bsd-family-tree revision 1.49
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 4.0.1 | DragonFly 2.0.0 225 | | FreeBSD | | 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 5.1.2 | DragonFly 3.0.1 255 | | FreeBSD | | | | | 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 5.2 | | 262 | 9.1 | | | \ | | 263 | | | | NetBSD 6.0.1 | | 264 | | | | | OpenBSD 5.3 DragonFly 3.4.1 265 | | | | | | | 266 | | | | NetBSD 6.0.2 | | 267 | | | `-NetBSD 6.1 | | 268 | | | | | 269 | | | | | 270 | | | | | 271FreeBSD 10 -current | NetBSD -current OpenBSD -current | 272 | | | | | 273 v v v v v 274 275Time 276---------------- 277 278Time tolerance +/- 6 months, depending on which book/article you read; if it 279was the announcement in Usenet or if it was available as tape. 280 281[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 282 and John Quarterman. The Design and Implementation of 283 the 4.4BSD Operating System. 284[APL] Apple website [http://www.apple.com/macosx/] 285[BSDI] Berkeley Software Design, Inc. 286[DFB] DragonFlyBSD Project, The. 287[DOC] README, COPYRIGHT on tape. 288[FBD] FreeBSD Project, The. 289[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 290 Volume 11, Info 4, April, 1987. 291[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 292 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 293[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 294 Changes in the Kernel in 2.9BSD. Second Berkeley Software 295 Distribution UNIX Version 2.9, July, 1983. 296[NBD] NetBSD Project, The. 297[OBD] OpenBSD Project, The. 298[QCU] Salus, Peter H. A quarter century of UNIX. 299[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 300[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 301[USE] Usenet announcement. 302[WRS] Wind River Systems, Inc. 303[dmr] Dennis Ritchie, via E-Mail 304 305Multics 1965 306UNIX Summer 1969 307 DEC PDP-7 308First Edition 1971-11-03 [QCU] 309 DEC PDP-11/20, Assembler 310Second Edition 1972-06-12 [QCU] 311 10 UNIX installations 312Third Edition 1973-02-xx [QCU] 313 Pipes, 16 installations 314Fourth Edition 1973-11-xx [QCU] 315 rewriting in C effected, 316 above 30 installations 317Fifth Edition 1974-06-xx [QCU] 318 above 50 installations 319Sixth Edition 1975-05-xx [QCU] 320 port to DEC Vax 321Seventh Edition 1979-01-xx [QCU] 322 first portable UNIX 323Eighth Edition 1985-02-xx [QCU] 324 VAX 11/750, VAX 11/780 [dmr] 325 descended from 4.1c BSD [dmr] 326 descended from 4.1 BSD [44B] 327 scooping-out and replacement of the character-device 328 and networking part by the streams mechanism 329 330Ninth Edition 1986-09-xx [QCU] 331Tenth Edition 1989-10-xx [QCU] 332 3331BSD late 1977 334 1978-03-09 [QCU] 335 PDP-11, Pascal, ex(1) 336 30 free copies of 1BSD sent out 337 35 tapes sold for 50 USD [QCU] 3382BSD mid 1978 [QCU] 1979-05-10 [TUHS] 339 75 2BSD tapes shipped 3402.79BSD 1980-04-xx [TUHS] 3412.8BSD 1981-07-xx [KSJ] 342 3432.8.1BSD 1982-01-xx [QCU] 344 set of performance improvements 3452.9BSD 1983-07-xx [KSJ] 3462.9.1BSD 1983-11-xx [TUHS] 3472.9BSD-Seismo 1985-08-xx [SMS] 3482.10BSD 1987-04-xx [KKK] 3492.10.1BSD 1989-01-xx [SMS] 3502.11BSD 1992-02-xx [SMS] 3512.11BSD rev #430 1999-12-13 [SMS] 352 35332V 1978-1[01]-xx [QCU] 3543BSD late 1979 [QCU] March 1980 [TUHS] 355 virtual memory, page replacement, 356 demand paging 3574.0BSD 1980-10-xx 3584.1BSD 1981-07-08 [DOC] 3594.1aBSD 1982-04-xx 360 alpha release, 100 sites, networking [44B] 3614.1bBSD internal release, fast filesystem [44B] 3624.1cBSD late 1982 363 beta release, IPC [44B] 3644.2BSD 1983-09-xx [QCU] 365 1983-08-03 [DOC] 3664.3BSD 1986-06-xx [QCU] 367 1986-04-05 [KB], [DOC] 3684.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3694.3BSD NET/1 1988-11-xx [QCU] 370 1989-01-01 [DOC] 3714.3BSD Reno 1990-06-29 [QCU], [DOC] 3724.3BSD NET/2 1991-06-28 [QCU], [DOC] 373 374BSD/386 ALPHA 1991-12-xx [BSDI] 375 first code released to people outside BSDI 376386BSD 0.0 1992-02-xx [DOC] 377BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 378BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 379386BSD 0.1 1992-07-28 [DOC] 3804.4BSD Alpha 1992-07-07 381BSD/386 0.9.3 1992-10-xx [BSDI] 382 first external gamma; G customers 383BSD/386 0.9.4 1992-12-xx [BSDI] 384 would have been 1.0 except for request 385 for preliminary injunction 386BSD/386 1.0 1993-03-xx [BSDI] 387 injunction denied; first official release 388NetBSD 0.8 1993-04-20 [NBD] 3894.4BSD 1993-06-01 [USE] 390NetBSD 0.9 1993-08-23 [NBD] 391FreeBSD 1.0 1993-11-01 [FBD] 392FreeBSD 1.0.2 1993-11-14 [FBD] 393 supersedes 1.0 13 days after release. 394BSD/386 1.1 1994-02-xx [BSDI] 3954.4BSD Lite 1994-03-01 [USE] 396FreeBSD 1.1 1994-05-07 [FBD] 397FreeBSD 1.1.5 1994-06-30 [FBD] 398FreeBSD 1.1.5.1 1994-07-05 [FBD] 399 supersedes 1.1.5 5 days after release. 400NetBSD 1.0 1994-10-26 [NBD] 401386BSD 1.0 1994-11-12 [USE] 402FreeBSD 2.0 1994-11-23 [FBD] 403BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 404FreeBSD 2.0.5 1995-06-10 [FBD] 405BSD/OS 2.0.1 1995-06-xx [BSDI] 4064.4BSD Lite Release 2 1995-06-xx [44B] 407 the true final distribution from the CSRG 408FreeBSD 2.1.0 1995-11-19 [FBD] 409NetBSD 1.1 1995-11-26 [NBD] 410BSD/OS 2.1 1996-01-xx [BSDI] 411FreeBSD 2.1.5 1996-07-14 [FBD] 412NetBSD 1.2 1996-10-04 [NBD] 413OpenBSD 2.0 1996-10-18 [OBD] 414FreeBSD 2.1.6 1996-11-16 [FBD] 415FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 416Rhapsody 1997-xx-xx 417FreeBSD 2.1.7 1997-02-20 [FBD] 418BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 419FreeBSD 2.2.0 1997-03-16 [FBD] 420FreeBSD 2.2.1 1997-03-25 [FBD] 421FreeBSD 2.2.2 1997-05-16 [FBD] 422NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 423OpenBSD 2.1 1997-06-01 [OBD] 424FreeBSD 2.2.5 1997-10-22 [FBD] 425OpenBSD 2.2 1997-12-01 [OBD] 426NetBSD 1.3 1998-01-04 [NBD] 427FreeBSD 2.2.6 1998-03-25 [FBD] 428NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 429BSD/OS 3.1 1998-03-xx [BSDI] 430OpenBSD 2.3 1998-05-19 [OBD] 431NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 432FreeBSD 2.2.7 1998-07-22 [FBD] 433BSD/OS 4.0 1998-08-xx [BSDI] 434 2-lock MP support, ELF executables 435FreeBSD 3.0 1998-10-16 [FBD] 436 FreeBSD-3.0 is a snapshot from -current, 437 while 3.1 and 3.2 are from 3.x-stable which 438 was branched quite some time after 3.0-release 439FreeBSD 2.2.8 1998-11-29 [FBD] 440OpenBSD 2.4 1998-12-01 [OBD] 441NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 442FreeBSD 3.1 1999-02-15 [FBD] 443BSD/OS 4.0.1 1999-03-xx [BSDI] 444NetBSD 1.4 1999-05-12 [NBD] 445FreeBSD 3.2 1999-05-17 [FBD] 446OpenBSD 2.5 1999-05-19 [OBD] 447NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 448FreeBSD 3.3 1999-09-17 [FBD] 449OpenBSD 2.6 1999-12-01 [OBD] 450FreeBSD 3.4 1999-12-20 [FBD] 451BSD/OS 4.1 1999-12-xx [BSDI] 452FreeBSD 4.0 2000-03-13 [FBD] 453NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 454OpenBSD 2.7 2000-06-15 [OBD] 455FreeBSD 3.5 2000-06-24 [FBD] 456FreeBSD 4.1 2000-07-27 [FBD] 457FreeBSD 3.5.1 2000-07-28 [FBD] 458FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 459FreeBSD 4.2 2000-11-21 [FBD] 460NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 461BSD/OS 4.2 2000-11-29 [BSDI] 462OpenBSD 2.8 2000-12-01 [OBD] 463NetBSD 1.5 2000-12-06 [NBD] 464Mac OS X 10.0 2001-03-24 [APL] 465FreeBSD 4.3 2001-04-20 [FBD] 466OpenBSD 2.9 2001-06-01 [OBD] 467NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 468NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 469FreeBSD 4.4 2001-09-18 [FBD] 470Mac OS X 10.1 2001-09-29 [APL] 471OpenBSD 3.0 2001-12-01 [OBD] 472FreeBSD 4.5 2002-01-29 [FBD] 473BSD/OS 4.3 2002-03-14 [WRS] 474OpenBSD 3.1 2002-05-19 [OBD] 475FreeBSD 4.6 2002-06-15 [FBD] 476NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 477FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 478Mac OS X 10.2 2002-08-23 [APL] 479NetBSD 1.6 2002-09-14 [NBD] 480FreeBSD 4.7 2002-10-08 [FBD] 481OpenBSD 3.2 2002-11-01 [OBD] 482FreeBSD 5.0 2003-01-17 [FBD] 483 FreeBSD 5.0 is a separate branch off of 484 -current, similar to 3.0. 485FreeBSD 4.8 2003-04-03 [FBD] 486NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 487OpenBSD 3.3 2003-05-01 [OBD] 488BSD/OS 5.0 2003-05-?? [WRS] 489FreeBSD 5.1 2003-06-09 [FBD] 490Mac OS X 10.3 2003-10-24 [APL] 491FreeBSD 4.9 2003-10-28 [FBD] 492BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 493OpenBSD 3.4 2003-11-01 [OBD] 494FreeBSD 5.2 2004-01-12 [FBD] 495FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 496NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 497OpenBSD 3.5 2004-04-01 [OBD] 498FreeBSD 4.10 2004-05-27 [FBD] 499DragonFly 1.0 2004-07-12 [DFB] 500OpenBSD 3.6 2004-10-29 [OBD] 501FreeBSD 5.3 2004-11-06 [FBD] 502NetBSD 2.0 2004-12-09 [NBD] 503FreeBSD 4.11 2005-01-25 [FBD] 504DragonFly 1.2.0 2005-04-08 [DFB] 505NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 506Mac OS X 10.4 2005-04-29 [APL] 507FreeBSD 5.4 2005-05-09 [FBD] 508OpenBSD 3.7 2005-05-19 [OBD] 509NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 510OpenBSD 3.8 2005-11-01 [OBD] 511FreeBSD 6.0 2005-11-01 [FBD] 512NetBSD 2.1 2005-11-02 [NBD] 513NetBSD 3.0 2005-12-23 [NBD] 514DragonFly 1.4.0 2006-01-08 [DFB] 515OpenBSD 3.9 2006-05-01 [OBD] 516FreeBSD 6.1 2006-05-08 [FBD] 517FreeBSD 5.5 2006-05-25 [FBD] 518NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 519DragonFly 1.6.0 2006-07-24 [DFB] 520OpenBSD 4.0 2006-11-01 [OBD] 521NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 522NetBSD 3.1 2006-11-04 [NBD] 523FreeBSD 6.2 2007-01-15 [FBD] 524DragonFly 1.8.0 2007-01-30 [DFB] 525OpenBSD 4.1 2007-05-01 [OBD] 526DragonFly 1.10.0 2007-08-06 [DFB] 527Mac OS X 10.5 2007-10-26 [APL] 528OpenBSD 4.2 2007-11-01 [OBD] 529NetBSD 4.0 2007-12-19 [NBD] 530FreeBSD 6.3 2008-01-18 [FBD] 531DragonFly 1.12.0 2008-02-26 [DFB] 532FreeBSD 7.0 2008-02-27 [FBD] 533OpenBSD 4.3 2008-05-01 [OBD] 534DragonFly 2.0.0 2008-07-21 [DFB] 535OpenBSD 4.4 2008-11-01 [OBD] 536FreeBSD 6.4 2008-11-28 [FBD] 537FreeBSD 7.1 2009-01-04 [FBD] 538DragonFly 2.2.0 2009-02-17 [DFB] 539NetBSD 5.0 2009-04-29 [NBD] 540OpenBSD 4.5 2009-05-01 [OBD] 541FreeBSD 7.2 2009-05-04 [FBD] 542Mac OS X 10.6 2009-06-08 [APL] 543NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 544DragonFly 2.4.0 2009-09-16 [DFB] 545OpenBSD 4.6 2009-10-18 [OBD] 546FreeBSD 8.0 2009-11-26 [FBD] 547NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 548FreeBSD 7.3 2010-03-23 [FBD] 549DragonFly 2.6.0 2010-03-28 [DFB] 550OpenBSD 4.7 2010-05-19 [OBD] 551FreeBSD 8.1 2010-07-24 [FBD] 552DragonFly 2.8.2 2010-10-30 [DFB] 553OpenBSD 4.8 2010-11-01 [OBD] 554NetBSD 5.1 2010-11-19 [NBD] 555FreeBSD 7.4 2011-02-24 [FBD] 556FreeBSD 8.2 2011-02-24 [FBD] 557DragonFly 2.10.1 2011-04-26 [DFB] 558OpenBSD 4.9 2011-05-01 [OBD] 559Mac OS X 10.7 2011-07-20 [APL] 560OpenBSD 5.0 2011-11-01 [OBD] 561FreeBSD 9.0 2012-01-12 [FBD] 562NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 563DragonFly 3.0.1 2012-02-21 [DFB] 564FreeBSD 8.3 2012-04-18 [FBD] 565OpenBSD 5.1 2012-05-01 [OBD] 566Mac OS X 10.8 2012-07-25 [APL] 567NetBSD 6.0 2012-10-17 [NBD] 568OpenBSD 5.2 2012-11-01 [OBD] 569DragonFly 3.2.1 2012-11-02 [DFB] 570NetBSD 5.2 2012-12-03 [NBD] 571NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 572FreeBSD 9.1 2012-12-30 [FBD] 573DragonFly 3.4.1 2013-04-29 [DFB] 574OpenBSD 5.3 2013-05-01 [OBD] 575NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 576NetBSD 6.1 2013-05-18 [NBD] 577 578Bibliography 579------------------------ 580 581Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 582Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 583System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 584 585Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 586Company, Inc., 1994. ISBN 0-201-54777-5 587 588McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 589Quarterman. The Design and Implementation of the 4.4BSD Operating 590System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 591 592McKusick, Marshall Kirk, George Neville-Neil. The Design and 593Implementation of the FreeBSD Operating System. 594Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 595 596Doug McIlroy. Research Unix Reader. 597 598Michael G. Brown. The Role of BSD in the Development of Unix. 599Presented to the Tasmanian Unix Special Interest Group of the 600Australian Computer Society, Hobart, August 1993. 601 602Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 603URL: http://www.byte.com/art/9410/sec8/art3.htm 604 605Andreas Klemm, Lars Köller. If you're going to San Francisco ... 606Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 607 608BSD Release Announcements collection. 609URL: http://www.FreeBSD.org/releases/ 610 611BSD Hypertext Man Pages 612URL: http://www.FreeBSD.org/cgi/man.cgi 613 614UNIX history graphing project 615URL: http://minnie.tuhs.org/Unix_History/index.html 616 617UNIX history 618URL: http://www.levenez.com/unix/ 619 620James Howard: The BSD Family Tree 621URL: http://ezine.daemonnews.org/200104/bsd_family.html 622("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 623 624 625Acknowledgments 626--------------- 627 628Josh Gilliam for suggestions, bug fixes, and finding very old 629original BSD announcements from Usenet or tapes. 630 631Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 632 633-- 634Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 635URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree 636 637$FreeBSD$ 638