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 | FreeBSD | | 8.3 | | 466 | 14.1 | | | | 467 | | | | | 468FreeBSD 15 -current | NetBSD -current OpenBSD -current DragonFly -current 469 | | | | | 470 v v v v v 471 472Time 473---------------- 474 475Time tolerance +/- 6 months, depending on which book/article you read; if it was 476the announcement in Usenet or if it was available as tape. 477 478[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 479 Quarterman. The Design and Implementation of the 4.4BSD Operating System. 480[APL] Apple website [https://www.apple.com/macosx/] 481[BSDI] Berkeley Software Design, Inc. 482[DFB] DragonFlyBSD Project, The. 483[DOC] README, COPYRIGHT on tape. 484[FBD] FreeBSD Project, The. 485[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, Volume 11, 486 Info 4, April, 1987. 487[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 488 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 489[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. Changes in the 490 Kernel in 2.9BSD. Second Berkeley Software Distribution UNIX Version 2.9, 491 July, 1983. 492[NBD] NetBSD Project, The. 493[OBD] OpenBSD Project, The. 494[QCU] Salus, Peter H. A quarter century of UNIX. ISBN 0201547775, EAN 495 9780201547771 496[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 497[TUHS] The Unix Historical Society. https://minnie.tuhs.org/Unix_History/ 498[USE] Usenet announcement. 499[WRS] Wind River Systems, Inc. 500[dmr] Dennis Ritchie, via E-Mail 501 502Multics 1965 503UNIX Summer 1969 504 DEC PDP-7 505First Edition 1971-11-03 [QCU] 506 DEC PDP-11/20, Assembler 507Second Edition 1972-06-12 [QCU] 508 10 UNIX installations 509Third Edition 1973-02-xx [QCU] 510 Pipes, 16 installations 511Fourth Edition 1973-11-xx [QCU] 512 rewriting in C effected, 513 above 30 installations 514Fifth Edition 1974-06-xx [QCU] 515 above 50 installations 516Sixth Edition 1975-05-xx [QCU] 517 port to DEC Vax 518Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 519 first portable UNIX 520Eighth Edition 1985-02-xx [QCU] 521 VAX 11/750, VAX 11/780 [dmr] 522 descended from 4.1c BSD [dmr] 523 descended from 4.1 BSD [44B] 524 scooping-out and replacement of the character-device 525 and networking part by the streams mechanism 526 527Ninth Edition 1986-09-xx [QCU] 528Tenth Edition 1989-10-xx [QCU] 529 5301BSD late 1977 531 1978-01-16 [DOC] 532 1978-03-09 [QCU] 533 PDP-11, Pascal, ex(1) 534 30 free copies of 1BSD sent out 535 35 tapes sold for 50 USD [QCU] 5362BSD mid 1978 [QCU] 1979-05-10 [TUHS] 537 75 2BSD tapes shipped 5382.79BSD 1980-04-xx [TUHS] 5392.8BSD 1981-07-xx [KSJ] 540 First 2BSD with bootable V7 kernel plus 541 community fixes. 5422.8.1BSD 1982-01-xx [QCU] 543 set of performance improvements 5442.9BSD 1983-07-xx [KSJ] 5452.9.1BSD 1983-11-xx [TUHS] 5462.9BSD-Seismo 1985-08-xx [SMS] 5472.10BSD 1987-04-xx [KKK] 5482.10.1BSD 1989-01-xx [SMS] 5492.11BSD 1991-03-14 [SMS] 5502.11BSD rev #430 1999-12-13 [SMS] 551 55232V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5533BSD late 1979 [QCU] March 1980 [TUHS] 554 virtual memory, page replacement, 555 demand paging 5564.0BSD 1980-10-xx 5574.1BSD 1981-07-08 [DOC] 5584.1aBSD 1982-04-xx 559 alpha release, 100 sites, networking [44B] 5604.1bBSD internal release, fast filesystem [44B] 5614.1cBSD late 1982 562 beta release, IPC [44B] 5634.2BSD 1983-09-xx [QCU] 564 1983-08-03 [DOC] 5654.3BSD 1986-06-xx [QCU] 566 1986-04-05 [KB], [DOC] 5674.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5684.3BSD NET/1 1988-11-xx [QCU] 569 1989-01-01 [DOC] 5704.3BSD Reno 1990-06-29 [QCU], [DOC] 5714.3BSD NET/2 1991-06-28 [QCU], [DOC] 572 573BSD/386 ALPHA 1991-12-xx [BSDI] 574 first code released to people outside BSDI 575386BSD 0.0 1992-02-xx [DOC] 576BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 577BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 578386BSD 0.1 1992-07-28 [DOC] 5794.4BSD Alpha 1992-07-07 580BSD/386 0.9.3 1992-10-xx [BSDI] 581 first external gamma; G customers 582BSD/386 0.9.4 1992-12-xx [BSDI] 583 would have been 1.0 except for request 584 for preliminary injunction 585BSD/386 1.0 1993-03-xx [BSDI] 586 injunction denied; first official release 587NetBSD 0.8 1993-04-20 [NBD] 5884.4BSD 1993-06-01 [USE] 589NetBSD 0.9 1993-08-23 [NBD] 590FreeBSD 1.0 1993-11-01 [FBD] 591FreeBSD 1.0.2 1993-11-14 [FBD] 592 supersedes 1.0 13 days after release. 593BSD/386 1.1 1994-02-xx [BSDI] 5944.4BSD Lite 1994-03-01 [USE] 595FreeBSD 1.1 1994-05-07 [FBD] 596FreeBSD 1.1.5 1994-06-30 [FBD] 597FreeBSD 1.1.5.1 1994-07-05 [FBD] 598 supersedes 1.1.5 5 days after release. 599NetBSD 1.0 1994-10-26 [NBD] 600386BSD 1.0 1994-11-12 [USE] 601FreeBSD 2.0 1994-11-23 [FBD] 602BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 603FreeBSD 2.0.5 1995-06-10 [FBD] 604BSD/OS 2.0.1 1995-06-xx [BSDI] 6054.4BSD Lite Release 2 1995-06-xx [44B] 606 the true final distribution from the CSRG 607FreeBSD 2.1.0 1995-11-19 [FBD] 608NetBSD 1.1 1995-11-26 [NBD] 609BSD/OS 2.1 1996-01-xx [BSDI] 610FreeBSD 2.1.5 1996-07-14 [FBD] 611NetBSD 1.2 1996-10-04 [NBD] 612OpenBSD 2.0 1996-10-18 [OBD] 613FreeBSD 2.1.6 1996-11-16 [FBD] 614FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 615Rhapsody 1997-xx-xx 616FreeBSD 2.1.7 1997-02-20 [FBD] 617BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 618FreeBSD 2.2.0 1997-03-16 [FBD] 619FreeBSD 2.2.1 1997-03-25 [FBD] 620FreeBSD 2.2.2 1997-05-16 [FBD] 621NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 622OpenBSD 2.1 1997-06-01 [OBD] 623FreeBSD 2.2.5 1997-10-22 [FBD] 624OpenBSD 2.2 1997-12-01 [OBD] 625NetBSD 1.3 1998-01-04 [NBD] 626FreeBSD 2.2.6 1998-03-25 [FBD] 627NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 628BSD/OS 3.1 1998-03-xx [BSDI] 629OpenBSD 2.3 1998-05-19 [OBD] 630NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 631FreeBSD 2.2.7 1998-07-22 [FBD] 632BSD/OS 4.0 1998-08-xx [BSDI] 633 2-lock MP support, ELF executables 634FreeBSD 3.0 1998-10-16 [FBD] 635 FreeBSD-3.0 is a snapshot from -current, 636 while 3.1 and 3.2 are from 3.x-stable which 637 was branched quite some time after 3.0-release 638FreeBSD 2.2.8 1998-11-29 [FBD] 639OpenBSD 2.4 1998-12-01 [OBD] 640NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 641FreeBSD 3.1 1999-02-15 [FBD] 642BSD/OS 4.0.1 1999-03-xx [BSDI] 643NetBSD 1.4 1999-05-12 [NBD] 644FreeBSD 3.2 1999-05-17 [FBD] 645OpenBSD 2.5 1999-05-19 [OBD] 646NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 647FreeBSD 3.3 1999-09-17 [FBD] 648OpenBSD 2.6 1999-12-01 [OBD] 649FreeBSD 3.4 1999-12-20 [FBD] 650BSD/OS 4.1 1999-12-xx [BSDI] 651FreeBSD 4.0 2000-03-13 [FBD] 652NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 653OpenBSD 2.7 2000-06-15 [OBD] 654FreeBSD 3.5 2000-06-24 [FBD] 655FreeBSD 4.1 2000-07-27 [FBD] 656FreeBSD 3.5.1 2000-07-28 [FBD] 657FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 658FreeBSD 4.2 2000-11-21 [FBD] 659NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 660BSD/OS 4.2 2000-11-29 [BSDI] 661OpenBSD 2.8 2000-12-01 [OBD] 662NetBSD 1.5 2000-12-06 [NBD] 663Mac OS X 10.0 2001-03-24 [APL] 664FreeBSD 4.3 2001-04-20 [FBD] 665OpenBSD 2.9 2001-06-01 [OBD] 666NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 667NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 668FreeBSD 4.4 2001-09-18 [FBD] 669Mac OS X 10.1 2001-09-29 [APL] 670OpenBSD 3.0 2001-12-01 [OBD] 671FreeBSD 4.5 2002-01-29 [FBD] 672BSD/OS 4.3 2002-03-14 [WRS] 673OpenBSD 3.1 2002-05-19 [OBD] 674FreeBSD 4.6 2002-06-15 [FBD] 675NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 676FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 677Mac OS X 10.2 2002-08-23 [APL] 678NetBSD 1.6 2002-09-14 [NBD] 679FreeBSD 4.7 2002-10-08 [FBD] 680OpenBSD 3.2 2002-11-01 [OBD] 681FreeBSD 5.0 2003-01-17 [FBD] 682 FreeBSD 5.0 is a separate branch off of 683 -current, similar to 3.0. 684FreeBSD 4.8 2003-04-03 [FBD] 685NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 686OpenBSD 3.3 2003-05-01 [OBD] 687BSD/OS 5.0 2003-05-?? [WRS] 688FreeBSD 5.1 2003-06-09 [FBD] 689Mac OS X 10.3 2003-10-24 [APL] 690FreeBSD 4.9 2003-10-28 [FBD] 691BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 692OpenBSD 3.4 2003-11-01 [OBD] 693FreeBSD 5.2 2004-01-12 [FBD] 694FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 695NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 696OpenBSD 3.5 2004-04-01 [OBD] 697FreeBSD 4.10 2004-05-27 [FBD] 698DragonFly 1.0 2004-07-12 [DFB] 699OpenBSD 3.6 2004-10-29 [OBD] 700FreeBSD 5.3 2004-11-06 [FBD] 701NetBSD 2.0 2004-12-09 [NBD] 702FreeBSD 4.11 2005-01-25 [FBD] 703DragonFly 1.2.0 2005-04-08 [DFB] 704NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 705Mac OS X 10.4 2005-04-29 [APL] 706FreeBSD 5.4 2005-05-09 [FBD] 707OpenBSD 3.7 2005-05-19 [OBD] 708NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 709OpenBSD 3.8 2005-11-01 [OBD] 710FreeBSD 6.0 2005-11-01 [FBD] 711NetBSD 2.1 2005-11-02 [NBD] 712NetBSD 3.0 2005-12-23 [NBD] 713DragonFly 1.4.0 2006-01-08 [DFB] 714FreeBSD 2.2.9 2006-04-01 [FBD] 715OpenBSD 3.9 2006-05-01 [OBD] 716FreeBSD 6.1 2006-05-08 [FBD] 717FreeBSD 5.5 2006-05-25 [FBD] 718NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 719DragonFly 1.6.0 2006-07-24 [DFB] 720OpenBSD 4.0 2006-11-01 [OBD] 721NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 722NetBSD 3.1 2006-11-04 [NBD] 723FreeBSD 6.2 2007-01-15 [FBD] 724DragonFly 1.8.0 2007-01-30 [DFB] 725OpenBSD 4.1 2007-05-01 [OBD] 726DragonFly 1.10.0 2007-08-06 [DFB] 727Mac OS X 10.5 2007-10-26 [APL] 728OpenBSD 4.2 2007-11-01 [OBD] 729NetBSD 4.0 2007-12-19 [NBD] 730FreeBSD 6.3 2008-01-18 [FBD] 731DragonFly 1.12.0 2008-02-26 [DFB] 732FreeBSD 7.0 2008-02-27 [FBD] 733OpenBSD 4.3 2008-05-01 [OBD] 734DragonFly 2.0.0 2008-07-21 [DFB] 735OpenBSD 4.4 2008-11-01 [OBD] 736FreeBSD 6.4 2008-11-28 [FBD] 737FreeBSD 7.1 2009-01-04 [FBD] 738DragonFly 2.2.0 2009-02-17 [DFB] 739NetBSD 5.0 2009-04-29 [NBD] 740OpenBSD 4.5 2009-05-01 [OBD] 741FreeBSD 7.2 2009-05-04 [FBD] 742Mac OS X 10.6 2009-06-08 [APL] 743NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 744DragonFly 2.4.0 2009-09-16 [DFB] 745OpenBSD 4.6 2009-10-18 [OBD] 746FreeBSD 8.0 2009-11-26 [FBD] 747NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 748FreeBSD 7.3 2010-03-23 [FBD] 749DragonFly 2.6.0 2010-03-28 [DFB] 750OpenBSD 4.7 2010-05-19 [OBD] 751FreeBSD 8.1 2010-07-24 [FBD] 752DragonFly 2.8.2 2010-10-30 [DFB] 753OpenBSD 4.8 2010-11-01 [OBD] 754NetBSD 5.1 2010-11-19 [NBD] 755FreeBSD 7.4 2011-02-24 [FBD] 756FreeBSD 8.2 2011-02-24 [FBD] 757DragonFly 2.10.1 2011-04-26 [DFB] 758OpenBSD 4.9 2011-05-01 [OBD] 759Mac OS X 10.7 2011-07-20 [APL] 760OpenBSD 5.0 2011-11-01 [OBD] 761FreeBSD 9.0 2012-01-12 [FBD] 762NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 763DragonFly 3.0.1 2012-02-21 [DFB] 764FreeBSD 8.3 2012-04-18 [FBD] 765OpenBSD 5.1 2012-05-01 [OBD] 766Mac OS X 10.8 2012-07-25 [APL] 767NetBSD 6.0 2012-10-17 [NBD] 768OpenBSD 5.2 2012-11-01 [OBD] 769DragonFly 3.2.1 2012-11-02 [DFB] 770NetBSD 5.2 2012-12-03 [NBD] 771NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 772FreeBSD 9.1 2012-12-30 [FBD] 773DragonFly 3.4.1 2013-04-29 [DFB] 774OpenBSD 5.3 2013-05-01 [OBD] 775NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 776NetBSD 6.1 2013-05-18 [NBD] 777FreeBSD 8.4 2013-06-07 [FBD] 778NetBSD 6.1.1 2013-08-22 [NBD] 779NetBSD 5.1.3 2013-09-29 [NBD] 780NetBSD 5.2.1 2013-09-29 [NBD] 781FreeBSD 9.2 2013-09-30 [FBD] 782NetBSD 6.0.3 2013-09-30 [NBD] 783NetBSD 6.1.2 2013-09-30 [NBD] 784Mac OS X 10.9 2013-10-22 [APL] 785OpenBSD 5.4 2013-11-01 [OBD] 786DragonFly 3.6.0 2013-11-25 [DFB] 787FreeBSD 10.0 2014-01-20 [FBD] 788NetBSD 5.1.4 2014-01-25 [NBD] 789NetBSD 5.2.2 2014-01-25 [NBD] 790NetBSD 6.0.4 2014-01-25 [NBD] 791NetBSD 6.1.3 2014-01-25 [NBD] 792DragonFly 3.6.1 2014-02-22 [DFB] 793DragonFly 3.6.2 2014-04-10 [DFB] 794NetBSD 6.0.5 2014-04-12 [NBD] 795NetBSD 6.1.4 2014-04-12 [NBD] 796OpenBSD 5.5 2014-05-01 [OBD] 797DragonFly 3.8.0 2014-06-04 [DFB] 798DragonFly 3.8.1 2014-06-16 [DFB] 799DragonFly 3.6.3 2014-06-17 [DFB] 800FreeBSD 9.3 2014-07-05 [FBD] 801DragonFly 3.8.2 2014-08-08 [DFB] 802NetBSD 6.0.6 2014-09-22 [NBD] 803NetBSD 6.1.5 2014-09-22 [NBD] 804Mac OS X 10.10 2014-10-16 [APL] 805OpenBSD 5.6 2014-11-01 [OBD] 806FreeBSD 10.1 2014-11-14 [FBD] 807DragonFly 4.0.1 2014-11-25 [DFB] 808DragonFly 4.0.2 2015-01-07 [DFB] 809DragonFly 4.0.3 2015-01-21 [DFB] 810DragonFly 4.0.4 2015-03-09 [DFB] 811DragonFly 4.0.5 2015-03-23 [DFB] 812OpenBSD 5.7 2015-05-01 [OBD] 813DragonFly 4.2.0 2015-06-29 [DFB] 814FreeBSD 10.2 2015-08-13 [FBD] 815NetBSD 7.0 2015-09-25 [NBD] 816OS X 10.11 2015-09-30 [APL] 817OpenBSD 5.8 2015-10-18 [OBD] 818DragonFly 4.4.1 2015-12-07 [DFB] 819OpenBSD 5.9 2016-03-29 [OBD] 820FreeBSD 10.3 2016-04-04 [FBD] 821NetBSD 7.0.1 2016-05-22 [NBD] 822DragonFly 4.6.0 2016-08-02 [DFB] 823OpenBSD 6.0 2016-09-01 [OBD] 824macOS 10.12 2016-09-20 [APL] 825FreeBSD 11.0 2016-10-10 [FBD] 826NetBSD 7.0.2 2016-10-21 [NBD] 827NetBSD 7.1 2017-03-11 [NBD] 828DragonFly 4.8.0 2017-03-27 [DFB] 829OpenBSD 6.1 2017-04-11 [OBD] 830FreeBSD 11.1 2017-07-26 [FBD] 831macOS 10.13 2017-09-25 [APL] 832FreeBSD 10.4 2017-10-03 [FBD] 833OpenBSD 6.2 2017-10-09 [OBD] 834DragonFly 5.0.0 2017-10-16 [DFB] 835DragonFly 5.0.1 2017-11-06 [DFB] 836DragonFly 5.0.2 2017-12-04 [DFB] 837NetBSD 7.1.1 2017-12-22 [NBD] 838NetBSD 7.1.2 2018-03-15 [NBD] 839OpenBSD 6.3 2018-04-02 [OBD] 840DragonFly 5.2.0 2018-04-10 [DFB] 841DragonFly 5.2.1 2018-05-20 [DFB] 842DragonFly 5.2.2 2018-06-18 [DFB] 843FreeBSD 11.2 2018-06-27 [FBD] 844NetBSD 8.0 2018-07-17 [NBD] 845NetBSD 7.2 2018-08-29 [NBD] 846macOS 10.14 2018-09-24 [APL] 847OpenBSD 6.4 2018-10-18 [OBD] 848DragonFly 5.4.0 2018-12-03 [DFB] 849FreeBSD 12.0 2018-12-11 [FBD] 850DragonFly 5.4.1 2018-12-24 [DFB] 851OpenBSD 6.5 2019-05-01 [OBD] 852NetBSD 8.1 2019-06-04 [NBD] 853DragonFly 5.6 2019-06-17 [DFB] 854DragonFly 5.6.1 2019-06-19 [DFB] 855FreeBSD 11.3 2019-07-09 [FBD] 856DragonFly 5.6.2 2019-08-11 [DFB] 857OpenBSD 6.6 2019-10-17 [OBD] 858macOS 10.15 2019-10-07 [APL] 859macOS 10.15.1 2019-10-29 [APL] (security/critical release) 860FreeBSD 12.1 2019-11-04 [FBD] 861NetBSD 9.0 2020-02-14 [NBD] 862DragonFly 5.8 2020-03-03 [DFB] 863DragonFly 5.6.3 2020-03-11 [DFB] 864NetBSD 8.2 2020-03-31 [NBD] 865DragonFly 5.8.1 2020-05-06 [DFB] 866OpenBSD 6.7 2020-05-19 [OBD] 867FreeBSD 11.4 2020-06-16 [FBD] 868DragonFly 5.8.2 2020-09-23 [DFB] 869DragonFly 5.8.3 2020-09-24 [DFB] 870OpenBSD 6.8 2020-10-18 [OBD] 871NetBSD 9.1 2020-10-18 [NBD] 872FreeBSD 12.2 2020-10-27 [FBD] 873macOS 11 2020-11-12 [APL] 874FreeBSD 13.0 2021-04-13 [FBD] 875OpenBSD 6.9 2021-05-01 [OBD] 876DragonFly 6.0 2021-05-08 [DFB] 877NetBSD 9.2 2021-05-12 [NBD] 878DragonFly 6.0.1 2021-10-12 [DFB] 879OpenBSD 7.0 2021-10-14 [OBD] 880macOS 12 2021-10-25 [APL] 881FreeBSD 12.3 2021-12-01 [FBD] 882DragonFly 6.2.1 2022-01-09 [DFB] 883OpenBSD 7.1 2022-04-21 [OBD] 884FreeBSD 13.1 2022-05-17 [FBD] 885DragonFly 6.2.2 2022-06-09 [DFB] 886NetBSD 9.3 2022-08-04 [NBD] 887OpenBSD 7.2 2022-10-20 [OBD] 888macOS 13 2022-10-24 [APL] 889FreeBSD 12.4 2022-12-05 [FBD] 890DragonFly 6.4 2022-12-30 [DFB] 891OpenBSD 7.3 2023-04-10 [OBD] 892FreeBSD 13.2 2023-04-11 [FBD] 893macOS 14 2023-09-26 [APL] 894OpenBSD 7.4 2023-10-16 [OBD] 895FreeBSD 14.0 2023-11-20 [FBD] 896FreeBSD 13.3 2024-03-05 [FBD] 897NetBSD 10.0 2024-03-28 [NBD] 898OpenBSD 7.5 2024-04-05 [OBD] 899NetBSD 9.4 2024-04-20 [NBD] 900NetBSD 8.3 2024-05-04 [NBD] 901FreeBSD 14.1 2024-06-04 [FBD] 902 903Bibliography 904------------------------ 905 906Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 907Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 908System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 909 910Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 911Company, Inc., 1994. ISBN 0-201-54777-5 912 913McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 914Quarterman. The Design and Implementation of the 4.4BSD Operating 915System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 916 917McKusick, Marshall Kirk, George Neville-Neil. The Design and 918Implementation of the FreeBSD Operating System. 919Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 920 921McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 922Design and Implementation of the FreeBSD Operating System, 2nd Edition. 923Pearson Education, Inc., 2014. ISBN 0-321-96897-2 924 925Doug McIlroy. Research Unix Reader. 926 927Michael G. Brown. The Role of BSD in the Development of Unix. 928Presented to the Tasmanian Unix Special Interest Group of the 929Australian Computer Society, Hobart, August 1993. 930 931Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 932URL: https://web.archive.org/web/20081230094857/http://www.byte.com/art/9410/sec8/art3.htm 933 934Andreas Klemm, Lars Köller. If you're going to San Francisco ... 935Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 936 937FreeBSD Release Information 938URL: https://www.FreeBSD.org/releases/ 939 940Manual pages for FreeBSD and ports 941URL: https://man.FreeBSD.org 942 943FreeBSD Documentation Archive 944URL: https://docs-archive.freebsd.org/doc/ 945 946UNIX history graphing project 947URL: https://minnie.tuhs.org/Unix_History/ 948 949UNIX history 950URL: https://www.levenez.com/unix/ 951 952James Howard: The BSD Family Tree 953URL: https://web.archive.org/web/20090427195917/http://ezine.daemonnews.org/200104/bsd_family.html 954("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 955 956 957Acknowledgments 958--------------- 959 960Josh Gilliam for suggestions, bug fixes, and finding very old 961original BSD announcements from Usenet or tapes. 962 963Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 964 965-- 966Copyright (c) 1997-2024 Wolfram Schneider <wosch@FreeBSD.org> 967URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree 968