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 | | | | | | 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 | | | 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 | | | | | 262 | 9.1 | | | | | 263 | | | | | | 264 | | | | OpenBSD 5.3 DragonFly 3.4.1 265 | | | NetBSD 6.1 | | 266 | FreeBSD | | | | 267 | 8.4 | | | | 268 | | | | | 269FreeBSD 10 -current | NetBSD -current OpenBSD -current | 270 | | | | | 271 v v v v v 272 273Time 274---------------- 275 276Time tolerance +/- 6 months, depending on which book/article you read; if it 277was the announcement in Usenet or if it was available as tape. 278 279[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 280 and John Quarterman. The Design and Implementation of 281 the 4.4BSD Operating System. 282[APL] Apple website [http://www.apple.com/macosx/] 283[BSDI] Berkeley Software Design, Inc. 284[DFB] DragonFlyBSD Project, The. 285[DOC] README, COPYRIGHT on tape. 286[FBD] FreeBSD Project, The. 287[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 288 Volume 11, Info 4, April, 1987. 289[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 290 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 291[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 292 Changes in the Kernel in 2.9BSD. Second Berkeley Software 293 Distribution UNIX Version 2.9, July, 1983. 294[NBD] NetBSD Project, The. 295[OBD] OpenBSD Project, The. 296[QCU] Salus, Peter H. A quarter century of UNIX. 297[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 298[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 299[USE] Usenet announcement. 300[WRS] Wind River Systems, Inc. 301[dmr] Dennis Ritchie, via E-Mail 302 303Multics 1965 304UNIX Summer 1969 305 DEC PDP-7 306First Edition 1971-11-03 [QCU] 307 DEC PDP-11/20, Assembler 308Second Edition 1972-06-12 [QCU] 309 10 UNIX installations 310Third Edition 1973-02-xx [QCU] 311 Pipes, 16 installations 312Fourth Edition 1973-11-xx [QCU] 313 rewriting in C effected, 314 above 30 installations 315Fifth Edition 1974-06-xx [QCU] 316 above 50 installations 317Sixth Edition 1975-05-xx [QCU] 318 port to DEC Vax 319Seventh Edition 1979-01-xx [QCU] 320 first portable UNIX 321Eighth Edition 1985-02-xx [QCU] 322 VAX 11/750, VAX 11/780 [dmr] 323 descended from 4.1c BSD [dmr] 324 descended from 4.1 BSD [44B] 325 scooping-out and replacement of the character-device 326 and networking part by the streams mechanism 327 328Ninth Edition 1986-09-xx [QCU] 329Tenth Edition 1989-10-xx [QCU] 330 3311BSD late 1977 332 1978-03-09 [QCU] 333 PDP-11, Pascal, ex(1) 334 30 free copies of 1BSD sent out 335 35 tapes sold for 50 USD [QCU] 3362BSD mid 1978 [QCU] 1979-05-10 [TUHS] 337 75 2BSD tapes shipped 3382.79BSD 1980-04-xx [TUHS] 3392.8BSD 1981-07-xx [KSJ] 340 3412.8.1BSD 1982-01-xx [QCU] 342 set of performance improvements 3432.9BSD 1983-07-xx [KSJ] 3442.9.1BSD 1983-11-xx [TUHS] 3452.9BSD-Seismo 1985-08-xx [SMS] 3462.10BSD 1987-04-xx [KKK] 3472.10.1BSD 1989-01-xx [SMS] 3482.11BSD 1992-02-xx [SMS] 3492.11BSD rev #430 1999-12-13 [SMS] 350 35132V 1978-1[01]-xx [QCU] 3523BSD late 1979 [QCU] March 1980 [TUHS] 353 virtual memory, page replacement, 354 demand paging 3554.0BSD 1980-10-xx 3564.1BSD 1981-07-08 [DOC] 3574.1aBSD 1982-04-xx 358 alpha release, 100 sites, networking [44B] 3594.1bBSD internal release, fast filesystem [44B] 3604.1cBSD late 1982 361 beta release, IPC [44B] 3624.2BSD 1983-09-xx [QCU] 363 1983-08-03 [DOC] 3644.3BSD 1986-06-xx [QCU] 365 1986-04-05 [KB], [DOC] 3664.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3674.3BSD NET/1 1988-11-xx [QCU] 368 1989-01-01 [DOC] 3694.3BSD Reno 1990-06-29 [QCU], [DOC] 3704.3BSD NET/2 1991-06-28 [QCU], [DOC] 371 372BSD/386 ALPHA 1991-12-xx [BSDI] 373 first code released to people outside BSDI 374386BSD 0.0 1992-02-xx [DOC] 375BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 376BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 377386BSD 0.1 1992-07-28 [DOC] 3784.4BSD Alpha 1992-07-07 379BSD/386 0.9.3 1992-10-xx [BSDI] 380 first external gamma; G customers 381BSD/386 0.9.4 1992-12-xx [BSDI] 382 would have been 1.0 except for request 383 for preliminary injunction 384BSD/386 1.0 1993-03-xx [BSDI] 385 injunction denied; first official release 386NetBSD 0.8 1993-04-20 [NBD] 3874.4BSD 1993-06-01 [USE] 388NetBSD 0.9 1993-08-23 [NBD] 389FreeBSD 1.0 1993-11-01 [FBD] 390FreeBSD 1.0.2 1993-11-14 [FBD] 391 supersedes 1.0 13 days after release. 392BSD/386 1.1 1994-02-xx [BSDI] 3934.4BSD Lite 1994-03-01 [USE] 394FreeBSD 1.1 1994-05-07 [FBD] 395FreeBSD 1.1.5 1994-06-30 [FBD] 396FreeBSD 1.1.5.1 1994-07-05 [FBD] 397 supersedes 1.1.5 5 days after release. 398NetBSD 1.0 1994-10-26 [NBD] 399386BSD 1.0 1994-11-12 [USE] 400FreeBSD 2.0 1994-11-23 [FBD] 401BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 402FreeBSD 2.0.5 1995-06-10 [FBD] 403BSD/OS 2.0.1 1995-06-xx [BSDI] 4044.4BSD Lite Release 2 1995-06-xx [44B] 405 the true final distribution from the CSRG 406FreeBSD 2.1.0 1995-11-19 [FBD] 407NetBSD 1.1 1995-11-26 [NBD] 408BSD/OS 2.1 1996-01-xx [BSDI] 409FreeBSD 2.1.5 1996-07-14 [FBD] 410NetBSD 1.2 1996-10-04 [NBD] 411OpenBSD 2.0 1996-10-18 [OBD] 412FreeBSD 2.1.6 1996-11-16 [FBD] 413FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 414Rhapsody 1997-xx-xx 415FreeBSD 2.1.7 1997-02-20 [FBD] 416BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 417FreeBSD 2.2.0 1997-03-16 [FBD] 418FreeBSD 2.2.1 1997-03-25 [FBD] 419FreeBSD 2.2.2 1997-05-16 [FBD] 420NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 421OpenBSD 2.1 1997-06-01 [OBD] 422FreeBSD 2.2.5 1997-10-22 [FBD] 423OpenBSD 2.2 1997-12-01 [OBD] 424NetBSD 1.3 1998-01-04 [NBD] 425FreeBSD 2.2.6 1998-03-25 [FBD] 426NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 427BSD/OS 3.1 1998-03-xx [BSDI] 428OpenBSD 2.3 1998-05-19 [OBD] 429NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 430FreeBSD 2.2.7 1998-07-22 [FBD] 431BSD/OS 4.0 1998-08-xx [BSDI] 432 2-lock MP support, ELF executables 433FreeBSD 3.0 1998-10-16 [FBD] 434 FreeBSD-3.0 is a snapshot from -current, 435 while 3.1 and 3.2 are from 3.x-stable which 436 was branched quite some time after 3.0-release 437FreeBSD 2.2.8 1998-11-29 [FBD] 438OpenBSD 2.4 1998-12-01 [OBD] 439NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 440FreeBSD 3.1 1999-02-15 [FBD] 441BSD/OS 4.0.1 1999-03-xx [BSDI] 442NetBSD 1.4 1999-05-12 [NBD] 443FreeBSD 3.2 1999-05-17 [FBD] 444OpenBSD 2.5 1999-05-19 [OBD] 445NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 446FreeBSD 3.3 1999-09-17 [FBD] 447OpenBSD 2.6 1999-12-01 [OBD] 448FreeBSD 3.4 1999-12-20 [FBD] 449BSD/OS 4.1 1999-12-xx [BSDI] 450FreeBSD 4.0 2000-03-13 [FBD] 451NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 452OpenBSD 2.7 2000-06-15 [OBD] 453FreeBSD 3.5 2000-06-24 [FBD] 454FreeBSD 4.1 2000-07-27 [FBD] 455FreeBSD 3.5.1 2000-07-28 [FBD] 456FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 457FreeBSD 4.2 2000-11-21 [FBD] 458NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 459BSD/OS 4.2 2000-11-29 [BSDI] 460OpenBSD 2.8 2000-12-01 [OBD] 461NetBSD 1.5 2000-12-06 [NBD] 462Mac OS X 10.0 2001-03-24 [APL] 463FreeBSD 4.3 2001-04-20 [FBD] 464OpenBSD 2.9 2001-06-01 [OBD] 465NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 466NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 467FreeBSD 4.4 2001-09-18 [FBD] 468Mac OS X 10.1 2001-09-29 [APL] 469OpenBSD 3.0 2001-12-01 [OBD] 470FreeBSD 4.5 2002-01-29 [FBD] 471BSD/OS 4.3 2002-03-14 [WRS] 472OpenBSD 3.1 2002-05-19 [OBD] 473FreeBSD 4.6 2002-06-15 [FBD] 474NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 475FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 476Mac OS X 10.2 2002-08-23 [APL] 477NetBSD 1.6 2002-09-14 [NBD] 478FreeBSD 4.7 2002-10-08 [FBD] 479OpenBSD 3.2 2002-11-01 [OBD] 480FreeBSD 5.0 2003-01-17 [FBD] 481 FreeBSD 5.0 is a separate branch off of 482 -current, similar to 3.0. 483FreeBSD 4.8 2003-04-03 [FBD] 484NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 485OpenBSD 3.3 2003-05-01 [OBD] 486BSD/OS 5.0 2003-05-?? [WRS] 487FreeBSD 5.1 2003-06-09 [FBD] 488Mac OS X 10.3 2003-10-24 [APL] 489FreeBSD 4.9 2003-10-28 [FBD] 490BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 491OpenBSD 3.4 2003-11-01 [OBD] 492FreeBSD 5.2 2004-01-12 [FBD] 493FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 494NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 495OpenBSD 3.5 2004-04-01 [OBD] 496FreeBSD 4.10 2004-05-27 [FBD] 497DragonFly 1.0 2004-07-12 [DFB] 498OpenBSD 3.6 2004-10-29 [OBD] 499FreeBSD 5.3 2004-11-06 [FBD] 500NetBSD 2.0 2004-12-09 [NBD] 501FreeBSD 4.11 2005-01-25 [FBD] 502DragonFly 1.2.0 2005-04-08 [DFB] 503NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 504Mac OS X 10.4 2005-04-29 [APL] 505FreeBSD 5.4 2005-05-09 [FBD] 506OpenBSD 3.7 2005-05-19 [OBD] 507NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 508OpenBSD 3.8 2005-11-01 [OBD] 509FreeBSD 6.0 2005-11-01 [FBD] 510NetBSD 2.1 2005-11-02 [NBD] 511NetBSD 3.0 2005-12-23 [NBD] 512DragonFly 1.4.0 2006-01-08 [DFB] 513OpenBSD 3.9 2006-05-01 [OBD] 514FreeBSD 6.1 2006-05-08 [FBD] 515FreeBSD 5.5 2006-05-25 [FBD] 516NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 517DragonFly 1.6.0 2006-07-24 [DFB] 518OpenBSD 4.0 2006-11-01 [OBD] 519NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 520NetBSD 3.1 2006-11-04 [NBD] 521FreeBSD 6.2 2007-01-15 [FBD] 522DragonFly 1.8.0 2007-01-30 [DFB] 523OpenBSD 4.1 2007-05-01 [OBD] 524DragonFly 1.10.0 2007-08-06 [DFB] 525Mac OS X 10.5 2007-10-26 [APL] 526OpenBSD 4.2 2007-11-01 [OBD] 527NetBSD 4.0 2007-12-19 [NBD] 528FreeBSD 6.3 2008-01-18 [FBD] 529DragonFly 1.12.0 2008-02-26 [DFB] 530FreeBSD 7.0 2008-02-27 [FBD] 531OpenBSD 4.3 2008-05-01 [OBD] 532DragonFly 2.0.0 2008-07-21 [DFB] 533OpenBSD 4.4 2008-11-01 [OBD] 534FreeBSD 6.4 2008-11-28 [FBD] 535FreeBSD 7.1 2009-01-04 [FBD] 536DragonFly 2.2.0 2009-02-17 [DFB] 537NetBSD 5.0 2009-04-29 [NBD] 538OpenBSD 4.5 2009-05-01 [OBD] 539FreeBSD 7.2 2009-05-04 [FBD] 540Mac OS X 10.6 2009-06-08 [APL] 541NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 542DragonFly 2.4.0 2009-09-16 [DFB] 543OpenBSD 4.6 2009-10-18 [OBD] 544FreeBSD 8.0 2009-11-26 [FBD] 545NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 546FreeBSD 7.3 2010-03-23 [FBD] 547DragonFly 2.6.0 2010-03-28 [DFB] 548OpenBSD 4.7 2010-05-19 [OBD] 549FreeBSD 8.1 2010-07-24 [FBD] 550DragonFly 2.8.2 2010-10-30 [DFB] 551OpenBSD 4.8 2010-11-01 [OBD] 552NetBSD 5.1 2010-11-19 [NBD] 553FreeBSD 7.4 2011-02-24 [FBD] 554FreeBSD 8.2 2011-02-24 [FBD] 555DragonFly 2.10.1 2011-04-26 [DFB] 556OpenBSD 4.9 2011-05-01 [OBD] 557Mac OS X 10.7 2011-07-20 [APL] 558OpenBSD 5.0 2011-11-01 [OBD] 559FreeBSD 9.0 2012-01-12 [FBD] 560NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 561DragonFly 3.0.1 2012-02-21 [DFB] 562FreeBSD 8.3 2012-04-18 [FBD] 563OpenBSD 5.1 2012-05-01 [OBD] 564Mac OS X 10.8 2012-07-25 [APL] 565NetBSD 6.0 2012-10-17 [NBD] 566OpenBSD 5.2 2012-11-01 [OBD] 567DragonFly 3.2.1 2012-11-02 [DFB] 568FreeBSD 9.1 2012-12-30 [FBD] 569DragonFly 3.4.1 2013-04-29 [DFB] 570OpenBSD 5.3 2013-05-01 [OBD] 571NetBSD 6.1 2013-05-18 [NBD] 572FreeBSD 8.4 2013-06-07 [FBD] 573 574Bibliography 575------------------------ 576 577Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 578Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 579System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 580 581Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 582Company, Inc., 1994. ISBN 0-201-54777-5 583 584McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 585Quarterman. The Design and Implementation of the 4.4BSD Operating 586System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 587 588McKusick, Marshall Kirk, George Neville-Neil. The Design and 589Implementation of the FreeBSD Operating System. 590Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 591 592Doug McIlroy. Research Unix Reader. 593 594Michael G. Brown. The Role of BSD in the Development of Unix. 595Presented to the Tasmanian Unix Special Interest Group of the 596Australian Computer Society, Hobart, August 1993. 597 598Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 599URL: http://www.byte.com/art/9410/sec8/art3.htm 600 601Andreas Klemm, Lars Köller. If you're going to San Francisco ... 602Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 603 604BSD Release Announcements collection. 605URL: http://www.FreeBSD.org/releases/ 606 607BSD Hypertext Man Pages 608URL: http://www.FreeBSD.org/cgi/man.cgi 609 610UNIX history graphing project 611URL: http://minnie.tuhs.org/Unix_History/index.html 612 613UNIX history 614URL: http://www.levenez.com/unix/ 615 616James Howard: The BSD Family Tree 617URL: http://ezine.daemonnews.org/200104/bsd_family.html 618("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 619 620 621Acknowledgments 622--------------- 623 624Josh Gilliam for suggestions, bug fixes, and finding very old 625original BSD announcements from Usenet or tapes. 626 627Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 628 629-- 630Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 631URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree 632 633$FreeBSD: src/share/misc/bsd-family-tree,v 1.168 2013/06/08 00:35:21 svnexp Exp $ 634