6 2002-06-15 [FBD] 678NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 679FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 680Mac OS X 10.2 2002-08-23 [APL] 681NetBSD 1.6 2002-09-14 [NBD] 682FreeBSD 4.7 2002-10-08 [FBD] 683OpenBSD 3.2 2002-11-01 [OBD] 684FreeBSD 5.0 2003-01-17 [FBD] 685 FreeBSD 5.0 is a separate branch off of 686 -current, similar to 3.0. 687FreeBSD 4.8 2003-04-03 [FBD] 688NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 689OpenBSD 3.3 2003-05-01 [OBD] 690BSD/OS 5.0 2003-05-?? [WRS] 691FreeBSD 5.1 2003-06-09 [FBD] 692Mac OS X 10.3 2003-10-24 [APL] 693FreeBSD 4.9 2003-10-28 [FBD] 694BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 695OpenBSD 3.4 2003-11-01 [OBD] 696FreeBSD 5.2 2004-01-12 [FBD] 697FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 698NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 699OpenBSD 3.5 2004-04-01 [OBD] 700FreeBSD 4.10 2004-05-27 [FBD] 701DragonFly 1.0 2004-07-12 [DFB] 702OpenBSD 3.6 2004-10-29 [OBD] 703FreeBSD 5.3 2004-11-06 [FBD] 704NetBSD 2.0 2004-12-09 [NBD] 705FreeBSD 4.11 2005-01-25 [FBD] 706DragonFly 1.2.0 2005-04-08 [DFB] 707NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 708Mac OS X 10.4 2005-04-29 [APL] 709FreeBSD 5.4 2005-05-09 [FBD] 710OpenBSD 3.7 2005-05-19 [OBD] 711NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 712OpenBSD 3.8 2005-11-01 [OBD] 713FreeBSD 6.0 2005-11-01 [FBD] 714NetBSD 2.1 2005-11-02 [NBD] 715NetBSD 3.0 2005-12-23 [NBD] 716DragonFly 1.4.0 2006-01-08 [DFB] 717FreeBSD 2.2.9 2006-04-01 [FBD] 718OpenBSD 3.9 2006-05-01 [OBD] 719FreeBSD 6.1 2006-05-08 [FBD] 720FreeBSD 5.5 2006-05-25 [FBD] 721NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 722DragonFly 1.6.0 2006-07-24 [DFB] 723OpenBSD 4.0 2006-11-01 [OBD] 724NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 725NetBSD 3.1 2006-11-04 [NBD] 726FreeBSD 6.2 2007-01-15 [FBD] 727DragonFly 1.8.0 2007-01-30 [DFB] 728OpenBSD 4.1 2007-05-01 [OBD] 729DragonFly 1.10.0 2007-08-06 [DFB] 730Mac OS X 10.5 2007-10-26 [APL] 731OpenBSD 4.2 2007-11-01 [OBD] 732NetBSD 4.0 2007-12-19 [NBD] 733FreeBSD 6.3 2008-01-18 [FBD] 734DragonFly 1.12.0 2008-02-26 [DFB] 735FreeBSD 7.0 2008-02-27 [FBD] 736OpenBSD 4.3 2008-05-01 [OBD] 737DragonFly 2.0.0 2008-07-21 [DFB] 738OpenBSD 4.4 2008-11-01 [OBD] 739FreeBSD 6.4 2008-11-28 [FBD] 740FreeBSD 7.1 2009-01-04 [FBD] 741DragonFly 2.2.0 2009-02-17 [DFB] 742NetBSD 5.0 2009-04-29 [NBD] 743OpenBSD 4.5 2009-05-01 [OBD] 744FreeBSD 7.2 2009-05-04 [FBD] 745Mac OS X 10.6 2009-06-08 [APL] 746NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 747DragonFly 2.4.0 2009-09-16 [DFB] 748OpenBSD 4.6 2009-10-18 [OBD] 749FreeBSD 8.0 2009-11-26 [FBD] 750NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 751FreeBSD 7.3 2010-03-23 [FBD] 752DragonFly 2.6.0 2010-03-28 [DFB] 753OpenBSD 4.7 2010-05-19 [OBD] 754FreeBSD 8.1 2010-07-24 [FBD] 755DragonFly 2.8.2 2010-10-30 [DFB] 756OpenBSD 4.8 2010-11-01 [OBD] 757NetBSD 5.1 2010-11-19 [NBD] 758FreeBSD 7.4 2011-02-24 [FBD] 759FreeBSD 8.2 2011-02-24 [FBD] 760DragonFly 2.10.1 2011-04-26 [DFB] 761OpenBSD 4.9 2011-05-01 [OBD] 762Mac OS X 10.7 2011-07-20 [APL] 763OpenBSD 5.0 2011-11-01 [OBD] 764FreeBSD 9.0 2012-01-12 [FBD] 765NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 766DragonFly 3.0.1 2012-02-21 [DFB] 767FreeBSD 8.3 2012-04-18 [FBD] 768OpenBSD 5.1 2012-05-01 [OBD] 769Mac OS X 10.8 2012-07-25 [APL] 770NetBSD 6.0 2012-10-17 [NBD] 771OpenBSD 5.2 2012-11-01 [OBD] 772DragonFly 3.2.1 2012-11-02 [DFB] 773NetBSD 5.2 2012-12-03 [NBD] 774NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 775FreeBSD 9.1 2012-12-30 [FBD] 776DragonFly 3.4.1 2013-04-29 [DFB] 777OpenBSD 5.3 2013-05-01 [OBD] 778NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 779NetBSD 6.1 2013-05-18 [NBD] 780FreeBSD 8.4 2013-06-07 [FBD] 781NetBSD 6.1.1 2013-08-22 [NBD] 782NetBSD 5.1.3 2013-09-29 [NBD] 783NetBSD 5.2.1 2013-09-29 [NBD] 784FreeBSD 9.2 2013-09-30 [FBD] 785NetBSD 6.0.3 2013-09-30 [NBD] 786NetBSD 6.1.2 2013-09-30 [NBD] 787Mac OS X 10.9 2013-10-22 [APL] 788OpenBSD 5.4 2013-11-01 [OBD] 789DragonFly 3.6.0 2013-11-25 [DFB] 790FreeBSD 10.0 2014-01-20 [FBD] 791NetBSD 5.1.4 2014-01-25 [NBD] 792NetBSD 5.2.2 2014-01-25 [NBD] 793NetBSD 6.0.4 2014-01-25 [NBD] 794NetBSD 6.1.3 2014-01-25 [NBD] 795DragonFly 3.6.1 2014-02-22 [DFB] 796DragonFly 3.6.2 2014-04-10 [DFB] 797NetBSD 6.0.5 2014-04-12 [NBD] 798NetBSD 6.1.4 2014-04-12 [NBD] 799OpenBSD 5.5 2014-05-01 [OBD] 800DragonFly 3.8.0 2014-06-04 [DFB] 801DragonFly 3.8.1 2014-06-16 [DFB] 802DragonFly 3.6.3 2014-06-17 [DFB] 803FreeBSD 9.3 2014-07-05 [FBD] 804DragonFly 3.8.2 2014-08-08 [DFB] 805NetBSD 6.0.6 2014-09-22 [NBD] 806NetBSD 6.1.5 2014-09-22 [NBD] 807Mac OS X 10.10 2014-10-16 [APL] 808OpenBSD 5.6 2014-11-01 [OBD] 809FreeBSD 10.1 2014-11-14 [FBD] 810DragonFly 4.0.1 2014-11-25 [DFB] 811DragonFly 4.0.2 2015-01-07 [DFB] 812DragonFly 4.0.3 2015-01-21 [DFB] 813DragonFly 4.0.4 2015-03-09 [DFB] 814DragonFly 4.0.5 2015-03-23 [DFB] 815OpenBSD 5.7 2015-05-01 [OBD] 816DragonFly 4.2.0 2015-06-29 [DFB] 817FreeBSD 10.2 2015-08-13 [FBD] 818NetBSD 7.0 2015-09-25 [NBD] 819OS X 10.11 2015-09-30 [APL] 820OpenBSD 5.8 2015-10-18 [OBD] 821DragonFly 4.4.1 2015-12-07 [DFB] 822OpenBSD 5.9 2016-03-29 [OBD] 823FreeBSD 10.3 2016-04-04 [FBD] 824NetBSD 7.0.1 2016-05-22 [NBD] 825DragonFly 4.6.0 2016-08-02 [DFB] 826OpenBSD 6.0 2016-09-01 [OBD] 827macOS 10.12 2016-09-20 [APL] 828FreeBSD 11.0 2016-10-10 [FBD] 829NetBSD 7.0.2 2016-10-21 [NBD] 830NetBSD 7.1 2017-03-11 [NBD] 831DragonFly 4.8.0 2017-03-27 [DFB] 832OpenBSD 6.1 2017-04-11 [OBD] 833FreeBSD 11.1 2017-07-26 [FBD] 834macOS 10.13 2017-09-25 [APL] 835FreeBSD 10.4 2017-10-03 [FBD] 836OpenBSD 6.2 2017-10-09 [OBD] 837DragonFly 5.0.0 2017-10-16 [DFB] 838DragonFly 5.0.1 2017-11-06 [DFB] 839DragonFly 5.0.2 2017-12-04 [DFB] 840NetBSD 7.1.1 2017-12-22 [NBD] 841NetBSD 7.1.2 2018-03-15 [NBD] 842OpenBSD 6.3 2018-04-02 [OBD] 843DragonFly 5.2.0 2018-04-10 [DFB] 844DragonFly 5.2.1 2018-05-20 [DFB] 845DragonFly 5.2.2 2018-06-18 [DFB] 846FreeBSD 11.2 2018-06-27 [FBD] 847NetBSD 8.0 2018-07-17 [NBD] 848NetBSD 7.2 2018-08-29 [NBD] 849macOS 10.14 2018-09-24 [APL] 850OpenBSD 6.4 2018-10-18 [OBD] 851DragonFly 5.4.0 2018-12-03 [DFB] 852FreeBSD 12.0 2018-12-11 [FBD] 853DragonFly 5.4.1 2018-12-24 [DFB] 854OpenBSD 6.5 2019-05-01 [OBD] 855NetBSD 8.1 2019-06-04 [NBD] 856DragonFly 5.6 2019-06-17 [DFB] 857DragonFly 5.6.1 2019-06-19 [DFB] 858FreeBSD 11.3 2019-07-09 [FBD] 859DragonFly 5.6.2 2019-08-11 [DFB] 860OpenBSD 6.6 2019-10-17 [OBD] 861macOS 10.15 2019-10-07 [APL] 862macOS 10.15.1 2019-10-29 [APL] (security/critical release) 863FreeBSD 12.1 2019-11-04 [FBD] 864NetBSD 9.0 2020-02-14 [NBD] 865DragonFly 5.8 2020-03-03 [DFB] 866DragonFly 5.6.3 2020-03-11 [DFB] 867NetBSD 8.2 2020-03-31 [NBD] 868DragonFly 5.8.1 2020-05-06 [DFB] 869OpenBSD 6.7 2020-05-19 [OBD] 870FreeBSD 11.4 2020-06-16 [FBD] 871DragonFly 5.8.2 2020-09-23 [DFB] 872DragonFly 5.8.3 2020-09-24 [DFB] 873OpenBSD 6.8 2020-10-18 [OBD] 874NetBSD 9.1 2020-10-18 [NBD] 875FreeBSD 12.2 2020-10-27 [FBD] 876macOS 11 2020-11-12 [APL] 877FreeBSD 13.0 2021-04-13 [FBD] 878OpenBSD 6.9 2021-05-01 [OBD] 879DragonFly 6.0 2021-05-08 [DFB] 880NetBSD 9.2 2021-05-12 [NBD] 881DragonFly 6.0.1 2021-10-12 [DFB] 882OpenBSD 7.0 2021-10-14 [OBD] 883macOS 12 2021-10-25 [APL] 884FreeBSD 12.3 2021-12-01 [FBD] 885DragonFly 6.2.1 2022-01-09 [DFB] 886OpenBSD 7.1 2022-04-21 [OBD] 887FreeBSD 13.1 2022-05-17 [FBD] 888DragonFly 6.2.2 2022-06-09 [DFB] 889NetBSD 9.3 2022-08-04 [NBD] 890OpenBSD 7.2 2022-10-20 [OBD] 891macOS 13 2022-10-24 [APL] 892FreeBSD 12.4 2022-12-05 [FBD] 893DragonFly 6.4 2022-12-30 [DFB] 894OpenBSD 7.3 2023-04-10 [OBD] 895FreeBSD 13.2 2023-04-11 [FBD] 896macOS 14 2023-09-26 [APL] 897OpenBSD 7.4 2023-10-16 [OBD] 898FreeBSD 14.0 2023-11-20 [FBD] 899FreeBSD 13.3 2024-03-05 [FBD] 900NetBSD 10.0 2024-03-28 [NBD] 901OpenBSD 7.5 2024-04-05 [OBD] 902NetBSD 9.4 2024-04-20 [NBD] 903NetBSD 8.3 2024-05-04 [NBD] 904FreeBSD 14.1 2024-06-04 [FBD] 905FreeBSD 13.4 2024-09-17 [FBD] 906OpenBSD 7.6 2024-10-08 [OBD] 907 908Bibliography 909------------------------ 910 911Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 912Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 913System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 914 915Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 916Company, Inc., 1994. ISBN 0-201-54777-5 917 918McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 919Quarterman. The Design and Implementation of the 4.4BSD Operating 920System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 921 922McKusick, Marshall Kirk, George Neville-Neil. The Design and 923Implementation of the FreeBSD Operating System. 924Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 925 926McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 927Design and Implementation of the FreeBSD Operating System, 2nd Edition. 928Pearson Education, Inc., 2014. ISBN 0-321-96897-2 929 930Doug McIlroy. Research Unix Reader. 931 932Michael G. Brown. The Role of BSD in the Development of Unix. 933Presented to the Tasmanian Unix Special Interest Group of the 934Australian Computer Society, Hobart, August 1993. 935 936Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 937URL: https://web.archive.org/web/20081230094857/http://www.byte.com/art/9410/sec8/art3.htm 938 939Andreas Klemm, Lars Köller. If you're going to San Francisco ... 940Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 941 942FreeBSD Release Information 943URL: https://www.FreeBSD.org/releases/ 944 945Manual pages for FreeBSD and ports 946URL: https://man.FreeBSD.org 947 948FreeBSD Documentation Archive 949URL: https://docs-archive.freebsd.org/doc/ 950 951UNIX history graphing project 952URL: https://minnie.tuhs.org/Unix_History/ 953 954UNIX history 955URL: https://www.levenez.com/unix/ 956 957James Howard: The BSD Family Tree 958URL: https://web.archive.org/web/20090427195917/http://ezine.daemonnews.org/200104/bsd_family.html 959("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 960 961 962Acknowledgments 963--------------- 964 965Josh Gilliam for suggestions, bug fixes, and finding very old 966original BSD announcements from Usenet or tapes. 967 968Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 969 970-- 971Copyright (c) 1997-2024 Wolfram Schneider <wosch@FreeBSD.org> 972URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree 973