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 | v | | 9.0 | | 410 | | | | | 411FreeBSD 13 -current | NetBSD -current OpenBSD -current DragonFly -current 412 | | | | | 413 v v v v v 414 415Time 416---------------- 417 418Time tolerance +/- 6 months, depending on which book/article you read; if it 419was the announcement in Usenet or if it was available as tape. 420 421[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 422 and John Quarterman. The Design and Implementation of 423 the 4.4BSD Operating System. 424[APL] Apple website [https://www.apple.com/macosx/] 425[BSDI] Berkeley Software Design, Inc. 426[DFB] DragonFlyBSD Project, The. 427[DOC] README, COPYRIGHT on tape. 428[FBD] FreeBSD Project, The. 429[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 430 Volume 11, Info 4, April, 1987. 431[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 432 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 433[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 434 Changes in the Kernel in 2.9BSD. Second Berkeley Software 435 Distribution UNIX Version 2.9, July, 1983. 436[NBD] NetBSD Project, The. 437[OBD] OpenBSD Project, The. 438[QCU] Salus, Peter H. A quarter century of UNIX. 439[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 440[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 441[USE] Usenet announcement. 442[WRS] Wind River Systems, Inc. 443[dmr] Dennis Ritchie, via E-Mail 444 445Multics 1965 446UNIX Summer 1969 447 DEC PDP-7 448First Edition 1971-11-03 [QCU] 449 DEC PDP-11/20, Assembler 450Second Edition 1972-06-12 [QCU] 451 10 UNIX installations 452Third Edition 1973-02-xx [QCU] 453 Pipes, 16 installations 454Fourth Edition 1973-11-xx [QCU] 455 rewriting in C effected, 456 above 30 installations 457Fifth Edition 1974-06-xx [QCU] 458 above 50 installations 459Sixth Edition 1975-05-xx [QCU] 460 port to DEC Vax 461Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 462 first portable UNIX 463Eighth Edition 1985-02-xx [QCU] 464 VAX 11/750, VAX 11/780 [dmr] 465 descended from 4.1c BSD [dmr] 466 descended from 4.1 BSD [44B] 467 scooping-out and replacement of the character-device 468 and networking part by the streams mechanism 469 470Ninth Edition 1986-09-xx [QCU] 471Tenth Edition 1989-10-xx [QCU] 472 4731BSD late 1977 474 1978-03-09 [QCU] 475 PDP-11, Pascal, ex(1) 476 30 free copies of 1BSD sent out 477 35 tapes sold for 50 USD [QCU] 4782BSD mid 1978 [QCU] 1979-05-10 [TUHS] 479 75 2BSD tapes shipped 4802.79BSD 1980-04-xx [TUHS] 4812.8BSD 1981-07-xx [KSJ] 482 4832.8.1BSD 1982-01-xx [QCU] 484 set of performance improvements 4852.9BSD 1983-07-xx [KSJ] 4862.9.1BSD 1983-11-xx [TUHS] 4872.9BSD-Seismo 1985-08-xx [SMS] 4882.10BSD 1987-04-xx [KKK] 4892.10.1BSD 1989-01-xx [SMS] 4902.11BSD 1992-02-xx [SMS] 4912.11BSD rev #430 1999-12-13 [SMS] 492 49332V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4943BSD late 1979 [QCU] March 1980 [TUHS] 495 virtual memory, page replacement, 496 demand paging 4974.0BSD 1980-10-xx 4984.1BSD 1981-07-08 [DOC] 4994.1aBSD 1982-04-xx 500 alpha release, 100 sites, networking [44B] 5014.1bBSD internal release, fast filesystem [44B] 5024.1cBSD late 1982 503 beta release, IPC [44B] 5044.2BSD 1983-09-xx [QCU] 505 1983-08-03 [DOC] 5064.3BSD 1986-06-xx [QCU] 507 1986-04-05 [KB], [DOC] 5084.3BSD Tahoe 1988-06-15 [QCU], [DOC] 5094.3BSD NET/1 1988-11-xx [QCU] 510 1989-01-01 [DOC] 5114.3BSD Reno 1990-06-29 [QCU], [DOC] 5124.3BSD NET/2 1991-06-28 [QCU], [DOC] 513 514BSD/386 ALPHA 1991-12-xx [BSDI] 515 first code released to people outside BSDI 516386BSD 0.0 1992-02-xx [DOC] 517BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 518BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 519386BSD 0.1 1992-07-28 [DOC] 5204.4BSD Alpha 1992-07-07 521BSD/386 0.9.3 1992-10-xx [BSDI] 522 first external gamma; G customers 523BSD/386 0.9.4 1992-12-xx [BSDI] 524 would have been 1.0 except for request 525 for preliminary injunction 526BSD/386 1.0 1993-03-xx [BSDI] 527 injunction denied; first official release 528NetBSD 0.8 1993-04-20 [NBD] 5294.4BSD 1993-06-01 [USE] 530NetBSD 0.9 1993-08-23 [NBD] 531FreeBSD 1.0 1993-11-01 [FBD] 532FreeBSD 1.0.2 1993-11-14 [FBD] 533 supersedes 1.0 13 days after release. 534BSD/386 1.1 1994-02-xx [BSDI] 5354.4BSD Lite 1994-03-01 [USE] 536FreeBSD 1.1 1994-05-07 [FBD] 537FreeBSD 1.1.5 1994-06-30 [FBD] 538FreeBSD 1.1.5.1 1994-07-05 [FBD] 539 supersedes 1.1.5 5 days after release. 540NetBSD 1.0 1994-10-26 [NBD] 541386BSD 1.0 1994-11-12 [USE] 542FreeBSD 2.0 1994-11-23 [FBD] 543BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 544FreeBSD 2.0.5 1995-06-10 [FBD] 545BSD/OS 2.0.1 1995-06-xx [BSDI] 5464.4BSD Lite Release 2 1995-06-xx [44B] 547 the true final distribution from the CSRG 548FreeBSD 2.1.0 1995-11-19 [FBD] 549NetBSD 1.1 1995-11-26 [NBD] 550BSD/OS 2.1 1996-01-xx [BSDI] 551FreeBSD 2.1.5 1996-07-14 [FBD] 552NetBSD 1.2 1996-10-04 [NBD] 553OpenBSD 2.0 1996-10-18 [OBD] 554FreeBSD 2.1.6 1996-11-16 [FBD] 555FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 556Rhapsody 1997-xx-xx 557FreeBSD 2.1.7 1997-02-20 [FBD] 558BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 559FreeBSD 2.2.0 1997-03-16 [FBD] 560FreeBSD 2.2.1 1997-03-25 [FBD] 561FreeBSD 2.2.2 1997-05-16 [FBD] 562NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 563OpenBSD 2.1 1997-06-01 [OBD] 564FreeBSD 2.2.5 1997-10-22 [FBD] 565OpenBSD 2.2 1997-12-01 [OBD] 566NetBSD 1.3 1998-01-04 [NBD] 567FreeBSD 2.2.6 1998-03-25 [FBD] 568NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 569BSD/OS 3.1 1998-03-xx [BSDI] 570OpenBSD 2.3 1998-05-19 [OBD] 571NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 572FreeBSD 2.2.7 1998-07-22 [FBD] 573BSD/OS 4.0 1998-08-xx [BSDI] 574 2-lock MP support, ELF executables 575FreeBSD 3.0 1998-10-16 [FBD] 576 FreeBSD-3.0 is a snapshot from -current, 577 while 3.1 and 3.2 are from 3.x-stable which 578 was branched quite some time after 3.0-release 579FreeBSD 2.2.8 1998-11-29 [FBD] 580OpenBSD 2.4 1998-12-01 [OBD] 581NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 582FreeBSD 3.1 1999-02-15 [FBD] 583BSD/OS 4.0.1 1999-03-xx [BSDI] 584NetBSD 1.4 1999-05-12 [NBD] 585FreeBSD 3.2 1999-05-17 [FBD] 586OpenBSD 2.5 1999-05-19 [OBD] 587NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 588FreeBSD 3.3 1999-09-17 [FBD] 589OpenBSD 2.6 1999-12-01 [OBD] 590FreeBSD 3.4 1999-12-20 [FBD] 591BSD/OS 4.1 1999-12-xx [BSDI] 592FreeBSD 4.0 2000-03-13 [FBD] 593NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 594OpenBSD 2.7 2000-06-15 [OBD] 595FreeBSD 3.5 2000-06-24 [FBD] 596FreeBSD 4.1 2000-07-27 [FBD] 597FreeBSD 3.5.1 2000-07-28 [FBD] 598FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 599FreeBSD 4.2 2000-11-21 [FBD] 600NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 601BSD/OS 4.2 2000-11-29 [BSDI] 602OpenBSD 2.8 2000-12-01 [OBD] 603NetBSD 1.5 2000-12-06 [NBD] 604Mac OS X 10.0 2001-03-24 [APL] 605FreeBSD 4.3 2001-04-20 [FBD] 606OpenBSD 2.9 2001-06-01 [OBD] 607NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 608NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 609FreeBSD 4.4 2001-09-18 [FBD] 610Mac OS X 10.1 2001-09-29 [APL] 611OpenBSD 3.0 2001-12-01 [OBD] 612FreeBSD 4.5 2002-01-29 [FBD] 613BSD/OS 4.3 2002-03-14 [WRS] 614OpenBSD 3.1 2002-05-19 [OBD] 615FreeBSD 4.6 2002-06-15 [FBD] 616NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 617FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 618Mac OS X 10.2 2002-08-23 [APL] 619NetBSD 1.6 2002-09-14 [NBD] 620FreeBSD 4.7 2002-10-08 [FBD] 621OpenBSD 3.2 2002-11-01 [OBD] 622FreeBSD 5.0 2003-01-17 [FBD] 623 FreeBSD 5.0 is a separate branch off of 624 -current, similar to 3.0. 625FreeBSD 4.8 2003-04-03 [FBD] 626NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 627OpenBSD 3.3 2003-05-01 [OBD] 628BSD/OS 5.0 2003-05-?? [WRS] 629FreeBSD 5.1 2003-06-09 [FBD] 630Mac OS X 10.3 2003-10-24 [APL] 631FreeBSD 4.9 2003-10-28 [FBD] 632BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 633OpenBSD 3.4 2003-11-01 [OBD] 634FreeBSD 5.2 2004-01-12 [FBD] 635FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 636NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 637OpenBSD 3.5 2004-04-01 [OBD] 638FreeBSD 4.10 2004-05-27 [FBD] 639DragonFly 1.0 2004-07-12 [DFB] 640OpenBSD 3.6 2004-10-29 [OBD] 641FreeBSD 5.3 2004-11-06 [FBD] 642NetBSD 2.0 2004-12-09 [NBD] 643FreeBSD 4.11 2005-01-25 [FBD] 644DragonFly 1.2.0 2005-04-08 [DFB] 645NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 646Mac OS X 10.4 2005-04-29 [APL] 647FreeBSD 5.4 2005-05-09 [FBD] 648OpenBSD 3.7 2005-05-19 [OBD] 649NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 650OpenBSD 3.8 2005-11-01 [OBD] 651FreeBSD 6.0 2005-11-01 [FBD] 652NetBSD 2.1 2005-11-02 [NBD] 653NetBSD 3.0 2005-12-23 [NBD] 654DragonFly 1.4.0 2006-01-08 [DFB] 655FreeBSD 2.2.9 2006-04-01 [FBD] 656OpenBSD 3.9 2006-05-01 [OBD] 657FreeBSD 6.1 2006-05-08 [FBD] 658FreeBSD 5.5 2006-05-25 [FBD] 659NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 660DragonFly 1.6.0 2006-07-24 [DFB] 661OpenBSD 4.0 2006-11-01 [OBD] 662NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 663NetBSD 3.1 2006-11-04 [NBD] 664FreeBSD 6.2 2007-01-15 [FBD] 665DragonFly 1.8.0 2007-01-30 [DFB] 666OpenBSD 4.1 2007-05-01 [OBD] 667DragonFly 1.10.0 2007-08-06 [DFB] 668Mac OS X 10.5 2007-10-26 [APL] 669OpenBSD 4.2 2007-11-01 [OBD] 670NetBSD 4.0 2007-12-19 [NBD] 671FreeBSD 6.3 2008-01-18 [FBD] 672DragonFly 1.12.0 2008-02-26 [DFB] 673FreeBSD 7.0 2008-02-27 [FBD] 674OpenBSD 4.3 2008-05-01 [OBD] 675DragonFly 2.0.0 2008-07-21 [DFB] 676OpenBSD 4.4 2008-11-01 [OBD] 677FreeBSD 6.4 2008-11-28 [FBD] 678FreeBSD 7.1 2009-01-04 [FBD] 679DragonFly 2.2.0 2009-02-17 [DFB] 680NetBSD 5.0 2009-04-29 [NBD] 681OpenBSD 4.5 2009-05-01 [OBD] 682FreeBSD 7.2 2009-05-04 [FBD] 683Mac OS X 10.6 2009-06-08 [APL] 684NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 685DragonFly 2.4.0 2009-09-16 [DFB] 686OpenBSD 4.6 2009-10-18 [OBD] 687FreeBSD 8.0 2009-11-26 [FBD] 688NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 689FreeBSD 7.3 2010-03-23 [FBD] 690DragonFly 2.6.0 2010-03-28 [DFB] 691OpenBSD 4.7 2010-05-19 [OBD] 692FreeBSD 8.1 2010-07-24 [FBD] 693DragonFly 2.8.2 2010-10-30 [DFB] 694OpenBSD 4.8 2010-11-01 [OBD] 695NetBSD 5.1 2010-11-19 [NBD] 696FreeBSD 7.4 2011-02-24 [FBD] 697FreeBSD 8.2 2011-02-24 [FBD] 698DragonFly 2.10.1 2011-04-26 [DFB] 699OpenBSD 4.9 2011-05-01 [OBD] 700Mac OS X 10.7 2011-07-20 [APL] 701OpenBSD 5.0 2011-11-01 [OBD] 702FreeBSD 9.0 2012-01-12 [FBD] 703NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 704DragonFly 3.0.1 2012-02-21 [DFB] 705FreeBSD 8.3 2012-04-18 [FBD] 706OpenBSD 5.1 2012-05-01 [OBD] 707Mac OS X 10.8 2012-07-25 [APL] 708NetBSD 6.0 2012-10-17 [NBD] 709OpenBSD 5.2 2012-11-01 [OBD] 710DragonFly 3.2.1 2012-11-02 [DFB] 711NetBSD 5.2 2012-12-03 [NBD] 712NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 713FreeBSD 9.1 2012-12-30 [FBD] 714DragonFly 3.4.1 2013-04-29 [DFB] 715OpenBSD 5.3 2013-05-01 [OBD] 716NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 717NetBSD 6.1 2013-05-18 [NBD] 718FreeBSD 8.4 2013-06-07 [FBD] 719NetBSD 6.1.1 2013-08-22 [NBD] 720NetBSD 5.1.3 2013-09-29 [NBD] 721NetBSD 5.2.1 2013-09-29 [NBD] 722FreeBSD 9.2 2013-09-30 [FBD] 723NetBSD 6.0.3 2013-09-30 [NBD] 724NetBSD 6.1.2 2013-09-30 [NBD] 725Mac OS X 10.9 2013-10-22 [APL] 726OpenBSD 5.4 2013-11-01 [OBD] 727DragonFly 3.6.0 2013-11-25 [DFB] 728FreeBSD 10.0 2014-01-20 [FBD] 729NetBSD 5.1.4 2014-01-25 [NBD] 730NetBSD 5.2.2 2014-01-25 [NBD] 731NetBSD 6.0.4 2014-01-25 [NBD] 732NetBSD 6.1.3 2014-01-25 [NBD] 733DragonFly 3.6.1 2014-02-22 [DFB] 734DragonFly 3.6.2 2014-04-10 [DFB] 735NetBSD 6.0.5 2014-04-12 [NBD] 736NetBSD 6.1.4 2014-04-12 [NBD] 737OpenBSD 5.5 2014-05-01 [OBD] 738DragonFly 3.8.0 2014-06-04 [DFB] 739DragonFly 3.8.1 2014-06-16 [DFB] 740DragonFly 3.6.3 2014-06-17 [DFB] 741FreeBSD 9.3 2014-07-05 [FBD] 742DragonFly 3.8.2 2014-08-08 [DFB] 743NetBSD 6.0.6 2014-09-22 [NBD] 744NetBSD 6.1.5 2014-09-22 [NBD] 745Mac OS X 10.10 2014-10-16 [APL] 746OpenBSD 5.6 2014-11-01 [OBD] 747FreeBSD 10.1 2014-11-14 [FBD] 748DragonFly 4.0.1 2014-11-25 [DFB] 749DragonFly 4.0.2 2015-01-07 [DFB] 750DragonFly 4.0.3 2015-01-21 [DFB] 751DragonFly 4.0.4 2015-03-09 [DFB] 752DragonFly 4.0.5 2015-03-23 [DFB] 753OpenBSD 5.7 2015-05-01 [OBD] 754DragonFly 4.2.0 2015-06-29 [DFB] 755FreeBSD 10.2 2015-08-13 [FBD] 756NetBSD 7.0 2015-09-25 [NBD] 757OS X 10.11 2015-09-30 [APL] 758OpenBSD 5.8 2015-10-18 [OBD] 759DragonFly 4.4.1 2015-12-07 [DFB] 760OpenBSD 5.9 2016-03-29 [OBD] 761FreeBSD 10.3 2016-04-04 [FBD] 762NetBSD 7.0.1 2016-05-22 [NBD] 763DragonFly 4.6.0 2016-08-02 [DFB] 764OpenBSD 6.0 2016-09-01 [OBD] 765macOS 10.12 2016-09-20 [APL] 766FreeBSD 11.0 2016-10-10 [FBD] 767NetBSD 7.0.2 2016-10-21 [NBD] 768NetBSD 7.1 2017-03-11 [NBD] 769DragonFly 4.8.0 2017-03-27 [DFB] 770OpenBSD 6.1 2017-04-11 [OBD] 771FreeBSD 11.1 2017-07-26 [FBD] 772macOS 10.13 2017-09-25 [APL] 773FreeBSD 10.4 2017-10-03 [FBD] 774OpenBSD 6.2 2017-10-09 [OBD] 775DragonFly 5.0.0 2017-10-16 [DFB] 776DragonFly 5.0.1 2017-11-06 [DFB] 777DragonFly 5.0.2 2017-12-04 [DFB] 778NetBSD 7.1.1 2017-12-22 [NBD] 779NetBSD 7.1.2 2018-03-15 [NBD] 780OpenBSD 6.3 2018-04-02 [OBD] 781DragonFly 5.2.0 2018-04-10 [DFB] 782DragonFly 5.2.1 2018-05-20 [DFB] 783DragonFly 5.2.2 2018-06-18 [DFB] 784FreeBSD 11.2 2018-06-27 [FBD] 785NetBSD 8.0 2018-07-17 [NBD] 786NetBSD 7.2 2018-08-29 [NBD] 787macOS 10.14 2018-09-24 [APL] 788OpenBSD 6.4 2018-10-18 [OBD] 789DragonFly 5.4.0 2018-12-03 [DFB] 790FreeBSD 12.0 2018-12-11 [FBD] 791DragonFly 5.4.1 2018-12-24 [DFB] 792OpenBSD 6.5 2019-05-01 [OBD] 793NetBSD 8.1 2019-06-04 [NBD] 794DragonFly 5.6 2019-06-17 [DFB] 795DragonFly 5.6.1 2019-06-19 [DFB] 796FreeBSD 11.3 2019-07-09 [FBD] 797DragonFly 5.6.2 2019-08-11 [DFB] 798OpenBSD 6.6 2019-10-17 [OBD] 799macOS 10.15 2019-10-07 [APL] 800macOS 10.15.1 2019-10-29 [APL] (security/critical release) 801FreeBSD 12.1 2019-11-04 [FBD] 802NetBSD 9.0 2020-02-14 [NBD] 803 804Bibliography 805------------------------ 806 807Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 808Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 809System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 810 811Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 812Company, Inc., 1994. ISBN 0-201-54777-5 813 814McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 815Quarterman. The Design and Implementation of the 4.4BSD Operating 816System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 817 818McKusick, Marshall Kirk, George Neville-Neil. The Design and 819Implementation of the FreeBSD Operating System. 820Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 821 822McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 823Design and Implementation of the FreeBSD Operating System, 2nd Edition. 824Pearson Education, Inc., 2014. ISBN 0-321-96897-2 825 826Doug McIlroy. Research Unix Reader. 827 828Michael G. Brown. The Role of BSD in the Development of Unix. 829Presented to the Tasmanian Unix Special Interest Group of the 830Australian Computer Society, Hobart, August 1993. 831 832Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 833URL: http://www.byte.com/art/9410/sec8/art3.htm 834 835Andreas Klemm, Lars Köller. If you're going to San Francisco ... 836Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 837 838BSD Release Announcements collection. 839URL: https://www.FreeBSD.org/releases/ 840 841BSD Hypertext Man Pages 842URL: https://www.FreeBSD.org/cgi/man.cgi 843 844UNIX history graphing project 845URL: http://minnie.tuhs.org/Unix_History/index.html 846 847UNIX history 848URL: http://www.levenez.com/unix/ 849 850James Howard: The BSD Family Tree 851URL: http://ezine.daemonnews.org/200104/bsd_family.html 852("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 853 854 855Acknowledgments 856--------------- 857 858Josh Gilliam for suggestions, bug fixes, and finding very old 859original BSD announcements from Usenet or tapes. 860 861Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 862 863-- 864Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 865URL: https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 866 867$FreeBSD$ 868