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 | | | | | 258FreeBSD 10 -current | NetBSD -current OpenBSD -current | 259 | | | | | 260 v v v v v 261 262Time 263---------------- 264 265Time tolerance +/- 6 months, depending on which book/article you read; if it 266was the announcement in Usenet or if it was available as tape. 267 268[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 269 and John Quarterman. The Design and Implementation of 270 the 4.4BSD Operating System. 271[APL] Apple website [http://www.apple.com/macosx/] 272[BSDI] Berkeley Software Design, Inc. 273[DFB] DragonFlyBSD Project, The. 274[DOC] README, COPYRIGHT on tape. 275[FBD] FreeBSD Project, The. 276[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 277 Volume 11, Info 4, April, 1987. 278[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 279 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 280[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 281 Changes in the Kernel in 2.9BSD. Second Berkeley Software 282 Distribution UNIX Version 2.9, July, 1983. 283[NBD] NetBSD Project, The. 284[OBD] OpenBSD Project, The. 285[QCU] Salus, Peter H. A quarter century of UNIX. 286[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 287[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 288[USE] Usenet announcement. 289[WRS] Wind River Systems, Inc. 290[dmr] Dennis Ritchie, via E-Mail 291 292Multics 1965 293UNIX Summer 1969 294 DEC PDP-7 295First Edition 1971-11-03 [QCU] 296 DEC PDP-11/20, Assembler 297Second Edition 1972-06-12 [QCU] 298 10 UNIX installations 299Third Edition 1973-02-xx [QCU] 300 Pipes, 16 installations 301Fourth Edition 1973-11-xx [QCU] 302 rewriting in C effected, 303 above 30 installations 304Fifth Edition 1974-06-xx [QCU] 305 above 50 installations 306Sixth Edition 1975-05-xx [QCU] 307 port to DEC Vax 308Seventh Edition 1979-01-xx [QCU] 309 first portable UNIX 310Eighth Edition 1985-02-xx [QCU] 311 VAX 11/750, VAX 11/780 [dmr] 312 descended from 4.1c BSD [dmr] 313 descended from 4.1 BSD [44B] 314 scooping-out and replacement of the character-device 315 and networking part by the streams mechanism 316 317Ninth Edition 1986-09-xx [QCU] 318Tenth Edition 1989-10-xx [QCU] 319 3201BSD late 1977 321 1978-03-09 [QCU] 322 PDP-11, Pascal, ex(1) 323 30 free copies of 1BSD sent out 324 35 tapes sold for 50 USD [QCU] 3252BSD mid 1978 [QCU] 1979-05-10 [TUHS] 326 75 2BSD tapes shipped 3272.79BSD 1980-04-xx [TUHS] 3282.8BSD 1981-07-xx [KSJ] 329 3302.8.1BSD 1982-01-xx [QCU] 331 set of performance improvements 3322.9BSD 1983-07-xx [KSJ] 3332.9.1BSD 1983-11-xx [TUHS] 3342.9BSD-Seismo 1985-08-xx [SMS] 3352.10BSD 1987-04-xx [KKK] 3362.10.1BSD 1989-01-xx [SMS] 3372.11BSD 1992-02-xx [SMS] 3382.11BSD rev #430 1999-12-13 [SMS] 339 34032V 1978-1[01]-xx [QCU] 3413BSD late 1979 [QCU] March 1980 [TUHS] 342 virtual memory, page replacement, 343 demand paging 3444.0BSD 1980-10-xx 3454.1BSD 1981-07-08 [DOC] 3464.1aBSD 1982-04-xx 347 alpha release, 100 sites, networking [44B] 3484.1bBSD internal release, fast filesystem [44B] 3494.1cBSD late 1982 350 beta release, IPC [44B] 3514.2BSD 1983-09-xx [QCU] 352 1983-08-03 [DOC] 3534.3BSD 1986-06-xx [QCU] 354 1986-04-05 [KB], [DOC] 3554.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3564.3BSD NET/1 1988-11-xx [QCU] 357 1989-01-01 [DOC] 3584.3BSD Reno 1990-06-29 [QCU], [DOC] 3594.3BSD NET/2 1991-06-28 [QCU], [DOC] 360 361BSD/386 ALPHA 1991-12-xx [BSDI] 362 first code released to people outside BSDI 363386BSD 0.0 1992-02-xx [DOC] 364BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 365BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 366386BSD 0.1 1992-07-28 [DOC] 3674.4BSD Alpha 1992-07-07 368BSD/386 0.9.3 1992-10-xx [BSDI] 369 first external gamma; G customers 370BSD/386 0.9.4 1992-12-xx [BSDI] 371 would have been 1.0 except for request 372 for preliminary injunction 373BSD/386 1.0 1993-03-xx [BSDI] 374 injunction denied; first official release 375NetBSD 0.8 1993-04-20 [NBD] 3764.4BSD 1993-06-01 [USE] 377NetBSD 0.9 1993-08-23 [NBD] 378FreeBSD 1.0 1993-11-01 [FBD] 379FreeBSD 1.0.2 1993-11-14 [FBD] 380 supersedes 1.0 13 days after release. 381BSD/386 1.1 1994-02-xx [BSDI] 3824.4BSD Lite 1994-03-01 [USE] 383FreeBSD 1.1 1994-05-07 [FBD] 384FreeBSD 1.1.5 1994-06-30 [FBD] 385FreeBSD 1.1.5.1 1994-07-05 [FBD] 386 supersedes 1.1.5 5 days after release. 387NetBSD 1.0 1994-10-26 [NBD] 388386BSD 1.0 1994-11-12 [USE] 389FreeBSD 2.0 1994-11-23 [FBD] 390BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 391FreeBSD 2.0.5 1995-06-10 [FBD] 392BSD/OS 2.0.1 1995-06-xx [BSDI] 3934.4BSD Lite Release 2 1995-06-xx [44B] 394 the true final distribution from the CSRG 395FreeBSD 2.1.0 1995-11-19 [FBD] 396NetBSD 1.1 1995-11-26 [NBD] 397BSD/OS 2.1 1996-01-xx [BSDI] 398FreeBSD 2.1.5 1996-07-14 [FBD] 399NetBSD 1.2 1996-10-04 [NBD] 400OpenBSD 2.0 1996-10-18 [OBD] 401FreeBSD 2.1.6 1996-11-16 [FBD] 402FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 403Rhapsody 1997-xx-xx 404FreeBSD 2.1.7 1997-02-20 [FBD] 405BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 406FreeBSD 2.2.0 1997-03-16 [FBD] 407FreeBSD 2.2.1 1997-03-25 [FBD] 408FreeBSD 2.2.2 1997-05-16 [FBD] 409NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 410OpenBSD 2.1 1997-06-01 [OBD] 411FreeBSD 2.2.5 1997-10-22 [FBD] 412OpenBSD 2.2 1997-12-01 [OBD] 413NetBSD 1.3 1998-01-04 [NBD] 414FreeBSD 2.2.6 1998-03-25 [FBD] 415NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 416BSD/OS 3.1 1998-03-xx [BSDI] 417OpenBSD 2.3 1998-05-19 [OBD] 418NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 419FreeBSD 2.2.7 1998-07-22 [FBD] 420BSD/OS 4.0 1998-08-xx [BSDI] 421 2-lock MP support, ELF executables 422FreeBSD 3.0 1998-10-16 [FBD] 423 FreeBSD-3.0 is a snapshot from -current, 424 while 3.1 and 3.2 are from 3.x-stable which 425 was branched quite some time after 3.0-release 426FreeBSD 2.2.8 1998-11-29 [FBD] 427OpenBSD 2.4 1998-12-01 [OBD] 428NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 429FreeBSD 3.1 1999-02-15 [FBD] 430BSD/OS 4.0.1 1999-03-xx [BSDI] 431NetBSD 1.4 1999-05-12 [NBD] 432FreeBSD 3.2 1999-05-17 [FBD] 433OpenBSD 2.5 1999-05-19 [OBD] 434NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 435FreeBSD 3.3 1999-09-17 [FBD] 436OpenBSD 2.6 1999-12-01 [OBD] 437FreeBSD 3.4 1999-12-20 [FBD] 438BSD/OS 4.1 1999-12-xx [BSDI] 439FreeBSD 4.0 2000-03-13 [FBD] 440NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 441OpenBSD 2.7 2000-06-15 [OBD] 442FreeBSD 3.5 2000-06-24 [FBD] 443FreeBSD 4.1 2000-07-27 [FBD] 444FreeBSD 3.5.1 2000-07-28 [FBD] 445FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 446FreeBSD 4.2 2000-11-21 [FBD] 447NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 448BSD/OS 4.2 2000-11-29 [BSDI] 449OpenBSD 2.8 2000-12-01 [OBD] 450NetBSD 1.5 2000-12-06 [NBD] 451Mac OS X 10.0 2001-03-24 [APL] 452FreeBSD 4.3 2001-04-20 [FBD] 453OpenBSD 2.9 2001-06-01 [OBD] 454NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 455NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 456FreeBSD 4.4 2001-09-18 [FBD] 457Mac OS X 10.1 2001-09-29 [APL] 458OpenBSD 3.0 2001-12-01 [OBD] 459FreeBSD 4.5 2002-01-29 [FBD] 460BSD/OS 4.3 2002-03-14 [WRS] 461OpenBSD 3.1 2002-05-19 [OBD] 462FreeBSD 4.6 2002-06-15 [FBD] 463NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 464FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 465Mac OS X 10.2 2002-08-23 [APL] 466NetBSD 1.6 2002-09-14 [NBD] 467FreeBSD 4.7 2002-10-08 [FBD] 468OpenBSD 3.2 2002-11-01 [OBD] 469FreeBSD 5.0 2003-01-17 [FBD] 470 FreeBSD 5.0 is a separate branch off of 471 -current, similar to 3.0. 472FreeBSD 4.8 2003-04-03 [FBD] 473NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 474OpenBSD 3.3 2003-05-01 [OBD] 475BSD/OS 5.0 2003-05-?? [WRS] 476FreeBSD 5.1 2003-06-09 [FBD] 477Mac OS X 10.3 2003-10-24 [APL] 478FreeBSD 4.9 2003-10-28 [FBD] 479BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 480OpenBSD 3.4 2003-11-01 [OBD] 481FreeBSD 5.2 2004-01-12 [FBD] 482FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 483NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 484OpenBSD 3.5 2004-04-01 [OBD] 485FreeBSD 4.10 2004-05-27 [FBD] 486DragonFly 1.0 2004-07-12 [DFB] 487OpenBSD 3.6 2004-10-29 [OBD] 488FreeBSD 5.3 2004-11-06 [FBD] 489NetBSD 2.0 2004-12-09 [NBD] 490FreeBSD 4.11 2005-01-25 [FBD] 491DragonFly 1.2.0 2005-04-08 [DFB] 492NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 493Mac OS X 10.4 2005-04-29 [APL] 494FreeBSD 5.4 2005-05-09 [FBD] 495OpenBSD 3.7 2005-05-19 [OBD] 496NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 497OpenBSD 3.8 2005-11-01 [OBD] 498FreeBSD 6.0 2005-11-01 [FBD] 499NetBSD 2.1 2005-11-02 [NBD] 500NetBSD 3.0 2005-12-23 [NBD] 501DragonFly 1.4.0 2006-01-08 [DFB] 502OpenBSD 3.9 2006-05-01 [OBD] 503FreeBSD 6.1 2006-05-08 [FBD] 504FreeBSD 5.5 2006-05-25 [FBD] 505NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 506DragonFly 1.6.0 2006-07-24 [DFB] 507OpenBSD 4.0 2006-11-01 [OBD] 508NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 509NetBSD 3.1 2006-11-04 [NBD] 510FreeBSD 6.2 2007-01-15 [FBD] 511DragonFly 1.8.0 2007-01-30 [DFB] 512OpenBSD 4.1 2007-05-01 [OBD] 513DragonFly 1.10.0 2007-08-06 [DFB] 514Mac OS X 10.5 2007-10-26 [APL] 515OpenBSD 4.2 2007-11-01 [OBD] 516NetBSD 4.0 2007-12-19 [NBD] 517FreeBSD 6.3 2008-01-18 [FBD] 518DragonFly 1.12.0 2008-02-26 [DFB] 519FreeBSD 7.0 2008-02-27 [FBD] 520OpenBSD 4.3 2008-05-01 [OBD] 521DragonFly 2.0.0 2008-07-21 [DFB] 522OpenBSD 4.4 2008-11-01 [OBD] 523FreeBSD 6.4 2008-11-28 [FBD] 524FreeBSD 7.1 2009-01-04 [FBD] 525DragonFly 2.2.0 2009-02-17 [DFB] 526NetBSD 5.0 2009-04-29 [NBD] 527OpenBSD 4.5 2009-05-01 [OBD] 528FreeBSD 7.2 2009-05-04 [FBD] 529Mac OS X 10.6 2009-06-08 [APL] 530DragonFly 2.4.0 2009-09-16 [DFB] 531OpenBSD 4.6 2009-10-18 [OBD] 532FreeBSD 8.0 2009-11-26 [FBD] 533FreeBSD 7.3 2010-03-23 [FBD] 534DragonFly 2.6.0 2010-03-28 [DFB] 535OpenBSD 4.7 2010-05-19 [OBD] 536FreeBSD 8.1 2010-07-24 [FBD] 537DragonFly 2.8.2 2010-10-30 [DFB] 538OpenBSD 4.8 2010-11-01 [OBD] 539NetBSD 5.1 2010-11-19 [NBD] 540FreeBSD 7.4 2011-02-24 [FBD] 541FreeBSD 8.2 2011-02-24 [FBD] 542DragonFly 2.10.1 2011-04-26 [DFB] 543OpenBSD 4.9 2011-05-01 [OBD] 544Mac OS X 10.7 2011-07-20 [APL] 545OpenBSD 5.0 2011-11-01 [OBD] 546FreeBSD 9.0 2012-01-12 [FBD] 547DragonFly 3.0.1 2012-02-21 [DFB] 548FreeBSD 8.3 2012-04-18 [FBD] 549OpenBSD 5.1 2012-05-01 [OBD] 550 551Bibliography 552------------------------ 553 554Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 555Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 556System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 557 558Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 559Company, Inc., 1994. ISBN 0-201-54777-5 560 561McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 562Quarterman. The Design and Implementation of the 4.4BSD Operating 563System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 564 565McKusick, Marshall Kirk, George Neville-Neil. The Design and 566Implementation of the FreeBSD Operating System. 567Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 568 569Doug McIlroy. Research Unix Reader. 570 571Michael G. Brown. The Role of BSD in the Development of Unix. 572Presented to the Tasmanian Unix Special Interest Group of the 573Australian Computer Society, Hobart, August 1993. 574 575Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 576URL: http://www.byte.com/art/9410/sec8/art3.htm 577 578Andreas Klemm, Lars Köller. If you're going to San Francisco ... 579Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 580 581BSD Release Announcements collection. 582URL: http://www.FreeBSD.org/releases/ 583 584BSD Hypertext Man Pages 585URL: http://www.FreeBSD.org/cgi/man.cgi 586 587UNIX history graphing project 588URL: http://minnie.tuhs.org/Unix_History/index.html 589 590UNIX history 591URL: http://www.levenez.com/unix/ 592 593James Howard: The BSD Family Tree 594URL: http://ezine.daemonnews.org/200104/bsd_family.html 595("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 596 597 598Acknowledgments 599--------------- 600 601Josh Gilliam for suggestions, bug fixes, and finding very old 602original BSD announcements from Usenet or tapes. 603 604Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 605 606-- 607Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 608URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree 609 610$FreeBSD: src/share/misc/bsd-family-tree,v 1.155 2012/05/09 16:06:20 pluknet Exp $ 611