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 9.1 OpenBSD 6.8 | 423 | FreeBSD macOS | | | | 424 | 12.2 11 | | | | 425 | | | | | | | 426 | `------. | | | | | 427 | | | | | | | 428 *--FreeBSD | | | | | | 429 | 13.0 | | | NetBSD 9.2 OpenBSD 6.9 DragonFly 6.0.0 430 | | | | | | | | 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 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 | | | 453 | | | | OpenBSD 7.4 | 454 *--FreeBSD | | | | | 455 | 14.0 | | | | | 456 | | | | | | 457 | FreeBSD | | | | 458 | 13.3 | | | | 459 | | *--NetBSD | | 460 | | | 10.0 | | 461 | | | | | 462FreeBSD 15 -current | NetBSD -current OpenBSD -current DragonFly -current 463 | | | | | 464 v v v v v 465 466Time 467---------------- 468 469Time tolerance +/- 6 months, depending on which book/article you read; if it was 470the announcement in Usenet or if it was available as tape. 471 472[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 473 Quarterman. The Design and Implementation of the 4.4BSD Operating System. 474[APL] Apple website [https://www.apple.com/macosx/] 475[BSDI] Berkeley Software Design, Inc. 476[DFB] DragonFlyBSD Project, The. 477[DOC] README, COPYRIGHT on tape. 478[FBD] FreeBSD Project, The. 479[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, Volume 11, 480 Info 4, April, 1987. 481[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 482 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 483[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. Changes in the 484 Kernel in 2.9BSD. Second Berkeley Software Distribution UNIX Version 2.9, 485 July, 1983. 486[NBD] NetBSD Project, The. 487[OBD] OpenBSD Project, The. 488[QCU] Salus, Peter H. A quarter century of UNIX. ISBN 0201547775, EAN 489 9780201547771 490[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 491[TUHS] The Unix Historical Society. https://minnie.tuhs.org/Unix_History/. 492[USE] Usenet announcement. 493[WRS] Wind River Systems, Inc. 494[dmr] Dennis Ritchie, via E-Mail 495 496Multics 1965 497UNIX Summer 1969 498 DEC PDP-7 499First Edition 1971-11-03 [QCU] 500 DEC PDP-11/20, Assembler 501Second Edition 1972-06-12 [QCU] 502 10 UNIX installations 503Third Edition 1973-02-xx [QCU] 504 Pipes, 16 installations 505Fourth Edition 1973-11-xx [QCU] 506 rewriting in C effected, 507 above 30 installations 508Fifth Edition 1974-06-xx [QCU] 509 above 50 installations 510Sixth Edition 1975-05-xx [QCU] 511 port to DEC Vax 512Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 513 first portable UNIX 514Eighth Edition 1985-02-xx [QCU] 515 VAX 11/750, VAX 11/780 [dmr] 516 descended from 4.1c BSD [dmr] 517 descended from 4.1 BSD [44B] 518 scooping-out and replacement of the character-device 519 and networking part by the streams mechanism 520 521Ninth Edition 1986-09-xx [QCU] 522Tenth Edition 1989-10-xx [QCU] 523 5241BSD late 1977 525 1978-01-16 [DOC] 526 1978-03-09 [QCU] 527 PDP-11, Pascal, ex(1) 528 30 free copies of 1BSD sent out 529 35 tapes sold for 50 USD [QCU] 5302BSD mid 1978 [QCU] 1979-05-10 [TUHS] 531 75 2BSD tapes shipped 5322.79BSD 1980-04-xx [TUHS] 5332.8BSD 1981-07-xx [KSJ] 534 First 2BSD with bootable V7 kernel plus 535 community fixes. 5362.8.1BSD 1982-01-xx [QCU] 537 set of performance improvements 5382.9BSD 1983-07-xx [KSJ] 5392.9.1BSD 1983-11-xx [TUHS] 5402.9BSD-Seismo 1985-08-xx [SMS] 5412.10BSD 1987-04-xx [KKK] 5422.10.1BSD 1989-01-xx [SMS] 5432.11BSD 1991-03-14 [SMS] 5442.11BSD rev #430 1999-12-13 [SMS] 545 54632V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5473BSD late 1979 [QCU] March 1980 [TUHS] 548 virtual memory, page replacement, 549 demand paging 5504.0BSD 1980-10-xx 5514.1BSD 1981-07-08 [DOC] 5524.1aBSD 1982-04-xx 553 alpha release, 100 sites, networking [44B] 5544.1bBSD internal release, fast filesystem [44B] 5554.1cBSD late 1982 556 beta release, IPC [44B] 5574.2BSD 1983-09-xx [QCU] 558 1983-08-03 [DOC] 5594.3BSD 1986-06-xx [QCU] 560 1986-04-05 [KB], [DOC] 5614.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5624.3BSD NET/1 1988-11-xx [QCU] 563 1989-01-01 [DOC] 5644.3BSD Reno 1990-06-29 [QCU], [DOC] 5654.3BSD NET/2 1991-06-28 [QCU], [DOC] 566 567BSD/386 ALPHA 1991-12-xx [BSDI] 568 first code released to people outside BSDI 569386BSD 0.0 1992-02-xx [DOC] 570BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 571BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 572386BSD 0.1 1992-07-28 [DOC] 5734.4BSD Alpha 1992-07-07 574BSD/386 0.9.3 1992-10-xx [BSDI] 575 first external gamma; G customers 576BSD/386 0.9.4 1992-12-xx [BSDI] 577 would have been 1.0 except for request 578 for preliminary injunction 579BSD/386 1.0 1993-03-xx [BSDI] 580 injunction denied; first official release 581NetBSD 0.8 1993-04-20 [NBD] 5824.4BSD 1993-06-01 [USE] 583NetBSD 0.9 1993-08-23 [NBD] 584FreeBSD 1.0 1993-11-01 [FBD] 585FreeBSD 1.0.2 1993-11-14 [FBD] 586 supersedes 1.0 13 days after release. 587BSD/386 1.1 1994-02-xx [BSDI] 5884.4BSD Lite 1994-03-01 [USE] 589FreeBSD 1.1 1994-05-07 [FBD] 590FreeBSD 1.1.5 1994-06-30 [FBD] 591FreeBSD 1.1.5.1 1994-07-05 [FBD] 592 supersedes 1.1.5 5 days after release. 593NetBSD 1.0 1994-10-26 [NBD] 594386BSD 1.0 1994-11-12 [USE] 595FreeBSD 2.0 1994-11-23 [FBD] 596BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 597FreeBSD 2.0.5 1995-06-10 [FBD] 598BSD/OS 2.0.1 1995-06-xx [BSDI] 5994.4BSD Lite Release 2 1995-06-xx [44B] 600 the true final distribution from the CSRG 601FreeBSD 2.1.0 1995-11-19 [FBD] 602NetBSD 1.1 1995-11-26 [NBD] 603BSD/OS 2.1 1996-01-xx [BSDI] 604FreeBSD 2.1.5 1996-07-14 [FBD] 605NetBSD 1.2 1996-10-04 [NBD] 606OpenBSD 2.0 1996-10-18 [OBD] 607FreeBSD 2.1.6 1996-11-16 [FBD] 608FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 609Rhapsody 1997-xx-xx 610FreeBSD 2.1.7 1997-02-20 [FBD] 611BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 612FreeBSD 2.2.0 1997-03-16 [FBD] 613FreeBSD 2.2.1 1997-03-25 [FBD] 614FreeBSD 2.2.2 1997-05-16 [FBD] 615NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 616OpenBSD 2.1 1997-06-01 [OBD] 617FreeBSD 2.2.5 1997-10-22 [FBD] 618OpenBSD 2.2 1997-12-01 [OBD] 619NetBSD 1.3 1998-01-04 [NBD] 620FreeBSD 2.2.6 1998-03-25 [FBD] 621NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 622BSD/OS 3.1 1998-03-xx [BSDI] 623OpenBSD 2.3 1998-05-19 [OBD] 624NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 625FreeBSD 2.2.7 1998-07-22 [FBD] 626BSD/OS 4.0 1998-08-xx [BSDI] 627 2-lock MP support, ELF executables 628FreeBSD 3.0 1998-10-16 [FBD] 629 FreeBSD-3.0 is a snapshot from -current, 630 while 3.1 and 3.2 are from 3.x-stable which 631 was branched quite some time after 3.0-release 632FreeBSD 2.2.8 1998-11-29 [FBD] 633OpenBSD 2.4 1998-12-01 [OBD] 634NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 635FreeBSD 3.1 1999-02-15 [FBD] 636BSD/OS 4.0.1 1999-03-xx [BSDI] 637NetBSD 1.4 1999-05-12 [NBD] 638FreeBSD 3.2 1999-05-17 [FBD] 639OpenBSD 2.5 1999-05-19 [OBD] 640NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 641FreeBSD 3.3 1999-09-17 [FBD] 642OpenBSD 2.6 1999-12-01 [OBD] 643FreeBSD 3.4 1999-12-20 [FBD] 644BSD/OS 4.1 1999-12-xx [BSDI] 645FreeBSD 4.0 2000-03-13 [FBD] 646NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 647OpenBSD 2.7 2000-06-15 [OBD] 648FreeBSD 3.5 2000-06-24 [FBD] 649FreeBSD 4.1 2000-07-27 [FBD] 650FreeBSD 3.5.1 2000-07-28 [FBD] 651FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 652FreeBSD 4.2 2000-11-21 [FBD] 653NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 654BSD/OS 4.2 2000-11-29 [BSDI] 655OpenBSD 2.8 2000-12-01 [OBD] 656NetBSD 1.5 2000-12-06 [NBD] 657Mac OS X 10.0 2001-03-24 [APL] 658FreeBSD 4.3 2001-04-20 [FBD] 659OpenBSD 2.9 2001-06-01 [OBD] 660NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 661NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 662FreeBSD 4.4 2001-09-18 [FBD] 663Mac OS X 10.1 2001-09-29 [APL] 664OpenBSD 3.0 2001-12-01 [OBD] 665FreeBSD 4.5 2002-01-29 [FBD] 666BSD/OS 4.3 2002-03-14 [WRS] 667OpenBSD 3.1 2002-05-19 [OBD] 668FreeBSD 4.6 2002-06-15 [FBD] 669NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 670FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 671Mac OS X 10.2 2002-08-23 [APL] 672NetBSD 1.6 2002-09-14 [NBD] 673FreeBSD 4.7 2002-10-08 [FBD] 674OpenBSD 3.2 2002-11-01 [OBD] 675FreeBSD 5.0 2003-01-17 [FBD] 676 FreeBSD 5.0 is a separate branch off of 677 -current, similar to 3.0. 678FreeBSD 4.8 2003-04-03 [FBD] 679NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 680OpenBSD 3.3 2003-05-01 [OBD] 681BSD/OS 5.0 2003-05-?? [WRS] 682FreeBSD 5.1 2003-06-09 [FBD] 683Mac OS X 10.3 2003-10-24 [APL] 684FreeBSD 4.9 2003-10-28 [FBD] 685BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 686OpenBSD 3.4 2003-11-01 [OBD] 687FreeBSD 5.2 2004-01-12 [FBD] 688FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 689NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 690OpenBSD 3.5 2004-04-01 [OBD] 691FreeBSD 4.10 2004-05-27 [FBD] 692DragonFly 1.0 2004-07-12 [DFB] 693OpenBSD 3.6 2004-10-29 [OBD] 694FreeBSD 5.3 2004-11-06 [FBD] 695NetBSD 2.0 2004-12-09 [NBD] 696FreeBSD 4.11 2005-01-25 [FBD] 697DragonFly 1.2.0 2005-04-08 [DFB] 698NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 699Mac OS X 10.4 2005-04-29 [APL] 700FreeBSD 5.4 2005-05-09 [FBD] 701OpenBSD 3.7 2005-05-19 [OBD] 702NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 703OpenBSD 3.8 2005-11-01 [OBD] 704FreeBSD 6.0 2005-11-01 [FBD] 705NetBSD 2.1 2005-11-02 [NBD] 706NetBSD 3.0 2005-12-23 [NBD] 707DragonFly 1.4.0 2006-01-08 [DFB] 708FreeBSD 2.2.9 2006-04-01 [FBD] 709OpenBSD 3.9 2006-05-01 [OBD] 710FreeBSD 6.1 2006-05-08 [FBD] 711FreeBSD 5.5 2006-05-25 [FBD] 712NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 713DragonFly 1.6.0 2006-07-24 [DFB] 714OpenBSD 4.0 2006-11-01 [OBD] 715NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 716NetBSD 3.1 2006-11-04 [NBD] 717FreeBSD 6.2 2007-01-15 [FBD] 718DragonFly 1.8.0 2007-01-30 [DFB] 719OpenBSD 4.1 2007-05-01 [OBD] 720DragonFly 1.10.0 2007-08-06 [DFB] 721Mac OS X 10.5 2007-10-26 [APL] 722OpenBSD 4.2 2007-11-01 [OBD] 723NetBSD 4.0 2007-12-19 [NBD] 724FreeBSD 6.3 2008-01-18 [FBD] 725DragonFly 1.12.0 2008-02-26 [DFB] 726FreeBSD 7.0 2008-02-27 [FBD] 727OpenBSD 4.3 2008-05-01 [OBD] 728DragonFly 2.0.0 2008-07-21 [DFB] 729OpenBSD 4.4 2008-11-01 [OBD] 730FreeBSD 6.4 2008-11-28 [FBD] 731FreeBSD 7.1 2009-01-04 [FBD] 732DragonFly 2.2.0 2009-02-17 [DFB] 733NetBSD 5.0 2009-04-29 [NBD] 734OpenBSD 4.5 2009-05-01 [OBD] 735FreeBSD 7.2 2009-05-04 [FBD] 736Mac OS X 10.6 2009-06-08 [APL] 737NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 738DragonFly 2.4.0 2009-09-16 [DFB] 739OpenBSD 4.6 2009-10-18 [OBD] 740FreeBSD 8.0 2009-11-26 [FBD] 741NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 742FreeBSD 7.3 2010-03-23 [FBD] 743DragonFly 2.6.0 2010-03-28 [DFB] 744OpenBSD 4.7 2010-05-19 [OBD] 745FreeBSD 8.1 2010-07-24 [FBD] 746DragonFly 2.8.2 2010-10-30 [DFB] 747OpenBSD 4.8 2010-11-01 [OBD] 748NetBSD 5.1 2010-11-19 [NBD] 749FreeBSD 7.4 2011-02-24 [FBD] 750FreeBSD 8.2 2011-02-24 [FBD] 751DragonFly 2.10.1 2011-04-26 [DFB] 752OpenBSD 4.9 2011-05-01 [OBD] 753Mac OS X 10.7 2011-07-20 [APL] 754OpenBSD 5.0 2011-11-01 [OBD] 755FreeBSD 9.0 2012-01-12 [FBD] 756NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 757DragonFly 3.0.1 2012-02-21 [DFB] 758FreeBSD 8.3 2012-04-18 [FBD] 759OpenBSD 5.1 2012-05-01 [OBD] 760Mac OS X 10.8 2012-07-25 [APL] 761NetBSD 6.0 2012-10-17 [NBD] 762OpenBSD 5.2 2012-11-01 [OBD] 763DragonFly 3.2.1 2012-11-02 [DFB] 764NetBSD 5.2 2012-12-03 [NBD] 765NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 766FreeBSD 9.1 2012-12-30 [FBD] 767DragonFly 3.4.1 2013-04-29 [DFB] 768OpenBSD 5.3 2013-05-01 [OBD] 769NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 770NetBSD 6.1 2013-05-18 [NBD] 771FreeBSD 8.4 2013-06-07 [FBD] 772NetBSD 6.1.1 2013-08-22 [NBD] 773NetBSD 5.1.3 2013-09-29 [NBD] 774NetBSD 5.2.1 2013-09-29 [NBD] 775FreeBSD 9.2 2013-09-30 [FBD] 776NetBSD 6.0.3 2013-09-30 [NBD] 777NetBSD 6.1.2 2013-09-30 [NBD] 778Mac OS X 10.9 2013-10-22 [APL] 779OpenBSD 5.4 2013-11-01 [OBD] 780DragonFly 3.6.0 2013-11-25 [DFB] 781FreeBSD 10.0 2014-01-20 [FBD] 782NetBSD 5.1.4 2014-01-25 [NBD] 783NetBSD 5.2.2 2014-01-25 [NBD] 784NetBSD 6.0.4 2014-01-25 [NBD] 785NetBSD 6.1.3 2014-01-25 [NBD] 786DragonFly 3.6.1 2014-02-22 [DFB] 787DragonFly 3.6.2 2014-04-10 [DFB] 788NetBSD 6.0.5 2014-04-12 [NBD] 789NetBSD 6.1.4 2014-04-12 [NBD] 790OpenBSD 5.5 2014-05-01 [OBD] 791DragonFly 3.8.0 2014-06-04 [DFB] 792DragonFly 3.8.1 2014-06-16 [DFB] 793DragonFly 3.6.3 2014-06-17 [DFB] 794FreeBSD 9.3 2014-07-05 [FBD] 795DragonFly 3.8.2 2014-08-08 [DFB] 796NetBSD 6.0.6 2014-09-22 [NBD] 797NetBSD 6.1.5 2014-09-22 [NBD] 798Mac OS X 10.10 2014-10-16 [APL] 799OpenBSD 5.6 2014-11-01 [OBD] 800FreeBSD 10.1 2014-11-14 [FBD] 801DragonFly 4.0.1 2014-11-25 [DFB] 802DragonFly 4.0.2 2015-01-07 [DFB] 803DragonFly 4.0.3 2015-01-21 [DFB] 804DragonFly 4.0.4 2015-03-09 [DFB] 805DragonFly 4.0.5 2015-03-23 [DFB] 806OpenBSD 5.7 2015-05-01 [OBD] 807DragonFly 4.2.0 2015-06-29 [DFB] 808FreeBSD 10.2 2015-08-13 [FBD] 809NetBSD 7.0 2015-09-25 [NBD] 810OS X 10.11 2015-09-30 [APL] 811OpenBSD 5.8 2015-10-18 [OBD] 812DragonFly 4.4.1 2015-12-07 [DFB] 813OpenBSD 5.9 2016-03-29 [OBD] 814FreeBSD 10.3 2016-04-04 [FBD] 815NetBSD 7.0.1 2016-05-22 [NBD] 816DragonFly 4.6.0 2016-08-02 [DFB] 817OpenBSD 6.0 2016-09-01 [OBD] 818macOS 10.12 2016-09-20 [APL] 819FreeBSD 11.0 2016-10-10 [FBD] 820NetBSD 7.0.2 2016-10-21 [NBD] 821NetBSD 7.1 2017-03-11 [NBD] 822DragonFly 4.8.0 2017-03-27 [DFB] 823OpenBSD 6.1 2017-04-11 [OBD] 824FreeBSD 11.1 2017-07-26 [FBD] 825macOS 10.13 2017-09-25 [APL] 826FreeBSD 10.4 2017-10-03 [FBD] 827OpenBSD 6.2 2017-10-09 [OBD] 828DragonFly 5.0.0 2017-10-16 [DFB] 829DragonFly 5.0.1 2017-11-06 [DFB] 830DragonFly 5.0.2 2017-12-04 [DFB] 831NetBSD 7.1.1 2017-12-22 [NBD] 832NetBSD 7.1.2 2018-03-15 [NBD] 833OpenBSD 6.3 2018-04-02 [OBD] 834DragonFly 5.2.0 2018-04-10 [DFB] 835DragonFly 5.2.1 2018-05-20 [DFB] 836DragonFly 5.2.2 2018-06-18 [DFB] 837FreeBSD 11.2 2018-06-27 [FBD] 838NetBSD 8.0 2018-07-17 [NBD] 839NetBSD 7.2 2018-08-29 [NBD] 840macOS 10.14 2018-09-24 [APL] 841OpenBSD 6.4 2018-10-18 [OBD] 842DragonFly 5.4.0 2018-12-03 [DFB] 843FreeBSD 12.0 2018-12-11 [FBD] 844DragonFly 5.4.1 2018-12-24 [DFB] 845OpenBSD 6.5 2019-05-01 [OBD] 846NetBSD 8.1 2019-06-04 [NBD] 847DragonFly 5.6 2019-06-17 [DFB] 848DragonFly 5.6.1 2019-06-19 [DFB] 849FreeBSD 11.3 2019-07-09 [FBD] 850DragonFly 5.6.2 2019-08-11 [DFB] 851OpenBSD 6.6 2019-10-17 [OBD] 852macOS 10.15 2019-10-07 [APL] 853macOS 10.15.1 2019-10-29 [APL] (security/critical release) 854FreeBSD 12.1 2019-11-04 [FBD] 855NetBSD 9.0 2020-02-14 [NBD] 856DragonFly 5.8 2020-03-03 [DFB] 857DragonFly 5.6.3 2020-03-11 [DFB] 858NetBSD 8.2 2020-03-31 [NBD] 859DragonFly 5.8.1 2020-05-06 [DFB] 860OpenBSD 6.7 2020-05-19 [OBD] 861FreeBSD 11.4 2020-06-16 [FBD] 862DragonFly 5.8.2 2020-09-23 [DFB] 863DragonFly 5.8.3 2020-09-24 [DFB] 864OpenBSD 6.8 2020-10-18 [OBD] 865NetBSD 9.1 2020-10-18 [NBD] 866FreeBSD 12.2 2020-10-27 [FBD] 867macOS 11 2020-11-19 [APL] 868FreeBSD 13.0 2021-04-13 [FBD] 869OpenBSD 6.9 2021-05-01 [OBD] 870DragonFly 6.0 2021-05-08 [DFB] 871NetBSD 9.2 2021-05-12 [NBD] 872DragonFly 6.0.1 2021-10-12 [DFB] 873OpenBSD 7.0 2021-10-14 [OBD] 874macOS 12 2021-10-25 [APL] 875FreeBSD 12.3 2021-12-01 [FBD] 876DragonFly 6.2.1 2022-01-09 [DFB] 877OpenBSD 7.1 2022-04-21 [OBD] 878FreeBSD 13.1 2022-05-17 [FBD] 879DragonFly 6.2.2 2022-06-09 [DFB] 880NetBSD 9.3 2022-08-04 [NBD] 881OpenBSD 7.2 2022-10-20 [OBD] 882macOS 13 2022-10-24 [APL] 883FreeBSD 12.4 2022-12-05 [FBD] 884DragonFly 6.4 2022-12-30 [DFB] 885OpenBSD 7.3 2023-04-10 [OBD] 886FreeBSD 13.2 2023-04-11 [FBD] 887macOS 14 2023-09-26 [APL] 888OpenBSD 7.4 2023-10-16 [OBD] 889FreeBSD 14.0 2023-11-20 [FBD] 890FreeBSD 13.3 2024-03-05 [FBD] 891NetBSD 10.0 2024-03-28 [NBD] 892 893Bibliography 894------------------------ 895 896Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 897Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 898System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 899 900Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 901Company, Inc., 1994. ISBN 0-201-54777-5 902 903McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 904Quarterman. The Design and Implementation of the 4.4BSD Operating 905System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 906 907McKusick, Marshall Kirk, George Neville-Neil. The Design and 908Implementation of the FreeBSD Operating System. 909Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 910 911McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 912Design and Implementation of the FreeBSD Operating System, 2nd Edition. 913Pearson Education, Inc., 2014. ISBN 0-321-96897-2 914 915Doug McIlroy. Research Unix Reader. 916 917Michael G. Brown. The Role of BSD in the Development of Unix. 918Presented to the Tasmanian Unix Special Interest Group of the 919Australian Computer Society, Hobart, August 1993. 920 921Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 922URL: https://web.archive.org/web/20081230094857/http://www.byte.com/art/9410/sec8/art3.htm 923 924Andreas Klemm, Lars Köller. If you're going to San Francisco ... 925Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 926 927FreeBSD Release Information 928URL: https://www.FreeBSD.org/releases/ 929 930Manual pages for FreeBSD and ports 931URL: https://man.FreeBSD.org/cgi/man.cgi 932 933UNIX history graphing project 934URL: https://minnie.tuhs.org/Unix_History/index.html 935 936UNIX history 937URL: https://www.levenez.com/unix/ 938 939James Howard: The BSD Family Tree 940URL: https://web.archive.org/web/20090427195917/http://ezine.daemonnews.org/200104/bsd_family.html 941("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 942 943 944Acknowledgments 945--------------- 946 947Josh Gilliam for suggestions, bug fixes, and finding very old 948original BSD announcements from Usenet or tapes. 949 950Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 951 952-- 953Copyright (c) 1997-2023 Wolfram Schneider <wosch@FreeBSD.org> 954URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree 955