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 5.0 OpenBSD 4.5 | 233 | \ | | | \ | | 234 | | Mac OS X | | \ | | 235 | | 10.6 | | \ | | 236 | | | | | NetBSD | DragonFly 2.4.0 237 | | | | | 5.0.1 OpenBSD 4.6 | 238 | | | | | | | | 239 *--FreeBSD | | | | | | | 240 | 8.0 | | | | | | | 241 | | FreeBSD | | | NetBSD | | 242 | | 7.3 | | | 5.0.2 | DragonFly 2.6.0 243 | | | | | | OpenBSD 4.7 | 244 | FreeBSD | | | | | | 245 | 8.1 | | | | | | 246 | | | | | | | DragonFly 2.8.2 247 | | | | | | OpenBSD 4.8 | 248 | | | | | *--NetBSD | | 249 | FreeBSD FreeBSD | | | 5.1 | | 250 | 8.2 7.4 | | | | | DragonFly 2.10.1 251 | | | | | | OpenBSD 4.9 | 252 | `-----. Mac OS X | | | | | 253 | \ 10.7 | | | | | 254 | | | | | | OpenBSD 5.0 | 255 *--FreeBSD | | | | | | | 256 | 9.0 | | | | NetBSD | DragonFly 3.0.1 257 | | FreeBSD | | | 5.1.2 | | 258 | | 8.3 | | | | | | 259 | | | | | | NetBSD | | 260 | | | | | | 5.1.3 | | 261 | | | | | | | | | 262 | | | | | | NetBSD | | 263 | | | | | | 5.1.4 | | 264 | | | | | | OpenBSD 5.1 | 265 | | | Mac OS X | `----. | | 266 | | | 10.8 | \ | | 267 | | | | NetBSD 6.0 | | | 268 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 269 | FreeBSD | | | | | NetBSD | | 270 | 9.1 | | | | | 5.2 | | 271 | | | | | | | | | | 272 | | | | | | | NetBSD | | 273 | | | | | | | 5.2.1 | | 274 | | | | | | | | | | 275 | | | | | | | NetBSD | | 276 | | | | | | | 5.2.2 | | 277 | | | | | | | | | 278 | | | | | | \ | | 279 | | | | | | NetBSD | | 280 | | | | | | 6.0.1 | | 281 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1 282 | | | | | | NetBSD | | 283 | | | | | | 6.0.2 | | 284 | | | | | | | | | 285 | | | | | | NetBSD | | 286 | | | | | | 6.0.3 | | 287 | | | | | | | | | 288 | | | | | | NetBSD | | 289 | | | | | | 6.0.4 | | 290 | | | | | | | | | 291 | | | | | | NetBSD | | 292 | | | | | | 6.0.5 | | 293 | | | | | | | | 294 | | | | | |`-NetBSD 6.1 | | 295 | | FreeBSD | | | | | 296 | | 8.4 | | NetBSD 6.1.1 | | 297 | | | | | | | 298 | FreeBSD | | NetBSD 6.1.2 | | 299 | 9.2 Mac OS X | | | | 300 | | 10.9 | | OpenBSD 5.4 | 301 | `-----. | | | | DragonFly 3.6.0 302 | \ | | | | | 303 *--FreeBSD | | | NetBSD 6.1.3 | | 304 | 10.0 | | | | | | 305 | | | | | | | DragonFly 3.6.1 306 | | | | | | | | 307 | | | | | | | | 308 | | | | | | | DragonFly 3.6.2 309 | | | | | NetBSD 6.1.4 | | 310 | | | | | | | | 311 | | | | | | OpenBSD 5.5 | 312 | | | | | | | | 313 | | | | | | | DragonFly 3.8.0 314 | | | | | | | | 315 | | | | | | | | 316 | | | | | | | DragonFly 3.8.1 317 | | | | | | | | 318 | | | | | | | | 319 | | | | | | | DragonFly 3.6.3 320 | | | | | | | | 321 | | FreeBSD | | | | | 322 | | 9.3 | | | | | 323 | | | | NetBSD 6.1.5 | DragonFly 3.8.2 324 | | Mac OS X | | | 325 | | 10.10 | | | 326 | | | | OpenBSD 5.6 | 327 | FreeBSD | | | | 328 | 10.1 | | | DragonFly 4.0.1 329 | | | | | | 330 | | | | | DragonFly 4.0.2 331 | | | | | | 332 | | | | | DragonFly 4.0.3 333 | | | | | | 334 | | | | | DragonFly 4.0.4 335 | | | | | | 336 | | | | | DragonFly 4.0.5 337 | | | | | | 338 | | | | OpenBSD 5.7 | 339 | | | | | DragonFly 4.2.0 340 | FreeBSD | | | | 341 | 10.2 | | | | 342 | | macOS NetBSD 7.0 | | 343 | | 10.11 | | | OpenBSD 5.8 | 344 | | | | | `--. | DragonFly 4.4.1 345 | FreeBSD | | | | OpenBSD 5.9 | 346 | 10.3 | | | | | | 347 | | | | | NetBSD 7.0.1 | | 348 | `------. | | | | | DragonFly 4.6.0 349 | | | | | | | | 350 | | | | | | | | 351 *--FreeBSD | macOS | | | OpenBSD 6.0 | 352 | 11.0 | 10.12 | | NetBSD 7.0.2 | | 353 | | | | | | | | 354 | | | | | *- NetBSD 7.1 | | 355 | | | macOS | | DragonFly 4.8.0 356 | | | 10.13 | OpenBSD 6.1 | 357 | FreeBSD | | | | | 358 | 11.1 FreeBSD | | | | 359 | | 10.4 | | OpenBSD 6.2 | 360 | | | | | | 361 | v | | | DragonFly 5.0.0 362 | | | | | 363 | | | | DragonFly 5.0.1 364 | | | | | 365 | | | | DragonFly 5.0.2 366 | | | | | 367FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current 368 | | | | | 369 v v v v v 370 371Time 372---------------- 373 374Time tolerance +/- 6 months, depending on which book/article you read; if it 375was the announcement in Usenet or if it was available as tape. 376 377[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 378 and John Quarterman. The Design and Implementation of 379 the 4.4BSD Operating System. 380[APL] Apple website [https://www.apple.com/macosx/] 381[BSDI] Berkeley Software Design, Inc. 382[DFB] DragonFlyBSD Project, The. 383[DOC] README, COPYRIGHT on tape. 384[FBD] FreeBSD Project, The. 385[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 386 Volume 11, Info 4, April, 1987. 387[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 388 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 389[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 390 Changes in the Kernel in 2.9BSD. Second Berkeley Software 391 Distribution UNIX Version 2.9, July, 1983. 392[NBD] NetBSD Project, The. 393[OBD] OpenBSD Project, The. 394[QCU] Salus, Peter H. A quarter century of UNIX. 395[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 396[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 397[USE] Usenet announcement. 398[WRS] Wind River Systems, Inc. 399[dmr] Dennis Ritchie, via E-Mail 400 401Multics 1965 402UNIX Summer 1969 403 DEC PDP-7 404First Edition 1971-11-03 [QCU] 405 DEC PDP-11/20, Assembler 406Second Edition 1972-06-12 [QCU] 407 10 UNIX installations 408Third Edition 1973-02-xx [QCU] 409 Pipes, 16 installations 410Fourth Edition 1973-11-xx [QCU] 411 rewriting in C effected, 412 above 30 installations 413Fifth Edition 1974-06-xx [QCU] 414 above 50 installations 415Sixth Edition 1975-05-xx [QCU] 416 port to DEC Vax 417Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 418 first portable UNIX 419Eighth Edition 1985-02-xx [QCU] 420 VAX 11/750, VAX 11/780 [dmr] 421 descended from 4.1c BSD [dmr] 422 descended from 4.1 BSD [44B] 423 scooping-out and replacement of the character-device 424 and networking part by the streams mechanism 425 426Ninth Edition 1986-09-xx [QCU] 427Tenth Edition 1989-10-xx [QCU] 428 4291BSD late 1977 430 1978-03-09 [QCU] 431 PDP-11, Pascal, ex(1) 432 30 free copies of 1BSD sent out 433 35 tapes sold for 50 USD [QCU] 4342BSD mid 1978 [QCU] 1979-05-10 [TUHS] 435 75 2BSD tapes shipped 4362.79BSD 1980-04-xx [TUHS] 4372.8BSD 1981-07-xx [KSJ] 438 4392.8.1BSD 1982-01-xx [QCU] 440 set of performance improvements 4412.9BSD 1983-07-xx [KSJ] 4422.9.1BSD 1983-11-xx [TUHS] 4432.9BSD-Seismo 1985-08-xx [SMS] 4442.10BSD 1987-04-xx [KKK] 4452.10.1BSD 1989-01-xx [SMS] 4462.11BSD 1992-02-xx [SMS] 4472.11BSD rev #430 1999-12-13 [SMS] 448 44932V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4503BSD late 1979 [QCU] March 1980 [TUHS] 451 virtual memory, page replacement, 452 demand paging 4534.0BSD 1980-10-xx 4544.1BSD 1981-07-08 [DOC] 4554.1aBSD 1982-04-xx 456 alpha release, 100 sites, networking [44B] 4574.1bBSD internal release, fast filesystem [44B] 4584.1cBSD late 1982 459 beta release, IPC [44B] 4604.2BSD 1983-09-xx [QCU] 461 1983-08-03 [DOC] 4624.3BSD 1986-06-xx [QCU] 463 1986-04-05 [KB], [DOC] 4644.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4654.3BSD NET/1 1988-11-xx [QCU] 466 1989-01-01 [DOC] 4674.3BSD Reno 1990-06-29 [QCU], [DOC] 4684.3BSD NET/2 1991-06-28 [QCU], [DOC] 469 470BSD/386 ALPHA 1991-12-xx [BSDI] 471 first code released to people outside BSDI 472386BSD 0.0 1992-02-xx [DOC] 473BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 474BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 475386BSD 0.1 1992-07-28 [DOC] 4764.4BSD Alpha 1992-07-07 477BSD/386 0.9.3 1992-10-xx [BSDI] 478 first external gamma; G customers 479BSD/386 0.9.4 1992-12-xx [BSDI] 480 would have been 1.0 except for request 481 for preliminary injunction 482BSD/386 1.0 1993-03-xx [BSDI] 483 injunction denied; first official release 484NetBSD 0.8 1993-04-20 [NBD] 4854.4BSD 1993-06-01 [USE] 486NetBSD 0.9 1993-08-23 [NBD] 487FreeBSD 1.0 1993-11-01 [FBD] 488FreeBSD 1.0.2 1993-11-14 [FBD] 489 supersedes 1.0 13 days after release. 490BSD/386 1.1 1994-02-xx [BSDI] 4914.4BSD Lite 1994-03-01 [USE] 492FreeBSD 1.1 1994-05-07 [FBD] 493FreeBSD 1.1.5 1994-06-30 [FBD] 494FreeBSD 1.1.5.1 1994-07-05 [FBD] 495 supersedes 1.1.5 5 days after release. 496NetBSD 1.0 1994-10-26 [NBD] 497386BSD 1.0 1994-11-12 [USE] 498FreeBSD 2.0 1994-11-23 [FBD] 499BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 500FreeBSD 2.0.5 1995-06-10 [FBD] 501BSD/OS 2.0.1 1995-06-xx [BSDI] 5024.4BSD Lite Release 2 1995-06-xx [44B] 503 the true final distribution from the CSRG 504FreeBSD 2.1.0 1995-11-19 [FBD] 505NetBSD 1.1 1995-11-26 [NBD] 506BSD/OS 2.1 1996-01-xx [BSDI] 507FreeBSD 2.1.5 1996-07-14 [FBD] 508NetBSD 1.2 1996-10-04 [NBD] 509OpenBSD 2.0 1996-10-18 [OBD] 510FreeBSD 2.1.6 1996-11-16 [FBD] 511FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 512Rhapsody 1997-xx-xx 513FreeBSD 2.1.7 1997-02-20 [FBD] 514BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 515FreeBSD 2.2.0 1997-03-16 [FBD] 516FreeBSD 2.2.1 1997-03-25 [FBD] 517FreeBSD 2.2.2 1997-05-16 [FBD] 518NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 519OpenBSD 2.1 1997-06-01 [OBD] 520FreeBSD 2.2.5 1997-10-22 [FBD] 521OpenBSD 2.2 1997-12-01 [OBD] 522NetBSD 1.3 1998-01-04 [NBD] 523FreeBSD 2.2.6 1998-03-25 [FBD] 524NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 525BSD/OS 3.1 1998-03-xx [BSDI] 526OpenBSD 2.3 1998-05-19 [OBD] 527NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 528FreeBSD 2.2.7 1998-07-22 [FBD] 529BSD/OS 4.0 1998-08-xx [BSDI] 530 2-lock MP support, ELF executables 531FreeBSD 3.0 1998-10-16 [FBD] 532 FreeBSD-3.0 is a snapshot from -current, 533 while 3.1 and 3.2 are from 3.x-stable which 534 was branched quite some time after 3.0-release 535FreeBSD 2.2.8 1998-11-29 [FBD] 536OpenBSD 2.4 1998-12-01 [OBD] 537NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 538FreeBSD 3.1 1999-02-15 [FBD] 539BSD/OS 4.0.1 1999-03-xx [BSDI] 540NetBSD 1.4 1999-05-12 [NBD] 541FreeBSD 3.2 1999-05-17 [FBD] 542OpenBSD 2.5 1999-05-19 [OBD] 543NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 544FreeBSD 3.3 1999-09-17 [FBD] 545OpenBSD 2.6 1999-12-01 [OBD] 546FreeBSD 3.4 1999-12-20 [FBD] 547BSD/OS 4.1 1999-12-xx [BSDI] 548FreeBSD 4.0 2000-03-13 [FBD] 549NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 550OpenBSD 2.7 2000-06-15 [OBD] 551FreeBSD 3.5 2000-06-24 [FBD] 552FreeBSD 4.1 2000-07-27 [FBD] 553FreeBSD 3.5.1 2000-07-28 [FBD] 554FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 555FreeBSD 4.2 2000-11-21 [FBD] 556NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 557BSD/OS 4.2 2000-11-29 [BSDI] 558OpenBSD 2.8 2000-12-01 [OBD] 559NetBSD 1.5 2000-12-06 [NBD] 560Mac OS X 10.0 2001-03-24 [APL] 561FreeBSD 4.3 2001-04-20 [FBD] 562OpenBSD 2.9 2001-06-01 [OBD] 563NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 564NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 565FreeBSD 4.4 2001-09-18 [FBD] 566Mac OS X 10.1 2001-09-29 [APL] 567OpenBSD 3.0 2001-12-01 [OBD] 568FreeBSD 4.5 2002-01-29 [FBD] 569BSD/OS 4.3 2002-03-14 [WRS] 570OpenBSD 3.1 2002-05-19 [OBD] 571FreeBSD 4.6 2002-06-15 [FBD] 572NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 573FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 574Mac OS X 10.2 2002-08-23 [APL] 575NetBSD 1.6 2002-09-14 [NBD] 576FreeBSD 4.7 2002-10-08 [FBD] 577OpenBSD 3.2 2002-11-01 [OBD] 578FreeBSD 5.0 2003-01-17 [FBD] 579 FreeBSD 5.0 is a separate branch off of 580 -current, similar to 3.0. 581FreeBSD 4.8 2003-04-03 [FBD] 582NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 583OpenBSD 3.3 2003-05-01 [OBD] 584BSD/OS 5.0 2003-05-?? [WRS] 585FreeBSD 5.1 2003-06-09 [FBD] 586Mac OS X 10.3 2003-10-24 [APL] 587FreeBSD 4.9 2003-10-28 [FBD] 588BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 589OpenBSD 3.4 2003-11-01 [OBD] 590FreeBSD 5.2 2004-01-12 [FBD] 591FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 592NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 593OpenBSD 3.5 2004-04-01 [OBD] 594FreeBSD 4.10 2004-05-27 [FBD] 595DragonFly 1.0 2004-07-12 [DFB] 596OpenBSD 3.6 2004-10-29 [OBD] 597FreeBSD 5.3 2004-11-06 [FBD] 598NetBSD 2.0 2004-12-09 [NBD] 599FreeBSD 4.11 2005-01-25 [FBD] 600DragonFly 1.2.0 2005-04-08 [DFB] 601NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 602Mac OS X 10.4 2005-04-29 [APL] 603FreeBSD 5.4 2005-05-09 [FBD] 604OpenBSD 3.7 2005-05-19 [OBD] 605NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 606OpenBSD 3.8 2005-11-01 [OBD] 607FreeBSD 6.0 2005-11-01 [FBD] 608NetBSD 2.1 2005-11-02 [NBD] 609NetBSD 3.0 2005-12-23 [NBD] 610DragonFly 1.4.0 2006-01-08 [DFB] 611FreeBSD 2.2.9 2006-04-01 [FBD] 612OpenBSD 3.9 2006-05-01 [OBD] 613FreeBSD 6.1 2006-05-08 [FBD] 614FreeBSD 5.5 2006-05-25 [FBD] 615NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 616DragonFly 1.6.0 2006-07-24 [DFB] 617OpenBSD 4.0 2006-11-01 [OBD] 618NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 619NetBSD 3.1 2006-11-04 [NBD] 620FreeBSD 6.2 2007-01-15 [FBD] 621DragonFly 1.8.0 2007-01-30 [DFB] 622OpenBSD 4.1 2007-05-01 [OBD] 623DragonFly 1.10.0 2007-08-06 [DFB] 624Mac OS X 10.5 2007-10-26 [APL] 625OpenBSD 4.2 2007-11-01 [OBD] 626NetBSD 4.0 2007-12-19 [NBD] 627FreeBSD 6.3 2008-01-18 [FBD] 628DragonFly 1.12.0 2008-02-26 [DFB] 629FreeBSD 7.0 2008-02-27 [FBD] 630OpenBSD 4.3 2008-05-01 [OBD] 631DragonFly 2.0.0 2008-07-21 [DFB] 632OpenBSD 4.4 2008-11-01 [OBD] 633FreeBSD 6.4 2008-11-28 [FBD] 634FreeBSD 7.1 2009-01-04 [FBD] 635DragonFly 2.2.0 2009-02-17 [DFB] 636NetBSD 5.0 2009-04-29 [NBD] 637OpenBSD 4.5 2009-05-01 [OBD] 638FreeBSD 7.2 2009-05-04 [FBD] 639Mac OS X 10.6 2009-06-08 [APL] 640NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 641DragonFly 2.4.0 2009-09-16 [DFB] 642OpenBSD 4.6 2009-10-18 [OBD] 643FreeBSD 8.0 2009-11-26 [FBD] 644NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 645FreeBSD 7.3 2010-03-23 [FBD] 646DragonFly 2.6.0 2010-03-28 [DFB] 647OpenBSD 4.7 2010-05-19 [OBD] 648FreeBSD 8.1 2010-07-24 [FBD] 649DragonFly 2.8.2 2010-10-30 [DFB] 650OpenBSD 4.8 2010-11-01 [OBD] 651NetBSD 5.1 2010-11-19 [NBD] 652FreeBSD 7.4 2011-02-24 [FBD] 653FreeBSD 8.2 2011-02-24 [FBD] 654DragonFly 2.10.1 2011-04-26 [DFB] 655OpenBSD 4.9 2011-05-01 [OBD] 656Mac OS X 10.7 2011-07-20 [APL] 657OpenBSD 5.0 2011-11-01 [OBD] 658FreeBSD 9.0 2012-01-12 [FBD] 659NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 660DragonFly 3.0.1 2012-02-21 [DFB] 661FreeBSD 8.3 2012-04-18 [FBD] 662OpenBSD 5.1 2012-05-01 [OBD] 663Mac OS X 10.8 2012-07-25 [APL] 664NetBSD 6.0 2012-10-17 [NBD] 665OpenBSD 5.2 2012-11-01 [OBD] 666DragonFly 3.2.1 2012-11-02 [DFB] 667NetBSD 5.2 2012-12-03 [NBD] 668NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 669FreeBSD 9.1 2012-12-30 [FBD] 670DragonFly 3.4.1 2013-04-29 [DFB] 671OpenBSD 5.3 2013-05-01 [OBD] 672NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 673NetBSD 6.1 2013-05-18 [NBD] 674FreeBSD 8.4 2013-06-07 [FBD] 675NetBSD 6.1.1 2013-08-22 [NBD] 676NetBSD 5.1.3 2013-09-29 [NBD] 677NetBSD 5.2.1 2013-09-29 [NBD] 678FreeBSD 9.2 2013-09-30 [FBD] 679NetBSD 6.0.3 2013-09-30 [NBD] 680NetBSD 6.1.2 2013-09-30 [NBD] 681Mac OS X 10.9 2013-10-22 [APL] 682OpenBSD 5.4 2013-11-01 [OBD] 683DragonFly 3.6.0 2013-11-25 [DFB] 684FreeBSD 10.0 2014-01-20 [FBD] 685NetBSD 5.1.4 2014-01-25 [NBD] 686NetBSD 5.2.2 2014-01-25 [NBD] 687NetBSD 6.0.4 2014-01-25 [NBD] 688NetBSD 6.1.3 2014-01-25 [NBD] 689DragonFly 3.6.1 2014-02-22 [DFB] 690DragonFly 3.6.2 2014-04-10 [DFB] 691NetBSD 6.0.5 2014-04-12 [NDB] 692NetBSD 6.1.4 2014-04-12 [NDB] 693OpenBSD 5.5 2014-05-01 [OBD] 694DragonFly 3.8.0 2014-06-04 [DFB] 695DragonFly 3.8.1 2014-06-16 [DFB] 696DragonFly 3.6.3 2014-06-17 [DFB] 697FreeBSD 9.3 2014-07-05 [FBD] 698DragonFly 3.8.2 2014-08-08 [DFB] 699NetBSD 6.1.5 2014-09-22 [NBD] 700Mac OS X 10.10 2014-10-16 [APL] 701OpenBSD 5.6 2014-11-01 [OBD] 702FreeBSD 10.1 2014-11-14 [FBD] 703DragonFly 4.0.1 2014-11-25 [DFB] 704DragonFly 4.0.2 2015-01-07 [DFB] 705DragonFly 4.0.3 2015-01-21 [DFB] 706DragonFly 4.0.4 2015-03-09 [DFB] 707DragonFly 4.0.5 2015-03-23 [DFB] 708OpenBSD 5.7 2015-05-01 [OBD] 709DragonFly 4.2.0 2015-06-29 [DFB] 710FreeBSD 10.2 2015-08-13 [FBD] 711NetBSD 7.0 2015-09-25 [NBD] 712OS X 10.11 2015-09-30 [APL] 713OpenBSD 5.8 2015-10-18 [OBD] 714DragonFly 4.4.1 2015-12-07 [DFB] 715OpenBSD 5.9 2016-03-29 [OBD] 716FreeBSD 10.3 2016-04-04 [FBD] 717NetBSD 7.0.1 2016-05-22 [NBD] 718DragonFly 4.6.0 2016-08-02 [DFB] 719OpenBSD 6.0 2016-09-01 [OBD] 720macOS 10.12 2016-09-20 [APL] 721NetBSD 7.0.2 2016-10-21 [NBD] 722FreeBSD 11.0 2016-10-10 [FBD] 723NetBSD 7.1 2017-03-11 [NBD] 724DragonFly 4.8.0 2017-03-27 [DFB] 725OpenBSD 6.1 2017-04-11 [OBD] 726FreeBSD 11.1 2017-07-26 [FBD] 727macOS 10.13 2017-09-25 [APL] 728FreeBSD 10.4 2017-10-03 [FBD] 729OpenBSD 6.2 2017-10-09 [OBD] 730DragonFly 5.0.0 2017-10-16 [DFB] 731DragonFly 5.0.1 2017-11-06 [DFB] 732DragonFly 5.0.2 2017-12-04 [DFB] 733 734Bibliography 735------------------------ 736 737Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 738Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 739System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 740 741Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 742Company, Inc., 1994. ISBN 0-201-54777-5 743 744McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 745Quarterman. The Design and Implementation of the 4.4BSD Operating 746System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 747 748McKusick, Marshall Kirk, George Neville-Neil. The Design and 749Implementation of the FreeBSD Operating System. 750Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 751 752McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 753Design and Implementation of the FreeBSD Operating System, 2nd Edition. 754Pearson Education, Inc., 2014. ISBN 0-321-96897-2 755 756Doug McIlroy. Research Unix Reader. 757 758Michael G. Brown. The Role of BSD in the Development of Unix. 759Presented to the Tasmanian Unix Special Interest Group of the 760Australian Computer Society, Hobart, August 1993. 761 762Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 763URL: http://www.byte.com/art/9410/sec8/art3.htm 764 765Andreas Klemm, Lars Köller. If you're going to San Francisco ... 766Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 767 768BSD Release Announcements collection. 769URL: https://www.FreeBSD.org/releases/ 770 771BSD Hypertext Man Pages 772URL: https://www.FreeBSD.org/cgi/man.cgi 773 774UNIX history graphing project 775URL: http://minnie.tuhs.org/Unix_History/index.html 776 777UNIX history 778URL: http://www.levenez.com/unix/ 779 780James Howard: The BSD Family Tree 781URL: http://ezine.daemonnews.org/200104/bsd_family.html 782("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 783 784 785Acknowledgments 786--------------- 787 788Josh Gilliam for suggestions, bug fixes, and finding very old 789original BSD announcements from Usenet or tapes. 790 791Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 792 793-- 794Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 795URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 796 797$FreeBSD: head/share/misc/bsd-family-tree 326724 2017-12-09 05:05:25Z imp $ 798$NetBSD: bsd-family-tree,v 1.63 2017/12/15 04:10:49 riastradh Exp $ 799