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 | | | | | 424 | 12.2 | | | | | 425 | | | | | | 426 *--FreeBSD | | | | | 427 | 13.0 | | NetBSD 9.2 OpenBSD 6.9 DragonFly 6.0.0 428 | | | | | 429FreeBSD 14 -current | NetBSD -current OpenBSD -current DragonFly -current 430 | | | | | 431 v v v v v 432 433Time 434---------------- 435 436Time tolerance +/- 6 months, depending on which book/article you read; if it 437was the announcement in Usenet or if it was available as tape. 438 439[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 440 and John Quarterman. The Design and Implementation of 441 the 4.4BSD Operating System. 442[APL] Apple website [https://www.apple.com/macosx/] 443[BSDI] Berkeley Software Design, Inc. 444[DFB] DragonFlyBSD Project, The. 445[DOC] README, COPYRIGHT on tape. 446[FBD] FreeBSD Project, The. 447[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 448 Volume 11, Info 4, April, 1987. 449[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 450 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 451[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 452 Changes in the Kernel in 2.9BSD. Second Berkeley Software 453 Distribution UNIX Version 2.9, July, 1983. 454[NBD] NetBSD Project, The. 455[OBD] OpenBSD Project, The. 456[QCU] Salus, Peter H. A quarter century of UNIX. 457[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 458[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 459[USE] Usenet announcement. 460[WRS] Wind River Systems, Inc. 461[dmr] Dennis Ritchie, via E-Mail 462 463Multics 1965 464UNIX Summer 1969 465 DEC PDP-7 466First Edition 1971-11-03 [QCU] 467 DEC PDP-11/20, Assembler 468Second Edition 1972-06-12 [QCU] 469 10 UNIX installations 470Third Edition 1973-02-xx [QCU] 471 Pipes, 16 installations 472Fourth Edition 1973-11-xx [QCU] 473 rewriting in C effected, 474 above 30 installations 475Fifth Edition 1974-06-xx [QCU] 476 above 50 installations 477Sixth Edition 1975-05-xx [QCU] 478 port to DEC Vax 479Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 480 first portable UNIX 481Eighth Edition 1985-02-xx [QCU] 482 VAX 11/750, VAX 11/780 [dmr] 483 descended from 4.1c BSD [dmr] 484 descended from 4.1 BSD [44B] 485 scooping-out and replacement of the character-device 486 and networking part by the streams mechanism 487 488Ninth Edition 1986-09-xx [QCU] 489Tenth Edition 1989-10-xx [QCU] 490 4911BSD late 1977 492 1978-01-16 [DOC] 493 1978-03-09 [QCU] 494 PDP-11, Pascal, ex(1) 495 30 free copies of 1BSD sent out 496 35 tapes sold for 50 USD [QCU] 4972BSD mid 1978 [QCU] 1979-05-10 [TUHS] 498 75 2BSD tapes shipped 4992.79BSD 1980-04-xx [TUHS] 5002.8BSD 1981-07-xx [KSJ] 501 First 2BSD with bootable V7 kernel plus 502 community fixes. 5032.8.1BSD 1982-01-xx [QCU] 504 set of performance improvements 5052.9BSD 1983-07-xx [KSJ] 5062.9.1BSD 1983-11-xx [TUHS] 5072.9BSD-Seismo 1985-08-xx [SMS] 5082.10BSD 1987-04-xx [KKK] 5092.10.1BSD 1989-01-xx [SMS] 5102.11BSD 1991-03-14 [SMS] 5112.11BSD rev #430 1999-12-13 [SMS] 512 51332V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 5143BSD late 1979 [QCU] March 1980 [TUHS] 515 virtual memory, page replacement, 516 demand paging 5174.0BSD 1980-10-xx 5184.1BSD 1981-07-08 [DOC] 5194.1aBSD 1982-04-xx 520 alpha release, 100 sites, networking [44B] 5214.1bBSD internal release, fast filesystem [44B] 5224.1cBSD late 1982 523 beta release, IPC [44B] 5244.2BSD 1983-09-xx [QCU] 525 1983-08-03 [DOC] 5264.3BSD 1986-06-xx [QCU] 527 1986-04-05 [KB], [DOC] 5284.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5294.3BSD NET/1 1988-11-xx [QCU] 530 1989-01-01 [DOC] 5314.3BSD Reno 1990-06-29 [QCU], [DOC] 5324.3BSD NET/2 1991-06-28 [QCU], [DOC] 533 534BSD/386 ALPHA 1991-12-xx [BSDI] 535 first code released to people outside BSDI 536386BSD 0.0 1992-02-xx [DOC] 537BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 538BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 539386BSD 0.1 1992-07-28 [DOC] 5404.4BSD Alpha 1992-07-07 541BSD/386 0.9.3 1992-10-xx [BSDI] 542 first external gamma; G customers 543BSD/386 0.9.4 1992-12-xx [BSDI] 544 would have been 1.0 except for request 545 for preliminary injunction 546BSD/386 1.0 1993-03-xx [BSDI] 547 injunction denied; first official release 548NetBSD 0.8 1993-04-20 [NBD] 5494.4BSD 1993-06-01 [USE] 550NetBSD 0.9 1993-08-23 [NBD] 551FreeBSD 1.0 1993-11-01 [FBD] 552FreeBSD 1.0.2 1993-11-14 [FBD] 553 supersedes 1.0 13 days after release. 554BSD/386 1.1 1994-02-xx [BSDI] 5554.4BSD Lite 1994-03-01 [USE] 556FreeBSD 1.1 1994-05-07 [FBD] 557FreeBSD 1.1.5 1994-06-30 [FBD] 558FreeBSD 1.1.5.1 1994-07-05 [FBD] 559 supersedes 1.1.5 5 days after release. 560NetBSD 1.0 1994-10-26 [NBD] 561386BSD 1.0 1994-11-12 [USE] 562FreeBSD 2.0 1994-11-23 [FBD] 563BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 564FreeBSD 2.0.5 1995-06-10 [FBD] 565BSD/OS 2.0.1 1995-06-xx [BSDI] 5664.4BSD Lite Release 2 1995-06-xx [44B] 567 the true final distribution from the CSRG 568FreeBSD 2.1.0 1995-11-19 [FBD] 569NetBSD 1.1 1995-11-26 [NBD] 570BSD/OS 2.1 1996-01-xx [BSDI] 571FreeBSD 2.1.5 1996-07-14 [FBD] 572NetBSD 1.2 1996-10-04 [NBD] 573OpenBSD 2.0 1996-10-18 [OBD] 574FreeBSD 2.1.6 1996-11-16 [FBD] 575FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 576Rhapsody 1997-xx-xx 577FreeBSD 2.1.7 1997-02-20 [FBD] 578BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 579FreeBSD 2.2.0 1997-03-16 [FBD] 580FreeBSD 2.2.1 1997-03-25 [FBD] 581FreeBSD 2.2.2 1997-05-16 [FBD] 582NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 583OpenBSD 2.1 1997-06-01 [OBD] 584FreeBSD 2.2.5 1997-10-22 [FBD] 585OpenBSD 2.2 1997-12-01 [OBD] 586NetBSD 1.3 1998-01-04 [NBD] 587FreeBSD 2.2.6 1998-03-25 [FBD] 588NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 589BSD/OS 3.1 1998-03-xx [BSDI] 590OpenBSD 2.3 1998-05-19 [OBD] 591NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 592FreeBSD 2.2.7 1998-07-22 [FBD] 593BSD/OS 4.0 1998-08-xx [BSDI] 594 2-lock MP support, ELF executables 595FreeBSD 3.0 1998-10-16 [FBD] 596 FreeBSD-3.0 is a snapshot from -current, 597 while 3.1 and 3.2 are from 3.x-stable which 598 was branched quite some time after 3.0-release 599FreeBSD 2.2.8 1998-11-29 [FBD] 600OpenBSD 2.4 1998-12-01 [OBD] 601NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 602FreeBSD 3.1 1999-02-15 [FBD] 603BSD/OS 4.0.1 1999-03-xx [BSDI] 604NetBSD 1.4 1999-05-12 [NBD] 605FreeBSD 3.2 1999-05-17 [FBD] 606OpenBSD 2.5 1999-05-19 [OBD] 607NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 608FreeBSD 3.3 1999-09-17 [FBD] 609OpenBSD 2.6 1999-12-01 [OBD] 610FreeBSD 3.4 1999-12-20 [FBD] 611BSD/OS 4.1 1999-12-xx [BSDI] 612FreeBSD 4.0 2000-03-13 [FBD] 613NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 614OpenBSD 2.7 2000-06-15 [OBD] 615FreeBSD 3.5 2000-06-24 [FBD] 616FreeBSD 4.1 2000-07-27 [FBD] 617FreeBSD 3.5.1 2000-07-28 [FBD] 618FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 619FreeBSD 4.2 2000-11-21 [FBD] 620NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 621BSD/OS 4.2 2000-11-29 [BSDI] 622OpenBSD 2.8 2000-12-01 [OBD] 623NetBSD 1.5 2000-12-06 [NBD] 624Mac OS X 10.0 2001-03-24 [APL] 625FreeBSD 4.3 2001-04-20 [FBD] 626OpenBSD 2.9 2001-06-01 [OBD] 627NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 628NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 629FreeBSD 4.4 2001-09-18 [FBD] 630Mac OS X 10.1 2001-09-29 [APL] 631OpenBSD 3.0 2001-12-01 [OBD] 632FreeBSD 4.5 2002-01-29 [FBD] 633BSD/OS 4.3 2002-03-14 [WRS] 634OpenBSD 3.1 2002-05-19 [OBD] 635FreeBSD 4.6 2002-06-15 [FBD] 636NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 637FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 638Mac OS X 10.2 2002-08-23 [APL] 639NetBSD 1.6 2002-09-14 [NBD] 640FreeBSD 4.7 2002-10-08 [FBD] 641OpenBSD 3.2 2002-11-01 [OBD] 642FreeBSD 5.0 2003-01-17 [FBD] 643 FreeBSD 5.0 is a separate branch off of 644 -current, similar to 3.0. 645FreeBSD 4.8 2003-04-03 [FBD] 646NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 647OpenBSD 3.3 2003-05-01 [OBD] 648BSD/OS 5.0 2003-05-?? [WRS] 649FreeBSD 5.1 2003-06-09 [FBD] 650Mac OS X 10.3 2003-10-24 [APL] 651FreeBSD 4.9 2003-10-28 [FBD] 652BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 653OpenBSD 3.4 2003-11-01 [OBD] 654FreeBSD 5.2 2004-01-12 [FBD] 655FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 656NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 657OpenBSD 3.5 2004-04-01 [OBD] 658FreeBSD 4.10 2004-05-27 [FBD] 659DragonFly 1.0 2004-07-12 [DFB] 660OpenBSD 3.6 2004-10-29 [OBD] 661FreeBSD 5.3 2004-11-06 [FBD] 662NetBSD 2.0 2004-12-09 [NBD] 663FreeBSD 4.11 2005-01-25 [FBD] 664DragonFly 1.2.0 2005-04-08 [DFB] 665NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 666Mac OS X 10.4 2005-04-29 [APL] 667FreeBSD 5.4 2005-05-09 [FBD] 668OpenBSD 3.7 2005-05-19 [OBD] 669NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 670OpenBSD 3.8 2005-11-01 [OBD] 671FreeBSD 6.0 2005-11-01 [FBD] 672NetBSD 2.1 2005-11-02 [NBD] 673NetBSD 3.0 2005-12-23 [NBD] 674DragonFly 1.4.0 2006-01-08 [DFB] 675FreeBSD 2.2.9 2006-04-01 [FBD] 676OpenBSD 3.9 2006-05-01 [OBD] 677FreeBSD 6.1 2006-05-08 [FBD] 678FreeBSD 5.5 2006-05-25 [FBD] 679NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 680DragonFly 1.6.0 2006-07-24 [DFB] 681OpenBSD 4.0 2006-11-01 [OBD] 682NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 683NetBSD 3.1 2006-11-04 [NBD] 684FreeBSD 6.2 2007-01-15 [FBD] 685DragonFly 1.8.0 2007-01-30 [DFB] 686OpenBSD 4.1 2007-05-01 [OBD] 687DragonFly 1.10.0 2007-08-06 [DFB] 688Mac OS X 10.5 2007-10-26 [APL] 689OpenBSD 4.2 2007-11-01 [OBD] 690NetBSD 4.0 2007-12-19 [NBD] 691FreeBSD 6.3 2008-01-18 [FBD] 692DragonFly 1.12.0 2008-02-26 [DFB] 693FreeBSD 7.0 2008-02-27 [FBD] 694OpenBSD 4.3 2008-05-01 [OBD] 695DragonFly 2.0.0 2008-07-21 [DFB] 696OpenBSD 4.4 2008-11-01 [OBD] 697FreeBSD 6.4 2008-11-28 [FBD] 698FreeBSD 7.1 2009-01-04 [FBD] 699DragonFly 2.2.0 2009-02-17 [DFB] 700NetBSD 5.0 2009-04-29 [NBD] 701OpenBSD 4.5 2009-05-01 [OBD] 702FreeBSD 7.2 2009-05-04 [FBD] 703Mac OS X 10.6 2009-06-08 [APL] 704NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 705DragonFly 2.4.0 2009-09-16 [DFB] 706OpenBSD 4.6 2009-10-18 [OBD] 707FreeBSD 8.0 2009-11-26 [FBD] 708NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 709FreeBSD 7.3 2010-03-23 [FBD] 710DragonFly 2.6.0 2010-03-28 [DFB] 711OpenBSD 4.7 2010-05-19 [OBD] 712FreeBSD 8.1 2010-07-24 [FBD] 713DragonFly 2.8.2 2010-10-30 [DFB] 714OpenBSD 4.8 2010-11-01 [OBD] 715NetBSD 5.1 2010-11-19 [NBD] 716FreeBSD 7.4 2011-02-24 [FBD] 717FreeBSD 8.2 2011-02-24 [FBD] 718DragonFly 2.10.1 2011-04-26 [DFB] 719OpenBSD 4.9 2011-05-01 [OBD] 720Mac OS X 10.7 2011-07-20 [APL] 721OpenBSD 5.0 2011-11-01 [OBD] 722FreeBSD 9.0 2012-01-12 [FBD] 723NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 724DragonFly 3.0.1 2012-02-21 [DFB] 725FreeBSD 8.3 2012-04-18 [FBD] 726OpenBSD 5.1 2012-05-01 [OBD] 727Mac OS X 10.8 2012-07-25 [APL] 728NetBSD 6.0 2012-10-17 [NBD] 729OpenBSD 5.2 2012-11-01 [OBD] 730DragonFly 3.2.1 2012-11-02 [DFB] 731NetBSD 5.2 2012-12-03 [NBD] 732NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 733FreeBSD 9.1 2012-12-30 [FBD] 734DragonFly 3.4.1 2013-04-29 [DFB] 735OpenBSD 5.3 2013-05-01 [OBD] 736NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 737NetBSD 6.1 2013-05-18 [NBD] 738FreeBSD 8.4 2013-06-07 [FBD] 739NetBSD 6.1.1 2013-08-22 [NBD] 740NetBSD 5.1.3 2013-09-29 [NBD] 741NetBSD 5.2.1 2013-09-29 [NBD] 742FreeBSD 9.2 2013-09-30 [FBD] 743NetBSD 6.0.3 2013-09-30 [NBD] 744NetBSD 6.1.2 2013-09-30 [NBD] 745Mac OS X 10.9 2013-10-22 [APL] 746OpenBSD 5.4 2013-11-01 [OBD] 747DragonFly 3.6.0 2013-11-25 [DFB] 748FreeBSD 10.0 2014-01-20 [FBD] 749NetBSD 5.1.4 2014-01-25 [NBD] 750NetBSD 5.2.2 2014-01-25 [NBD] 751NetBSD 6.0.4 2014-01-25 [NBD] 752NetBSD 6.1.3 2014-01-25 [NBD] 753DragonFly 3.6.1 2014-02-22 [DFB] 754DragonFly 3.6.2 2014-04-10 [DFB] 755NetBSD 6.0.5 2014-04-12 [NBD] 756NetBSD 6.1.4 2014-04-12 [NBD] 757OpenBSD 5.5 2014-05-01 [OBD] 758DragonFly 3.8.0 2014-06-04 [DFB] 759DragonFly 3.8.1 2014-06-16 [DFB] 760DragonFly 3.6.3 2014-06-17 [DFB] 761FreeBSD 9.3 2014-07-05 [FBD] 762DragonFly 3.8.2 2014-08-08 [DFB] 763NetBSD 6.0.6 2014-09-22 [NBD] 764NetBSD 6.1.5 2014-09-22 [NBD] 765Mac OS X 10.10 2014-10-16 [APL] 766OpenBSD 5.6 2014-11-01 [OBD] 767FreeBSD 10.1 2014-11-14 [FBD] 768DragonFly 4.0.1 2014-11-25 [DFB] 769DragonFly 4.0.2 2015-01-07 [DFB] 770DragonFly 4.0.3 2015-01-21 [DFB] 771DragonFly 4.0.4 2015-03-09 [DFB] 772DragonFly 4.0.5 2015-03-23 [DFB] 773OpenBSD 5.7 2015-05-01 [OBD] 774DragonFly 4.2.0 2015-06-29 [DFB] 775FreeBSD 10.2 2015-08-13 [FBD] 776NetBSD 7.0 2015-09-25 [NBD] 777OS X 10.11 2015-09-30 [APL] 778OpenBSD 5.8 2015-10-18 [OBD] 779DragonFly 4.4.1 2015-12-07 [DFB] 780OpenBSD 5.9 2016-03-29 [OBD] 781FreeBSD 10.3 2016-04-04 [FBD] 782NetBSD 7.0.1 2016-05-22 [NBD] 783DragonFly 4.6.0 2016-08-02 [DFB] 784OpenBSD 6.0 2016-09-01 [OBD] 785macOS 10.12 2016-09-20 [APL] 786FreeBSD 11.0 2016-10-10 [FBD] 787NetBSD 7.0.2 2016-10-21 [NBD] 788NetBSD 7.1 2017-03-11 [NBD] 789DragonFly 4.8.0 2017-03-27 [DFB] 790OpenBSD 6.1 2017-04-11 [OBD] 791FreeBSD 11.1 2017-07-26 [FBD] 792macOS 10.13 2017-09-25 [APL] 793FreeBSD 10.4 2017-10-03 [FBD] 794OpenBSD 6.2 2017-10-09 [OBD] 795DragonFly 5.0.0 2017-10-16 [DFB] 796DragonFly 5.0.1 2017-11-06 [DFB] 797DragonFly 5.0.2 2017-12-04 [DFB] 798NetBSD 7.1.1 2017-12-22 [NBD] 799NetBSD 7.1.2 2018-03-15 [NBD] 800OpenBSD 6.3 2018-04-02 [OBD] 801DragonFly 5.2.0 2018-04-10 [DFB] 802DragonFly 5.2.1 2018-05-20 [DFB] 803DragonFly 5.2.2 2018-06-18 [DFB] 804FreeBSD 11.2 2018-06-27 [FBD] 805NetBSD 8.0 2018-07-17 [NBD] 806NetBSD 7.2 2018-08-29 [NBD] 807macOS 10.14 2018-09-24 [APL] 808OpenBSD 6.4 2018-10-18 [OBD] 809DragonFly 5.4.0 2018-12-03 [DFB] 810FreeBSD 12.0 2018-12-11 [FBD] 811DragonFly 5.4.1 2018-12-24 [DFB] 812OpenBSD 6.5 2019-05-01 [OBD] 813NetBSD 8.1 2019-06-04 [NBD] 814DragonFly 5.6 2019-06-17 [DFB] 815DragonFly 5.6.1 2019-06-19 [DFB] 816FreeBSD 11.3 2019-07-09 [FBD] 817DragonFly 5.6.2 2019-08-11 [DFB] 818OpenBSD 6.6 2019-10-17 [OBD] 819macOS 10.15 2019-10-07 [APL] 820macOS 10.15.1 2019-10-29 [APL] (security/critical release) 821FreeBSD 12.1 2019-11-04 [FBD] 822NetBSD 9.0 2020-02-14 [NBD] 823DragonFly 5.8 2020-03-03 [DFB] 824DragonFly 5.6.3 2020-03-11 [DFB] 825NetBSD 8.2 2020-03-31 [NBD] 826DragonFly 5.8.1 2020-05-06 [DFB] 827OpenBSD 6.7 2020-05-19 [OBD] 828FreeBSD 11.4 2020-06-16 [FBD] 829DragonFly 5.8.2 2020-09-23 [DFB] 830DragonFly 5.8.3 2020-09-24 [DFB] 831OpenBSD 6.8 2020-10-18 [OBD] 832NetBSD 9.1 2020-10-18 [NBD] 833FreeBSD 12.2 2020-10-27 [FBD] 834FreeBSD 13.0 2021-04-13 [FBD] 835OpenBSD 6.9 2021-05-01 [OBD] 836DragonFly 6.0 2021-05-08 [DFB] 837NetBSD 9.2 2021-05-12 [NBD] 838 839Bibliography 840------------------------ 841 842Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 843Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 844System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 845 846Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 847Company, Inc., 1994. ISBN 0-201-54777-5 848 849McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 850Quarterman. The Design and Implementation of the 4.4BSD Operating 851System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 852 853McKusick, Marshall Kirk, George Neville-Neil. The Design and 854Implementation of the FreeBSD Operating System. 855Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 856 857McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 858Design and Implementation of the FreeBSD Operating System, 2nd Edition. 859Pearson Education, Inc., 2014. ISBN 0-321-96897-2 860 861Doug McIlroy. Research Unix Reader. 862 863Michael G. Brown. The Role of BSD in the Development of Unix. 864Presented to the Tasmanian Unix Special Interest Group of the 865Australian Computer Society, Hobart, August 1993. 866 867Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 868URL: http://www.byte.com/art/9410/sec8/art3.htm 869 870Andreas Klemm, Lars Köller. If you're going to San Francisco ... 871Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 872 873BSD Release Announcements collection. 874URL: https://www.FreeBSD.org/releases/ 875 876BSD Hypertext Man Pages 877URL: https://www.FreeBSD.org/cgi/man.cgi 878 879UNIX history graphing project 880URL: http://minnie.tuhs.org/Unix_History/index.html 881 882UNIX history 883URL: http://www.levenez.com/unix/ 884 885James Howard: The BSD Family Tree 886URL: http://ezine.daemonnews.org/200104/bsd_family.html 887("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 888 889 890Acknowledgments 891--------------- 892 893Josh Gilliam for suggestions, bug fixes, and finding very old 894original BSD announcements from Usenet or tapes. 895 896Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 897 898-- 899Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 900URL: https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 901 902$FreeBSD$ 903