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 | | | | | | 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 | | | | | | DragonFly 2.4.0 235 | | | | | OpenBSD 4.6 | 236 | | | | | | | 237 *--FreeBSD | | | | | | 238 | 8.0 | | | | | | 239 | | FreeBSD | | | | | 240 | | 7.3 | | | | DragonFly 2.6.0 241 | | | | | | OpenBSD 4.7 | 242 | FreeBSD | | | | | | 243 | 8.1 | | | | | | 244 | | | | | | | DragonFly 2.8.2 245 | | | | | | OpenBSD 4.8 | 246 | | | | | NetBSD 5.1 | | 247 | FreeBSD FreeBSD | | | | 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 | | | | DragonFly 3.0.1 255 | v 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 | | | | | 262FreeBSD 10 -current | NetBSD -current OpenBSD -current | 263 | | | | | 264 v v v v v 265 266Time 267---------------- 268 269Time tolerance +/- 6 months, depending on which book/article you read; if it 270was the announcement in Usenet or if it was available as tape. 271 272[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 273 and John Quarterman. The Design and Implementation of 274 the 4.4BSD Operating System. 275[APL] Apple website [http://www.apple.com/macosx/] 276[BSDI] Berkeley Software Design, Inc. 277[DFB] DragonFlyBSD Project, The. 278[DOC] README, COPYRIGHT on tape. 279[FBD] FreeBSD Project, The. 280[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 281 Volume 11, Info 4, April, 1987. 282[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 283 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 284[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 285 Changes in the Kernel in 2.9BSD. Second Berkeley Software 286 Distribution UNIX Version 2.9, July, 1983. 287[NBD] NetBSD Project, The. 288[OBD] OpenBSD Project, The. 289[QCU] Salus, Peter H. A quarter century of UNIX. 290[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 291[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 292[USE] Usenet announcement. 293[WRS] Wind River Systems, Inc. 294[dmr] Dennis Ritchie, via E-Mail 295 296Multics 1965 297UNIX Summer 1969 298 DEC PDP-7 299First Edition 1971-11-03 [QCU] 300 DEC PDP-11/20, Assembler 301Second Edition 1972-06-12 [QCU] 302 10 UNIX installations 303Third Edition 1973-02-xx [QCU] 304 Pipes, 16 installations 305Fourth Edition 1973-11-xx [QCU] 306 rewriting in C effected, 307 above 30 installations 308Fifth Edition 1974-06-xx [QCU] 309 above 50 installations 310Sixth Edition 1975-05-xx [QCU] 311 port to DEC Vax 312Seventh Edition 1979-01-xx [QCU] 313 first portable UNIX 314Eighth Edition 1985-02-xx [QCU] 315 VAX 11/750, VAX 11/780 [dmr] 316 descended from 4.1c BSD [dmr] 317 descended from 4.1 BSD [44B] 318 scooping-out and replacement of the character-device 319 and networking part by the streams mechanism 320 321Ninth Edition 1986-09-xx [QCU] 322Tenth Edition 1989-10-xx [QCU] 323 3241BSD late 1977 325 1978-03-09 [QCU] 326 PDP-11, Pascal, ex(1) 327 30 free copies of 1BSD sent out 328 35 tapes sold for 50 USD [QCU] 3292BSD mid 1978 [QCU] 1979-05-10 [TUHS] 330 75 2BSD tapes shipped 3312.79BSD 1980-04-xx [TUHS] 3322.8BSD 1981-07-xx [KSJ] 333 3342.8.1BSD 1982-01-xx [QCU] 335 set of performance improvements 3362.9BSD 1983-07-xx [KSJ] 3372.9.1BSD 1983-11-xx [TUHS] 3382.9BSD-Seismo 1985-08-xx [SMS] 3392.10BSD 1987-04-xx [KKK] 3402.10.1BSD 1989-01-xx [SMS] 3412.11BSD 1992-02-xx [SMS] 3422.11BSD rev #430 1999-12-13 [SMS] 343 34432V 1978-1[01]-xx [QCU] 3453BSD late 1979 [QCU] March 1980 [TUHS] 346 virtual memory, page replacement, 347 demand paging 3484.0BSD 1980-10-xx 3494.1BSD 1981-07-08 [DOC] 3504.1aBSD 1982-04-xx 351 alpha release, 100 sites, networking [44B] 3524.1bBSD internal release, fast filesystem [44B] 3534.1cBSD late 1982 354 beta release, IPC [44B] 3554.2BSD 1983-09-xx [QCU] 356 1983-08-03 [DOC] 3574.3BSD 1986-06-xx [QCU] 358 1986-04-05 [KB], [DOC] 3594.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3604.3BSD NET/1 1988-11-xx [QCU] 361 1989-01-01 [DOC] 3624.3BSD Reno 1990-06-29 [QCU], [DOC] 3634.3BSD NET/2 1991-06-28 [QCU], [DOC] 364 365BSD/386 ALPHA 1991-12-xx [BSDI] 366 first code released to people outside BSDI 367386BSD 0.0 1992-02-xx [DOC] 368BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 369BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 370386BSD 0.1 1992-07-28 [DOC] 3714.4BSD Alpha 1992-07-07 372BSD/386 0.9.3 1992-10-xx [BSDI] 373 first external gamma; G customers 374BSD/386 0.9.4 1992-12-xx [BSDI] 375 would have been 1.0 except for request 376 for preliminary injunction 377BSD/386 1.0 1993-03-xx [BSDI] 378 injunction denied; first official release 379NetBSD 0.8 1993-04-20 [NBD] 3804.4BSD 1993-06-01 [USE] 381NetBSD 0.9 1993-08-23 [NBD] 382FreeBSD 1.0 1993-11-01 [FBD] 383FreeBSD 1.0.2 1993-11-14 [FBD] 384 supersedes 1.0 13 days after release. 385BSD/386 1.1 1994-02-xx [BSDI] 3864.4BSD Lite 1994-03-01 [USE] 387FreeBSD 1.1 1994-05-07 [FBD] 388FreeBSD 1.1.5 1994-06-30 [FBD] 389FreeBSD 1.1.5.1 1994-07-05 [FBD] 390 supersedes 1.1.5 5 days after release. 391NetBSD 1.0 1994-10-26 [NBD] 392386BSD 1.0 1994-11-12 [USE] 393FreeBSD 2.0 1994-11-23 [FBD] 394BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 395FreeBSD 2.0.5 1995-06-10 [FBD] 396BSD/OS 2.0.1 1995-06-xx [BSDI] 3974.4BSD Lite Release 2 1995-06-xx [44B] 398 the true final distribution from the CSRG 399FreeBSD 2.1.0 1995-11-19 [FBD] 400NetBSD 1.1 1995-11-26 [NBD] 401BSD/OS 2.1 1996-01-xx [BSDI] 402FreeBSD 2.1.5 1996-07-14 [FBD] 403NetBSD 1.2 1996-10-04 [NBD] 404OpenBSD 2.0 1996-10-18 [OBD] 405FreeBSD 2.1.6 1996-11-16 [FBD] 406FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 407Rhapsody 1997-xx-xx 408FreeBSD 2.1.7 1997-02-20 [FBD] 409BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 410FreeBSD 2.2.0 1997-03-16 [FBD] 411FreeBSD 2.2.1 1997-03-25 [FBD] 412FreeBSD 2.2.2 1997-05-16 [FBD] 413NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 414OpenBSD 2.1 1997-06-01 [OBD] 415FreeBSD 2.2.5 1997-10-22 [FBD] 416OpenBSD 2.2 1997-12-01 [OBD] 417NetBSD 1.3 1998-01-04 [NBD] 418FreeBSD 2.2.6 1998-03-25 [FBD] 419NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 420BSD/OS 3.1 1998-03-xx [BSDI] 421OpenBSD 2.3 1998-05-19 [OBD] 422NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 423FreeBSD 2.2.7 1998-07-22 [FBD] 424BSD/OS 4.0 1998-08-xx [BSDI] 425 2-lock MP support, ELF executables 426FreeBSD 3.0 1998-10-16 [FBD] 427 FreeBSD-3.0 is a snapshot from -current, 428 while 3.1 and 3.2 are from 3.x-stable which 429 was branched quite some time after 3.0-release 430FreeBSD 2.2.8 1998-11-29 [FBD] 431OpenBSD 2.4 1998-12-01 [OBD] 432NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 433FreeBSD 3.1 1999-02-15 [FBD] 434BSD/OS 4.0.1 1999-03-xx [BSDI] 435NetBSD 1.4 1999-05-12 [NBD] 436FreeBSD 3.2 1999-05-17 [FBD] 437OpenBSD 2.5 1999-05-19 [OBD] 438NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 439FreeBSD 3.3 1999-09-17 [FBD] 440OpenBSD 2.6 1999-12-01 [OBD] 441FreeBSD 3.4 1999-12-20 [FBD] 442BSD/OS 4.1 1999-12-xx [BSDI] 443FreeBSD 4.0 2000-03-13 [FBD] 444NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 445OpenBSD 2.7 2000-06-15 [OBD] 446FreeBSD 3.5 2000-06-24 [FBD] 447FreeBSD 4.1 2000-07-27 [FBD] 448FreeBSD 3.5.1 2000-07-28 [FBD] 449FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 450FreeBSD 4.2 2000-11-21 [FBD] 451NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 452BSD/OS 4.2 2000-11-29 [BSDI] 453OpenBSD 2.8 2000-12-01 [OBD] 454NetBSD 1.5 2000-12-06 [NBD] 455Mac OS X 10.0 2001-03-24 [APL] 456FreeBSD 4.3 2001-04-20 [FBD] 457OpenBSD 2.9 2001-06-01 [OBD] 458NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 459NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 460FreeBSD 4.4 2001-09-18 [FBD] 461Mac OS X 10.1 2001-09-29 [APL] 462OpenBSD 3.0 2001-12-01 [OBD] 463FreeBSD 4.5 2002-01-29 [FBD] 464BSD/OS 4.3 2002-03-14 [WRS] 465OpenBSD 3.1 2002-05-19 [OBD] 466FreeBSD 4.6 2002-06-15 [FBD] 467NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 468FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 469Mac OS X 10.2 2002-08-23 [APL] 470NetBSD 1.6 2002-09-14 [NBD] 471FreeBSD 4.7 2002-10-08 [FBD] 472OpenBSD 3.2 2002-11-01 [OBD] 473FreeBSD 5.0 2003-01-17 [FBD] 474 FreeBSD 5.0 is a separate branch off of 475 -current, similar to 3.0. 476FreeBSD 4.8 2003-04-03 [FBD] 477NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 478OpenBSD 3.3 2003-05-01 [OBD] 479BSD/OS 5.0 2003-05-?? [WRS] 480FreeBSD 5.1 2003-06-09 [FBD] 481Mac OS X 10.3 2003-10-24 [APL] 482FreeBSD 4.9 2003-10-28 [FBD] 483BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 484OpenBSD 3.4 2003-11-01 [OBD] 485FreeBSD 5.2 2004-01-12 [FBD] 486FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 487NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 488OpenBSD 3.5 2004-04-01 [OBD] 489FreeBSD 4.10 2004-05-27 [FBD] 490DragonFly 1.0 2004-07-12 [DFB] 491OpenBSD 3.6 2004-10-29 [OBD] 492FreeBSD 5.3 2004-11-06 [FBD] 493NetBSD 2.0 2004-12-09 [NBD] 494FreeBSD 4.11 2005-01-25 [FBD] 495DragonFly 1.2.0 2005-04-08 [DFB] 496NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 497Mac OS X 10.4 2005-04-29 [APL] 498FreeBSD 5.4 2005-05-09 [FBD] 499OpenBSD 3.7 2005-05-19 [OBD] 500NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 501OpenBSD 3.8 2005-11-01 [OBD] 502FreeBSD 6.0 2005-11-01 [FBD] 503NetBSD 2.1 2005-11-02 [NBD] 504NetBSD 3.0 2005-12-23 [NBD] 505DragonFly 1.4.0 2006-01-08 [DFB] 506OpenBSD 3.9 2006-05-01 [OBD] 507FreeBSD 6.1 2006-05-08 [FBD] 508FreeBSD 5.5 2006-05-25 [FBD] 509NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 510DragonFly 1.6.0 2006-07-24 [DFB] 511OpenBSD 4.0 2006-11-01 [OBD] 512NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 513NetBSD 3.1 2006-11-04 [NBD] 514FreeBSD 6.2 2007-01-15 [FBD] 515DragonFly 1.8.0 2007-01-30 [DFB] 516OpenBSD 4.1 2007-05-01 [OBD] 517DragonFly 1.10.0 2007-08-06 [DFB] 518Mac OS X 10.5 2007-10-26 [APL] 519OpenBSD 4.2 2007-11-01 [OBD] 520NetBSD 4.0 2007-12-19 [NBD] 521FreeBSD 6.3 2008-01-18 [FBD] 522DragonFly 1.12.0 2008-02-26 [DFB] 523FreeBSD 7.0 2008-02-27 [FBD] 524OpenBSD 4.3 2008-05-01 [OBD] 525DragonFly 2.0.0 2008-07-21 [DFB] 526OpenBSD 4.4 2008-11-01 [OBD] 527FreeBSD 6.4 2008-11-28 [FBD] 528FreeBSD 7.1 2009-01-04 [FBD] 529DragonFly 2.2.0 2009-02-17 [DFB] 530NetBSD 5.0 2009-04-29 [NBD] 531OpenBSD 4.5 2009-05-01 [OBD] 532FreeBSD 7.2 2009-05-04 [FBD] 533Mac OS X 10.6 2009-06-08 [APL] 534DragonFly 2.4.0 2009-09-16 [DFB] 535OpenBSD 4.6 2009-10-18 [OBD] 536FreeBSD 8.0 2009-11-26 [FBD] 537FreeBSD 7.3 2010-03-23 [FBD] 538DragonFly 2.6.0 2010-03-28 [DFB] 539OpenBSD 4.7 2010-05-19 [OBD] 540FreeBSD 8.1 2010-07-24 [FBD] 541DragonFly 2.8.2 2010-10-30 [DFB] 542OpenBSD 4.8 2010-11-01 [OBD] 543NetBSD 5.1 2010-11-19 [NBD] 544FreeBSD 7.4 2011-02-24 [FBD] 545FreeBSD 8.2 2011-02-24 [FBD] 546DragonFly 2.10.1 2011-04-26 [DFB] 547OpenBSD 4.9 2011-05-01 [OBD] 548Mac OS X 10.7 2011-07-20 [APL] 549OpenBSD 5.0 2011-11-01 [OBD] 550FreeBSD 9.0 2012-01-12 [FBD] 551DragonFly 3.0.1 2012-02-21 [DFB] 552FreeBSD 8.3 2012-04-18 [FBD] 553OpenBSD 5.1 2012-05-01 [OBD] 554Mac OS X 10.8 2012-07-25 [APL] 555NetBSD 6.0 2012-10-17 [NBD] 556OpenBSD 5.2 2012-11-01 [OBD] 557DragonFly 3.2.1 2012-11-02 [DFB] 558 559Bibliography 560------------------------ 561 562Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 563Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 564System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 565 566Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 567Company, Inc., 1994. ISBN 0-201-54777-5 568 569McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 570Quarterman. The Design and Implementation of the 4.4BSD Operating 571System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 572 573McKusick, Marshall Kirk, George Neville-Neil. The Design and 574Implementation of the FreeBSD Operating System. 575Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 576 577Doug McIlroy. Research Unix Reader. 578 579Michael G. Brown. The Role of BSD in the Development of Unix. 580Presented to the Tasmanian Unix Special Interest Group of the 581Australian Computer Society, Hobart, August 1993. 582 583Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 584URL: http://www.byte.com/art/9410/sec8/art3.htm 585 586Andreas Klemm, Lars Köller. If you're going to San Francisco ... 587Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 588 589BSD Release Announcements collection. 590URL: http://www.FreeBSD.org/releases/ 591 592BSD Hypertext Man Pages 593URL: http://www.FreeBSD.org/cgi/man.cgi 594 595UNIX history graphing project 596URL: http://minnie.tuhs.org/Unix_History/index.html 597 598UNIX history 599URL: http://www.levenez.com/unix/ 600 601James Howard: The BSD Family Tree 602URL: http://ezine.daemonnews.org/200104/bsd_family.html 603("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 604 605 606Acknowledgments 607--------------- 608 609Josh Gilliam for suggestions, bug fixes, and finding very old 610original BSD announcements from Usenet or tapes. 611 612Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 613 614-- 615Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 616URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree 617 618$FreeBSD: src/share/misc/bsd-family-tree,v 1.159 2012/11/03 19:26:08 maxim Exp $ 619