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 | | | | DragonFly 5.0.0 358 | 11.1 FreeBSD | | | | 359 | | 10.4 | | OpenBSD 6.2 DragonFly 5.0.1 360 | | | | | | 361 | | | | | DragonFly 5.0.2 362 | | | | | | 363 | | | | | | 364 | v | | | | 365 | | | | | 366FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current 367 | | | | | 368 v v v v v 369 370Time 371---------------- 372 373Time tolerance +/- 6 months, depending on which book/article you read; if it 374was the announcement in Usenet or if it was available as tape. 375 376[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 377 and John Quarterman. The Design and Implementation of 378 the 4.4BSD Operating System. 379[APL] Apple website [https://www.apple.com/macosx/] 380[BSDI] Berkeley Software Design, Inc. 381[DFB] DragonFlyBSD Project, The. 382[DOC] README, COPYRIGHT on tape. 383[FBD] FreeBSD Project, The. 384[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 385 Volume 11, Info 4, April, 1987. 386[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 387 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 388[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 389 Changes in the Kernel in 2.9BSD. Second Berkeley Software 390 Distribution UNIX Version 2.9, July, 1983. 391[NBD] NetBSD Project, The. 392[OBD] OpenBSD Project, The. 393[QCU] Salus, Peter H. A quarter century of UNIX. 394[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 395[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 396[USE] Usenet announcement. 397[WRS] Wind River Systems, Inc. 398[dmr] Dennis Ritchie, via E-Mail 399 400Multics 1965 401UNIX Summer 1969 402 DEC PDP-7 403First Edition 1971-11-03 [QCU] 404 DEC PDP-11/20, Assembler 405Second Edition 1972-06-12 [QCU] 406 10 UNIX installations 407Third Edition 1973-02-xx [QCU] 408 Pipes, 16 installations 409Fourth Edition 1973-11-xx [QCU] 410 rewriting in C effected, 411 above 30 installations 412Fifth Edition 1974-06-xx [QCU] 413 above 50 installations 414Sixth Edition 1975-05-xx [QCU] 415 port to DEC Vax 416Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 417 first portable UNIX 418Eighth Edition 1985-02-xx [QCU] 419 VAX 11/750, VAX 11/780 [dmr] 420 descended from 4.1c BSD [dmr] 421 descended from 4.1 BSD [44B] 422 scooping-out and replacement of the character-device 423 and networking part by the streams mechanism 424 425Ninth Edition 1986-09-xx [QCU] 426Tenth Edition 1989-10-xx [QCU] 427 4281BSD late 1977 429 1978-03-09 [QCU] 430 PDP-11, Pascal, ex(1) 431 30 free copies of 1BSD sent out 432 35 tapes sold for 50 USD [QCU] 4332BSD mid 1978 [QCU] 1979-05-10 [TUHS] 434 75 2BSD tapes shipped 4352.79BSD 1980-04-xx [TUHS] 4362.8BSD 1981-07-xx [KSJ] 437 4382.8.1BSD 1982-01-xx [QCU] 439 set of performance improvements 4402.9BSD 1983-07-xx [KSJ] 4412.9.1BSD 1983-11-xx [TUHS] 4422.9BSD-Seismo 1985-08-xx [SMS] 4432.10BSD 1987-04-xx [KKK] 4442.10.1BSD 1989-01-xx [SMS] 4452.11BSD 1992-02-xx [SMS] 4462.11BSD rev #430 1999-12-13 [SMS] 447 44832V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4493BSD late 1979 [QCU] March 1980 [TUHS] 450 virtual memory, page replacement, 451 demand paging 4524.0BSD 1980-10-xx 4534.1BSD 1981-07-08 [DOC] 4544.1aBSD 1982-04-xx 455 alpha release, 100 sites, networking [44B] 4564.1bBSD internal release, fast filesystem [44B] 4574.1cBSD late 1982 458 beta release, IPC [44B] 4594.2BSD 1983-09-xx [QCU] 460 1983-08-03 [DOC] 4614.3BSD 1986-06-xx [QCU] 462 1986-04-05 [KB], [DOC] 4634.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4644.3BSD NET/1 1988-11-xx [QCU] 465 1989-01-01 [DOC] 4664.3BSD Reno 1990-06-29 [QCU], [DOC] 4674.3BSD NET/2 1991-06-28 [QCU], [DOC] 468 469BSD/386 ALPHA 1991-12-xx [BSDI] 470 first code released to people outside BSDI 471386BSD 0.0 1992-02-xx [DOC] 472BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 473BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 474386BSD 0.1 1992-07-28 [DOC] 4754.4BSD Alpha 1992-07-07 476BSD/386 0.9.3 1992-10-xx [BSDI] 477 first external gamma; G customers 478BSD/386 0.9.4 1992-12-xx [BSDI] 479 would have been 1.0 except for request 480 for preliminary injunction 481BSD/386 1.0 1993-03-xx [BSDI] 482 injunction denied; first official release 483NetBSD 0.8 1993-04-20 [NBD] 4844.4BSD 1993-06-01 [USE] 485NetBSD 0.9 1993-08-23 [NBD] 486FreeBSD 1.0 1993-11-01 [FBD] 487FreeBSD 1.0.2 1993-11-14 [FBD] 488 supersedes 1.0 13 days after release. 489BSD/386 1.1 1994-02-xx [BSDI] 4904.4BSD Lite 1994-03-01 [USE] 491FreeBSD 1.1 1994-05-07 [FBD] 492FreeBSD 1.1.5 1994-06-30 [FBD] 493FreeBSD 1.1.5.1 1994-07-05 [FBD] 494 supersedes 1.1.5 5 days after release. 495NetBSD 1.0 1994-10-26 [NBD] 496386BSD 1.0 1994-11-12 [USE] 497FreeBSD 2.0 1994-11-23 [FBD] 498BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 499FreeBSD 2.0.5 1995-06-10 [FBD] 500BSD/OS 2.0.1 1995-06-xx [BSDI] 5014.4BSD Lite Release 2 1995-06-xx [44B] 502 the true final distribution from the CSRG 503FreeBSD 2.1.0 1995-11-19 [FBD] 504NetBSD 1.1 1995-11-26 [NBD] 505BSD/OS 2.1 1996-01-xx [BSDI] 506FreeBSD 2.1.5 1996-07-14 [FBD] 507NetBSD 1.2 1996-10-04 [NBD] 508OpenBSD 2.0 1996-10-18 [OBD] 509FreeBSD 2.1.6 1996-11-16 [FBD] 510FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 511Rhapsody 1997-xx-xx 512FreeBSD 2.1.7 1997-02-20 [FBD] 513BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 514FreeBSD 2.2.0 1997-03-16 [FBD] 515FreeBSD 2.2.1 1997-03-25 [FBD] 516FreeBSD 2.2.2 1997-05-16 [FBD] 517NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 518OpenBSD 2.1 1997-06-01 [OBD] 519FreeBSD 2.2.5 1997-10-22 [FBD] 520OpenBSD 2.2 1997-12-01 [OBD] 521NetBSD 1.3 1998-01-04 [NBD] 522FreeBSD 2.2.6 1998-03-25 [FBD] 523NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 524BSD/OS 3.1 1998-03-xx [BSDI] 525OpenBSD 2.3 1998-05-19 [OBD] 526NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 527FreeBSD 2.2.7 1998-07-22 [FBD] 528BSD/OS 4.0 1998-08-xx [BSDI] 529 2-lock MP support, ELF executables 530FreeBSD 3.0 1998-10-16 [FBD] 531 FreeBSD-3.0 is a snapshot from -current, 532 while 3.1 and 3.2 are from 3.x-stable which 533 was branched quite some time after 3.0-release 534FreeBSD 2.2.8 1998-11-29 [FBD] 535OpenBSD 2.4 1998-12-01 [OBD] 536NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 537FreeBSD 3.1 1999-02-15 [FBD] 538BSD/OS 4.0.1 1999-03-xx [BSDI] 539NetBSD 1.4 1999-05-12 [NBD] 540FreeBSD 3.2 1999-05-17 [FBD] 541OpenBSD 2.5 1999-05-19 [OBD] 542NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 543FreeBSD 3.3 1999-09-17 [FBD] 544OpenBSD 2.6 1999-12-01 [OBD] 545FreeBSD 3.4 1999-12-20 [FBD] 546BSD/OS 4.1 1999-12-xx [BSDI] 547FreeBSD 4.0 2000-03-13 [FBD] 548NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 549OpenBSD 2.7 2000-06-15 [OBD] 550FreeBSD 3.5 2000-06-24 [FBD] 551FreeBSD 4.1 2000-07-27 [FBD] 552FreeBSD 3.5.1 2000-07-28 [FBD] 553FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 554FreeBSD 4.2 2000-11-21 [FBD] 555NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 556BSD/OS 4.2 2000-11-29 [BSDI] 557OpenBSD 2.8 2000-12-01 [OBD] 558NetBSD 1.5 2000-12-06 [NBD] 559Mac OS X 10.0 2001-03-24 [APL] 560FreeBSD 4.3 2001-04-20 [FBD] 561OpenBSD 2.9 2001-06-01 [OBD] 562NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 563NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 564FreeBSD 4.4 2001-09-18 [FBD] 565Mac OS X 10.1 2001-09-29 [APL] 566OpenBSD 3.0 2001-12-01 [OBD] 567FreeBSD 4.5 2002-01-29 [FBD] 568BSD/OS 4.3 2002-03-14 [WRS] 569OpenBSD 3.1 2002-05-19 [OBD] 570FreeBSD 4.6 2002-06-15 [FBD] 571NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 572FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 573Mac OS X 10.2 2002-08-23 [APL] 574NetBSD 1.6 2002-09-14 [NBD] 575FreeBSD 4.7 2002-10-08 [FBD] 576OpenBSD 3.2 2002-11-01 [OBD] 577FreeBSD 5.0 2003-01-17 [FBD] 578 FreeBSD 5.0 is a separate branch off of 579 -current, similar to 3.0. 580FreeBSD 4.8 2003-04-03 [FBD] 581NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 582OpenBSD 3.3 2003-05-01 [OBD] 583BSD/OS 5.0 2003-05-?? [WRS] 584FreeBSD 5.1 2003-06-09 [FBD] 585Mac OS X 10.3 2003-10-24 [APL] 586FreeBSD 4.9 2003-10-28 [FBD] 587BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 588OpenBSD 3.4 2003-11-01 [OBD] 589FreeBSD 5.2 2004-01-12 [FBD] 590FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 591NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 592OpenBSD 3.5 2004-04-01 [OBD] 593FreeBSD 4.10 2004-05-27 [FBD] 594DragonFly 1.0 2004-07-12 [DFB] 595OpenBSD 3.6 2004-10-29 [OBD] 596FreeBSD 5.3 2004-11-06 [FBD] 597NetBSD 2.0 2004-12-09 [NBD] 598FreeBSD 4.11 2005-01-25 [FBD] 599DragonFly 1.2.0 2005-04-08 [DFB] 600NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 601Mac OS X 10.4 2005-04-29 [APL] 602FreeBSD 5.4 2005-05-09 [FBD] 603OpenBSD 3.7 2005-05-19 [OBD] 604NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 605OpenBSD 3.8 2005-11-01 [OBD] 606FreeBSD 6.0 2005-11-01 [FBD] 607NetBSD 2.1 2005-11-02 [NBD] 608NetBSD 3.0 2005-12-23 [NBD] 609DragonFly 1.4.0 2006-01-08 [DFB] 610FreeBSD 2.2.9 2006-04-01 [FBD] 611OpenBSD 3.9 2006-05-01 [OBD] 612FreeBSD 6.1 2006-05-08 [FBD] 613FreeBSD 5.5 2006-05-25 [FBD] 614NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 615DragonFly 1.6.0 2006-07-24 [DFB] 616OpenBSD 4.0 2006-11-01 [OBD] 617NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 618NetBSD 3.1 2006-11-04 [NBD] 619FreeBSD 6.2 2007-01-15 [FBD] 620DragonFly 1.8.0 2007-01-30 [DFB] 621OpenBSD 4.1 2007-05-01 [OBD] 622DragonFly 1.10.0 2007-08-06 [DFB] 623Mac OS X 10.5 2007-10-26 [APL] 624OpenBSD 4.2 2007-11-01 [OBD] 625NetBSD 4.0 2007-12-19 [NBD] 626FreeBSD 6.3 2008-01-18 [FBD] 627DragonFly 1.12.0 2008-02-26 [DFB] 628FreeBSD 7.0 2008-02-27 [FBD] 629OpenBSD 4.3 2008-05-01 [OBD] 630DragonFly 2.0.0 2008-07-21 [DFB] 631OpenBSD 4.4 2008-11-01 [OBD] 632FreeBSD 6.4 2008-11-28 [FBD] 633FreeBSD 7.1 2009-01-04 [FBD] 634DragonFly 2.2.0 2009-02-17 [DFB] 635NetBSD 5.0 2009-04-29 [NBD] 636OpenBSD 4.5 2009-05-01 [OBD] 637FreeBSD 7.2 2009-05-04 [FBD] 638Mac OS X 10.6 2009-06-08 [APL] 639NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 640DragonFly 2.4.0 2009-09-16 [DFB] 641OpenBSD 4.6 2009-10-18 [OBD] 642FreeBSD 8.0 2009-11-26 [FBD] 643NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 644FreeBSD 7.3 2010-03-23 [FBD] 645DragonFly 2.6.0 2010-03-28 [DFB] 646OpenBSD 4.7 2010-05-19 [OBD] 647FreeBSD 8.1 2010-07-24 [FBD] 648DragonFly 2.8.2 2010-10-30 [DFB] 649OpenBSD 4.8 2010-11-01 [OBD] 650NetBSD 5.1 2010-11-19 [NBD] 651FreeBSD 7.4 2011-02-24 [FBD] 652FreeBSD 8.2 2011-02-24 [FBD] 653DragonFly 2.10.1 2011-04-26 [DFB] 654OpenBSD 4.9 2011-05-01 [OBD] 655Mac OS X 10.7 2011-07-20 [APL] 656OpenBSD 5.0 2011-11-01 [OBD] 657FreeBSD 9.0 2012-01-12 [FBD] 658NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 659DragonFly 3.0.1 2012-02-21 [DFB] 660FreeBSD 8.3 2012-04-18 [FBD] 661OpenBSD 5.1 2012-05-01 [OBD] 662Mac OS X 10.8 2012-07-25 [APL] 663NetBSD 6.0 2012-10-17 [NBD] 664OpenBSD 5.2 2012-11-01 [OBD] 665DragonFly 3.2.1 2012-11-02 [DFB] 666NetBSD 5.2 2012-12-03 [NBD] 667NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 668FreeBSD 9.1 2012-12-30 [FBD] 669DragonFly 3.4.1 2013-04-29 [DFB] 670OpenBSD 5.3 2013-05-01 [OBD] 671NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 672NetBSD 6.1 2013-05-18 [NBD] 673FreeBSD 8.4 2013-06-07 [FBD] 674NetBSD 6.1.1 2013-08-22 [NBD] 675NetBSD 5.1.3 2013-09-29 [NBD] 676NetBSD 5.2.1 2013-09-29 [NBD] 677FreeBSD 9.2 2013-09-30 [FBD] 678NetBSD 6.0.3 2013-09-30 [NBD] 679NetBSD 6.1.2 2013-09-30 [NBD] 680Mac OS X 10.9 2013-10-22 [APL] 681OpenBSD 5.4 2013-11-01 [OBD] 682DragonFly 3.6.0 2013-11-25 [DFB] 683FreeBSD 10.0 2014-01-20 [FBD] 684NetBSD 5.1.4 2014-01-25 [NBD] 685NetBSD 5.2.2 2014-01-25 [NBD] 686NetBSD 6.0.4 2014-01-25 [NBD] 687NetBSD 6.1.3 2014-01-25 [NBD] 688DragonFly 3.6.1 2014-02-22 [DFB] 689DragonFly 3.6.2 2014-04-10 [DFB] 690NetBSD 6.0.5 2014-04-12 [NDB] 691NetBSD 6.1.4 2014-04-12 [NDB] 692OpenBSD 5.5 2014-05-01 [OBD] 693DragonFly 3.8.0 2014-06-04 [DFB] 694DragonFly 3.8.1 2014-06-16 [DFB] 695DragonFly 3.6.3 2014-06-17 [DFB] 696FreeBSD 9.3 2014-07-05 [FBD] 697DragonFly 3.8.2 2014-08-08 [DFB] 698NetBSD 6.1.5 2014-09-22 [NBD] 699Mac OS X 10.10 2014-10-16 [APL] 700OpenBSD 5.6 2014-11-01 [OBD] 701FreeBSD 10.1 2014-11-14 [FBD] 702DragonFly 4.0.1 2014-11-25 [DFB] 703DragonFly 4.0.2 2015-01-07 [DFB] 704DragonFly 4.0.3 2015-01-21 [DFB] 705DragonFly 4.0.4 2015-03-09 [DFB] 706DragonFly 4.0.5 2015-03-23 [DFB] 707OpenBSD 5.7 2015-05-01 [OBD] 708DragonFly 4.2.0 2015-06-29 [DFB] 709FreeBSD 10.2 2015-08-13 [FBD] 710NetBSD 7.0 2015-09-25 [NBD] 711OS X 10.11 2015-09-30 [APL] 712OpenBSD 5.8 2015-10-18 [OBD] 713DragonFly 4.4.1 2015-12-07 [DFB] 714OpenBSD 5.9 2016-03-29 [OBD] 715FreeBSD 10.3 2016-04-04 [FBD] 716NetBSD 7.0.1 2016-05-22 [NBD] 717DragonFly 4.6.0 2016-08-02 [DFB] 718OpenBSD 6.0 2016-09-01 [OBD] 719macOS 10.12 2016-09-20 [APL] 720NetBSD 7.0.2 2016-10-21 [NBD] 721FreeBSD 11.0 2016-10-10 [FBD] 722NetBSD 7.1 2017-03-11 [NBD] 723DragonFly 4.8.0 2017-03-27 [DFB] 724OpenBSD 6.1 2017-04-11 [OBD] 725FreeBSD 11.1 2017-07-26 [FBD] 726macOS 10.13 2017-09-25 [APL] 727FreeBSD 10.4 2017-10-03 [FBD] 728OpenBSD 6.2 2017-10-09 [OBD] 729DragonFly 5.0.0 2017-10-16 [DFB] 730DragonFly 5.0.1 2017-11-06 [DFB] 731DragonFly 5.0.2 2017-12-04 [DFB] 732 733Bibliography 734------------------------ 735 736Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 737Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 738System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 739 740Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 741Company, Inc., 1994. ISBN 0-201-54777-5 742 743McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 744Quarterman. The Design and Implementation of the 4.4BSD Operating 745System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 746 747McKusick, Marshall Kirk, George Neville-Neil. The Design and 748Implementation of the FreeBSD Operating System. 749Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 750 751McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 752Design and Implementation of the FreeBSD Operating System, 2nd Edition. 753Pearson Education, Inc., 2014. ISBN 0-321-96897-2 754 755Doug McIlroy. Research Unix Reader. 756 757Michael G. Brown. The Role of BSD in the Development of Unix. 758Presented to the Tasmanian Unix Special Interest Group of the 759Australian Computer Society, Hobart, August 1993. 760 761Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 762URL: http://www.byte.com/art/9410/sec8/art3.htm 763 764Andreas Klemm, Lars Köller. If you're going to San Francisco ... 765Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 766 767BSD Release Announcements collection. 768URL: https://www.FreeBSD.org/releases/ 769 770BSD Hypertext Man Pages 771URL: https://www.FreeBSD.org/cgi/man.cgi 772 773UNIX history graphing project 774URL: http://minnie.tuhs.org/Unix_History/index.html 775 776UNIX history 777URL: http://www.levenez.com/unix/ 778 779James Howard: The BSD Family Tree 780URL: http://ezine.daemonnews.org/200104/bsd_family.html 781("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 782 783 784Acknowledgments 785--------------- 786 787Josh Gilliam for suggestions, bug fixes, and finding very old 788original BSD announcements from Usenet or tapes. 789 790Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 791 792-- 793Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 794URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 795 796$FreeBSD: head/share/misc/bsd-family-tree 326724 2017-12-09 05:05:25Z imp $ 797$NetBSD: bsd-family-tree,v 1.62 2017/12/14 10:34:06 maya Exp $ 798