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 | | | v | | 396 | 12.0 | | | | DragonFly 5.4.1 397 | | | | OpenBSD 6.5 | 398 | | | | | | 399 | | | NetBSD | | 400 | | | 8.1 | DragonFly 5.6 401 | | | | | 402FreeBSD 13 -current | NetBSD -current OpenBSD -current DragonFly -current 403 | | | | | 404 v v v v v 405 406Time 407---------------- 408 409Time tolerance +/- 6 months, depending on which book/article you read; if it 410was the announcement in Usenet or if it was available as tape. 411 412[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 413 and John Quarterman. The Design and Implementation of 414 the 4.4BSD Operating System. 415[APL] Apple website [https://www.apple.com/macosx/] 416[BSDI] Berkeley Software Design, Inc. 417[DFB] DragonFlyBSD Project, The. 418[DOC] README, COPYRIGHT on tape. 419[FBD] FreeBSD Project, The. 420[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 421 Volume 11, Info 4, April, 1987. 422[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 423 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 424[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 425 Changes in the Kernel in 2.9BSD. Second Berkeley Software 426 Distribution UNIX Version 2.9, July, 1983. 427[NBD] NetBSD Project, The. 428[OBD] OpenBSD Project, The. 429[QCU] Salus, Peter H. A quarter century of UNIX. 430[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 431[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 432[USE] Usenet announcement. 433[WRS] Wind River Systems, Inc. 434[dmr] Dennis Ritchie, via E-Mail 435 436Multics 1965 437UNIX Summer 1969 438 DEC PDP-7 439First Edition 1971-11-03 [QCU] 440 DEC PDP-11/20, Assembler 441Second Edition 1972-06-12 [QCU] 442 10 UNIX installations 443Third Edition 1973-02-xx [QCU] 444 Pipes, 16 installations 445Fourth Edition 1973-11-xx [QCU] 446 rewriting in C effected, 447 above 30 installations 448Fifth Edition 1974-06-xx [QCU] 449 above 50 installations 450Sixth Edition 1975-05-xx [QCU] 451 port to DEC Vax 452Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 453 first portable UNIX 454Eighth Edition 1985-02-xx [QCU] 455 VAX 11/750, VAX 11/780 [dmr] 456 descended from 4.1c BSD [dmr] 457 descended from 4.1 BSD [44B] 458 scooping-out and replacement of the character-device 459 and networking part by the streams mechanism 460 461Ninth Edition 1986-09-xx [QCU] 462Tenth Edition 1989-10-xx [QCU] 463 4641BSD late 1977 465 1978-03-09 [QCU] 466 PDP-11, Pascal, ex(1) 467 30 free copies of 1BSD sent out 468 35 tapes sold for 50 USD [QCU] 4692BSD mid 1978 [QCU] 1979-05-10 [TUHS] 470 75 2BSD tapes shipped 4712.79BSD 1980-04-xx [TUHS] 4722.8BSD 1981-07-xx [KSJ] 473 4742.8.1BSD 1982-01-xx [QCU] 475 set of performance improvements 4762.9BSD 1983-07-xx [KSJ] 4772.9.1BSD 1983-11-xx [TUHS] 4782.9BSD-Seismo 1985-08-xx [SMS] 4792.10BSD 1987-04-xx [KKK] 4802.10.1BSD 1989-01-xx [SMS] 4812.11BSD 1992-02-xx [SMS] 4822.11BSD rev #430 1999-12-13 [SMS] 483 48432V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4853BSD late 1979 [QCU] March 1980 [TUHS] 486 virtual memory, page replacement, 487 demand paging 4884.0BSD 1980-10-xx 4894.1BSD 1981-07-08 [DOC] 4904.1aBSD 1982-04-xx 491 alpha release, 100 sites, networking [44B] 4924.1bBSD internal release, fast filesystem [44B] 4934.1cBSD late 1982 494 beta release, IPC [44B] 4954.2BSD 1983-09-xx [QCU] 496 1983-08-03 [DOC] 4974.3BSD 1986-06-xx [QCU] 498 1986-04-05 [KB], [DOC] 4994.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5004.3BSD NET/1 1988-11-xx [QCU] 501 1989-01-01 [DOC] 5024.3BSD Reno 1990-06-29 [QCU], [DOC] 5034.3BSD NET/2 1991-06-28 [QCU], [DOC] 504 505BSD/386 ALPHA 1991-12-xx [BSDI] 506 first code released to people outside BSDI 507386BSD 0.0 1992-02-xx [DOC] 508BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 509BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 510386BSD 0.1 1992-07-28 [DOC] 5114.4BSD Alpha 1992-07-07 512BSD/386 0.9.3 1992-10-xx [BSDI] 513 first external gamma; G customers 514BSD/386 0.9.4 1992-12-xx [BSDI] 515 would have been 1.0 except for request 516 for preliminary injunction 517BSD/386 1.0 1993-03-xx [BSDI] 518 injunction denied; first official release 519NetBSD 0.8 1993-04-20 [NBD] 5204.4BSD 1993-06-01 [USE] 521NetBSD 0.9 1993-08-23 [NBD] 522FreeBSD 1.0 1993-11-01 [FBD] 523FreeBSD 1.0.2 1993-11-14 [FBD] 524 supersedes 1.0 13 days after release. 525BSD/386 1.1 1994-02-xx [BSDI] 5264.4BSD Lite 1994-03-01 [USE] 527FreeBSD 1.1 1994-05-07 [FBD] 528FreeBSD 1.1.5 1994-06-30 [FBD] 529FreeBSD 1.1.5.1 1994-07-05 [FBD] 530 supersedes 1.1.5 5 days after release. 531NetBSD 1.0 1994-10-26 [NBD] 532386BSD 1.0 1994-11-12 [USE] 533FreeBSD 2.0 1994-11-23 [FBD] 534BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 535FreeBSD 2.0.5 1995-06-10 [FBD] 536BSD/OS 2.0.1 1995-06-xx [BSDI] 5374.4BSD Lite Release 2 1995-06-xx [44B] 538 the true final distribution from the CSRG 539FreeBSD 2.1.0 1995-11-19 [FBD] 540NetBSD 1.1 1995-11-26 [NBD] 541BSD/OS 2.1 1996-01-xx [BSDI] 542FreeBSD 2.1.5 1996-07-14 [FBD] 543NetBSD 1.2 1996-10-04 [NBD] 544OpenBSD 2.0 1996-10-18 [OBD] 545FreeBSD 2.1.6 1996-11-16 [FBD] 546FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 547Rhapsody 1997-xx-xx 548FreeBSD 2.1.7 1997-02-20 [FBD] 549BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 550FreeBSD 2.2.0 1997-03-16 [FBD] 551FreeBSD 2.2.1 1997-03-25 [FBD] 552FreeBSD 2.2.2 1997-05-16 [FBD] 553NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 554OpenBSD 2.1 1997-06-01 [OBD] 555FreeBSD 2.2.5 1997-10-22 [FBD] 556OpenBSD 2.2 1997-12-01 [OBD] 557NetBSD 1.3 1998-01-04 [NBD] 558FreeBSD 2.2.6 1998-03-25 [FBD] 559NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 560BSD/OS 3.1 1998-03-xx [BSDI] 561OpenBSD 2.3 1998-05-19 [OBD] 562NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 563FreeBSD 2.2.7 1998-07-22 [FBD] 564BSD/OS 4.0 1998-08-xx [BSDI] 565 2-lock MP support, ELF executables 566FreeBSD 3.0 1998-10-16 [FBD] 567 FreeBSD-3.0 is a snapshot from -current, 568 while 3.1 and 3.2 are from 3.x-stable which 569 was branched quite some time after 3.0-release 570FreeBSD 2.2.8 1998-11-29 [FBD] 571OpenBSD 2.4 1998-12-01 [OBD] 572NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 573FreeBSD 3.1 1999-02-15 [FBD] 574BSD/OS 4.0.1 1999-03-xx [BSDI] 575NetBSD 1.4 1999-05-12 [NBD] 576FreeBSD 3.2 1999-05-17 [FBD] 577OpenBSD 2.5 1999-05-19 [OBD] 578NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 579FreeBSD 3.3 1999-09-17 [FBD] 580OpenBSD 2.6 1999-12-01 [OBD] 581FreeBSD 3.4 1999-12-20 [FBD] 582BSD/OS 4.1 1999-12-xx [BSDI] 583FreeBSD 4.0 2000-03-13 [FBD] 584NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 585OpenBSD 2.7 2000-06-15 [OBD] 586FreeBSD 3.5 2000-06-24 [FBD] 587FreeBSD 4.1 2000-07-27 [FBD] 588FreeBSD 3.5.1 2000-07-28 [FBD] 589FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 590FreeBSD 4.2 2000-11-21 [FBD] 591NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 592BSD/OS 4.2 2000-11-29 [BSDI] 593OpenBSD 2.8 2000-12-01 [OBD] 594NetBSD 1.5 2000-12-06 [NBD] 595Mac OS X 10.0 2001-03-24 [APL] 596FreeBSD 4.3 2001-04-20 [FBD] 597OpenBSD 2.9 2001-06-01 [OBD] 598NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 599NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 600FreeBSD 4.4 2001-09-18 [FBD] 601Mac OS X 10.1 2001-09-29 [APL] 602OpenBSD 3.0 2001-12-01 [OBD] 603FreeBSD 4.5 2002-01-29 [FBD] 604BSD/OS 4.3 2002-03-14 [WRS] 605OpenBSD 3.1 2002-05-19 [OBD] 606FreeBSD 4.6 2002-06-15 [FBD] 607NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 608FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 609Mac OS X 10.2 2002-08-23 [APL] 610NetBSD 1.6 2002-09-14 [NBD] 611FreeBSD 4.7 2002-10-08 [FBD] 612OpenBSD 3.2 2002-11-01 [OBD] 613FreeBSD 5.0 2003-01-17 [FBD] 614 FreeBSD 5.0 is a separate branch off of 615 -current, similar to 3.0. 616FreeBSD 4.8 2003-04-03 [FBD] 617NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 618OpenBSD 3.3 2003-05-01 [OBD] 619BSD/OS 5.0 2003-05-?? [WRS] 620FreeBSD 5.1 2003-06-09 [FBD] 621Mac OS X 10.3 2003-10-24 [APL] 622FreeBSD 4.9 2003-10-28 [FBD] 623BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 624OpenBSD 3.4 2003-11-01 [OBD] 625FreeBSD 5.2 2004-01-12 [FBD] 626FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 627NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 628OpenBSD 3.5 2004-04-01 [OBD] 629FreeBSD 4.10 2004-05-27 [FBD] 630DragonFly 1.0 2004-07-12 [DFB] 631OpenBSD 3.6 2004-10-29 [OBD] 632FreeBSD 5.3 2004-11-06 [FBD] 633NetBSD 2.0 2004-12-09 [NBD] 634FreeBSD 4.11 2005-01-25 [FBD] 635DragonFly 1.2.0 2005-04-08 [DFB] 636NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 637Mac OS X 10.4 2005-04-29 [APL] 638FreeBSD 5.4 2005-05-09 [FBD] 639OpenBSD 3.7 2005-05-19 [OBD] 640NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 641OpenBSD 3.8 2005-11-01 [OBD] 642FreeBSD 6.0 2005-11-01 [FBD] 643NetBSD 2.1 2005-11-02 [NBD] 644NetBSD 3.0 2005-12-23 [NBD] 645DragonFly 1.4.0 2006-01-08 [DFB] 646FreeBSD 2.2.9 2006-04-01 [FBD] 647OpenBSD 3.9 2006-05-01 [OBD] 648FreeBSD 6.1 2006-05-08 [FBD] 649FreeBSD 5.5 2006-05-25 [FBD] 650NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 651DragonFly 1.6.0 2006-07-24 [DFB] 652OpenBSD 4.0 2006-11-01 [OBD] 653NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 654NetBSD 3.1 2006-11-04 [NBD] 655FreeBSD 6.2 2007-01-15 [FBD] 656DragonFly 1.8.0 2007-01-30 [DFB] 657OpenBSD 4.1 2007-05-01 [OBD] 658DragonFly 1.10.0 2007-08-06 [DFB] 659Mac OS X 10.5 2007-10-26 [APL] 660OpenBSD 4.2 2007-11-01 [OBD] 661NetBSD 4.0 2007-12-19 [NBD] 662FreeBSD 6.3 2008-01-18 [FBD] 663DragonFly 1.12.0 2008-02-26 [DFB] 664FreeBSD 7.0 2008-02-27 [FBD] 665OpenBSD 4.3 2008-05-01 [OBD] 666DragonFly 2.0.0 2008-07-21 [DFB] 667OpenBSD 4.4 2008-11-01 [OBD] 668FreeBSD 6.4 2008-11-28 [FBD] 669FreeBSD 7.1 2009-01-04 [FBD] 670DragonFly 2.2.0 2009-02-17 [DFB] 671NetBSD 5.0 2009-04-29 [NBD] 672OpenBSD 4.5 2009-05-01 [OBD] 673FreeBSD 7.2 2009-05-04 [FBD] 674Mac OS X 10.6 2009-06-08 [APL] 675NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 676DragonFly 2.4.0 2009-09-16 [DFB] 677OpenBSD 4.6 2009-10-18 [OBD] 678FreeBSD 8.0 2009-11-26 [FBD] 679NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 680FreeBSD 7.3 2010-03-23 [FBD] 681DragonFly 2.6.0 2010-03-28 [DFB] 682OpenBSD 4.7 2010-05-19 [OBD] 683FreeBSD 8.1 2010-07-24 [FBD] 684DragonFly 2.8.2 2010-10-30 [DFB] 685OpenBSD 4.8 2010-11-01 [OBD] 686NetBSD 5.1 2010-11-19 [NBD] 687FreeBSD 7.4 2011-02-24 [FBD] 688FreeBSD 8.2 2011-02-24 [FBD] 689DragonFly 2.10.1 2011-04-26 [DFB] 690OpenBSD 4.9 2011-05-01 [OBD] 691Mac OS X 10.7 2011-07-20 [APL] 692OpenBSD 5.0 2011-11-01 [OBD] 693FreeBSD 9.0 2012-01-12 [FBD] 694NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 695DragonFly 3.0.1 2012-02-21 [DFB] 696FreeBSD 8.3 2012-04-18 [FBD] 697OpenBSD 5.1 2012-05-01 [OBD] 698Mac OS X 10.8 2012-07-25 [APL] 699NetBSD 6.0 2012-10-17 [NBD] 700OpenBSD 5.2 2012-11-01 [OBD] 701DragonFly 3.2.1 2012-11-02 [DFB] 702NetBSD 5.2 2012-12-03 [NBD] 703NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 704FreeBSD 9.1 2012-12-30 [FBD] 705DragonFly 3.4.1 2013-04-29 [DFB] 706OpenBSD 5.3 2013-05-01 [OBD] 707NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 708NetBSD 6.1 2013-05-18 [NBD] 709FreeBSD 8.4 2013-06-07 [FBD] 710NetBSD 6.1.1 2013-08-22 [NBD] 711NetBSD 5.1.3 2013-09-29 [NBD] 712NetBSD 5.2.1 2013-09-29 [NBD] 713FreeBSD 9.2 2013-09-30 [FBD] 714NetBSD 6.0.3 2013-09-30 [NBD] 715NetBSD 6.1.2 2013-09-30 [NBD] 716Mac OS X 10.9 2013-10-22 [APL] 717OpenBSD 5.4 2013-11-01 [OBD] 718DragonFly 3.6.0 2013-11-25 [DFB] 719FreeBSD 10.0 2014-01-20 [FBD] 720NetBSD 5.1.4 2014-01-25 [NBD] 721NetBSD 5.2.2 2014-01-25 [NBD] 722NetBSD 6.0.4 2014-01-25 [NBD] 723NetBSD 6.1.3 2014-01-25 [NBD] 724DragonFly 3.6.1 2014-02-22 [DFB] 725DragonFly 3.6.2 2014-04-10 [DFB] 726NetBSD 6.0.5 2014-04-12 [NBD] 727NetBSD 6.1.4 2014-04-12 [NBD] 728OpenBSD 5.5 2014-05-01 [OBD] 729DragonFly 3.8.0 2014-06-04 [DFB] 730DragonFly 3.8.1 2014-06-16 [DFB] 731DragonFly 3.6.3 2014-06-17 [DFB] 732FreeBSD 9.3 2014-07-05 [FBD] 733DragonFly 3.8.2 2014-08-08 [DFB] 734NetBSD 6.0.6 2014-09-22 [NBD] 735NetBSD 6.1.5 2014-09-22 [NBD] 736Mac OS X 10.10 2014-10-16 [APL] 737OpenBSD 5.6 2014-11-01 [OBD] 738FreeBSD 10.1 2014-11-14 [FBD] 739DragonFly 4.0.1 2014-11-25 [DFB] 740DragonFly 4.0.2 2015-01-07 [DFB] 741DragonFly 4.0.3 2015-01-21 [DFB] 742DragonFly 4.0.4 2015-03-09 [DFB] 743DragonFly 4.0.5 2015-03-23 [DFB] 744OpenBSD 5.7 2015-05-01 [OBD] 745DragonFly 4.2.0 2015-06-29 [DFB] 746FreeBSD 10.2 2015-08-13 [FBD] 747NetBSD 7.0 2015-09-25 [NBD] 748OS X 10.11 2015-09-30 [APL] 749OpenBSD 5.8 2015-10-18 [OBD] 750DragonFly 4.4.1 2015-12-07 [DFB] 751OpenBSD 5.9 2016-03-29 [OBD] 752FreeBSD 10.3 2016-04-04 [FBD] 753NetBSD 7.0.1 2016-05-22 [NBD] 754DragonFly 4.6.0 2016-08-02 [DFB] 755OpenBSD 6.0 2016-09-01 [OBD] 756macOS 10.12 2016-09-20 [APL] 757FreeBSD 11.0 2016-10-10 [FBD] 758NetBSD 7.0.2 2016-10-21 [NBD] 759NetBSD 7.1 2017-03-11 [NBD] 760DragonFly 4.8.0 2017-03-27 [DFB] 761OpenBSD 6.1 2017-04-11 [OBD] 762FreeBSD 11.1 2017-07-26 [FBD] 763macOS 10.13 2017-09-25 [APL] 764FreeBSD 10.4 2017-10-03 [FBD] 765OpenBSD 6.2 2017-10-09 [OBD] 766DragonFly 5.0.0 2017-10-16 [DFB] 767DragonFly 5.0.1 2017-11-06 [DFB] 768DragonFly 5.0.2 2017-12-04 [DFB] 769NetBSD 7.1.1 2017-12-22 [NBD] 770NetBSD 7.1.2 2018-03-15 [NBD] 771OpenBSD 6.3 2018-04-02 [OBD] 772DragonFly 5.2.0 2018-04-10 [DFB] 773DragonFly 5.2.1 2018-05-20 [DFB] 774DragonFly 5.2.2 2018-06-18 [DFB] 775FreeBSD 11.2 2018-06-27 [FBD] 776NetBSD 8.0 2018-07-17 [NBD] 777NetBSD 7.2 2018-08-29 [NBD] 778macOS 10.14 2018-09-24 [APL] 779OpenBSD 6.4 2018-10-18 [OBD] 780DragonFly 5.4.0 2018-12-03 [DFB] 781FreeBSD 12.0 2018-12-11 [FBD] 782DragonFly 5.4.1 2018-12-24 [DFB] 783OpenBSD 6.5 2019-05-01 [OBD] 784NetBSD 8.1 2019-06-04 [NBD] 785DragonFly 5.6 2019-06-17 [DFB] 786 787Bibliography 788------------------------ 789 790Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 791Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 792System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 793 794Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 795Company, Inc., 1994. ISBN 0-201-54777-5 796 797McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 798Quarterman. The Design and Implementation of the 4.4BSD Operating 799System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 800 801McKusick, Marshall Kirk, George Neville-Neil. The Design and 802Implementation of the FreeBSD Operating System. 803Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 804 805McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 806Design and Implementation of the FreeBSD Operating System, 2nd Edition. 807Pearson Education, Inc., 2014. ISBN 0-321-96897-2 808 809Doug McIlroy. Research Unix Reader. 810 811Michael G. Brown. The Role of BSD in the Development of Unix. 812Presented to the Tasmanian Unix Special Interest Group of the 813Australian Computer Society, Hobart, August 1993. 814 815Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 816URL: http://www.byte.com/art/9410/sec8/art3.htm 817 818Andreas Klemm, Lars Köller. If you're going to San Francisco ... 819Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 820 821BSD Release Announcements collection. 822URL: https://www.FreeBSD.org/releases/ 823 824BSD Hypertext Man Pages 825URL: https://www.FreeBSD.org/cgi/man.cgi 826 827UNIX history graphing project 828URL: http://minnie.tuhs.org/Unix_History/index.html 829 830UNIX history 831URL: http://www.levenez.com/unix/ 832 833James Howard: The BSD Family Tree 834URL: http://ezine.daemonnews.org/200104/bsd_family.html 835("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 836 837 838Acknowledgments 839--------------- 840 841Josh Gilliam for suggestions, bug fixes, and finding very old 842original BSD announcements from Usenet or tapes. 843 844Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 845 846-- 847Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 848URL: https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 849 850$FreeBSD: head/share/misc/bsd-family-tree 349177 2019-06-18 21:02:40Z sevan $ 851$NetBSD: bsd-family-tree,v 1.74 2019/06/18 21:07:21 sevan Exp $ 852