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 | | | OpenBSD 7.2 | 442 | | | | | 443FreeBSD 14 -current | NetBSD -current OpenBSD -current DragonFly -current 444 | | | | | 445 v v v v v 446 447Time 448---------------- 449 450Time tolerance +/- 6 months, depending on which book/article you read; if it 451was the announcement in Usenet or if it was available as tape. 452 453[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 454 and John Quarterman. The Design and Implementation of 455 the 4.4BSD Operating System. 456[APL] Apple website [https://www.apple.com/macosx/] 457[BSDI] Berkeley Software Design, Inc. 458[DFB] DragonFlyBSD Project, The. 459[DOC] README, COPYRIGHT on tape. 460[FBD] FreeBSD Project, The. 461[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 462 Volume 11, Info 4, April, 1987. 463[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 464 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 465[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 466 Changes in the Kernel in 2.9BSD. Second Berkeley Software 467 Distribution UNIX Version 2.9, July, 1983. 468[NBD] NetBSD Project, The. 469[OBD] OpenBSD Project, The. 470[QCU] Salus, Peter H. A quarter century of UNIX. 471[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 472[TUHS] The Unix Historical Society. https://minnie.tuhs.org/Unix_History/. 473[USE] Usenet announcement. 474[WRS] Wind River Systems, Inc. 475[dmr] Dennis Ritchie, via E-Mail 476 477Multics 1965 478UNIX Summer 1969 479 DEC PDP-7 480First Edition 1971-11-03 [QCU] 481 DEC PDP-11/20, Assembler 482Second Edition 1972-06-12 [QCU] 483 10 UNIX installations 484Third Edition 1973-02-xx [QCU] 485 Pipes, 16 installations 486Fourth Edition 1973-11-xx [QCU] 487 rewriting in C effected, 488 above 30 installations 489Fifth Edition 1974-06-xx [QCU] 490 above 50 installations 491Sixth Edition 1975-05-xx [QCU] 492 port to DEC Vax 493Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 494 first portable UNIX 495Eighth Edition 1985-02-xx [QCU] 496 VAX 11/750, VAX 11/780 [dmr] 497 descended from 4.1c BSD [dmr] 498 descended from 4.1 BSD [44B] 499 scooping-out and replacement of the character-device 500 and networking part by the streams mechanism 501 502Ninth Edition 1986-09-xx [QCU] 503Tenth Edition 1989-10-xx [QCU] 504 5051BSD late 1977 506 1978-01-16 [DOC] 507 1978-03-09 [QCU] 508 PDP-11, Pascal, ex(1) 509 30 free copies of 1BSD sent out 510 35 tapes sold for 50 USD [QCU] 5112BSD mid 1978 [QCU] 1979-05-10 [TUHS] 512 75 2BSD tapes shipped 5132.79BSD 1980-04-xx [TUHS] 5142.8BSD 1981-07-xx [KSJ] 515 First 2BSD with bootable V7 kernel plus 516 community fixes. 5172.8.1BSD 1982-01-xx [QCU] 518 set of performance improvements 5192.9BSD 1983-07-xx [KSJ] 5202.9.1BSD 1983-11-xx [TUHS] 5212.9BSD-Seismo 1985-08-xx [SMS] 5222.10BSD 1987-04-xx [KKK] 5232.10.1BSD 1989-01-xx [SMS] 5242.11BSD 1991-03-14 [SMS] 5252.11BSD rev #430 1999-12-13 [SMS] 526 52732V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5283BSD late 1979 [QCU] March 1980 [TUHS] 529 virtual memory, page replacement, 530 demand paging 5314.0BSD 1980-10-xx 5324.1BSD 1981-07-08 [DOC] 5334.1aBSD 1982-04-xx 534 alpha release, 100 sites, networking [44B] 5354.1bBSD internal release, fast filesystem [44B] 5364.1cBSD late 1982 537 beta release, IPC [44B] 5384.2BSD 1983-09-xx [QCU] 539 1983-08-03 [DOC] 5404.3BSD 1986-06-xx [QCU] 541 1986-04-05 [KB], [DOC] 5424.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5434.3BSD NET/1 1988-11-xx [QCU] 544 1989-01-01 [DOC] 5454.3BSD Reno 1990-06-29 [QCU], [DOC] 5464.3BSD NET/2 1991-06-28 [QCU], [DOC] 547 548BSD/386 ALPHA 1991-12-xx [BSDI] 549 first code released to people outside BSDI 550386BSD 0.0 1992-02-xx [DOC] 551BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 552BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 553386BSD 0.1 1992-07-28 [DOC] 5544.4BSD Alpha 1992-07-07 555BSD/386 0.9.3 1992-10-xx [BSDI] 556 first external gamma; G customers 557BSD/386 0.9.4 1992-12-xx [BSDI] 558 would have been 1.0 except for request 559 for preliminary injunction 560BSD/386 1.0 1993-03-xx [BSDI] 561 injunction denied; first official release 562NetBSD 0.8 1993-04-20 [NBD] 5634.4BSD 1993-06-01 [USE] 564NetBSD 0.9 1993-08-23 [NBD] 565FreeBSD 1.0 1993-11-01 [FBD] 566FreeBSD 1.0.2 1993-11-14 [FBD] 567 supersedes 1.0 13 days after release. 568BSD/386 1.1 1994-02-xx [BSDI] 5694.4BSD Lite 1994-03-01 [USE] 570FreeBSD 1.1 1994-05-07 [FBD] 571FreeBSD 1.1.5 1994-06-30 [FBD] 572FreeBSD 1.1.5.1 1994-07-05 [FBD] 573 supersedes 1.1.5 5 days after release. 574NetBSD 1.0 1994-10-26 [NBD] 575386BSD 1.0 1994-11-12 [USE] 576FreeBSD 2.0 1994-11-23 [FBD] 577BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 578FreeBSD 2.0.5 1995-06-10 [FBD] 579BSD/OS 2.0.1 1995-06-xx [BSDI] 5804.4BSD Lite Release 2 1995-06-xx [44B] 581 the true final distribution from the CSRG 582FreeBSD 2.1.0 1995-11-19 [FBD] 583NetBSD 1.1 1995-11-26 [NBD] 584BSD/OS 2.1 1996-01-xx [BSDI] 585FreeBSD 2.1.5 1996-07-14 [FBD] 586NetBSD 1.2 1996-10-04 [NBD] 587OpenBSD 2.0 1996-10-18 [OBD] 588FreeBSD 2.1.6 1996-11-16 [FBD] 589FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 590Rhapsody 1997-xx-xx 591FreeBSD 2.1.7 1997-02-20 [FBD] 592BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 593FreeBSD 2.2.0 1997-03-16 [FBD] 594FreeBSD 2.2.1 1997-03-25 [FBD] 595FreeBSD 2.2.2 1997-05-16 [FBD] 596NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 597OpenBSD 2.1 1997-06-01 [OBD] 598FreeBSD 2.2.5 1997-10-22 [FBD] 599OpenBSD 2.2 1997-12-01 [OBD] 600NetBSD 1.3 1998-01-04 [NBD] 601FreeBSD 2.2.6 1998-03-25 [FBD] 602NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 603BSD/OS 3.1 1998-03-xx [BSDI] 604OpenBSD 2.3 1998-05-19 [OBD] 605NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 606FreeBSD 2.2.7 1998-07-22 [FBD] 607BSD/OS 4.0 1998-08-xx [BSDI] 608 2-lock MP support, ELF executables 609FreeBSD 3.0 1998-10-16 [FBD] 610 FreeBSD-3.0 is a snapshot from -current, 611 while 3.1 and 3.2 are from 3.x-stable which 612 was branched quite some time after 3.0-release 613FreeBSD 2.2.8 1998-11-29 [FBD] 614OpenBSD 2.4 1998-12-01 [OBD] 615NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 616FreeBSD 3.1 1999-02-15 [FBD] 617BSD/OS 4.0.1 1999-03-xx [BSDI] 618NetBSD 1.4 1999-05-12 [NBD] 619FreeBSD 3.2 1999-05-17 [FBD] 620OpenBSD 2.5 1999-05-19 [OBD] 621NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 622FreeBSD 3.3 1999-09-17 [FBD] 623OpenBSD 2.6 1999-12-01 [OBD] 624FreeBSD 3.4 1999-12-20 [FBD] 625BSD/OS 4.1 1999-12-xx [BSDI] 626FreeBSD 4.0 2000-03-13 [FBD] 627NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 628OpenBSD 2.7 2000-06-15 [OBD] 629FreeBSD 3.5 2000-06-24 [FBD] 630FreeBSD 4.1 2000-07-27 [FBD] 631FreeBSD 3.5.1 2000-07-28 [FBD] 632FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 633FreeBSD 4.2 2000-11-21 [FBD] 634NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 635BSD/OS 4.2 2000-11-29 [BSDI] 636OpenBSD 2.8 2000-12-01 [OBD] 637NetBSD 1.5 2000-12-06 [NBD] 638Mac OS X 10.0 2001-03-24 [APL] 639FreeBSD 4.3 2001-04-20 [FBD] 640OpenBSD 2.9 2001-06-01 [OBD] 641NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 642NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 643FreeBSD 4.4 2001-09-18 [FBD] 644Mac OS X 10.1 2001-09-29 [APL] 645OpenBSD 3.0 2001-12-01 [OBD] 646FreeBSD 4.5 2002-01-29 [FBD] 647BSD/OS 4.3 2002-03-14 [WRS] 648OpenBSD 3.1 2002-05-19 [OBD] 649FreeBSD 4.6 2002-06-15 [FBD] 650NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 651FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 652Mac OS X 10.2 2002-08-23 [APL] 653NetBSD 1.6 2002-09-14 [NBD] 654FreeBSD 4.7 2002-10-08 [FBD] 655OpenBSD 3.2 2002-11-01 [OBD] 656FreeBSD 5.0 2003-01-17 [FBD] 657 FreeBSD 5.0 is a separate branch off of 658 -current, similar to 3.0. 659FreeBSD 4.8 2003-04-03 [FBD] 660NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 661OpenBSD 3.3 2003-05-01 [OBD] 662BSD/OS 5.0 2003-05-?? [WRS] 663FreeBSD 5.1 2003-06-09 [FBD] 664Mac OS X 10.3 2003-10-24 [APL] 665FreeBSD 4.9 2003-10-28 [FBD] 666BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 667OpenBSD 3.4 2003-11-01 [OBD] 668FreeBSD 5.2 2004-01-12 [FBD] 669FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 670NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 671OpenBSD 3.5 2004-04-01 [OBD] 672FreeBSD 4.10 2004-05-27 [FBD] 673DragonFly 1.0 2004-07-12 [DFB] 674OpenBSD 3.6 2004-10-29 [OBD] 675FreeBSD 5.3 2004-11-06 [FBD] 676NetBSD 2.0 2004-12-09 [NBD] 677FreeBSD 4.11 2005-01-25 [FBD] 678DragonFly 1.2.0 2005-04-08 [DFB] 679NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 680Mac OS X 10.4 2005-04-29 [APL] 681FreeBSD 5.4 2005-05-09 [FBD] 682OpenBSD 3.7 2005-05-19 [OBD] 683NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 684OpenBSD 3.8 2005-11-01 [OBD] 685FreeBSD 6.0 2005-11-01 [FBD] 686NetBSD 2.1 2005-11-02 [NBD] 687NetBSD 3.0 2005-12-23 [NBD] 688DragonFly 1.4.0 2006-01-08 [DFB] 689FreeBSD 2.2.9 2006-04-01 [FBD] 690OpenBSD 3.9 2006-05-01 [OBD] 691FreeBSD 6.1 2006-05-08 [FBD] 692FreeBSD 5.5 2006-05-25 [FBD] 693NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 694DragonFly 1.6.0 2006-07-24 [DFB] 695OpenBSD 4.0 2006-11-01 [OBD] 696NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 697NetBSD 3.1 2006-11-04 [NBD] 698FreeBSD 6.2 2007-01-15 [FBD] 699DragonFly 1.8.0 2007-01-30 [DFB] 700OpenBSD 4.1 2007-05-01 [OBD] 701DragonFly 1.10.0 2007-08-06 [DFB] 702Mac OS X 10.5 2007-10-26 [APL] 703OpenBSD 4.2 2007-11-01 [OBD] 704NetBSD 4.0 2007-12-19 [NBD] 705FreeBSD 6.3 2008-01-18 [FBD] 706DragonFly 1.12.0 2008-02-26 [DFB] 707FreeBSD 7.0 2008-02-27 [FBD] 708OpenBSD 4.3 2008-05-01 [OBD] 709DragonFly 2.0.0 2008-07-21 [DFB] 710OpenBSD 4.4 2008-11-01 [OBD] 711FreeBSD 6.4 2008-11-28 [FBD] 712FreeBSD 7.1 2009-01-04 [FBD] 713DragonFly 2.2.0 2009-02-17 [DFB] 714NetBSD 5.0 2009-04-29 [NBD] 715OpenBSD 4.5 2009-05-01 [OBD] 716FreeBSD 7.2 2009-05-04 [FBD] 717Mac OS X 10.6 2009-06-08 [APL] 718NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 719DragonFly 2.4.0 2009-09-16 [DFB] 720OpenBSD 4.6 2009-10-18 [OBD] 721FreeBSD 8.0 2009-11-26 [FBD] 722NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 723FreeBSD 7.3 2010-03-23 [FBD] 724DragonFly 2.6.0 2010-03-28 [DFB] 725OpenBSD 4.7 2010-05-19 [OBD] 726FreeBSD 8.1 2010-07-24 [FBD] 727DragonFly 2.8.2 2010-10-30 [DFB] 728OpenBSD 4.8 2010-11-01 [OBD] 729NetBSD 5.1 2010-11-19 [NBD] 730FreeBSD 7.4 2011-02-24 [FBD] 731FreeBSD 8.2 2011-02-24 [FBD] 732DragonFly 2.10.1 2011-04-26 [DFB] 733OpenBSD 4.9 2011-05-01 [OBD] 734Mac OS X 10.7 2011-07-20 [APL] 735OpenBSD 5.0 2011-11-01 [OBD] 736FreeBSD 9.0 2012-01-12 [FBD] 737NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 738DragonFly 3.0.1 2012-02-21 [DFB] 739FreeBSD 8.3 2012-04-18 [FBD] 740OpenBSD 5.1 2012-05-01 [OBD] 741Mac OS X 10.8 2012-07-25 [APL] 742NetBSD 6.0 2012-10-17 [NBD] 743OpenBSD 5.2 2012-11-01 [OBD] 744DragonFly 3.2.1 2012-11-02 [DFB] 745NetBSD 5.2 2012-12-03 [NBD] 746NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 747FreeBSD 9.1 2012-12-30 [FBD] 748DragonFly 3.4.1 2013-04-29 [DFB] 749OpenBSD 5.3 2013-05-01 [OBD] 750NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 751NetBSD 6.1 2013-05-18 [NBD] 752FreeBSD 8.4 2013-06-07 [FBD] 753NetBSD 6.1.1 2013-08-22 [NBD] 754NetBSD 5.1.3 2013-09-29 [NBD] 755NetBSD 5.2.1 2013-09-29 [NBD] 756FreeBSD 9.2 2013-09-30 [FBD] 757NetBSD 6.0.3 2013-09-30 [NBD] 758NetBSD 6.1.2 2013-09-30 [NBD] 759Mac OS X 10.9 2013-10-22 [APL] 760OpenBSD 5.4 2013-11-01 [OBD] 761DragonFly 3.6.0 2013-11-25 [DFB] 762FreeBSD 10.0 2014-01-20 [FBD] 763NetBSD 5.1.4 2014-01-25 [NBD] 764NetBSD 5.2.2 2014-01-25 [NBD] 765NetBSD 6.0.4 2014-01-25 [NBD] 766NetBSD 6.1.3 2014-01-25 [NBD] 767DragonFly 3.6.1 2014-02-22 [DFB] 768DragonFly 3.6.2 2014-04-10 [DFB] 769NetBSD 6.0.5 2014-04-12 [NBD] 770NetBSD 6.1.4 2014-04-12 [NBD] 771OpenBSD 5.5 2014-05-01 [OBD] 772DragonFly 3.8.0 2014-06-04 [DFB] 773DragonFly 3.8.1 2014-06-16 [DFB] 774DragonFly 3.6.3 2014-06-17 [DFB] 775FreeBSD 9.3 2014-07-05 [FBD] 776DragonFly 3.8.2 2014-08-08 [DFB] 777NetBSD 6.0.6 2014-09-22 [NBD] 778NetBSD 6.1.5 2014-09-22 [NBD] 779Mac OS X 10.10 2014-10-16 [APL] 780OpenBSD 5.6 2014-11-01 [OBD] 781FreeBSD 10.1 2014-11-14 [FBD] 782DragonFly 4.0.1 2014-11-25 [DFB] 783DragonFly 4.0.2 2015-01-07 [DFB] 784DragonFly 4.0.3 2015-01-21 [DFB] 785DragonFly 4.0.4 2015-03-09 [DFB] 786DragonFly 4.0.5 2015-03-23 [DFB] 787OpenBSD 5.7 2015-05-01 [OBD] 788DragonFly 4.2.0 2015-06-29 [DFB] 789FreeBSD 10.2 2015-08-13 [FBD] 790NetBSD 7.0 2015-09-25 [NBD] 791OS X 10.11 2015-09-30 [APL] 792OpenBSD 5.8 2015-10-18 [OBD] 793DragonFly 4.4.1 2015-12-07 [DFB] 794OpenBSD 5.9 2016-03-29 [OBD] 795FreeBSD 10.3 2016-04-04 [FBD] 796NetBSD 7.0.1 2016-05-22 [NBD] 797DragonFly 4.6.0 2016-08-02 [DFB] 798OpenBSD 6.0 2016-09-01 [OBD] 799macOS 10.12 2016-09-20 [APL] 800FreeBSD 11.0 2016-10-10 [FBD] 801NetBSD 7.0.2 2016-10-21 [NBD] 802NetBSD 7.1 2017-03-11 [NBD] 803DragonFly 4.8.0 2017-03-27 [DFB] 804OpenBSD 6.1 2017-04-11 [OBD] 805FreeBSD 11.1 2017-07-26 [FBD] 806macOS 10.13 2017-09-25 [APL] 807FreeBSD 10.4 2017-10-03 [FBD] 808OpenBSD 6.2 2017-10-09 [OBD] 809DragonFly 5.0.0 2017-10-16 [DFB] 810DragonFly 5.0.1 2017-11-06 [DFB] 811DragonFly 5.0.2 2017-12-04 [DFB] 812NetBSD 7.1.1 2017-12-22 [NBD] 813NetBSD 7.1.2 2018-03-15 [NBD] 814OpenBSD 6.3 2018-04-02 [OBD] 815DragonFly 5.2.0 2018-04-10 [DFB] 816DragonFly 5.2.1 2018-05-20 [DFB] 817DragonFly 5.2.2 2018-06-18 [DFB] 818FreeBSD 11.2 2018-06-27 [FBD] 819NetBSD 8.0 2018-07-17 [NBD] 820NetBSD 7.2 2018-08-29 [NBD] 821macOS 10.14 2018-09-24 [APL] 822OpenBSD 6.4 2018-10-18 [OBD] 823DragonFly 5.4.0 2018-12-03 [DFB] 824FreeBSD 12.0 2018-12-11 [FBD] 825DragonFly 5.4.1 2018-12-24 [DFB] 826OpenBSD 6.5 2019-05-01 [OBD] 827NetBSD 8.1 2019-06-04 [NBD] 828DragonFly 5.6 2019-06-17 [DFB] 829DragonFly 5.6.1 2019-06-19 [DFB] 830FreeBSD 11.3 2019-07-09 [FBD] 831DragonFly 5.6.2 2019-08-11 [DFB] 832OpenBSD 6.6 2019-10-17 [OBD] 833macOS 10.15 2019-10-07 [APL] 834macOS 10.15.1 2019-10-29 [APL] (security/critical release) 835FreeBSD 12.1 2019-11-04 [FBD] 836NetBSD 9.0 2020-02-14 [NBD] 837DragonFly 5.8 2020-03-03 [DFB] 838DragonFly 5.6.3 2020-03-11 [DFB] 839NetBSD 8.2 2020-03-31 [NBD] 840DragonFly 5.8.1 2020-05-06 [DFB] 841OpenBSD 6.7 2020-05-19 [OBD] 842FreeBSD 11.4 2020-06-16 [FBD] 843DragonFly 5.8.2 2020-09-23 [DFB] 844DragonFly 5.8.3 2020-09-24 [DFB] 845OpenBSD 6.8 2020-10-18 [OBD] 846NetBSD 9.1 2020-10-18 [NBD] 847FreeBSD 12.2 2020-10-27 [FBD] 848macOS 11 2020-11-19 [APL] 849FreeBSD 13.0 2021-04-13 [FBD] 850OpenBSD 6.9 2021-05-01 [OBD] 851DragonFly 6.0 2021-05-08 [DFB] 852NetBSD 9.2 2021-05-12 [NBD] 853DragonFly 6.0.1 2021-10-12 [DFB] 854OpenBSD 7.0 2021-10-14 [OBD] 855macOS 12 2021-10-25 [APL] 856FreeBSD 12.3 2021-12-01 [FBD] 857DragonFly 6.2.1 2022-01-09 [DFB] 858OpenBSD 7.1 2022-04-21 [OBD] 859FreeBSD 13.1 2022-05-17 [FBD] 860DragonFly 6.2.2 2022-06-09 [DFB] 861NetBSD 9.3 2022-08-04 [NBD] 862OpenBSD 7.2 2022-10-20 [OBD] 863 864Bibliography 865------------------------ 866 867Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 868Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 869System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 870 871Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 872Company, Inc., 1994. ISBN 0-201-54777-5 873 874McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 875Quarterman. The Design and Implementation of the 4.4BSD Operating 876System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 877 878McKusick, Marshall Kirk, George Neville-Neil. The Design and 879Implementation of the FreeBSD Operating System. 880Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 881 882McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 883Design and Implementation of the FreeBSD Operating System, 2nd Edition. 884Pearson Education, Inc., 2014. ISBN 0-321-96897-2 885 886Doug McIlroy. Research Unix Reader. 887 888Michael G. Brown. The Role of BSD in the Development of Unix. 889Presented to the Tasmanian Unix Special Interest Group of the 890Australian Computer Society, Hobart, August 1993. 891 892Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 893URL: https://web.archive.org/web/20081230094857/http://www.byte.com/art/9410/sec8/art3.htm 894 895Andreas Klemm, Lars Köller. If you're going to San Francisco ... 896Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 897 898BSD Release Announcements collection. 899URL: https://www.FreeBSD.org/releases/ 900 901BSD Hypertext Man Pages 902URL: https://www.FreeBSD.org/cgi/man.cgi 903 904UNIX history graphing project 905URL: https://minnie.tuhs.org/Unix_History/index.html 906 907UNIX history 908URL: https://www.levenez.com/unix/ 909 910James Howard: The BSD Family Tree 911URL: https://web.archive.org/web/20090427195917/http://ezine.daemonnews.org/200104/bsd_family.html 912("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 913 914 915Acknowledgments 916--------------- 917 918Josh Gilliam for suggestions, bug fixes, and finding very old 919original BSD announcements from Usenet or tapes. 920 921Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 922 923-- 924Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 925URL: https://cgit.freebsd.org/src/tree/share/misc/bsd-family-tree 926 927$FreeBSD$ 928