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 | | | | | 402 | | | | DragonFly 5.6.1 403 | | | | | 404FreeBSD 13 -current | NetBSD -current OpenBSD -current DragonFly -current 405 | | | | | 406 v v v v v 407 408Time 409---------------- 410 411Time tolerance +/- 6 months, depending on which book/article you read; if it 412was the announcement in Usenet or if it was available as tape. 413 414[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 415 and John Quarterman. The Design and Implementation of 416 the 4.4BSD Operating System. 417[APL] Apple website [https://www.apple.com/macosx/] 418[BSDI] Berkeley Software Design, Inc. 419[DFB] DragonFlyBSD Project, The. 420[DOC] README, COPYRIGHT on tape. 421[FBD] FreeBSD Project, The. 422[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 423 Volume 11, Info 4, April, 1987. 424[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 425 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 426[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 427 Changes in the Kernel in 2.9BSD. Second Berkeley Software 428 Distribution UNIX Version 2.9, July, 1983. 429[NBD] NetBSD Project, The. 430[OBD] OpenBSD Project, The. 431[QCU] Salus, Peter H. A quarter century of UNIX. 432[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 433[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 434[USE] Usenet announcement. 435[WRS] Wind River Systems, Inc. 436[dmr] Dennis Ritchie, via E-Mail 437 438Multics 1965 439UNIX Summer 1969 440 DEC PDP-7 441First Edition 1971-11-03 [QCU] 442 DEC PDP-11/20, Assembler 443Second Edition 1972-06-12 [QCU] 444 10 UNIX installations 445Third Edition 1973-02-xx [QCU] 446 Pipes, 16 installations 447Fourth Edition 1973-11-xx [QCU] 448 rewriting in C effected, 449 above 30 installations 450Fifth Edition 1974-06-xx [QCU] 451 above 50 installations 452Sixth Edition 1975-05-xx [QCU] 453 port to DEC Vax 454Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 455 first portable UNIX 456Eighth Edition 1985-02-xx [QCU] 457 VAX 11/750, VAX 11/780 [dmr] 458 descended from 4.1c BSD [dmr] 459 descended from 4.1 BSD [44B] 460 scooping-out and replacement of the character-device 461 and networking part by the streams mechanism 462 463Ninth Edition 1986-09-xx [QCU] 464Tenth Edition 1989-10-xx [QCU] 465 4661BSD late 1977 467 1978-03-09 [QCU] 468 PDP-11, Pascal, ex(1) 469 30 free copies of 1BSD sent out 470 35 tapes sold for 50 USD [QCU] 4712BSD mid 1978 [QCU] 1979-05-10 [TUHS] 472 75 2BSD tapes shipped 4732.79BSD 1980-04-xx [TUHS] 4742.8BSD 1981-07-xx [KSJ] 475 4762.8.1BSD 1982-01-xx [QCU] 477 set of performance improvements 4782.9BSD 1983-07-xx [KSJ] 4792.9.1BSD 1983-11-xx [TUHS] 4802.9BSD-Seismo 1985-08-xx [SMS] 4812.10BSD 1987-04-xx [KKK] 4822.10.1BSD 1989-01-xx [SMS] 4832.11BSD 1992-02-xx [SMS] 4842.11BSD rev #430 1999-12-13 [SMS] 485 48632V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4873BSD late 1979 [QCU] March 1980 [TUHS] 488 virtual memory, page replacement, 489 demand paging 4904.0BSD 1980-10-xx 4914.1BSD 1981-07-08 [DOC] 4924.1aBSD 1982-04-xx 493 alpha release, 100 sites, networking [44B] 4944.1bBSD internal release, fast filesystem [44B] 4954.1cBSD late 1982 496 beta release, IPC [44B] 4974.2BSD 1983-09-xx [QCU] 498 1983-08-03 [DOC] 4994.3BSD 1986-06-xx [QCU] 500 1986-04-05 [KB], [DOC] 5014.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5024.3BSD NET/1 1988-11-xx [QCU] 503 1989-01-01 [DOC] 5044.3BSD Reno 1990-06-29 [QCU], [DOC] 5054.3BSD NET/2 1991-06-28 [QCU], [DOC] 506 507BSD/386 ALPHA 1991-12-xx [BSDI] 508 first code released to people outside BSDI 509386BSD 0.0 1992-02-xx [DOC] 510BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 511BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 512386BSD 0.1 1992-07-28 [DOC] 5134.4BSD Alpha 1992-07-07 514BSD/386 0.9.3 1992-10-xx [BSDI] 515 first external gamma; G customers 516BSD/386 0.9.4 1992-12-xx [BSDI] 517 would have been 1.0 except for request 518 for preliminary injunction 519BSD/386 1.0 1993-03-xx [BSDI] 520 injunction denied; first official release 521NetBSD 0.8 1993-04-20 [NBD] 5224.4BSD 1993-06-01 [USE] 523NetBSD 0.9 1993-08-23 [NBD] 524FreeBSD 1.0 1993-11-01 [FBD] 525FreeBSD 1.0.2 1993-11-14 [FBD] 526 supersedes 1.0 13 days after release. 527BSD/386 1.1 1994-02-xx [BSDI] 5284.4BSD Lite 1994-03-01 [USE] 529FreeBSD 1.1 1994-05-07 [FBD] 530FreeBSD 1.1.5 1994-06-30 [FBD] 531FreeBSD 1.1.5.1 1994-07-05 [FBD] 532 supersedes 1.1.5 5 days after release. 533NetBSD 1.0 1994-10-26 [NBD] 534386BSD 1.0 1994-11-12 [USE] 535FreeBSD 2.0 1994-11-23 [FBD] 536BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 537FreeBSD 2.0.5 1995-06-10 [FBD] 538BSD/OS 2.0.1 1995-06-xx [BSDI] 5394.4BSD Lite Release 2 1995-06-xx [44B] 540 the true final distribution from the CSRG 541FreeBSD 2.1.0 1995-11-19 [FBD] 542NetBSD 1.1 1995-11-26 [NBD] 543BSD/OS 2.1 1996-01-xx [BSDI] 544FreeBSD 2.1.5 1996-07-14 [FBD] 545NetBSD 1.2 1996-10-04 [NBD] 546OpenBSD 2.0 1996-10-18 [OBD] 547FreeBSD 2.1.6 1996-11-16 [FBD] 548FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 549Rhapsody 1997-xx-xx 550FreeBSD 2.1.7 1997-02-20 [FBD] 551BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 552FreeBSD 2.2.0 1997-03-16 [FBD] 553FreeBSD 2.2.1 1997-03-25 [FBD] 554FreeBSD 2.2.2 1997-05-16 [FBD] 555NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 556OpenBSD 2.1 1997-06-01 [OBD] 557FreeBSD 2.2.5 1997-10-22 [FBD] 558OpenBSD 2.2 1997-12-01 [OBD] 559NetBSD 1.3 1998-01-04 [NBD] 560FreeBSD 2.2.6 1998-03-25 [FBD] 561NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 562BSD/OS 3.1 1998-03-xx [BSDI] 563OpenBSD 2.3 1998-05-19 [OBD] 564NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 565FreeBSD 2.2.7 1998-07-22 [FBD] 566BSD/OS 4.0 1998-08-xx [BSDI] 567 2-lock MP support, ELF executables 568FreeBSD 3.0 1998-10-16 [FBD] 569 FreeBSD-3.0 is a snapshot from -current, 570 while 3.1 and 3.2 are from 3.x-stable which 571 was branched quite some time after 3.0-release 572FreeBSD 2.2.8 1998-11-29 [FBD] 573OpenBSD 2.4 1998-12-01 [OBD] 574NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 575FreeBSD 3.1 1999-02-15 [FBD] 576BSD/OS 4.0.1 1999-03-xx [BSDI] 577NetBSD 1.4 1999-05-12 [NBD] 578FreeBSD 3.2 1999-05-17 [FBD] 579OpenBSD 2.5 1999-05-19 [OBD] 580NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 581FreeBSD 3.3 1999-09-17 [FBD] 582OpenBSD 2.6 1999-12-01 [OBD] 583FreeBSD 3.4 1999-12-20 [FBD] 584BSD/OS 4.1 1999-12-xx [BSDI] 585FreeBSD 4.0 2000-03-13 [FBD] 586NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 587OpenBSD 2.7 2000-06-15 [OBD] 588FreeBSD 3.5 2000-06-24 [FBD] 589FreeBSD 4.1 2000-07-27 [FBD] 590FreeBSD 3.5.1 2000-07-28 [FBD] 591FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 592FreeBSD 4.2 2000-11-21 [FBD] 593NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 594BSD/OS 4.2 2000-11-29 [BSDI] 595OpenBSD 2.8 2000-12-01 [OBD] 596NetBSD 1.5 2000-12-06 [NBD] 597Mac OS X 10.0 2001-03-24 [APL] 598FreeBSD 4.3 2001-04-20 [FBD] 599OpenBSD 2.9 2001-06-01 [OBD] 600NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 601NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 602FreeBSD 4.4 2001-09-18 [FBD] 603Mac OS X 10.1 2001-09-29 [APL] 604OpenBSD 3.0 2001-12-01 [OBD] 605FreeBSD 4.5 2002-01-29 [FBD] 606BSD/OS 4.3 2002-03-14 [WRS] 607OpenBSD 3.1 2002-05-19 [OBD] 608FreeBSD 4.6 2002-06-15 [FBD] 609NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 610FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 611Mac OS X 10.2 2002-08-23 [APL] 612NetBSD 1.6 2002-09-14 [NBD] 613FreeBSD 4.7 2002-10-08 [FBD] 614OpenBSD 3.2 2002-11-01 [OBD] 615FreeBSD 5.0 2003-01-17 [FBD] 616 FreeBSD 5.0 is a separate branch off of 617 -current, similar to 3.0. 618FreeBSD 4.8 2003-04-03 [FBD] 619NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 620OpenBSD 3.3 2003-05-01 [OBD] 621BSD/OS 5.0 2003-05-?? [WRS] 622FreeBSD 5.1 2003-06-09 [FBD] 623Mac OS X 10.3 2003-10-24 [APL] 624FreeBSD 4.9 2003-10-28 [FBD] 625BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 626OpenBSD 3.4 2003-11-01 [OBD] 627FreeBSD 5.2 2004-01-12 [FBD] 628FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 629NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 630OpenBSD 3.5 2004-04-01 [OBD] 631FreeBSD 4.10 2004-05-27 [FBD] 632DragonFly 1.0 2004-07-12 [DFB] 633OpenBSD 3.6 2004-10-29 [OBD] 634FreeBSD 5.3 2004-11-06 [FBD] 635NetBSD 2.0 2004-12-09 [NBD] 636FreeBSD 4.11 2005-01-25 [FBD] 637DragonFly 1.2.0 2005-04-08 [DFB] 638NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 639Mac OS X 10.4 2005-04-29 [APL] 640FreeBSD 5.4 2005-05-09 [FBD] 641OpenBSD 3.7 2005-05-19 [OBD] 642NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 643OpenBSD 3.8 2005-11-01 [OBD] 644FreeBSD 6.0 2005-11-01 [FBD] 645NetBSD 2.1 2005-11-02 [NBD] 646NetBSD 3.0 2005-12-23 [NBD] 647DragonFly 1.4.0 2006-01-08 [DFB] 648FreeBSD 2.2.9 2006-04-01 [FBD] 649OpenBSD 3.9 2006-05-01 [OBD] 650FreeBSD 6.1 2006-05-08 [FBD] 651FreeBSD 5.5 2006-05-25 [FBD] 652NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 653DragonFly 1.6.0 2006-07-24 [DFB] 654OpenBSD 4.0 2006-11-01 [OBD] 655NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 656NetBSD 3.1 2006-11-04 [NBD] 657FreeBSD 6.2 2007-01-15 [FBD] 658DragonFly 1.8.0 2007-01-30 [DFB] 659OpenBSD 4.1 2007-05-01 [OBD] 660DragonFly 1.10.0 2007-08-06 [DFB] 661Mac OS X 10.5 2007-10-26 [APL] 662OpenBSD 4.2 2007-11-01 [OBD] 663NetBSD 4.0 2007-12-19 [NBD] 664FreeBSD 6.3 2008-01-18 [FBD] 665DragonFly 1.12.0 2008-02-26 [DFB] 666FreeBSD 7.0 2008-02-27 [FBD] 667OpenBSD 4.3 2008-05-01 [OBD] 668DragonFly 2.0.0 2008-07-21 [DFB] 669OpenBSD 4.4 2008-11-01 [OBD] 670FreeBSD 6.4 2008-11-28 [FBD] 671FreeBSD 7.1 2009-01-04 [FBD] 672DragonFly 2.2.0 2009-02-17 [DFB] 673NetBSD 5.0 2009-04-29 [NBD] 674OpenBSD 4.5 2009-05-01 [OBD] 675FreeBSD 7.2 2009-05-04 [FBD] 676Mac OS X 10.6 2009-06-08 [APL] 677NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 678DragonFly 2.4.0 2009-09-16 [DFB] 679OpenBSD 4.6 2009-10-18 [OBD] 680FreeBSD 8.0 2009-11-26 [FBD] 681NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 682FreeBSD 7.3 2010-03-23 [FBD] 683DragonFly 2.6.0 2010-03-28 [DFB] 684OpenBSD 4.7 2010-05-19 [OBD] 685FreeBSD 8.1 2010-07-24 [FBD] 686DragonFly 2.8.2 2010-10-30 [DFB] 687OpenBSD 4.8 2010-11-01 [OBD] 688NetBSD 5.1 2010-11-19 [NBD] 689FreeBSD 7.4 2011-02-24 [FBD] 690FreeBSD 8.2 2011-02-24 [FBD] 691DragonFly 2.10.1 2011-04-26 [DFB] 692OpenBSD 4.9 2011-05-01 [OBD] 693Mac OS X 10.7 2011-07-20 [APL] 694OpenBSD 5.0 2011-11-01 [OBD] 695FreeBSD 9.0 2012-01-12 [FBD] 696NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 697DragonFly 3.0.1 2012-02-21 [DFB] 698FreeBSD 8.3 2012-04-18 [FBD] 699OpenBSD 5.1 2012-05-01 [OBD] 700Mac OS X 10.8 2012-07-25 [APL] 701NetBSD 6.0 2012-10-17 [NBD] 702OpenBSD 5.2 2012-11-01 [OBD] 703DragonFly 3.2.1 2012-11-02 [DFB] 704NetBSD 5.2 2012-12-03 [NBD] 705NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 706FreeBSD 9.1 2012-12-30 [FBD] 707DragonFly 3.4.1 2013-04-29 [DFB] 708OpenBSD 5.3 2013-05-01 [OBD] 709NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 710NetBSD 6.1 2013-05-18 [NBD] 711FreeBSD 8.4 2013-06-07 [FBD] 712NetBSD 6.1.1 2013-08-22 [NBD] 713NetBSD 5.1.3 2013-09-29 [NBD] 714NetBSD 5.2.1 2013-09-29 [NBD] 715FreeBSD 9.2 2013-09-30 [FBD] 716NetBSD 6.0.3 2013-09-30 [NBD] 717NetBSD 6.1.2 2013-09-30 [NBD] 718Mac OS X 10.9 2013-10-22 [APL] 719OpenBSD 5.4 2013-11-01 [OBD] 720DragonFly 3.6.0 2013-11-25 [DFB] 721FreeBSD 10.0 2014-01-20 [FBD] 722NetBSD 5.1.4 2014-01-25 [NBD] 723NetBSD 5.2.2 2014-01-25 [NBD] 724NetBSD 6.0.4 2014-01-25 [NBD] 725NetBSD 6.1.3 2014-01-25 [NBD] 726DragonFly 3.6.1 2014-02-22 [DFB] 727DragonFly 3.6.2 2014-04-10 [DFB] 728NetBSD 6.0.5 2014-04-12 [NBD] 729NetBSD 6.1.4 2014-04-12 [NBD] 730OpenBSD 5.5 2014-05-01 [OBD] 731DragonFly 3.8.0 2014-06-04 [DFB] 732DragonFly 3.8.1 2014-06-16 [DFB] 733DragonFly 3.6.3 2014-06-17 [DFB] 734FreeBSD 9.3 2014-07-05 [FBD] 735DragonFly 3.8.2 2014-08-08 [DFB] 736NetBSD 6.0.6 2014-09-22 [NBD] 737NetBSD 6.1.5 2014-09-22 [NBD] 738Mac OS X 10.10 2014-10-16 [APL] 739OpenBSD 5.6 2014-11-01 [OBD] 740FreeBSD 10.1 2014-11-14 [FBD] 741DragonFly 4.0.1 2014-11-25 [DFB] 742DragonFly 4.0.2 2015-01-07 [DFB] 743DragonFly 4.0.3 2015-01-21 [DFB] 744DragonFly 4.0.4 2015-03-09 [DFB] 745DragonFly 4.0.5 2015-03-23 [DFB] 746OpenBSD 5.7 2015-05-01 [OBD] 747DragonFly 4.2.0 2015-06-29 [DFB] 748FreeBSD 10.2 2015-08-13 [FBD] 749NetBSD 7.0 2015-09-25 [NBD] 750OS X 10.11 2015-09-30 [APL] 751OpenBSD 5.8 2015-10-18 [OBD] 752DragonFly 4.4.1 2015-12-07 [DFB] 753OpenBSD 5.9 2016-03-29 [OBD] 754FreeBSD 10.3 2016-04-04 [FBD] 755NetBSD 7.0.1 2016-05-22 [NBD] 756DragonFly 4.6.0 2016-08-02 [DFB] 757OpenBSD 6.0 2016-09-01 [OBD] 758macOS 10.12 2016-09-20 [APL] 759FreeBSD 11.0 2016-10-10 [FBD] 760NetBSD 7.0.2 2016-10-21 [NBD] 761NetBSD 7.1 2017-03-11 [NBD] 762DragonFly 4.8.0 2017-03-27 [DFB] 763OpenBSD 6.1 2017-04-11 [OBD] 764FreeBSD 11.1 2017-07-26 [FBD] 765macOS 10.13 2017-09-25 [APL] 766FreeBSD 10.4 2017-10-03 [FBD] 767OpenBSD 6.2 2017-10-09 [OBD] 768DragonFly 5.0.0 2017-10-16 [DFB] 769DragonFly 5.0.1 2017-11-06 [DFB] 770DragonFly 5.0.2 2017-12-04 [DFB] 771NetBSD 7.1.1 2017-12-22 [NBD] 772NetBSD 7.1.2 2018-03-15 [NBD] 773OpenBSD 6.3 2018-04-02 [OBD] 774DragonFly 5.2.0 2018-04-10 [DFB] 775DragonFly 5.2.1 2018-05-20 [DFB] 776DragonFly 5.2.2 2018-06-18 [DFB] 777FreeBSD 11.2 2018-06-27 [FBD] 778NetBSD 8.0 2018-07-17 [NBD] 779NetBSD 7.2 2018-08-29 [NBD] 780macOS 10.14 2018-09-24 [APL] 781OpenBSD 6.4 2018-10-18 [OBD] 782DragonFly 5.4.0 2018-12-03 [DFB] 783FreeBSD 12.0 2018-12-11 [FBD] 784DragonFly 5.4.1 2018-12-24 [DFB] 785OpenBSD 6.5 2019-05-01 [OBD] 786NetBSD 8.1 2019-06-04 [NBD] 787DragonFly 5.6 2019-06-17 [DFB] 788DragonFly 5.6.1 2019-06-19 [DFB] 789 790Bibliography 791------------------------ 792 793Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 794Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 795System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 796 797Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 798Company, Inc., 1994. ISBN 0-201-54777-5 799 800McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 801Quarterman. The Design and Implementation of the 4.4BSD Operating 802System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 803 804McKusick, Marshall Kirk, George Neville-Neil. The Design and 805Implementation of the FreeBSD Operating System. 806Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 807 808McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 809Design and Implementation of the FreeBSD Operating System, 2nd Edition. 810Pearson Education, Inc., 2014. ISBN 0-321-96897-2 811 812Doug McIlroy. Research Unix Reader. 813 814Michael G. Brown. The Role of BSD in the Development of Unix. 815Presented to the Tasmanian Unix Special Interest Group of the 816Australian Computer Society, Hobart, August 1993. 817 818Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 819URL: http://www.byte.com/art/9410/sec8/art3.htm 820 821Andreas Klemm, Lars Köller. If you're going to San Francisco ... 822Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 823 824BSD Release Announcements collection. 825URL: https://www.FreeBSD.org/releases/ 826 827BSD Hypertext Man Pages 828URL: https://www.FreeBSD.org/cgi/man.cgi 829 830UNIX history graphing project 831URL: http://minnie.tuhs.org/Unix_History/index.html 832 833UNIX history 834URL: http://www.levenez.com/unix/ 835 836James Howard: The BSD Family Tree 837URL: http://ezine.daemonnews.org/200104/bsd_family.html 838("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 839 840 841Acknowledgments 842--------------- 843 844Josh Gilliam for suggestions, bug fixes, and finding very old 845original BSD announcements from Usenet or tapes. 846 847Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 848 849-- 850Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 851URL: https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 852 853$FreeBSD: head/share/misc/bsd-family-tree 349295 2019-06-22 22:43:40Z sevan $ 854