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 | DragonFly 5.8.1 416 | | | | | | OpenBSD 6.7 | 417 | | FreeBSD | | | | | 418 | | 11.4 | | | | | 419 | | | | | | DragonFly 5.8.2 420 | | | | | | DragonFly 5.8.3 421 | | | | NetBSD 9.1 OpenBSD 6.8 | 422 | FreeBSD | | | | | 423 | 12.2 macOS | | | | 424 | | 11 | | | | 425 | `------. | | | | | 426 | | | | | | | 427 *--FreeBSD | | | | | | 428 | 13.0 | | | NetBSD 9.2 OpenBSD 6.9 DragonFly 6.0 429 | | | | | | | | 430 | | | | | | | | 431 | | FreeBSD macOS | | OpenBSD 7.0 DragonFly 6.2.1 432 | | 12.3 12 | | | | 433 | | | | | | | 434 | | | | | OpenBSD 7.1 | 435 | FreeBSD | | | | | 436 | 13.1 | | | | | 437 | | | | | DragonFly 6.2.2 438 | | | NetBSD 9.3 | | 439 | | | | | 440FreeBSD 14 -current | NetBSD -current OpenBSD -current DragonFly -current 441 | | | | | 442 v v v v v 443 444Time 445---------------- 446 447Time tolerance +/- 6 months, depending on which book/article you read; if it 448was the announcement in Usenet or if it was available as tape. 449 450[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 451 and John Quarterman. The Design and Implementation of 452 the 4.4BSD Operating System. 453[APL] Apple website [https://www.apple.com/macosx/] 454[BSDI] Berkeley Software Design, Inc. 455[DFB] DragonFlyBSD Project, The. 456[DOC] README, COPYRIGHT on tape. 457[FBD] FreeBSD Project, The. 458[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 459 Volume 11, Info 4, April, 1987. 460[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 461 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 462[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 463 Changes in the Kernel in 2.9BSD. Second Berkeley Software 464 Distribution UNIX Version 2.9, July, 1983. 465[NBD] NetBSD Project, The. 466[OBD] OpenBSD Project, The. 467[QCU] Salus, Peter H. A quarter century of UNIX. 468[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 469[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 470[USE] Usenet announcement. 471[WRS] Wind River Systems, Inc. 472[dmr] Dennis Ritchie, via E-Mail 473 474Multics 1965 475UNIX Summer 1969 476 DEC PDP-7 477First Edition 1971-11-03 [QCU] 478 DEC PDP-11/20, Assembler 479Second Edition 1972-06-12 [QCU] 480 10 UNIX installations 481Third Edition 1973-02-xx [QCU] 482 Pipes, 16 installations 483Fourth Edition 1973-11-xx [QCU] 484 rewriting in C effected, 485 above 30 installations 486Fifth Edition 1974-06-xx [QCU] 487 above 50 installations 488Sixth Edition 1975-05-xx [QCU] 489 port to DEC Vax 490Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 491 first portable UNIX 492Eighth Edition 1985-02-xx [QCU] 493 VAX 11/750, VAX 11/780 [dmr] 494 descended from 4.1c BSD [dmr] 495 descended from 4.1 BSD [44B] 496 scooping-out and replacement of the character-device 497 and networking part by the streams mechanism 498 499Ninth Edition 1986-09-xx [QCU] 500Tenth Edition 1989-10-xx [QCU] 501 5021BSD late 1977 503 1978-03-09 [QCU] 504 PDP-11, Pascal, ex(1) 505 30 free copies of 1BSD sent out 506 35 tapes sold for 50 USD [QCU] 5072BSD mid 1978 [QCU] 1979-05-10 [TUHS] 508 75 2BSD tapes shipped 5092.79BSD 1980-04-xx [TUHS] 5102.8BSD 1981-07-xx [KSJ] 511 5122.8.1BSD 1982-01-xx [QCU] 513 set of performance improvements 5142.9BSD 1983-07-xx [KSJ] 5152.9.1BSD 1983-11-xx [TUHS] 5162.9BSD-Seismo 1985-08-xx [SMS] 5172.10BSD 1987-04-xx [KKK] 5182.10.1BSD 1989-01-xx [SMS] 5192.11BSD 1991-03-14 [SMS] 5202.11BSD rev #430 1999-12-13 [SMS] 521 52232V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5233BSD late 1979 [QCU] March 1980 [TUHS] 524 virtual memory, page replacement, 525 demand paging 5264.0BSD 1980-10-xx 5274.1BSD 1981-07-08 [DOC] 5284.1aBSD 1982-04-xx 529 alpha release, 100 sites, networking [44B] 5304.1bBSD internal release, fast filesystem [44B] 5314.1cBSD late 1982 532 beta release, IPC [44B] 5334.2BSD 1983-09-xx [QCU] 534 1983-08-03 [DOC] 5354.3BSD 1986-06-xx [QCU] 536 1986-04-05 [KB], [DOC] 5374.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5384.3BSD NET/1 1988-11-xx [QCU] 539 1989-01-01 [DOC] 5404.3BSD Reno 1990-06-29 [QCU], [DOC] 5414.3BSD NET/2 1991-06-28 [QCU], [DOC] 542 543BSD/386 ALPHA 1991-12-xx [BSDI] 544 first code released to people outside BSDI 545386BSD 0.0 1992-02-xx [DOC] 546BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 547BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 548386BSD 0.1 1992-07-28 [DOC] 5494.4BSD Alpha 1992-07-07 550BSD/386 0.9.3 1992-10-xx [BSDI] 551 first external gamma; G customers 552BSD/386 0.9.4 1992-12-xx [BSDI] 553 would have been 1.0 except for request 554 for preliminary injunction 555BSD/386 1.0 1993-03-xx [BSDI] 556 injunction denied; first official release 557NetBSD 0.8 1993-04-20 [NBD] 5584.4BSD 1993-06-01 [USE] 559NetBSD 0.9 1993-08-23 [NBD] 560FreeBSD 1.0 1993-11-01 [FBD] 561FreeBSD 1.0.2 1993-11-14 [FBD] 562 supersedes 1.0 13 days after release. 563BSD/386 1.1 1994-02-xx [BSDI] 5644.4BSD Lite 1994-03-01 [USE] 565FreeBSD 1.1 1994-05-07 [FBD] 566FreeBSD 1.1.5 1994-06-30 [FBD] 567FreeBSD 1.1.5.1 1994-07-05 [FBD] 568 supersedes 1.1.5 5 days after release. 569NetBSD 1.0 1994-10-26 [NBD] 570386BSD 1.0 1994-11-12 [USE] 571FreeBSD 2.0 1994-11-23 [FBD] 572BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 573FreeBSD 2.0.5 1995-06-10 [FBD] 574BSD/OS 2.0.1 1995-06-xx [BSDI] 5754.4BSD Lite Release 2 1995-06-xx [44B] 576 the true final distribution from the CSRG 577FreeBSD 2.1.0 1995-11-19 [FBD] 578NetBSD 1.1 1995-11-26 [NBD] 579BSD/OS 2.1 1996-01-xx [BSDI] 580FreeBSD 2.1.5 1996-07-14 [FBD] 581NetBSD 1.2 1996-10-04 [NBD] 582OpenBSD 2.0 1996-10-18 [OBD] 583FreeBSD 2.1.6 1996-11-16 [FBD] 584FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 585Rhapsody 1997-xx-xx 586FreeBSD 2.1.7 1997-02-20 [FBD] 587BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 588FreeBSD 2.2.0 1997-03-16 [FBD] 589FreeBSD 2.2.1 1997-03-25 [FBD] 590FreeBSD 2.2.2 1997-05-16 [FBD] 591NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 592OpenBSD 2.1 1997-06-01 [OBD] 593FreeBSD 2.2.5 1997-10-22 [FBD] 594OpenBSD 2.2 1997-12-01 [OBD] 595NetBSD 1.3 1998-01-04 [NBD] 596FreeBSD 2.2.6 1998-03-25 [FBD] 597NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 598BSD/OS 3.1 1998-03-xx [BSDI] 599OpenBSD 2.3 1998-05-19 [OBD] 600NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 601FreeBSD 2.2.7 1998-07-22 [FBD] 602BSD/OS 4.0 1998-08-xx [BSDI] 603 2-lock MP support, ELF executables 604FreeBSD 3.0 1998-10-16 [FBD] 605 FreeBSD-3.0 is a snapshot from -current, 606 while 3.1 and 3.2 are from 3.x-stable which 607 was branched quite some time after 3.0-release 608FreeBSD 2.2.8 1998-11-29 [FBD] 609OpenBSD 2.4 1998-12-01 [OBD] 610NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 611FreeBSD 3.1 1999-02-15 [FBD] 612BSD/OS 4.0.1 1999-03-xx [BSDI] 613NetBSD 1.4 1999-05-12 [NBD] 614FreeBSD 3.2 1999-05-17 [FBD] 615OpenBSD 2.5 1999-05-19 [OBD] 616NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 617FreeBSD 3.3 1999-09-17 [FBD] 618OpenBSD 2.6 1999-12-01 [OBD] 619FreeBSD 3.4 1999-12-20 [FBD] 620BSD/OS 4.1 1999-12-xx [BSDI] 621FreeBSD 4.0 2000-03-13 [FBD] 622NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 623OpenBSD 2.7 2000-06-15 [OBD] 624FreeBSD 3.5 2000-06-24 [FBD] 625FreeBSD 4.1 2000-07-27 [FBD] 626FreeBSD 3.5.1 2000-07-28 [FBD] 627FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 628FreeBSD 4.2 2000-11-21 [FBD] 629NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 630BSD/OS 4.2 2000-11-29 [BSDI] 631OpenBSD 2.8 2000-12-01 [OBD] 632NetBSD 1.5 2000-12-06 [NBD] 633Mac OS X 10.0 2001-03-24 [APL] 634FreeBSD 4.3 2001-04-20 [FBD] 635OpenBSD 2.9 2001-06-01 [OBD] 636NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 637NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 638FreeBSD 4.4 2001-09-18 [FBD] 639Mac OS X 10.1 2001-09-29 [APL] 640OpenBSD 3.0 2001-12-01 [OBD] 641FreeBSD 4.5 2002-01-29 [FBD] 642BSD/OS 4.3 2002-03-14 [WRS] 643OpenBSD 3.1 2002-05-19 [OBD] 644FreeBSD 4.6 2002-06-15 [FBD] 645NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 646FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 647Mac OS X 10.2 2002-08-23 [APL] 648NetBSD 1.6 2002-09-14 [NBD] 649FreeBSD 4.7 2002-10-08 [FBD] 650OpenBSD 3.2 2002-11-01 [OBD] 651FreeBSD 5.0 2003-01-17 [FBD] 652 FreeBSD 5.0 is a separate branch off of 653 -current, similar to 3.0. 654FreeBSD 4.8 2003-04-03 [FBD] 655NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 656OpenBSD 3.3 2003-05-01 [OBD] 657BSD/OS 5.0 2003-05-?? [WRS] 658FreeBSD 5.1 2003-06-09 [FBD] 659Mac OS X 10.3 2003-10-24 [APL] 660FreeBSD 4.9 2003-10-28 [FBD] 661BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 662OpenBSD 3.4 2003-11-01 [OBD] 663FreeBSD 5.2 2004-01-12 [FBD] 664FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 665NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 666OpenBSD 3.5 2004-04-01 [OBD] 667FreeBSD 4.10 2004-05-27 [FBD] 668DragonFly 1.0 2004-07-12 [DFB] 669OpenBSD 3.6 2004-10-29 [OBD] 670FreeBSD 5.3 2004-11-06 [FBD] 671NetBSD 2.0 2004-12-09 [NBD] 672FreeBSD 4.11 2005-01-25 [FBD] 673DragonFly 1.2.0 2005-04-08 [DFB] 674NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 675Mac OS X 10.4 2005-04-29 [APL] 676FreeBSD 5.4 2005-05-09 [FBD] 677OpenBSD 3.7 2005-05-19 [OBD] 678NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 679OpenBSD 3.8 2005-11-01 [OBD] 680FreeBSD 6.0 2005-11-01 [FBD] 681NetBSD 2.1 2005-11-02 [NBD] 682NetBSD 3.0 2005-12-23 [NBD] 683DragonFly 1.4.0 2006-01-08 [DFB] 684FreeBSD 2.2.9 2006-04-01 [FBD] 685OpenBSD 3.9 2006-05-01 [OBD] 686FreeBSD 6.1 2006-05-08 [FBD] 687FreeBSD 5.5 2006-05-25 [FBD] 688NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 689DragonFly 1.6.0 2006-07-24 [DFB] 690OpenBSD 4.0 2006-11-01 [OBD] 691NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 692NetBSD 3.1 2006-11-04 [NBD] 693FreeBSD 6.2 2007-01-15 [FBD] 694DragonFly 1.8.0 2007-01-30 [DFB] 695OpenBSD 4.1 2007-05-01 [OBD] 696DragonFly 1.10.0 2007-08-06 [DFB] 697Mac OS X 10.5 2007-10-26 [APL] 698OpenBSD 4.2 2007-11-01 [OBD] 699NetBSD 4.0 2007-12-19 [NBD] 700FreeBSD 6.3 2008-01-18 [FBD] 701DragonFly 1.12.0 2008-02-26 [DFB] 702FreeBSD 7.0 2008-02-27 [FBD] 703OpenBSD 4.3 2008-05-01 [OBD] 704DragonFly 2.0.0 2008-07-21 [DFB] 705OpenBSD 4.4 2008-11-01 [OBD] 706FreeBSD 6.4 2008-11-28 [FBD] 707FreeBSD 7.1 2009-01-04 [FBD] 708DragonFly 2.2.0 2009-02-17 [DFB] 709NetBSD 5.0 2009-04-29 [NBD] 710OpenBSD 4.5 2009-05-01 [OBD] 711FreeBSD 7.2 2009-05-04 [FBD] 712Mac OS X 10.6 2009-06-08 [APL] 713NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 714DragonFly 2.4.0 2009-09-16 [DFB] 715OpenBSD 4.6 2009-10-18 [OBD] 716FreeBSD 8.0 2009-11-26 [FBD] 717NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 718FreeBSD 7.3 2010-03-23 [FBD] 719DragonFly 2.6.0 2010-03-28 [DFB] 720OpenBSD 4.7 2010-05-19 [OBD] 721FreeBSD 8.1 2010-07-24 [FBD] 722DragonFly 2.8.2 2010-10-30 [DFB] 723OpenBSD 4.8 2010-11-01 [OBD] 724NetBSD 5.1 2010-11-19 [NBD] 725FreeBSD 7.4 2011-02-24 [FBD] 726FreeBSD 8.2 2011-02-24 [FBD] 727DragonFly 2.10.1 2011-04-26 [DFB] 728OpenBSD 4.9 2011-05-01 [OBD] 729Mac OS X 10.7 2011-07-20 [APL] 730OpenBSD 5.0 2011-11-01 [OBD] 731FreeBSD 9.0 2012-01-12 [FBD] 732NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 733DragonFly 3.0.1 2012-02-21 [DFB] 734FreeBSD 8.3 2012-04-18 [FBD] 735OpenBSD 5.1 2012-05-01 [OBD] 736Mac OS X 10.8 2012-07-25 [APL] 737NetBSD 6.0 2012-10-17 [NBD] 738OpenBSD 5.2 2012-11-01 [OBD] 739DragonFly 3.2.1 2012-11-02 [DFB] 740NetBSD 5.2 2012-12-03 [NBD] 741NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 742FreeBSD 9.1 2012-12-30 [FBD] 743DragonFly 3.4.1 2013-04-29 [DFB] 744OpenBSD 5.3 2013-05-01 [OBD] 745NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 746NetBSD 6.1 2013-05-18 [NBD] 747FreeBSD 8.4 2013-06-07 [FBD] 748NetBSD 6.1.1 2013-08-22 [NBD] 749NetBSD 5.1.3 2013-09-29 [NBD] 750NetBSD 5.2.1 2013-09-29 [NBD] 751FreeBSD 9.2 2013-09-30 [FBD] 752NetBSD 6.0.3 2013-09-30 [NBD] 753NetBSD 6.1.2 2013-09-30 [NBD] 754Mac OS X 10.9 2013-10-22 [APL] 755OpenBSD 5.4 2013-11-01 [OBD] 756DragonFly 3.6.0 2013-11-25 [DFB] 757FreeBSD 10.0 2014-01-20 [FBD] 758NetBSD 5.1.4 2014-01-25 [NBD] 759NetBSD 5.2.2 2014-01-25 [NBD] 760NetBSD 6.0.4 2014-01-25 [NBD] 761NetBSD 6.1.3 2014-01-25 [NBD] 762DragonFly 3.6.1 2014-02-22 [DFB] 763DragonFly 3.6.2 2014-04-10 [DFB] 764NetBSD 6.0.5 2014-04-12 [NBD] 765NetBSD 6.1.4 2014-04-12 [NBD] 766OpenBSD 5.5 2014-05-01 [OBD] 767DragonFly 3.8.0 2014-06-04 [DFB] 768DragonFly 3.8.1 2014-06-16 [DFB] 769DragonFly 3.6.3 2014-06-17 [DFB] 770FreeBSD 9.3 2014-07-05 [FBD] 771DragonFly 3.8.2 2014-08-08 [DFB] 772NetBSD 6.0.6 2014-09-22 [NBD] 773NetBSD 6.1.5 2014-09-22 [NBD] 774Mac OS X 10.10 2014-10-16 [APL] 775OpenBSD 5.6 2014-11-01 [OBD] 776FreeBSD 10.1 2014-11-14 [FBD] 777DragonFly 4.0.1 2014-11-25 [DFB] 778DragonFly 4.0.2 2015-01-07 [DFB] 779DragonFly 4.0.3 2015-01-21 [DFB] 780DragonFly 4.0.4 2015-03-09 [DFB] 781DragonFly 4.0.5 2015-03-23 [DFB] 782OpenBSD 5.7 2015-05-01 [OBD] 783DragonFly 4.2.0 2015-06-29 [DFB] 784FreeBSD 10.2 2015-08-13 [FBD] 785NetBSD 7.0 2015-09-25 [NBD] 786OS X 10.11 2015-09-30 [APL] 787OpenBSD 5.8 2015-10-18 [OBD] 788DragonFly 4.4.1 2015-12-07 [DFB] 789OpenBSD 5.9 2016-03-29 [OBD] 790FreeBSD 10.3 2016-04-04 [FBD] 791NetBSD 7.0.1 2016-05-22 [NBD] 792DragonFly 4.6.0 2016-08-02 [DFB] 793OpenBSD 6.0 2016-09-01 [OBD] 794macOS 10.12 2016-09-20 [APL] 795FreeBSD 11.0 2016-10-10 [FBD] 796NetBSD 7.0.2 2016-10-21 [NBD] 797NetBSD 7.1 2017-03-11 [NBD] 798DragonFly 4.8.0 2017-03-27 [DFB] 799OpenBSD 6.1 2017-04-11 [OBD] 800FreeBSD 11.1 2017-07-26 [FBD] 801macOS 10.13 2017-09-25 [APL] 802FreeBSD 10.4 2017-10-03 [FBD] 803OpenBSD 6.2 2017-10-09 [OBD] 804DragonFly 5.0.0 2017-10-16 [DFB] 805DragonFly 5.0.1 2017-11-06 [DFB] 806DragonFly 5.0.2 2017-12-04 [DFB] 807NetBSD 7.1.1 2017-12-22 [NBD] 808NetBSD 7.1.2 2018-03-15 [NBD] 809OpenBSD 6.3 2018-04-02 [OBD] 810DragonFly 5.2.0 2018-04-10 [DFB] 811DragonFly 5.2.1 2018-05-20 [DFB] 812DragonFly 5.2.2 2018-06-18 [DFB] 813FreeBSD 11.2 2018-06-27 [FBD] 814NetBSD 8.0 2018-07-17 [NBD] 815NetBSD 7.2 2018-08-29 [NBD] 816macOS 10.14 2018-09-24 [APL] 817OpenBSD 6.4 2018-10-18 [OBD] 818DragonFly 5.4.0 2018-12-03 [DFB] 819FreeBSD 12.0 2018-12-11 [FBD] 820DragonFly 5.4.1 2018-12-24 [DFB] 821OpenBSD 6.5 2019-05-01 [OBD] 822NetBSD 8.1 2019-06-04 [NBD] 823DragonFly 5.6 2019-06-17 [DFB] 824DragonFly 5.6.1 2019-06-19 [DFB] 825FreeBSD 11.3 2019-07-09 [FBD] 826DragonFly 5.6.2 2019-08-11 [DFB] 827OpenBSD 6.6 2019-10-17 [OBD] 828macOS 10.15 2019-10-07 [APL] 829macOS 10.15.1 2019-10-29 [APL] (security/critical release) 830FreeBSD 12.1 2019-11-04 [FBD] 831NetBSD 9.0 2020-02-14 [NBD] 832DragonFly 5.8 2020-03-03 [DFB] 833DragonFly 5.6.3 2020-03-11 [DFB] 834NetBSD 8.2 2020-03-31 [NBD] 835DragonFly 5.8.1 2020-05-06 [DFB] 836OpenBSD 6.7 2020-05-19 [OBD] 837FreeBSD 11.4 2020-06-16 [FBD] 838DragonFly 5.8.2 2020-09-23 [DFB] 839DragonFly 5.8.3 2020-09-24 [DFB] 840NetBSD 9.1 2020-10-18 [NBD] 841OpenBSD 6.8 2020-10-18 [OBD] 842FreeBSD 12.2 2020-10-27 [FBD] 843macOS 11 2020-11-12 [APL] 844FreeBSD 13.0 2021-04-13 [FBD] 845OpenBSD 6.9 2021-05-01 [OBD] 846DragonFly 6.0 2021-05-08 [DFB] 847NetBSD 9.2 2021-05-12 [NBD] 848OpenBSD 7.0 2021-10-14 [OBD] 849macOS 12 2021-10-25 [APL] 850FreeBSD 12.3 2021-12-01 [FBD] 851DragonFly 6.2.1 2022-01-09 [DFB] 852OpenBSD 7.1 2022-04-21 [OBD] 853FreeBSD 13.1 2022-05-17 [FBD] 854DragonFly 6.2.2 2022-06-09 [DFB] 855NetBSD 9.3 2022-08-04 [NBD] 856NetBSD 10.0 2024-03-28 [NBD] 857 858Bibliography 859------------------------ 860 861Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 862Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 863System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 864 865Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 866Company, Inc., 1994. ISBN 0-201-54777-5 867 868McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 869Quarterman. The Design and Implementation of the 4.4BSD Operating 870System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 871 872McKusick, Marshall Kirk, George Neville-Neil. The Design and 873Implementation of the FreeBSD Operating System. 874Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 875 876McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 877Design and Implementation of the FreeBSD Operating System, 2nd Edition. 878Pearson Education, Inc., 2014. ISBN 0-321-96897-2 879 880Doug McIlroy. Research Unix Reader. 881 882Michael G. Brown. The Role of BSD in the Development of Unix. 883Presented to the Tasmanian Unix Special Interest Group of the 884Australian Computer Society, Hobart, August 1993. 885 886Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 887URL: http://www.byte.com/art/9410/sec8/art3.htm 888 889Andreas Klemm, Lars Köller. If you're going to San Francisco ... 890Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 891 892BSD Release Announcements collection. 893URL: https://www.FreeBSD.org/releases/ 894 895BSD Hypertext Man Pages 896URL: https://www.FreeBSD.org/cgi/man.cgi 897 898UNIX history graphing project 899URL: http://minnie.tuhs.org/Unix_History/index.html 900 901UNIX history 902URL: http://www.levenez.com/unix/ 903 904James Howard: The BSD Family Tree 905URL: http://ezine.daemonnews.org/200104/bsd_family.html 906("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 907 908 909Acknowledgments 910--------------- 911 912Josh Gilliam for suggestions, bug fixes, and finding very old 913original BSD announcements from Usenet or tapes. 914 915Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 916 917-- 918Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 919URL: https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 920 921$FreeBSD: head/share/misc/bsd-family-tree 361673 2020-05-31 21:38:33Z imp $ 922$NetBSD: bsd-family-tree,v 1.84 2024/03/30 19:34:46 martin Exp $ 923