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 | | | | | 460FreeBSD 15 -current | NetBSD -current OpenBSD -current DragonFly -current 461 | | | | | 462 v v v v v 463 464Time 465---------------- 466 467Time tolerance +/- 6 months, depending on which book/article you read; if it was 468the announcement in Usenet or if it was available as tape. 469 470[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 471 Quarterman. The Design and Implementation of the 4.4BSD Operating System. 472[APL] Apple website [https://www.apple.com/macosx/] 473[BSDI] Berkeley Software Design, Inc. 474[DFB] DragonFlyBSD Project, The. 475[DOC] README, COPYRIGHT on tape. 476[FBD] FreeBSD Project, The. 477[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, Volume 11, 478 Info 4, April, 1987. 479[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 480 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 481[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. Changes in the 482 Kernel in 2.9BSD. Second Berkeley Software Distribution UNIX Version 2.9, 483 July, 1983. 484[NBD] NetBSD Project, The. 485[OBD] OpenBSD Project, The. 486[QCU] Salus, Peter H. A quarter century of UNIX. ISBN 0201547775, EAN 487 9780201547771 488[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 489[TUHS] The Unix Historical Society. https://minnie.tuhs.org/Unix_History/. 490[USE] Usenet announcement. 491[WRS] Wind River Systems, Inc. 492[dmr] Dennis Ritchie, via E-Mail 493 494Multics 1965 495UNIX Summer 1969 496 DEC PDP-7 497First Edition 1971-11-03 [QCU] 498 DEC PDP-11/20, Assembler 499Second Edition 1972-06-12 [QCU] 500 10 UNIX installations 501Third Edition 1973-02-xx [QCU] 502 Pipes, 16 installations 503Fourth Edition 1973-11-xx [QCU] 504 rewriting in C effected, 505 above 30 installations 506Fifth Edition 1974-06-xx [QCU] 507 above 50 installations 508Sixth Edition 1975-05-xx [QCU] 509 port to DEC Vax 510Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 511 first portable UNIX 512Eighth Edition 1985-02-xx [QCU] 513 VAX 11/750, VAX 11/780 [dmr] 514 descended from 4.1c BSD [dmr] 515 descended from 4.1 BSD [44B] 516 scooping-out and replacement of the character-device 517 and networking part by the streams mechanism 518 519Ninth Edition 1986-09-xx [QCU] 520Tenth Edition 1989-10-xx [QCU] 521 5221BSD late 1977 523 1978-01-16 [DOC] 524 1978-03-09 [QCU] 525 PDP-11, Pascal, ex(1) 526 30 free copies of 1BSD sent out 527 35 tapes sold for 50 USD [QCU] 5282BSD mid 1978 [QCU] 1979-05-10 [TUHS] 529 75 2BSD tapes shipped 5302.79BSD 1980-04-xx [TUHS] 5312.8BSD 1981-07-xx [KSJ] 532 First 2BSD with bootable V7 kernel plus 533 community fixes. 5342.8.1BSD 1982-01-xx [QCU] 535 set of performance improvements 5362.9BSD 1983-07-xx [KSJ] 5372.9.1BSD 1983-11-xx [TUHS] 5382.9BSD-Seismo 1985-08-xx [SMS] 5392.10BSD 1987-04-xx [KKK] 5402.10.1BSD 1989-01-xx [SMS] 5412.11BSD 1991-03-14 [SMS] 5422.11BSD rev #430 1999-12-13 [SMS] 543 54432V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5453BSD late 1979 [QCU] March 1980 [TUHS] 546 virtual memory, page replacement, 547 demand paging 5484.0BSD 1980-10-xx 5494.1BSD 1981-07-08 [DOC] 5504.1aBSD 1982-04-xx 551 alpha release, 100 sites, networking [44B] 5524.1bBSD internal release, fast filesystem [44B] 5534.1cBSD late 1982 554 beta release, IPC [44B] 5554.2BSD 1983-09-xx [QCU] 556 1983-08-03 [DOC] 5574.3BSD 1986-06-xx [QCU] 558 1986-04-05 [KB], [DOC] 5594.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5604.3BSD NET/1 1988-11-xx [QCU] 561 1989-01-01 [DOC] 5624.3BSD Reno 1990-06-29 [QCU], [DOC] 5634.3BSD NET/2 1991-06-28 [QCU], [DOC] 564 565BSD/386 ALPHA 1991-12-xx [BSDI] 566 first code released to people outside BSDI 567386BSD 0.0 1992-02-xx [DOC] 568BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 569BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 570386BSD 0.1 1992-07-28 [DOC] 5714.4BSD Alpha 1992-07-07 572BSD/386 0.9.3 1992-10-xx [BSDI] 573 first external gamma; G customers 574BSD/386 0.9.4 1992-12-xx [BSDI] 575 would have been 1.0 except for request 576 for preliminary injunction 577BSD/386 1.0 1993-03-xx [BSDI] 578 injunction denied; first official release 579NetBSD 0.8 1993-04-20 [NBD] 5804.4BSD 1993-06-01 [USE] 581NetBSD 0.9 1993-08-23 [NBD] 582FreeBSD 1.0 1993-11-01 [FBD] 583FreeBSD 1.0.2 1993-11-14 [FBD] 584 supersedes 1.0 13 days after release. 585BSD/386 1.1 1994-02-xx [BSDI] 5864.4BSD Lite 1994-03-01 [USE] 587FreeBSD 1.1 1994-05-07 [FBD] 588FreeBSD 1.1.5 1994-06-30 [FBD] 589FreeBSD 1.1.5.1 1994-07-05 [FBD] 590 supersedes 1.1.5 5 days after release. 591NetBSD 1.0 1994-10-26 [NBD] 592386BSD 1.0 1994-11-12 [USE] 593FreeBSD 2.0 1994-11-23 [FBD] 594BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 595FreeBSD 2.0.5 1995-06-10 [FBD] 596BSD/OS 2.0.1 1995-06-xx [BSDI] 5974.4BSD Lite Release 2 1995-06-xx [44B] 598 the true final distribution from the CSRG 599FreeBSD 2.1.0 1995-11-19 [FBD] 600NetBSD 1.1 1995-11-26 [NBD] 601BSD/OS 2.1 1996-01-xx [BSDI] 602FreeBSD 2.1.5 1996-07-14 [FBD] 603NetBSD 1.2 1996-10-04 [NBD] 604OpenBSD 2.0 1996-10-18 [OBD] 605FreeBSD 2.1.6 1996-11-16 [FBD] 606FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 607Rhapsody 1997-xx-xx 608FreeBSD 2.1.7 1997-02-20 [FBD] 609BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 610FreeBSD 2.2.0 1997-03-16 [FBD] 611FreeBSD 2.2.1 1997-03-25 [FBD] 612FreeBSD 2.2.2 1997-05-16 [FBD] 613NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 614OpenBSD 2.1 1997-06-01 [OBD] 615FreeBSD 2.2.5 1997-10-22 [FBD] 616OpenBSD 2.2 1997-12-01 [OBD] 617NetBSD 1.3 1998-01-04 [NBD] 618FreeBSD 2.2.6 1998-03-25 [FBD] 619NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 620BSD/OS 3.1 1998-03-xx [BSDI] 621OpenBSD 2.3 1998-05-19 [OBD] 622NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 623FreeBSD 2.2.7 1998-07-22 [FBD] 624BSD/OS 4.0 1998-08-xx [BSDI] 625 2-lock MP support, ELF executables 626FreeBSD 3.0 1998-10-16 [FBD] 627 FreeBSD-3.0 is a snapshot from -current, 628 while 3.1 and 3.2 are from 3.x-stable which 629 was branched quite some time after 3.0-release 630FreeBSD 2.2.8 1998-11-29 [FBD] 631OpenBSD 2.4 1998-12-01 [OBD] 632NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 633FreeBSD 3.1 1999-02-15 [FBD] 634BSD/OS 4.0.1 1999-03-xx [BSDI] 635NetBSD 1.4 1999-05-12 [NBD] 636FreeBSD 3.2 1999-05-17 [FBD] 637OpenBSD 2.5 1999-05-19 [OBD] 638NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 639FreeBSD 3.3 1999-09-17 [FBD] 640OpenBSD 2.6 1999-12-01 [OBD] 641FreeBSD 3.4 1999-12-20 [FBD] 642BSD/OS 4.1 1999-12-xx [BSDI] 643FreeBSD 4.0 2000-03-13 [FBD] 644NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 645OpenBSD 2.7 2000-06-15 [OBD] 646FreeBSD 3.5 2000-06-24 [FBD] 647FreeBSD 4.1 2000-07-27 [FBD] 648FreeBSD 3.5.1 2000-07-28 [FBD] 649FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 650FreeBSD 4.2 2000-11-21 [FBD] 651NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 652BSD/OS 4.2 2000-11-29 [BSDI] 653OpenBSD 2.8 2000-12-01 [OBD] 654NetBSD 1.5 2000-12-06 [NBD] 655Mac OS X 10.0 2001-03-24 [APL] 656FreeBSD 4.3 2001-04-20 [FBD] 657OpenBSD 2.9 2001-06-01 [OBD] 658NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 659NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 660FreeBSD 4.4 2001-09-18 [FBD] 661Mac OS X 10.1 2001-09-29 [APL] 662OpenBSD 3.0 2001-12-01 [OBD] 663FreeBSD 4.5 2002-01-29 [FBD] 664BSD/OS 4.3 2002-03-14 [WRS] 665OpenBSD 3.1 2002-05-19 [OBD] 666FreeBSD 4.6 2002-06-15 [FBD] 667NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 668FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 669Mac OS X 10.2 2002-08-23 [APL] 670NetBSD 1.6 2002-09-14 [NBD] 671FreeBSD 4.7 2002-10-08 [FBD] 672OpenBSD 3.2 2002-11-01 [OBD] 673FreeBSD 5.0 2003-01-17 [FBD] 674 FreeBSD 5.0 is a separate branch off of 675 -current, similar to 3.0. 676FreeBSD 4.8 2003-04-03 [FBD] 677NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 678OpenBSD 3.3 2003-05-01 [OBD] 679BSD/OS 5.0 2003-05-?? [WRS] 680FreeBSD 5.1 2003-06-09 [FBD] 681Mac OS X 10.3 2003-10-24 [APL] 682FreeBSD 4.9 2003-10-28 [FBD] 683BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 684OpenBSD 3.4 2003-11-01 [OBD] 685FreeBSD 5.2 2004-01-12 [FBD] 686FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 687NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 688OpenBSD 3.5 2004-04-01 [OBD] 689FreeBSD 4.10 2004-05-27 [FBD] 690DragonFly 1.0 2004-07-12 [DFB] 691OpenBSD 3.6 2004-10-29 [OBD] 692FreeBSD 5.3 2004-11-06 [FBD] 693NetBSD 2.0 2004-12-09 [NBD] 694FreeBSD 4.11 2005-01-25 [FBD] 695DragonFly 1.2.0 2005-04-08 [DFB] 696NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 697Mac OS X 10.4 2005-04-29 [APL] 698FreeBSD 5.4 2005-05-09 [FBD] 699OpenBSD 3.7 2005-05-19 [OBD] 700NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 701OpenBSD 3.8 2005-11-01 [OBD] 702FreeBSD 6.0 2005-11-01 [FBD] 703NetBSD 2.1 2005-11-02 [NBD] 704NetBSD 3.0 2005-12-23 [NBD] 705DragonFly 1.4.0 2006-01-08 [DFB] 706FreeBSD 2.2.9 2006-04-01 [FBD] 707OpenBSD 3.9 2006-05-01 [OBD] 708FreeBSD 6.1 2006-05-08 [FBD] 709FreeBSD 5.5 2006-05-25 [FBD] 710NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 711DragonFly 1.6.0 2006-07-24 [DFB] 712OpenBSD 4.0 2006-11-01 [OBD] 713NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 714NetBSD 3.1 2006-11-04 [NBD] 715FreeBSD 6.2 2007-01-15 [FBD] 716DragonFly 1.8.0 2007-01-30 [DFB] 717OpenBSD 4.1 2007-05-01 [OBD] 718DragonFly 1.10.0 2007-08-06 [DFB] 719Mac OS X 10.5 2007-10-26 [APL] 720OpenBSD 4.2 2007-11-01 [OBD] 721NetBSD 4.0 2007-12-19 [NBD] 722FreeBSD 6.3 2008-01-18 [FBD] 723DragonFly 1.12.0 2008-02-26 [DFB] 724FreeBSD 7.0 2008-02-27 [FBD] 725OpenBSD 4.3 2008-05-01 [OBD] 726DragonFly 2.0.0 2008-07-21 [DFB] 727OpenBSD 4.4 2008-11-01 [OBD] 728FreeBSD 6.4 2008-11-28 [FBD] 729FreeBSD 7.1 2009-01-04 [FBD] 730DragonFly 2.2.0 2009-02-17 [DFB] 731NetBSD 5.0 2009-04-29 [NBD] 732OpenBSD 4.5 2009-05-01 [OBD] 733FreeBSD 7.2 2009-05-04 [FBD] 734Mac OS X 10.6 2009-06-08 [APL] 735NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 736DragonFly 2.4.0 2009-09-16 [DFB] 737OpenBSD 4.6 2009-10-18 [OBD] 738FreeBSD 8.0 2009-11-26 [FBD] 739NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 740FreeBSD 7.3 2010-03-23 [FBD] 741DragonFly 2.6.0 2010-03-28 [DFB] 742OpenBSD 4.7 2010-05-19 [OBD] 743FreeBSD 8.1 2010-07-24 [FBD] 744DragonFly 2.8.2 2010-10-30 [DFB] 745OpenBSD 4.8 2010-11-01 [OBD] 746NetBSD 5.1 2010-11-19 [NBD] 747FreeBSD 7.4 2011-02-24 [FBD] 748FreeBSD 8.2 2011-02-24 [FBD] 749DragonFly 2.10.1 2011-04-26 [DFB] 750OpenBSD 4.9 2011-05-01 [OBD] 751Mac OS X 10.7 2011-07-20 [APL] 752OpenBSD 5.0 2011-11-01 [OBD] 753FreeBSD 9.0 2012-01-12 [FBD] 754NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 755DragonFly 3.0.1 2012-02-21 [DFB] 756FreeBSD 8.3 2012-04-18 [FBD] 757OpenBSD 5.1 2012-05-01 [OBD] 758Mac OS X 10.8 2012-07-25 [APL] 759NetBSD 6.0 2012-10-17 [NBD] 760OpenBSD 5.2 2012-11-01 [OBD] 761DragonFly 3.2.1 2012-11-02 [DFB] 762NetBSD 5.2 2012-12-03 [NBD] 763NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 764FreeBSD 9.1 2012-12-30 [FBD] 765DragonFly 3.4.1 2013-04-29 [DFB] 766OpenBSD 5.3 2013-05-01 [OBD] 767NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 768NetBSD 6.1 2013-05-18 [NBD] 769FreeBSD 8.4 2013-06-07 [FBD] 770NetBSD 6.1.1 2013-08-22 [NBD] 771NetBSD 5.1.3 2013-09-29 [NBD] 772NetBSD 5.2.1 2013-09-29 [NBD] 773FreeBSD 9.2 2013-09-30 [FBD] 774NetBSD 6.0.3 2013-09-30 [NBD] 775NetBSD 6.1.2 2013-09-30 [NBD] 776Mac OS X 10.9 2013-10-22 [APL] 777OpenBSD 5.4 2013-11-01 [OBD] 778DragonFly 3.6.0 2013-11-25 [DFB] 779FreeBSD 10.0 2014-01-20 [FBD] 780NetBSD 5.1.4 2014-01-25 [NBD] 781NetBSD 5.2.2 2014-01-25 [NBD] 782NetBSD 6.0.4 2014-01-25 [NBD] 783NetBSD 6.1.3 2014-01-25 [NBD] 784DragonFly 3.6.1 2014-02-22 [DFB] 785DragonFly 3.6.2 2014-04-10 [DFB] 786NetBSD 6.0.5 2014-04-12 [NBD] 787NetBSD 6.1.4 2014-04-12 [NBD] 788OpenBSD 5.5 2014-05-01 [OBD] 789DragonFly 3.8.0 2014-06-04 [DFB] 790DragonFly 3.8.1 2014-06-16 [DFB] 791DragonFly 3.6.3 2014-06-17 [DFB] 792FreeBSD 9.3 2014-07-05 [FBD] 793DragonFly 3.8.2 2014-08-08 [DFB] 794NetBSD 6.0.6 2014-09-22 [NBD] 795NetBSD 6.1.5 2014-09-22 [NBD] 796Mac OS X 10.10 2014-10-16 [APL] 797OpenBSD 5.6 2014-11-01 [OBD] 798FreeBSD 10.1 2014-11-14 [FBD] 799DragonFly 4.0.1 2014-11-25 [DFB] 800DragonFly 4.0.2 2015-01-07 [DFB] 801DragonFly 4.0.3 2015-01-21 [DFB] 802DragonFly 4.0.4 2015-03-09 [DFB] 803DragonFly 4.0.5 2015-03-23 [DFB] 804OpenBSD 5.7 2015-05-01 [OBD] 805DragonFly 4.2.0 2015-06-29 [DFB] 806FreeBSD 10.2 2015-08-13 [FBD] 807NetBSD 7.0 2015-09-25 [NBD] 808OS X 10.11 2015-09-30 [APL] 809OpenBSD 5.8 2015-10-18 [OBD] 810DragonFly 4.4.1 2015-12-07 [DFB] 811OpenBSD 5.9 2016-03-29 [OBD] 812FreeBSD 10.3 2016-04-04 [FBD] 813NetBSD 7.0.1 2016-05-22 [NBD] 814DragonFly 4.6.0 2016-08-02 [DFB] 815OpenBSD 6.0 2016-09-01 [OBD] 816macOS 10.12 2016-09-20 [APL] 817FreeBSD 11.0 2016-10-10 [FBD] 818NetBSD 7.0.2 2016-10-21 [NBD] 819NetBSD 7.1 2017-03-11 [NBD] 820DragonFly 4.8.0 2017-03-27 [DFB] 821OpenBSD 6.1 2017-04-11 [OBD] 822FreeBSD 11.1 2017-07-26 [FBD] 823macOS 10.13 2017-09-25 [APL] 824FreeBSD 10.4 2017-10-03 [FBD] 825OpenBSD 6.2 2017-10-09 [OBD] 826DragonFly 5.0.0 2017-10-16 [DFB] 827DragonFly 5.0.1 2017-11-06 [DFB] 828DragonFly 5.0.2 2017-12-04 [DFB] 829NetBSD 7.1.1 2017-12-22 [NBD] 830NetBSD 7.1.2 2018-03-15 [NBD] 831OpenBSD 6.3 2018-04-02 [OBD] 832DragonFly 5.2.0 2018-04-10 [DFB] 833DragonFly 5.2.1 2018-05-20 [DFB] 834DragonFly 5.2.2 2018-06-18 [DFB] 835FreeBSD 11.2 2018-06-27 [FBD] 836NetBSD 8.0 2018-07-17 [NBD] 837NetBSD 7.2 2018-08-29 [NBD] 838macOS 10.14 2018-09-24 [APL] 839OpenBSD 6.4 2018-10-18 [OBD] 840DragonFly 5.4.0 2018-12-03 [DFB] 841FreeBSD 12.0 2018-12-11 [FBD] 842DragonFly 5.4.1 2018-12-24 [DFB] 843OpenBSD 6.5 2019-05-01 [OBD] 844NetBSD 8.1 2019-06-04 [NBD] 845DragonFly 5.6 2019-06-17 [DFB] 846DragonFly 5.6.1 2019-06-19 [DFB] 847FreeBSD 11.3 2019-07-09 [FBD] 848DragonFly 5.6.2 2019-08-11 [DFB] 849OpenBSD 6.6 2019-10-17 [OBD] 850macOS 10.15 2019-10-07 [APL] 851macOS 10.15.1 2019-10-29 [APL] (security/critical release) 852FreeBSD 12.1 2019-11-04 [FBD] 853NetBSD 9.0 2020-02-14 [NBD] 854DragonFly 5.8 2020-03-03 [DFB] 855DragonFly 5.6.3 2020-03-11 [DFB] 856NetBSD 8.2 2020-03-31 [NBD] 857DragonFly 5.8.1 2020-05-06 [DFB] 858OpenBSD 6.7 2020-05-19 [OBD] 859FreeBSD 11.4 2020-06-16 [FBD] 860DragonFly 5.8.2 2020-09-23 [DFB] 861DragonFly 5.8.3 2020-09-24 [DFB] 862OpenBSD 6.8 2020-10-18 [OBD] 863NetBSD 9.1 2020-10-18 [NBD] 864FreeBSD 12.2 2020-10-27 [FBD] 865macOS 11 2020-11-19 [APL] 866FreeBSD 13.0 2021-04-13 [FBD] 867OpenBSD 6.9 2021-05-01 [OBD] 868DragonFly 6.0 2021-05-08 [DFB] 869NetBSD 9.2 2021-05-12 [NBD] 870DragonFly 6.0.1 2021-10-12 [DFB] 871OpenBSD 7.0 2021-10-14 [OBD] 872macOS 12 2021-10-25 [APL] 873FreeBSD 12.3 2021-12-01 [FBD] 874DragonFly 6.2.1 2022-01-09 [DFB] 875OpenBSD 7.1 2022-04-21 [OBD] 876FreeBSD 13.1 2022-05-17 [FBD] 877DragonFly 6.2.2 2022-06-09 [DFB] 878NetBSD 9.3 2022-08-04 [NBD] 879OpenBSD 7.2 2022-10-20 [OBD] 880macOS 13 2022-10-24 [APL] 881FreeBSD 12.4 2022-12-05 [FBD] 882DragonFly 6.4 2022-12-30 [DFB] 883OpenBSD 7.3 2023-04-10 [OBD] 884FreeBSD 13.2 2023-04-11 [FBD] 885macOS 14 2023-09-26 [APL] 886OpenBSD 7.4 2023-10-16 [OBD] 887FreeBSD 14.0 2023-11-20 [FBD] 888FreeBSD 13.3 2024-03-05 [FBD] 889 890Bibliography 891------------------------ 892 893Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 894Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 895System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 896 897Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 898Company, Inc., 1994. ISBN 0-201-54777-5 899 900McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 901Quarterman. The Design and Implementation of the 4.4BSD Operating 902System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 903 904McKusick, Marshall Kirk, George Neville-Neil. The Design and 905Implementation of the FreeBSD Operating System. 906Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 907 908McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 909Design and Implementation of the FreeBSD Operating System, 2nd Edition. 910Pearson Education, Inc., 2014. ISBN 0-321-96897-2 911 912Doug McIlroy. Research Unix Reader. 913 914Michael G. Brown. The Role of BSD in the Development of Unix. 915Presented to the Tasmanian Unix Special Interest Group of the 916Australian Computer Society, Hobart, August 1993. 917 918Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 919URL: https://web.archive.org/web/20081230094857/http://www.byte.com/art/9410/sec8/art3.htm 920 921Andreas Klemm, Lars Köller. If you're going to San Francisco ... 922Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 923 924FreeBSD Release Information 925URL: https://www.FreeBSD.org/releases/ 926 927Manual pages for FreeBSD and ports 928URL: https://man.FreeBSD.org/cgi/man.cgi 929 930UNIX history graphing project 931URL: https://minnie.tuhs.org/Unix_History/index.html 932 933UNIX history 934URL: https://www.levenez.com/unix/ 935 936James Howard: The BSD Family Tree 937URL: https://web.archive.org/web/20090427195917/http://ezine.daemonnews.org/200104/bsd_family.html 938("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 939 940 941Acknowledgments 942--------------- 943 944Josh Gilliam for suggestions, bug fixes, and finding very old 945original BSD announcements from Usenet or tapes. 946 947Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 948 949-- 950Copyright (c) 1997-2023 Wolfram Schneider <wosch@FreeBSD.org> 951URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree 952