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 | | | | | | 257 | | | | | | NetBSD | | 258 | | | | | | 5.1.3 | | 259 | | | | | | OpenBSD 5.1 | 260 | | | Mac OS X | `----. | | 261 | | | 10.8 | \ | | 262 | | | | NetBSD 6.0 | | | 263 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 264 | FreeBSD | | | | | NetBSD | | 265 | 9.1 | | | | | 5.2 | | 266 | | | | | | | | | 267 | | | | | | NetBSD | | 268 | | | | | | 5.2.1 | | 269 | | | | | | | | 270 | | | | | \ | | 271 | | | | | NetBSD | | 272 | | | | | 6.0.1 | | 273 | | | | | | OpenBSD 5.3 DragonFly 3.4.1 274 | | | | | NetBSD | | 275 | | | | | 6.0.2 | | 276 | | | | | | | 277 | | | | `-NetBSD 6.1 | | 278 | FreeBSD | | | | 279 | 8.4 | | | | 280 | | | | | 281 | | | | | 282 | | | | | 283FreeBSD 10 -current | NetBSD -current OpenBSD -current | 284 | | | | | 285 v v v v v 286 287Time 288---------------- 289 290Time tolerance +/- 6 months, depending on which book/article you read; if it 291was the announcement in Usenet or if it was available as tape. 292 293[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 294 and John Quarterman. The Design and Implementation of 295 the 4.4BSD Operating System. 296[APL] Apple website [http://www.apple.com/macosx/] 297[BSDI] Berkeley Software Design, Inc. 298[DFB] DragonFlyBSD Project, The. 299[DOC] README, COPYRIGHT on tape. 300[FBD] FreeBSD Project, The. 301[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 302 Volume 11, Info 4, April, 1987. 303[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 304 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 305[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 306 Changes in the Kernel in 2.9BSD. Second Berkeley Software 307 Distribution UNIX Version 2.9, July, 1983. 308[NBD] NetBSD Project, The. 309[OBD] OpenBSD Project, The. 310[QCU] Salus, Peter H. A quarter century of UNIX. 311[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 312[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 313[USE] Usenet announcement. 314[WRS] Wind River Systems, Inc. 315[dmr] Dennis Ritchie, via E-Mail 316 317Multics 1965 318UNIX Summer 1969 319 DEC PDP-7 320First Edition 1971-11-03 [QCU] 321 DEC PDP-11/20, Assembler 322Second Edition 1972-06-12 [QCU] 323 10 UNIX installations 324Third Edition 1973-02-xx [QCU] 325 Pipes, 16 installations 326Fourth Edition 1973-11-xx [QCU] 327 rewriting in C effected, 328 above 30 installations 329Fifth Edition 1974-06-xx [QCU] 330 above 50 installations 331Sixth Edition 1975-05-xx [QCU] 332 port to DEC Vax 333Seventh Edition 1979-01-xx [QCU] 334 first portable UNIX 335Eighth Edition 1985-02-xx [QCU] 336 VAX 11/750, VAX 11/780 [dmr] 337 descended from 4.1c BSD [dmr] 338 descended from 4.1 BSD [44B] 339 scooping-out and replacement of the character-device 340 and networking part by the streams mechanism 341 342Ninth Edition 1986-09-xx [QCU] 343Tenth Edition 1989-10-xx [QCU] 344 3451BSD late 1977 346 1978-03-09 [QCU] 347 PDP-11, Pascal, ex(1) 348 30 free copies of 1BSD sent out 349 35 tapes sold for 50 USD [QCU] 3502BSD mid 1978 [QCU] 1979-05-10 [TUHS] 351 75 2BSD tapes shipped 3522.79BSD 1980-04-xx [TUHS] 3532.8BSD 1981-07-xx [KSJ] 354 3552.8.1BSD 1982-01-xx [QCU] 356 set of performance improvements 3572.9BSD 1983-07-xx [KSJ] 3582.9.1BSD 1983-11-xx [TUHS] 3592.9BSD-Seismo 1985-08-xx [SMS] 3602.10BSD 1987-04-xx [KKK] 3612.10.1BSD 1989-01-xx [SMS] 3622.11BSD 1992-02-xx [SMS] 3632.11BSD rev #430 1999-12-13 [SMS] 364 36532V 1978-1[01]-xx [QCU] 3663BSD late 1979 [QCU] March 1980 [TUHS] 367 virtual memory, page replacement, 368 demand paging 3694.0BSD 1980-10-xx 3704.1BSD 1981-07-08 [DOC] 3714.1aBSD 1982-04-xx 372 alpha release, 100 sites, networking [44B] 3734.1bBSD internal release, fast filesystem [44B] 3744.1cBSD late 1982 375 beta release, IPC [44B] 3764.2BSD 1983-09-xx [QCU] 377 1983-08-03 [DOC] 3784.3BSD 1986-06-xx [QCU] 379 1986-04-05 [KB], [DOC] 3804.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3814.3BSD NET/1 1988-11-xx [QCU] 382 1989-01-01 [DOC] 3834.3BSD Reno 1990-06-29 [QCU], [DOC] 3844.3BSD NET/2 1991-06-28 [QCU], [DOC] 385 386BSD/386 ALPHA 1991-12-xx [BSDI] 387 first code released to people outside BSDI 388386BSD 0.0 1992-02-xx [DOC] 389BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 390BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 391386BSD 0.1 1992-07-28 [DOC] 3924.4BSD Alpha 1992-07-07 393BSD/386 0.9.3 1992-10-xx [BSDI] 394 first external gamma; G customers 395BSD/386 0.9.4 1992-12-xx [BSDI] 396 would have been 1.0 except for request 397 for preliminary injunction 398BSD/386 1.0 1993-03-xx [BSDI] 399 injunction denied; first official release 400NetBSD 0.8 1993-04-20 [NBD] 4014.4BSD 1993-06-01 [USE] 402NetBSD 0.9 1993-08-23 [NBD] 403FreeBSD 1.0 1993-11-01 [FBD] 404FreeBSD 1.0.2 1993-11-14 [FBD] 405 supersedes 1.0 13 days after release. 406BSD/386 1.1 1994-02-xx [BSDI] 4074.4BSD Lite 1994-03-01 [USE] 408FreeBSD 1.1 1994-05-07 [FBD] 409FreeBSD 1.1.5 1994-06-30 [FBD] 410FreeBSD 1.1.5.1 1994-07-05 [FBD] 411 supersedes 1.1.5 5 days after release. 412NetBSD 1.0 1994-10-26 [NBD] 413386BSD 1.0 1994-11-12 [USE] 414FreeBSD 2.0 1994-11-23 [FBD] 415BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 416FreeBSD 2.0.5 1995-06-10 [FBD] 417BSD/OS 2.0.1 1995-06-xx [BSDI] 4184.4BSD Lite Release 2 1995-06-xx [44B] 419 the true final distribution from the CSRG 420FreeBSD 2.1.0 1995-11-19 [FBD] 421NetBSD 1.1 1995-11-26 [NBD] 422BSD/OS 2.1 1996-01-xx [BSDI] 423FreeBSD 2.1.5 1996-07-14 [FBD] 424NetBSD 1.2 1996-10-04 [NBD] 425OpenBSD 2.0 1996-10-18 [OBD] 426FreeBSD 2.1.6 1996-11-16 [FBD] 427FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 428Rhapsody 1997-xx-xx 429FreeBSD 2.1.7 1997-02-20 [FBD] 430BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 431FreeBSD 2.2.0 1997-03-16 [FBD] 432FreeBSD 2.2.1 1997-03-25 [FBD] 433FreeBSD 2.2.2 1997-05-16 [FBD] 434NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 435OpenBSD 2.1 1997-06-01 [OBD] 436FreeBSD 2.2.5 1997-10-22 [FBD] 437OpenBSD 2.2 1997-12-01 [OBD] 438NetBSD 1.3 1998-01-04 [NBD] 439FreeBSD 2.2.6 1998-03-25 [FBD] 440NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 441BSD/OS 3.1 1998-03-xx [BSDI] 442OpenBSD 2.3 1998-05-19 [OBD] 443NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 444FreeBSD 2.2.7 1998-07-22 [FBD] 445BSD/OS 4.0 1998-08-xx [BSDI] 446 2-lock MP support, ELF executables 447FreeBSD 3.0 1998-10-16 [FBD] 448 FreeBSD-3.0 is a snapshot from -current, 449 while 3.1 and 3.2 are from 3.x-stable which 450 was branched quite some time after 3.0-release 451FreeBSD 2.2.8 1998-11-29 [FBD] 452OpenBSD 2.4 1998-12-01 [OBD] 453NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 454FreeBSD 3.1 1999-02-15 [FBD] 455BSD/OS 4.0.1 1999-03-xx [BSDI] 456NetBSD 1.4 1999-05-12 [NBD] 457FreeBSD 3.2 1999-05-17 [FBD] 458OpenBSD 2.5 1999-05-19 [OBD] 459NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 460FreeBSD 3.3 1999-09-17 [FBD] 461OpenBSD 2.6 1999-12-01 [OBD] 462FreeBSD 3.4 1999-12-20 [FBD] 463BSD/OS 4.1 1999-12-xx [BSDI] 464FreeBSD 4.0 2000-03-13 [FBD] 465NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 466OpenBSD 2.7 2000-06-15 [OBD] 467FreeBSD 3.5 2000-06-24 [FBD] 468FreeBSD 4.1 2000-07-27 [FBD] 469FreeBSD 3.5.1 2000-07-28 [FBD] 470FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 471FreeBSD 4.2 2000-11-21 [FBD] 472NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 473BSD/OS 4.2 2000-11-29 [BSDI] 474OpenBSD 2.8 2000-12-01 [OBD] 475NetBSD 1.5 2000-12-06 [NBD] 476Mac OS X 10.0 2001-03-24 [APL] 477FreeBSD 4.3 2001-04-20 [FBD] 478OpenBSD 2.9 2001-06-01 [OBD] 479NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 480NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 481FreeBSD 4.4 2001-09-18 [FBD] 482Mac OS X 10.1 2001-09-29 [APL] 483OpenBSD 3.0 2001-12-01 [OBD] 484FreeBSD 4.5 2002-01-29 [FBD] 485BSD/OS 4.3 2002-03-14 [WRS] 486OpenBSD 3.1 2002-05-19 [OBD] 487FreeBSD 4.6 2002-06-15 [FBD] 488NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 489FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 490Mac OS X 10.2 2002-08-23 [APL] 491NetBSD 1.6 2002-09-14 [NBD] 492FreeBSD 4.7 2002-10-08 [FBD] 493OpenBSD 3.2 2002-11-01 [OBD] 494FreeBSD 5.0 2003-01-17 [FBD] 495 FreeBSD 5.0 is a separate branch off of 496 -current, similar to 3.0. 497FreeBSD 4.8 2003-04-03 [FBD] 498NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 499OpenBSD 3.3 2003-05-01 [OBD] 500BSD/OS 5.0 2003-05-?? [WRS] 501FreeBSD 5.1 2003-06-09 [FBD] 502Mac OS X 10.3 2003-10-24 [APL] 503FreeBSD 4.9 2003-10-28 [FBD] 504BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 505OpenBSD 3.4 2003-11-01 [OBD] 506FreeBSD 5.2 2004-01-12 [FBD] 507FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 508NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 509OpenBSD 3.5 2004-04-01 [OBD] 510FreeBSD 4.10 2004-05-27 [FBD] 511DragonFly 1.0 2004-07-12 [DFB] 512OpenBSD 3.6 2004-10-29 [OBD] 513FreeBSD 5.3 2004-11-06 [FBD] 514NetBSD 2.0 2004-12-09 [NBD] 515FreeBSD 4.11 2005-01-25 [FBD] 516DragonFly 1.2.0 2005-04-08 [DFB] 517NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 518Mac OS X 10.4 2005-04-29 [APL] 519FreeBSD 5.4 2005-05-09 [FBD] 520OpenBSD 3.7 2005-05-19 [OBD] 521NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 522OpenBSD 3.8 2005-11-01 [OBD] 523FreeBSD 6.0 2005-11-01 [FBD] 524NetBSD 2.1 2005-11-02 [NBD] 525NetBSD 3.0 2005-12-23 [NBD] 526DragonFly 1.4.0 2006-01-08 [DFB] 527OpenBSD 3.9 2006-05-01 [OBD] 528FreeBSD 6.1 2006-05-08 [FBD] 529FreeBSD 5.5 2006-05-25 [FBD] 530NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 531DragonFly 1.6.0 2006-07-24 [DFB] 532OpenBSD 4.0 2006-11-01 [OBD] 533NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 534NetBSD 3.1 2006-11-04 [NBD] 535FreeBSD 6.2 2007-01-15 [FBD] 536DragonFly 1.8.0 2007-01-30 [DFB] 537OpenBSD 4.1 2007-05-01 [OBD] 538DragonFly 1.10.0 2007-08-06 [DFB] 539Mac OS X 10.5 2007-10-26 [APL] 540OpenBSD 4.2 2007-11-01 [OBD] 541NetBSD 4.0 2007-12-19 [NBD] 542FreeBSD 6.3 2008-01-18 [FBD] 543DragonFly 1.12.0 2008-02-26 [DFB] 544FreeBSD 7.0 2008-02-27 [FBD] 545OpenBSD 4.3 2008-05-01 [OBD] 546DragonFly 2.0.0 2008-07-21 [DFB] 547OpenBSD 4.4 2008-11-01 [OBD] 548FreeBSD 6.4 2008-11-28 [FBD] 549FreeBSD 7.1 2009-01-04 [FBD] 550DragonFly 2.2.0 2009-02-17 [DFB] 551NetBSD 5.0 2009-04-29 [NBD] 552OpenBSD 4.5 2009-05-01 [OBD] 553FreeBSD 7.2 2009-05-04 [FBD] 554Mac OS X 10.6 2009-06-08 [APL] 555NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 556DragonFly 2.4.0 2009-09-16 [DFB] 557OpenBSD 4.6 2009-10-18 [OBD] 558FreeBSD 8.0 2009-11-26 [FBD] 559NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 560FreeBSD 7.3 2010-03-23 [FBD] 561DragonFly 2.6.0 2010-03-28 [DFB] 562OpenBSD 4.7 2010-05-19 [OBD] 563FreeBSD 8.1 2010-07-24 [FBD] 564DragonFly 2.8.2 2010-10-30 [DFB] 565OpenBSD 4.8 2010-11-01 [OBD] 566NetBSD 5.1 2010-11-19 [NBD] 567FreeBSD 7.4 2011-02-24 [FBD] 568FreeBSD 8.2 2011-02-24 [FBD] 569DragonFly 2.10.1 2011-04-26 [DFB] 570OpenBSD 4.9 2011-05-01 [OBD] 571Mac OS X 10.7 2011-07-20 [APL] 572OpenBSD 5.0 2011-11-01 [OBD] 573FreeBSD 9.0 2012-01-12 [FBD] 574NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 575DragonFly 3.0.1 2012-02-21 [DFB] 576FreeBSD 8.3 2012-04-18 [FBD] 577OpenBSD 5.1 2012-05-01 [OBD] 578Mac OS X 10.8 2012-07-25 [APL] 579NetBSD 6.0 2012-10-17 [NBD] 580OpenBSD 5.2 2012-11-01 [OBD] 581DragonFly 3.2.1 2012-11-02 [DFB] 582NetBSD 5.2 2012-12-03 [NBD] 583NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 584FreeBSD 9.1 2012-12-30 [FBD] 585DragonFly 3.4.1 2013-04-29 [DFB] 586OpenBSD 5.3 2013-05-01 [OBD] 587NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 588NetBSD 6.1 2013-05-18 [NBD] 589FreeBSD 8.4 2013-06-07 [FBD] 590NetBSD 5.1.3 2013-09-29 [NBD] 591NetBSD 5.2.1 2013-09-29 [NBD] 592 593Bibliography 594------------------------ 595 596Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 597Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 598System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 599 600Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 601Company, Inc., 1994. ISBN 0-201-54777-5 602 603McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 604Quarterman. The Design and Implementation of the 4.4BSD Operating 605System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 606 607McKusick, Marshall Kirk, George Neville-Neil. The Design and 608Implementation of the FreeBSD Operating System. 609Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 610 611Doug McIlroy. Research Unix Reader. 612 613Michael G. Brown. The Role of BSD in the Development of Unix. 614Presented to the Tasmanian Unix Special Interest Group of the 615Australian Computer Society, Hobart, August 1993. 616 617Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 618URL: http://www.byte.com/art/9410/sec8/art3.htm 619 620Andreas Klemm, Lars Köller. If you're going to San Francisco ... 621Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 622 623BSD Release Announcements collection. 624URL: http://www.FreeBSD.org/releases/ 625 626BSD Hypertext Man Pages 627URL: http://www.FreeBSD.org/cgi/man.cgi 628 629UNIX history graphing project 630URL: http://minnie.tuhs.org/Unix_History/index.html 631 632UNIX history 633URL: http://www.levenez.com/unix/ 634 635James Howard: The BSD Family Tree 636URL: http://ezine.daemonnews.org/200104/bsd_family.html 637("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 638 639 640Acknowledgments 641--------------- 642 643Josh Gilliam for suggestions, bug fixes, and finding very old 644original BSD announcements from Usenet or tapes. 645 646Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 647 648-- 649Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 650URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 651 652$FreeBSD$ 653