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 | | 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 | | | | 262 | 9.1 | | | | 263 | | | | | 264FreeBSD 10 -current | NetBSD -current OpenBSD -current | 265 | | | | | 266 v v v v v 267 268Time 269---------------- 270 271Time tolerance +/- 6 months, depending on which book/article you read; if it 272was the announcement in Usenet or if it was available as tape. 273 274[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 275 and John Quarterman. The Design and Implementation of 276 the 4.4BSD Operating System. 277[APL] Apple website [http://www.apple.com/macosx/] 278[BSDI] Berkeley Software Design, Inc. 279[DFB] DragonFlyBSD Project, The. 280[DOC] README, COPYRIGHT on tape. 281[FBD] FreeBSD Project, The. 282[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 283 Volume 11, Info 4, April, 1987. 284[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 285 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 286[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 287 Changes in the Kernel in 2.9BSD. Second Berkeley Software 288 Distribution UNIX Version 2.9, July, 1983. 289[NBD] NetBSD Project, The. 290[OBD] OpenBSD Project, The. 291[QCU] Salus, Peter H. A quarter century of UNIX. 292[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 293[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 294[USE] Usenet announcement. 295[WRS] Wind River Systems, Inc. 296[dmr] Dennis Ritchie, via E-Mail 297 298Multics 1965 299UNIX Summer 1969 300 DEC PDP-7 301First Edition 1971-11-03 [QCU] 302 DEC PDP-11/20, Assembler 303Second Edition 1972-06-12 [QCU] 304 10 UNIX installations 305Third Edition 1973-02-xx [QCU] 306 Pipes, 16 installations 307Fourth Edition 1973-11-xx [QCU] 308 rewriting in C effected, 309 above 30 installations 310Fifth Edition 1974-06-xx [QCU] 311 above 50 installations 312Sixth Edition 1975-05-xx [QCU] 313 port to DEC Vax 314Seventh Edition 1979-01-xx [QCU] 315 first portable UNIX 316Eighth Edition 1985-02-xx [QCU] 317 VAX 11/750, VAX 11/780 [dmr] 318 descended from 4.1c BSD [dmr] 319 descended from 4.1 BSD [44B] 320 scooping-out and replacement of the character-device 321 and networking part by the streams mechanism 322 323Ninth Edition 1986-09-xx [QCU] 324Tenth Edition 1989-10-xx [QCU] 325 3261BSD late 1977 327 1978-03-09 [QCU] 328 PDP-11, Pascal, ex(1) 329 30 free copies of 1BSD sent out 330 35 tapes sold for 50 USD [QCU] 3312BSD mid 1978 [QCU] 1979-05-10 [TUHS] 332 75 2BSD tapes shipped 3332.79BSD 1980-04-xx [TUHS] 3342.8BSD 1981-07-xx [KSJ] 335 3362.8.1BSD 1982-01-xx [QCU] 337 set of performance improvements 3382.9BSD 1983-07-xx [KSJ] 3392.9.1BSD 1983-11-xx [TUHS] 3402.9BSD-Seismo 1985-08-xx [SMS] 3412.10BSD 1987-04-xx [KKK] 3422.10.1BSD 1989-01-xx [SMS] 3432.11BSD 1992-02-xx [SMS] 3442.11BSD rev #430 1999-12-13 [SMS] 345 34632V 1978-1[01]-xx [QCU] 3473BSD late 1979 [QCU] March 1980 [TUHS] 348 virtual memory, page replacement, 349 demand paging 3504.0BSD 1980-10-xx 3514.1BSD 1981-07-08 [DOC] 3524.1aBSD 1982-04-xx 353 alpha release, 100 sites, networking [44B] 3544.1bBSD internal release, fast filesystem [44B] 3554.1cBSD late 1982 356 beta release, IPC [44B] 3574.2BSD 1983-09-xx [QCU] 358 1983-08-03 [DOC] 3594.3BSD 1986-06-xx [QCU] 360 1986-04-05 [KB], [DOC] 3614.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3624.3BSD NET/1 1988-11-xx [QCU] 363 1989-01-01 [DOC] 3644.3BSD Reno 1990-06-29 [QCU], [DOC] 3654.3BSD NET/2 1991-06-28 [QCU], [DOC] 366 367BSD/386 ALPHA 1991-12-xx [BSDI] 368 first code released to people outside BSDI 369386BSD 0.0 1992-02-xx [DOC] 370BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 371BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 372386BSD 0.1 1992-07-28 [DOC] 3734.4BSD Alpha 1992-07-07 374BSD/386 0.9.3 1992-10-xx [BSDI] 375 first external gamma; G customers 376BSD/386 0.9.4 1992-12-xx [BSDI] 377 would have been 1.0 except for request 378 for preliminary injunction 379BSD/386 1.0 1993-03-xx [BSDI] 380 injunction denied; first official release 381NetBSD 0.8 1993-04-20 [NBD] 3824.4BSD 1993-06-01 [USE] 383NetBSD 0.9 1993-08-23 [NBD] 384FreeBSD 1.0 1993-11-01 [FBD] 385FreeBSD 1.0.2 1993-11-14 [FBD] 386 supersedes 1.0 13 days after release. 387BSD/386 1.1 1994-02-xx [BSDI] 3884.4BSD Lite 1994-03-01 [USE] 389FreeBSD 1.1 1994-05-07 [FBD] 390FreeBSD 1.1.5 1994-06-30 [FBD] 391FreeBSD 1.1.5.1 1994-07-05 [FBD] 392 supersedes 1.1.5 5 days after release. 393NetBSD 1.0 1994-10-26 [NBD] 394386BSD 1.0 1994-11-12 [USE] 395FreeBSD 2.0 1994-11-23 [FBD] 396BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 397FreeBSD 2.0.5 1995-06-10 [FBD] 398BSD/OS 2.0.1 1995-06-xx [BSDI] 3994.4BSD Lite Release 2 1995-06-xx [44B] 400 the true final distribution from the CSRG 401FreeBSD 2.1.0 1995-11-19 [FBD] 402NetBSD 1.1 1995-11-26 [NBD] 403BSD/OS 2.1 1996-01-xx [BSDI] 404FreeBSD 2.1.5 1996-07-14 [FBD] 405NetBSD 1.2 1996-10-04 [NBD] 406OpenBSD 2.0 1996-10-18 [OBD] 407FreeBSD 2.1.6 1996-11-16 [FBD] 408FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 409Rhapsody 1997-xx-xx 410FreeBSD 2.1.7 1997-02-20 [FBD] 411BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 412FreeBSD 2.2.0 1997-03-16 [FBD] 413FreeBSD 2.2.1 1997-03-25 [FBD] 414FreeBSD 2.2.2 1997-05-16 [FBD] 415NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 416OpenBSD 2.1 1997-06-01 [OBD] 417FreeBSD 2.2.5 1997-10-22 [FBD] 418OpenBSD 2.2 1997-12-01 [OBD] 419NetBSD 1.3 1998-01-04 [NBD] 420FreeBSD 2.2.6 1998-03-25 [FBD] 421NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 422BSD/OS 3.1 1998-03-xx [BSDI] 423OpenBSD 2.3 1998-05-19 [OBD] 424NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 425FreeBSD 2.2.7 1998-07-22 [FBD] 426BSD/OS 4.0 1998-08-xx [BSDI] 427 2-lock MP support, ELF executables 428FreeBSD 3.0 1998-10-16 [FBD] 429 FreeBSD-3.0 is a snapshot from -current, 430 while 3.1 and 3.2 are from 3.x-stable which 431 was branched quite some time after 3.0-release 432FreeBSD 2.2.8 1998-11-29 [FBD] 433OpenBSD 2.4 1998-12-01 [OBD] 434NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 435FreeBSD 3.1 1999-02-15 [FBD] 436BSD/OS 4.0.1 1999-03-xx [BSDI] 437NetBSD 1.4 1999-05-12 [NBD] 438FreeBSD 3.2 1999-05-17 [FBD] 439OpenBSD 2.5 1999-05-19 [OBD] 440NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 441FreeBSD 3.3 1999-09-17 [FBD] 442OpenBSD 2.6 1999-12-01 [OBD] 443FreeBSD 3.4 1999-12-20 [FBD] 444BSD/OS 4.1 1999-12-xx [BSDI] 445FreeBSD 4.0 2000-03-13 [FBD] 446NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 447OpenBSD 2.7 2000-06-15 [OBD] 448FreeBSD 3.5 2000-06-24 [FBD] 449FreeBSD 4.1 2000-07-27 [FBD] 450FreeBSD 3.5.1 2000-07-28 [FBD] 451FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 452FreeBSD 4.2 2000-11-21 [FBD] 453NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 454BSD/OS 4.2 2000-11-29 [BSDI] 455OpenBSD 2.8 2000-12-01 [OBD] 456NetBSD 1.5 2000-12-06 [NBD] 457Mac OS X 10.0 2001-03-24 [APL] 458FreeBSD 4.3 2001-04-20 [FBD] 459OpenBSD 2.9 2001-06-01 [OBD] 460NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 461NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 462FreeBSD 4.4 2001-09-18 [FBD] 463Mac OS X 10.1 2001-09-29 [APL] 464OpenBSD 3.0 2001-12-01 [OBD] 465FreeBSD 4.5 2002-01-29 [FBD] 466BSD/OS 4.3 2002-03-14 [WRS] 467OpenBSD 3.1 2002-05-19 [OBD] 468FreeBSD 4.6 2002-06-15 [FBD] 469NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 470FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 471Mac OS X 10.2 2002-08-23 [APL] 472NetBSD 1.6 2002-09-14 [NBD] 473FreeBSD 4.7 2002-10-08 [FBD] 474OpenBSD 3.2 2002-11-01 [OBD] 475FreeBSD 5.0 2003-01-17 [FBD] 476 FreeBSD 5.0 is a separate branch off of 477 -current, similar to 3.0. 478FreeBSD 4.8 2003-04-03 [FBD] 479NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 480OpenBSD 3.3 2003-05-01 [OBD] 481BSD/OS 5.0 2003-05-?? [WRS] 482FreeBSD 5.1 2003-06-09 [FBD] 483Mac OS X 10.3 2003-10-24 [APL] 484FreeBSD 4.9 2003-10-28 [FBD] 485BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 486OpenBSD 3.4 2003-11-01 [OBD] 487FreeBSD 5.2 2004-01-12 [FBD] 488FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 489NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 490OpenBSD 3.5 2004-04-01 [OBD] 491FreeBSD 4.10 2004-05-27 [FBD] 492DragonFly 1.0 2004-07-12 [DFB] 493OpenBSD 3.6 2004-10-29 [OBD] 494FreeBSD 5.3 2004-11-06 [FBD] 495NetBSD 2.0 2004-12-09 [NBD] 496FreeBSD 4.11 2005-01-25 [FBD] 497DragonFly 1.2.0 2005-04-08 [DFB] 498NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 499Mac OS X 10.4 2005-04-29 [APL] 500FreeBSD 5.4 2005-05-09 [FBD] 501OpenBSD 3.7 2005-05-19 [OBD] 502NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 503OpenBSD 3.8 2005-11-01 [OBD] 504FreeBSD 6.0 2005-11-01 [FBD] 505NetBSD 2.1 2005-11-02 [NBD] 506NetBSD 3.0 2005-12-23 [NBD] 507DragonFly 1.4.0 2006-01-08 [DFB] 508OpenBSD 3.9 2006-05-01 [OBD] 509FreeBSD 6.1 2006-05-08 [FBD] 510FreeBSD 5.5 2006-05-25 [FBD] 511NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 512DragonFly 1.6.0 2006-07-24 [DFB] 513OpenBSD 4.0 2006-11-01 [OBD] 514NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 515NetBSD 3.1 2006-11-04 [NBD] 516FreeBSD 6.2 2007-01-15 [FBD] 517DragonFly 1.8.0 2007-01-30 [DFB] 518OpenBSD 4.1 2007-05-01 [OBD] 519DragonFly 1.10.0 2007-08-06 [DFB] 520Mac OS X 10.5 2007-10-26 [APL] 521OpenBSD 4.2 2007-11-01 [OBD] 522NetBSD 4.0 2007-12-19 [NBD] 523FreeBSD 6.3 2008-01-18 [FBD] 524DragonFly 1.12.0 2008-02-26 [DFB] 525FreeBSD 7.0 2008-02-27 [FBD] 526OpenBSD 4.3 2008-05-01 [OBD] 527DragonFly 2.0.0 2008-07-21 [DFB] 528OpenBSD 4.4 2008-11-01 [OBD] 529FreeBSD 6.4 2008-11-28 [FBD] 530FreeBSD 7.1 2009-01-04 [FBD] 531DragonFly 2.2.0 2009-02-17 [DFB] 532NetBSD 5.0 2009-04-29 [NBD] 533OpenBSD 4.5 2009-05-01 [OBD] 534FreeBSD 7.2 2009-05-04 [FBD] 535Mac OS X 10.6 2009-06-08 [APL] 536DragonFly 2.4.0 2009-09-16 [DFB] 537OpenBSD 4.6 2009-10-18 [OBD] 538FreeBSD 8.0 2009-11-26 [FBD] 539FreeBSD 7.3 2010-03-23 [FBD] 540DragonFly 2.6.0 2010-03-28 [DFB] 541OpenBSD 4.7 2010-05-19 [OBD] 542FreeBSD 8.1 2010-07-24 [FBD] 543DragonFly 2.8.2 2010-10-30 [DFB] 544OpenBSD 4.8 2010-11-01 [OBD] 545NetBSD 5.1 2010-11-19 [NBD] 546FreeBSD 7.4 2011-02-24 [FBD] 547FreeBSD 8.2 2011-02-24 [FBD] 548DragonFly 2.10.1 2011-04-26 [DFB] 549OpenBSD 4.9 2011-05-01 [OBD] 550Mac OS X 10.7 2011-07-20 [APL] 551OpenBSD 5.0 2011-11-01 [OBD] 552FreeBSD 9.0 2012-01-12 [FBD] 553DragonFly 3.0.1 2012-02-21 [DFB] 554FreeBSD 8.3 2012-04-18 [FBD] 555OpenBSD 5.1 2012-05-01 [OBD] 556Mac OS X 10.8 2012-07-25 [APL] 557NetBSD 6.0 2012-10-17 [NBD] 558OpenBSD 5.2 2012-11-01 [OBD] 559DragonFly 3.2.1 2012-11-02 [DFB] 560FreeBSD 9.1 2012-12-30 [FBD] 561 562Bibliography 563------------------------ 564 565Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 566Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 567System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 568 569Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 570Company, Inc., 1994. ISBN 0-201-54777-5 571 572McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 573Quarterman. The Design and Implementation of the 4.4BSD Operating 574System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 575 576McKusick, Marshall Kirk, George Neville-Neil. The Design and 577Implementation of the FreeBSD Operating System. 578Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 579 580Doug McIlroy. Research Unix Reader. 581 582Michael G. Brown. The Role of BSD in the Development of Unix. 583Presented to the Tasmanian Unix Special Interest Group of the 584Australian Computer Society, Hobart, August 1993. 585 586Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 587URL: http://www.byte.com/art/9410/sec8/art3.htm 588 589Andreas Klemm, Lars Köller. If you're going to San Francisco ... 590Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 591 592BSD Release Announcements collection. 593URL: http://www.FreeBSD.org/releases/ 594 595BSD Hypertext Man Pages 596URL: http://www.FreeBSD.org/cgi/man.cgi 597 598UNIX history graphing project 599URL: http://minnie.tuhs.org/Unix_History/index.html 600 601UNIX history 602URL: http://www.levenez.com/unix/ 603 604James Howard: The BSD Family Tree 605URL: http://ezine.daemonnews.org/200104/bsd_family.html 606("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 607 608 609Acknowledgments 610--------------- 611 612Josh Gilliam for suggestions, bug fixes, and finding very old 613original BSD announcements from Usenet or tapes. 614 615Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 616 617-- 618Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 619URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree 620 621$FreeBSD: src/share/misc/bsd-family-tree,v 1.161 2013/03/15 00:53:30 svnexp Exp $ 622