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 | v | | | | | | 114 | FreeBSD 2.2.8 | | | | | | 115 | | | | | OpenBSD 2.4 | 116FreeBSD 3.0 <--------* | | v | | 117 | | | NetBSD 1.3.3 | | 118 *---FreeBSD 3.1 | | | | 119 | | | | | BSD/OS 4.0.1 120 | FreeBSD 3.2----* | NetBSD 1.4 OpenBSD 2.5 | 121 | | | | | | | | | 122 | | | | | | | | | 123 | | | | | | | | | 124 | FreeBSD 3.3 | | | | NetBSD 1.4.1 | | 125 | | | | | | | OpenBSD 2.6 | 126 | FreeBSD 3.4 | | | | | | | 127 | | | | | | | | BSD/OS 4.1 128FreeBSD 4.0 | | | | | NetBSD 1.4.2 | | 129 | | | | | | | | | 130 | | | | | | | | | 131 | FreeBSD 3.5 | | | | | OpenBSD 2.7 | 132 | | | | | | | | | 133 | FreeBSD 3.5.1 | | | | | | | 134 | | | | | | | | 135 *---FreeBSD 4.1 | | | | | | | 136 | | | | (?) | | | | 137 | FreeBSD 4.1.1 | | / | | | | 138 | | | | / | | | | 139 | FreeBSD 4.2 Darwin/ | NetBSD 1.4.3 | | 140 | | Mac OS X | OpenBSD 2.8 BSD/OS 4.2 141 | | | | | | 142 | | | | | | 143 | | 10.0 NetBSD 1.5 | | 144 | FreeBSD 4.3 | | | | | 145 | | | | | OpenBSD 2.9 | 146 | | | | NetBSD 1.5.1 | | 147 | | | | | | | 148 | FreeBSD 4.4-. | | NetBSD 1.5.2 | | 149 | | | Mac OS X | | | | 150 | | | 10.1 | | OpenBSD 3.0 | 151 | FreeBSD 4.5 | | | | | | 152 | | \ | | | | BSD/OS 4.3 153 | FreeBSD 4.6 \ | | | OpenBSD 3.1 | 154 | | \ | | NetBSD 1.5.3 | | 155 | FreeBSD 4.6.2 Mac OS X | | | 156 | | 10.2 | | | 157 | FreeBSD 4.7 | | | | 158 | | | NetBSD 1.6 OpenBSD 3.2 | 159 | FreeBSD 4.8 | | | | | 160 | | | | NetBSD 1.6.1 | | 161 | |--------. | | | OpenBSD 3.3 BSD/OS 5.0 162 | | \ | | | | | 163 | FreeBSD 4.9 | | | | OpenBSD 3.4 BSD/OS 5.1 ISE 164 | | | | | | | 165 | | | | | NetBSD 1.6.2 | 166 | | | | | | | 167 | | | | | | OpenBSD 3.5 168 | | | | | v | 169 | FreeBSD 4.10 | | | | 170 | | | | | | 171 | FreeBSD 4.11 | | | | 172 | | | | | 173 | `-|------|-----------------|---------------------. 174 | | | | \ 175FreeBSD 5.0 | | | | 176 | | | | | 177FreeBSD 5.1 | | | DragonFly 1.0 178 | \ | | | | 179 | ----- Mac OS X | | | 180 | 10.3 | | | 181FreeBSD 5.2 | | | | 182 | | | | | | 183 | FreeBSD 5.2.1 | | | | 184 | | | | | 185 *-------FreeBSD 5.3 | | | | 186 | | | | OpenBSD 3.6 | 187 | | | NetBSD 2.0 | | 188 | | | | | | | DragonFly 1.2.0 189 | | Mac OS X | | NetBSD 2.0.2 | | 190 | | 10.4 | | | | | 191 | FreeBSD 5.4 | | | | | | 192 | | | | | | OpenBSD 3.7 | 193 | | | | | NetBSD 2.0.3 | | 194 | | | | | | | | 195 *--FreeBSD | | | | v OpenBSD 3.8 | 196 | 6.0 | | | | | | 197 | | | | | \ | | 198 | | | | | NetBSD 2.1 | | 199 | | | | | | | 200 | | | | NetBSD 3.0 | | 201 | | | | | | | | DragonFly 1.4.0 202 | | | | | | | OpenBSD 3.9 | 203 | FreeBSD | | | | | | | 204 | 6.1 | | | | | | | 205 | | FreeBSD 5.5 | | | | | | 206 | | | | | NetBSD 3.0.1 | DragonFly 1.6.0 207 | | | | | | | | 208 | | | | | | OpenBSD 4.0 | 209 | | | | | NetBSD 3.0.2 | | 210 | | | | NetBSD 3.1 | | 211 | FreeBSD 6.2 | | | | 212 | | | | | DragonFly 1.8.0 213 | | | | OpenBSD 4.1 | 214 | | | | | DragonFly 1.10.0 215 | | Mac OS X | | | 216 | | 10.5 | | | 217 | | | | OpenBSD 4.2 | 218 | | | NetBSD 4.0 | | 219 | FreeBSD 6.3 | | | | | 220 | \ | | | | | 221 *--FreeBSD | | | | | DragonFly 1.12.0 222 | 7.0 | | | | | | 223 | | | | | | OpenBSD 4.3 | 224 | | | | | NetBSD | DragonFly 2.0.0 225 | | FreeBSD | | 4.0.1 OpenBSD 4.4 | 226 | | 6.4 | | | | 227 | | | | | | 228 | FreeBSD 7.1 | | | | 229 | | | | | DragonFly 2.2.0 230 | FreeBSD 7.2 | NetBSD 5.0 OpenBSD 4.5 | 231 | \ | | | \ | | 232 | | Mac OS X | | \ | | 233 | | 10.6 | | \ | | 234 | | | | | NetBSD | DragonFly 2.4.0 235 | | | | | 5.0.1 OpenBSD 4.6 | 236 | | | | | | | | 237 *--FreeBSD | | | | | | | 238 | 8.0 | | | | | | | 239 | | FreeBSD | | | NetBSD | | 240 | | 7.3 | | | 5.0.2 | DragonFly 2.6.0 241 | | | | | | OpenBSD 4.7 | 242 | FreeBSD | | | | | | 243 | 8.1 | | | | | | 244 | | | | | | | DragonFly 2.8.2 245 | | | | | | OpenBSD 4.8 | 246 | | | | | *--NetBSD | | 247 | FreeBSD FreeBSD | | | 5.1 | | 248 | 8.2 7.4 | | | | | DragonFly 2.10.1 249 | | | | | | OpenBSD 4.9 | 250 | `-----. Mac OS X | | | | | 251 | \ 10.7 | | | | | 252 | | | | | | OpenBSD 5.0 | 253 *--FreeBSD | | | | | | | 254 | 9.0 | | | | NetBSD | DragonFly 3.0.1 255 | | FreeBSD | | | 5.1.2 | | 256 | | 8.3 | | | OpenBSD 5.1 | 257 | | | Mac OS X | `----. | | 258 | | | 10.8 | \ | | 259 | | | | NetBSD 6.0 | | | 260 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 261 | FreeBSD | | | | | NetBSD | | 262 | 9.1 | | | | | 5.2 | | 263 | | | | | \ | | 264 | | | | | NetBSD | | 265 | | | | | 6.0.1 | | 266 | | | | | | OpenBSD 5.3 DragonFly 3.4.1 267 | | | | | NetBSD | | 268 | | | | | 6.0.2 | | 269 | | | | | | | 270 | | | | `-NetBSD 6.1 | | 271 | FreeBSD | | | | 272 | 8.4 | | | | 273 | | | | | 274 | | | | | 275 | | | | | 276FreeBSD 10 -current | NetBSD -current OpenBSD -current | 277 | | | | | 278 v v v v v 279 280Time 281---------------- 282 283Time tolerance +/- 6 months, depending on which book/article you read; if it 284was the announcement in Usenet or if it was available as tape. 285 286[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 287 and John Quarterman. The Design and Implementation of 288 the 4.4BSD Operating System. 289[APL] Apple website [http://www.apple.com/macosx/] 290[BSDI] Berkeley Software Design, Inc. 291[DFB] DragonFlyBSD Project, The. 292[DOC] README, COPYRIGHT on tape. 293[FBD] FreeBSD Project, The. 294[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 295 Volume 11, Info 4, April, 1987. 296[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 297 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 298[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 299 Changes in the Kernel in 2.9BSD. Second Berkeley Software 300 Distribution UNIX Version 2.9, July, 1983. 301[NBD] NetBSD Project, The. 302[OBD] OpenBSD Project, The. 303[QCU] Salus, Peter H. A quarter century of UNIX. 304[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 305[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 306[USE] Usenet announcement. 307[WRS] Wind River Systems, Inc. 308[dmr] Dennis Ritchie, via E-Mail 309 310Multics 1965 311UNIX Summer 1969 312 DEC PDP-7 313First Edition 1971-11-03 [QCU] 314 DEC PDP-11/20, Assembler 315Second Edition 1972-06-12 [QCU] 316 10 UNIX installations 317Third Edition 1973-02-xx [QCU] 318 Pipes, 16 installations 319Fourth Edition 1973-11-xx [QCU] 320 rewriting in C effected, 321 above 30 installations 322Fifth Edition 1974-06-xx [QCU] 323 above 50 installations 324Sixth Edition 1975-05-xx [QCU] 325 port to DEC Vax 326Seventh Edition 1979-01-xx [QCU] 327 first portable UNIX 328Eighth Edition 1985-02-xx [QCU] 329 VAX 11/750, VAX 11/780 [dmr] 330 descended from 4.1c BSD [dmr] 331 descended from 4.1 BSD [44B] 332 scooping-out and replacement of the character-device 333 and networking part by the streams mechanism 334 335Ninth Edition 1986-09-xx [QCU] 336Tenth Edition 1989-10-xx [QCU] 337 3381BSD late 1977 339 1978-03-09 [QCU] 340 PDP-11, Pascal, ex(1) 341 30 free copies of 1BSD sent out 342 35 tapes sold for 50 USD [QCU] 3432BSD mid 1978 [QCU] 1979-05-10 [TUHS] 344 75 2BSD tapes shipped 3452.79BSD 1980-04-xx [TUHS] 3462.8BSD 1981-07-xx [KSJ] 347 3482.8.1BSD 1982-01-xx [QCU] 349 set of performance improvements 3502.9BSD 1983-07-xx [KSJ] 3512.9.1BSD 1983-11-xx [TUHS] 3522.9BSD-Seismo 1985-08-xx [SMS] 3532.10BSD 1987-04-xx [KKK] 3542.10.1BSD 1989-01-xx [SMS] 3552.11BSD 1992-02-xx [SMS] 3562.11BSD rev #430 1999-12-13 [SMS] 357 35832V 1978-1[01]-xx [QCU] 3593BSD late 1979 [QCU] March 1980 [TUHS] 360 virtual memory, page replacement, 361 demand paging 3624.0BSD 1980-10-xx 3634.1BSD 1981-07-08 [DOC] 3644.1aBSD 1982-04-xx 365 alpha release, 100 sites, networking [44B] 3664.1bBSD internal release, fast filesystem [44B] 3674.1cBSD late 1982 368 beta release, IPC [44B] 3694.2BSD 1983-09-xx [QCU] 370 1983-08-03 [DOC] 3714.3BSD 1986-06-xx [QCU] 372 1986-04-05 [KB], [DOC] 3734.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3744.3BSD NET/1 1988-11-xx [QCU] 375 1989-01-01 [DOC] 3764.3BSD Reno 1990-06-29 [QCU], [DOC] 3774.3BSD NET/2 1991-06-28 [QCU], [DOC] 378 379BSD/386 ALPHA 1991-12-xx [BSDI] 380 first code released to people outside BSDI 381386BSD 0.0 1992-02-xx [DOC] 382BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 383BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 384386BSD 0.1 1992-07-28 [DOC] 3854.4BSD Alpha 1992-07-07 386BSD/386 0.9.3 1992-10-xx [BSDI] 387 first external gamma; G customers 388BSD/386 0.9.4 1992-12-xx [BSDI] 389 would have been 1.0 except for request 390 for preliminary injunction 391BSD/386 1.0 1993-03-xx [BSDI] 392 injunction denied; first official release 393NetBSD 0.8 1993-04-20 [NBD] 3944.4BSD 1993-06-01 [USE] 395NetBSD 0.9 1993-08-23 [NBD] 396FreeBSD 1.0 1993-11-01 [FBD] 397FreeBSD 1.0.2 1993-11-14 [FBD] 398 supersedes 1.0 13 days after release. 399BSD/386 1.1 1994-02-xx [BSDI] 4004.4BSD Lite 1994-03-01 [USE] 401FreeBSD 1.1 1994-05-07 [FBD] 402FreeBSD 1.1.5 1994-06-30 [FBD] 403FreeBSD 1.1.5.1 1994-07-05 [FBD] 404 supersedes 1.1.5 5 days after release. 405NetBSD 1.0 1994-10-26 [NBD] 406386BSD 1.0 1994-11-12 [USE] 407FreeBSD 2.0 1994-11-23 [FBD] 408BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 409FreeBSD 2.0.5 1995-06-10 [FBD] 410BSD/OS 2.0.1 1995-06-xx [BSDI] 4114.4BSD Lite Release 2 1995-06-xx [44B] 412 the true final distribution from the CSRG 413FreeBSD 2.1.0 1995-11-19 [FBD] 414NetBSD 1.1 1995-11-26 [NBD] 415BSD/OS 2.1 1996-01-xx [BSDI] 416FreeBSD 2.1.5 1996-07-14 [FBD] 417NetBSD 1.2 1996-10-04 [NBD] 418OpenBSD 2.0 1996-10-18 [OBD] 419FreeBSD 2.1.6 1996-11-16 [FBD] 420FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 421Rhapsody 1997-xx-xx 422FreeBSD 2.1.7 1997-02-20 [FBD] 423BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 424FreeBSD 2.2.0 1997-03-16 [FBD] 425FreeBSD 2.2.1 1997-03-25 [FBD] 426FreeBSD 2.2.2 1997-05-16 [FBD] 427NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 428OpenBSD 2.1 1997-06-01 [OBD] 429FreeBSD 2.2.5 1997-10-22 [FBD] 430OpenBSD 2.2 1997-12-01 [OBD] 431NetBSD 1.3 1998-01-04 [NBD] 432FreeBSD 2.2.6 1998-03-25 [FBD] 433NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 434BSD/OS 3.1 1998-03-xx [BSDI] 435OpenBSD 2.3 1998-05-19 [OBD] 436NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 437FreeBSD 2.2.7 1998-07-22 [FBD] 438BSD/OS 4.0 1998-08-xx [BSDI] 439 2-lock MP support, ELF executables 440FreeBSD 3.0 1998-10-16 [FBD] 441 FreeBSD-3.0 is a snapshot from -current, 442 while 3.1 and 3.2 are from 3.x-stable which 443 was branched quite some time after 3.0-release 444FreeBSD 2.2.8 1998-11-29 [FBD] 445OpenBSD 2.4 1998-12-01 [OBD] 446NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 447FreeBSD 3.1 1999-02-15 [FBD] 448BSD/OS 4.0.1 1999-03-xx [BSDI] 449NetBSD 1.4 1999-05-12 [NBD] 450FreeBSD 3.2 1999-05-17 [FBD] 451OpenBSD 2.5 1999-05-19 [OBD] 452NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 453FreeBSD 3.3 1999-09-17 [FBD] 454OpenBSD 2.6 1999-12-01 [OBD] 455FreeBSD 3.4 1999-12-20 [FBD] 456BSD/OS 4.1 1999-12-xx [BSDI] 457FreeBSD 4.0 2000-03-13 [FBD] 458NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 459OpenBSD 2.7 2000-06-15 [OBD] 460FreeBSD 3.5 2000-06-24 [FBD] 461FreeBSD 4.1 2000-07-27 [FBD] 462FreeBSD 3.5.1 2000-07-28 [FBD] 463FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 464FreeBSD 4.2 2000-11-21 [FBD] 465NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 466BSD/OS 4.2 2000-11-29 [BSDI] 467OpenBSD 2.8 2000-12-01 [OBD] 468NetBSD 1.5 2000-12-06 [NBD] 469Mac OS X 10.0 2001-03-24 [APL] 470FreeBSD 4.3 2001-04-20 [FBD] 471OpenBSD 2.9 2001-06-01 [OBD] 472NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 473NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 474FreeBSD 4.4 2001-09-18 [FBD] 475Mac OS X 10.1 2001-09-29 [APL] 476OpenBSD 3.0 2001-12-01 [OBD] 477FreeBSD 4.5 2002-01-29 [FBD] 478BSD/OS 4.3 2002-03-14 [WRS] 479OpenBSD 3.1 2002-05-19 [OBD] 480FreeBSD 4.6 2002-06-15 [FBD] 481NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 482FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 483Mac OS X 10.2 2002-08-23 [APL] 484NetBSD 1.6 2002-09-14 [NBD] 485FreeBSD 4.7 2002-10-08 [FBD] 486OpenBSD 3.2 2002-11-01 [OBD] 487FreeBSD 5.0 2003-01-17 [FBD] 488 FreeBSD 5.0 is a separate branch off of 489 -current, similar to 3.0. 490FreeBSD 4.8 2003-04-03 [FBD] 491NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 492OpenBSD 3.3 2003-05-01 [OBD] 493BSD/OS 5.0 2003-05-?? [WRS] 494FreeBSD 5.1 2003-06-09 [FBD] 495Mac OS X 10.3 2003-10-24 [APL] 496FreeBSD 4.9 2003-10-28 [FBD] 497BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 498OpenBSD 3.4 2003-11-01 [OBD] 499FreeBSD 5.2 2004-01-12 [FBD] 500FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 501NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 502OpenBSD 3.5 2004-04-01 [OBD] 503FreeBSD 4.10 2004-05-27 [FBD] 504DragonFly 1.0 2004-07-12 [DFB] 505OpenBSD 3.6 2004-10-29 [OBD] 506FreeBSD 5.3 2004-11-06 [FBD] 507NetBSD 2.0 2004-12-09 [NBD] 508FreeBSD 4.11 2005-01-25 [FBD] 509DragonFly 1.2.0 2005-04-08 [DFB] 510NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 511Mac OS X 10.4 2005-04-29 [APL] 512FreeBSD 5.4 2005-05-09 [FBD] 513OpenBSD 3.7 2005-05-19 [OBD] 514NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 515OpenBSD 3.8 2005-11-01 [OBD] 516FreeBSD 6.0 2005-11-01 [FBD] 517NetBSD 2.1 2005-11-02 [NBD] 518NetBSD 3.0 2005-12-23 [NBD] 519DragonFly 1.4.0 2006-01-08 [DFB] 520OpenBSD 3.9 2006-05-01 [OBD] 521FreeBSD 6.1 2006-05-08 [FBD] 522FreeBSD 5.5 2006-05-25 [FBD] 523NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 524DragonFly 1.6.0 2006-07-24 [DFB] 525OpenBSD 4.0 2006-11-01 [OBD] 526NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 527NetBSD 3.1 2006-11-04 [NBD] 528FreeBSD 6.2 2007-01-15 [FBD] 529DragonFly 1.8.0 2007-01-30 [DFB] 530OpenBSD 4.1 2007-05-01 [OBD] 531DragonFly 1.10.0 2007-08-06 [DFB] 532Mac OS X 10.5 2007-10-26 [APL] 533OpenBSD 4.2 2007-11-01 [OBD] 534NetBSD 4.0 2007-12-19 [NBD] 535FreeBSD 6.3 2008-01-18 [FBD] 536DragonFly 1.12.0 2008-02-26 [DFB] 537FreeBSD 7.0 2008-02-27 [FBD] 538OpenBSD 4.3 2008-05-01 [OBD] 539DragonFly 2.0.0 2008-07-21 [DFB] 540OpenBSD 4.4 2008-11-01 [OBD] 541FreeBSD 6.4 2008-11-28 [FBD] 542FreeBSD 7.1 2009-01-04 [FBD] 543DragonFly 2.2.0 2009-02-17 [DFB] 544NetBSD 5.0 2009-04-29 [NBD] 545OpenBSD 4.5 2009-05-01 [OBD] 546FreeBSD 7.2 2009-05-04 [FBD] 547Mac OS X 10.6 2009-06-08 [APL] 548NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 549DragonFly 2.4.0 2009-09-16 [DFB] 550OpenBSD 4.6 2009-10-18 [OBD] 551FreeBSD 8.0 2009-11-26 [FBD] 552NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 553FreeBSD 7.3 2010-03-23 [FBD] 554DragonFly 2.6.0 2010-03-28 [DFB] 555OpenBSD 4.7 2010-05-19 [OBD] 556FreeBSD 8.1 2010-07-24 [FBD] 557DragonFly 2.8.2 2010-10-30 [DFB] 558OpenBSD 4.8 2010-11-01 [OBD] 559NetBSD 5.1 2010-11-19 [NBD] 560FreeBSD 7.4 2011-02-24 [FBD] 561FreeBSD 8.2 2011-02-24 [FBD] 562DragonFly 2.10.1 2011-04-26 [DFB] 563OpenBSD 4.9 2011-05-01 [OBD] 564Mac OS X 10.7 2011-07-20 [APL] 565OpenBSD 5.0 2011-11-01 [OBD] 566FreeBSD 9.0 2012-01-12 [FBD] 567NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 568DragonFly 3.0.1 2012-02-21 [DFB] 569FreeBSD 8.3 2012-04-18 [FBD] 570OpenBSD 5.1 2012-05-01 [OBD] 571Mac OS X 10.8 2012-07-25 [APL] 572NetBSD 6.0 2012-10-17 [NBD] 573OpenBSD 5.2 2012-11-01 [OBD] 574DragonFly 3.2.1 2012-11-02 [DFB] 575NetBSD 5.2 2012-12-03 [NBD] 576NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 577FreeBSD 9.1 2012-12-30 [FBD] 578DragonFly 3.4.1 2013-04-29 [DFB] 579OpenBSD 5.3 2013-05-01 [OBD] 580NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 581NetBSD 6.1 2013-05-18 [NBD] 582FreeBSD 8.4 2013-06-07 [FBD] 583 584Bibliography 585------------------------ 586 587Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 588Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 589System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 590 591Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 592Company, Inc., 1994. ISBN 0-201-54777-5 593 594McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 595Quarterman. The Design and Implementation of the 4.4BSD Operating 596System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 597 598McKusick, Marshall Kirk, George Neville-Neil. The Design and 599Implementation of the FreeBSD Operating System. 600Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 601 602Doug McIlroy. Research Unix Reader. 603 604Michael G. Brown. The Role of BSD in the Development of Unix. 605Presented to the Tasmanian Unix Special Interest Group of the 606Australian Computer Society, Hobart, August 1993. 607 608Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 609URL: http://www.byte.com/art/9410/sec8/art3.htm 610 611Andreas Klemm, Lars Köller. If you're going to San Francisco ... 612Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 613 614BSD Release Announcements collection. 615URL: http://www.FreeBSD.org/releases/ 616 617BSD Hypertext Man Pages 618URL: http://www.FreeBSD.org/cgi/man.cgi 619 620UNIX history graphing project 621URL: http://minnie.tuhs.org/Unix_History/index.html 622 623UNIX history 624URL: http://www.levenez.com/unix/ 625 626James Howard: The BSD Family Tree 627URL: http://ezine.daemonnews.org/200104/bsd_family.html 628("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 629 630 631Acknowledgments 632--------------- 633 634Josh Gilliam for suggestions, bug fixes, and finding very old 635original BSD announcements from Usenet or tapes. 636 637Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 638 639-- 640Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 641URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 642 643$FreeBSD: src/share/misc/bsd-family-tree,v 1.170 2013/06/17 00:27:13 svnexp Exp $ 644