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 | | | | | 267 | | | | | 268FreeBSD 10 -current | NetBSD -current OpenBSD -current | 269 | | | | | 270 v v v v v 271 272Time 273---------------- 274 275Time tolerance +/- 6 months, depending on which book/article you read; if it 276was the announcement in Usenet or if it was available as tape. 277 278[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 279 and John Quarterman. The Design and Implementation of 280 the 4.4BSD Operating System. 281[APL] Apple website [http://www.apple.com/macosx/] 282[BSDI] Berkeley Software Design, Inc. 283[DFB] DragonFlyBSD Project, The. 284[DOC] README, COPYRIGHT on tape. 285[FBD] FreeBSD Project, The. 286[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 287 Volume 11, Info 4, April, 1987. 288[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 289 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 290[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 291 Changes in the Kernel in 2.9BSD. Second Berkeley Software 292 Distribution UNIX Version 2.9, July, 1983. 293[NBD] NetBSD Project, The. 294[OBD] OpenBSD Project, The. 295[QCU] Salus, Peter H. A quarter century of UNIX. 296[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 297[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 298[USE] Usenet announcement. 299[WRS] Wind River Systems, Inc. 300[dmr] Dennis Ritchie, via E-Mail 301 302Multics 1965 303UNIX Summer 1969 304 DEC PDP-7 305First Edition 1971-11-03 [QCU] 306 DEC PDP-11/20, Assembler 307Second Edition 1972-06-12 [QCU] 308 10 UNIX installations 309Third Edition 1973-02-xx [QCU] 310 Pipes, 16 installations 311Fourth Edition 1973-11-xx [QCU] 312 rewriting in C effected, 313 above 30 installations 314Fifth Edition 1974-06-xx [QCU] 315 above 50 installations 316Sixth Edition 1975-05-xx [QCU] 317 port to DEC Vax 318Seventh Edition 1979-01-xx [QCU] 319 first portable UNIX 320Eighth Edition 1985-02-xx [QCU] 321 VAX 11/750, VAX 11/780 [dmr] 322 descended from 4.1c BSD [dmr] 323 descended from 4.1 BSD [44B] 324 scooping-out and replacement of the character-device 325 and networking part by the streams mechanism 326 327Ninth Edition 1986-09-xx [QCU] 328Tenth Edition 1989-10-xx [QCU] 329 3301BSD late 1977 331 1978-03-09 [QCU] 332 PDP-11, Pascal, ex(1) 333 30 free copies of 1BSD sent out 334 35 tapes sold for 50 USD [QCU] 3352BSD mid 1978 [QCU] 1979-05-10 [TUHS] 336 75 2BSD tapes shipped 3372.79BSD 1980-04-xx [TUHS] 3382.8BSD 1981-07-xx [KSJ] 339 3402.8.1BSD 1982-01-xx [QCU] 341 set of performance improvements 3422.9BSD 1983-07-xx [KSJ] 3432.9.1BSD 1983-11-xx [TUHS] 3442.9BSD-Seismo 1985-08-xx [SMS] 3452.10BSD 1987-04-xx [KKK] 3462.10.1BSD 1989-01-xx [SMS] 3472.11BSD 1992-02-xx [SMS] 3482.11BSD rev #430 1999-12-13 [SMS] 349 35032V 1978-1[01]-xx [QCU] 3513BSD late 1979 [QCU] March 1980 [TUHS] 352 virtual memory, page replacement, 353 demand paging 3544.0BSD 1980-10-xx 3554.1BSD 1981-07-08 [DOC] 3564.1aBSD 1982-04-xx 357 alpha release, 100 sites, networking [44B] 3584.1bBSD internal release, fast filesystem [44B] 3594.1cBSD late 1982 360 beta release, IPC [44B] 3614.2BSD 1983-09-xx [QCU] 362 1983-08-03 [DOC] 3634.3BSD 1986-06-xx [QCU] 364 1986-04-05 [KB], [DOC] 3654.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3664.3BSD NET/1 1988-11-xx [QCU] 367 1989-01-01 [DOC] 3684.3BSD Reno 1990-06-29 [QCU], [DOC] 3694.3BSD NET/2 1991-06-28 [QCU], [DOC] 370 371BSD/386 ALPHA 1991-12-xx [BSDI] 372 first code released to people outside BSDI 373386BSD 0.0 1992-02-xx [DOC] 374BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 375BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 376386BSD 0.1 1992-07-28 [DOC] 3774.4BSD Alpha 1992-07-07 378BSD/386 0.9.3 1992-10-xx [BSDI] 379 first external gamma; G customers 380BSD/386 0.9.4 1992-12-xx [BSDI] 381 would have been 1.0 except for request 382 for preliminary injunction 383BSD/386 1.0 1993-03-xx [BSDI] 384 injunction denied; first official release 385NetBSD 0.8 1993-04-20 [NBD] 3864.4BSD 1993-06-01 [USE] 387NetBSD 0.9 1993-08-23 [NBD] 388FreeBSD 1.0 1993-11-01 [FBD] 389FreeBSD 1.0.2 1993-11-14 [FBD] 390 supersedes 1.0 13 days after release. 391BSD/386 1.1 1994-02-xx [BSDI] 3924.4BSD Lite 1994-03-01 [USE] 393FreeBSD 1.1 1994-05-07 [FBD] 394FreeBSD 1.1.5 1994-06-30 [FBD] 395FreeBSD 1.1.5.1 1994-07-05 [FBD] 396 supersedes 1.1.5 5 days after release. 397NetBSD 1.0 1994-10-26 [NBD] 398386BSD 1.0 1994-11-12 [USE] 399FreeBSD 2.0 1994-11-23 [FBD] 400BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 401FreeBSD 2.0.5 1995-06-10 [FBD] 402BSD/OS 2.0.1 1995-06-xx [BSDI] 4034.4BSD Lite Release 2 1995-06-xx [44B] 404 the true final distribution from the CSRG 405FreeBSD 2.1.0 1995-11-19 [FBD] 406NetBSD 1.1 1995-11-26 [NBD] 407BSD/OS 2.1 1996-01-xx [BSDI] 408FreeBSD 2.1.5 1996-07-14 [FBD] 409NetBSD 1.2 1996-10-04 [NBD] 410OpenBSD 2.0 1996-10-18 [OBD] 411FreeBSD 2.1.6 1996-11-16 [FBD] 412FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 413Rhapsody 1997-xx-xx 414FreeBSD 2.1.7 1997-02-20 [FBD] 415BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 416FreeBSD 2.2.0 1997-03-16 [FBD] 417FreeBSD 2.2.1 1997-03-25 [FBD] 418FreeBSD 2.2.2 1997-05-16 [FBD] 419NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 420OpenBSD 2.1 1997-06-01 [OBD] 421FreeBSD 2.2.5 1997-10-22 [FBD] 422OpenBSD 2.2 1997-12-01 [OBD] 423NetBSD 1.3 1998-01-04 [NBD] 424FreeBSD 2.2.6 1998-03-25 [FBD] 425NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 426BSD/OS 3.1 1998-03-xx [BSDI] 427OpenBSD 2.3 1998-05-19 [OBD] 428NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 429FreeBSD 2.2.7 1998-07-22 [FBD] 430BSD/OS 4.0 1998-08-xx [BSDI] 431 2-lock MP support, ELF executables 432FreeBSD 3.0 1998-10-16 [FBD] 433 FreeBSD-3.0 is a snapshot from -current, 434 while 3.1 and 3.2 are from 3.x-stable which 435 was branched quite some time after 3.0-release 436FreeBSD 2.2.8 1998-11-29 [FBD] 437OpenBSD 2.4 1998-12-01 [OBD] 438NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 439FreeBSD 3.1 1999-02-15 [FBD] 440BSD/OS 4.0.1 1999-03-xx [BSDI] 441NetBSD 1.4 1999-05-12 [NBD] 442FreeBSD 3.2 1999-05-17 [FBD] 443OpenBSD 2.5 1999-05-19 [OBD] 444NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 445FreeBSD 3.3 1999-09-17 [FBD] 446OpenBSD 2.6 1999-12-01 [OBD] 447FreeBSD 3.4 1999-12-20 [FBD] 448BSD/OS 4.1 1999-12-xx [BSDI] 449FreeBSD 4.0 2000-03-13 [FBD] 450NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 451OpenBSD 2.7 2000-06-15 [OBD] 452FreeBSD 3.5 2000-06-24 [FBD] 453FreeBSD 4.1 2000-07-27 [FBD] 454FreeBSD 3.5.1 2000-07-28 [FBD] 455FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 456FreeBSD 4.2 2000-11-21 [FBD] 457NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 458BSD/OS 4.2 2000-11-29 [BSDI] 459OpenBSD 2.8 2000-12-01 [OBD] 460NetBSD 1.5 2000-12-06 [NBD] 461Mac OS X 10.0 2001-03-24 [APL] 462FreeBSD 4.3 2001-04-20 [FBD] 463OpenBSD 2.9 2001-06-01 [OBD] 464NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 465NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 466FreeBSD 4.4 2001-09-18 [FBD] 467Mac OS X 10.1 2001-09-29 [APL] 468OpenBSD 3.0 2001-12-01 [OBD] 469FreeBSD 4.5 2002-01-29 [FBD] 470BSD/OS 4.3 2002-03-14 [WRS] 471OpenBSD 3.1 2002-05-19 [OBD] 472FreeBSD 4.6 2002-06-15 [FBD] 473NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 474FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 475Mac OS X 10.2 2002-08-23 [APL] 476NetBSD 1.6 2002-09-14 [NBD] 477FreeBSD 4.7 2002-10-08 [FBD] 478OpenBSD 3.2 2002-11-01 [OBD] 479FreeBSD 5.0 2003-01-17 [FBD] 480 FreeBSD 5.0 is a separate branch off of 481 -current, similar to 3.0. 482FreeBSD 4.8 2003-04-03 [FBD] 483NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 484OpenBSD 3.3 2003-05-01 [OBD] 485BSD/OS 5.0 2003-05-?? [WRS] 486FreeBSD 5.1 2003-06-09 [FBD] 487Mac OS X 10.3 2003-10-24 [APL] 488FreeBSD 4.9 2003-10-28 [FBD] 489BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 490OpenBSD 3.4 2003-11-01 [OBD] 491FreeBSD 5.2 2004-01-12 [FBD] 492FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 493NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 494OpenBSD 3.5 2004-04-01 [OBD] 495FreeBSD 4.10 2004-05-27 [FBD] 496DragonFly 1.0 2004-07-12 [DFB] 497OpenBSD 3.6 2004-10-29 [OBD] 498FreeBSD 5.3 2004-11-06 [FBD] 499NetBSD 2.0 2004-12-09 [NBD] 500FreeBSD 4.11 2005-01-25 [FBD] 501DragonFly 1.2.0 2005-04-08 [DFB] 502NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 503Mac OS X 10.4 2005-04-29 [APL] 504FreeBSD 5.4 2005-05-09 [FBD] 505OpenBSD 3.7 2005-05-19 [OBD] 506NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 507OpenBSD 3.8 2005-11-01 [OBD] 508FreeBSD 6.0 2005-11-01 [FBD] 509NetBSD 2.1 2005-11-02 [NBD] 510NetBSD 3.0 2005-12-23 [NBD] 511DragonFly 1.4.0 2006-01-08 [DFB] 512OpenBSD 3.9 2006-05-01 [OBD] 513FreeBSD 6.1 2006-05-08 [FBD] 514FreeBSD 5.5 2006-05-25 [FBD] 515NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 516DragonFly 1.6.0 2006-07-24 [DFB] 517OpenBSD 4.0 2006-11-01 [OBD] 518NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 519NetBSD 3.1 2006-11-04 [NBD] 520FreeBSD 6.2 2007-01-15 [FBD] 521DragonFly 1.8.0 2007-01-30 [DFB] 522OpenBSD 4.1 2007-05-01 [OBD] 523DragonFly 1.10.0 2007-08-06 [DFB] 524Mac OS X 10.5 2007-10-26 [APL] 525OpenBSD 4.2 2007-11-01 [OBD] 526NetBSD 4.0 2007-12-19 [NBD] 527FreeBSD 6.3 2008-01-18 [FBD] 528DragonFly 1.12.0 2008-02-26 [DFB] 529FreeBSD 7.0 2008-02-27 [FBD] 530OpenBSD 4.3 2008-05-01 [OBD] 531DragonFly 2.0.0 2008-07-21 [DFB] 532OpenBSD 4.4 2008-11-01 [OBD] 533FreeBSD 6.4 2008-11-28 [FBD] 534FreeBSD 7.1 2009-01-04 [FBD] 535DragonFly 2.2.0 2009-02-17 [DFB] 536NetBSD 5.0 2009-04-29 [NBD] 537OpenBSD 4.5 2009-05-01 [OBD] 538FreeBSD 7.2 2009-05-04 [FBD] 539Mac OS X 10.6 2009-06-08 [APL] 540NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 541DragonFly 2.4.0 2009-09-16 [DFB] 542OpenBSD 4.6 2009-10-18 [OBD] 543FreeBSD 8.0 2009-11-26 [FBD] 544NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 545FreeBSD 7.3 2010-03-23 [FBD] 546DragonFly 2.6.0 2010-03-28 [DFB] 547OpenBSD 4.7 2010-05-19 [OBD] 548FreeBSD 8.1 2010-07-24 [FBD] 549DragonFly 2.8.2 2010-10-30 [DFB] 550OpenBSD 4.8 2010-11-01 [OBD] 551NetBSD 5.1 2010-11-19 [NBD] 552FreeBSD 7.4 2011-02-24 [FBD] 553FreeBSD 8.2 2011-02-24 [FBD] 554DragonFly 2.10.1 2011-04-26 [DFB] 555OpenBSD 4.9 2011-05-01 [OBD] 556Mac OS X 10.7 2011-07-20 [APL] 557OpenBSD 5.0 2011-11-01 [OBD] 558FreeBSD 9.0 2012-01-12 [FBD] 559NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 560DragonFly 3.0.1 2012-02-21 [DFB] 561FreeBSD 8.3 2012-04-18 [FBD] 562OpenBSD 5.1 2012-05-01 [OBD] 563Mac OS X 10.8 2012-07-25 [APL] 564NetBSD 6.0 2012-10-17 [NBD] 565OpenBSD 5.2 2012-11-01 [OBD] 566DragonFly 3.2.1 2012-11-02 [DFB] 567FreeBSD 9.1 2012-12-30 [FBD] 568DragonFly 3.4.1 2013-04-29 [DFB] 569OpenBSD 5.3 2013-05-01 [OBD] 570NetBSD 6.1 2013-05-18 [NBD] 571 572Bibliography 573------------------------ 574 575Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 576Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 577System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 578 579Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 580Company, Inc., 1994. ISBN 0-201-54777-5 581 582McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 583Quarterman. The Design and Implementation of the 4.4BSD Operating 584System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 585 586McKusick, Marshall Kirk, George Neville-Neil. The Design and 587Implementation of the FreeBSD Operating System. 588Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 589 590Doug McIlroy. Research Unix Reader. 591 592Michael G. Brown. The Role of BSD in the Development of Unix. 593Presented to the Tasmanian Unix Special Interest Group of the 594Australian Computer Society, Hobart, August 1993. 595 596Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 597URL: http://www.byte.com/art/9410/sec8/art3.htm 598 599Andreas Klemm, Lars Köller. If you're going to San Francisco ... 600Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 601 602BSD Release Announcements collection. 603URL: http://www.FreeBSD.org/releases/ 604 605BSD Hypertext Man Pages 606URL: http://www.FreeBSD.org/cgi/man.cgi 607 608UNIX history graphing project 609URL: http://minnie.tuhs.org/Unix_History/index.html 610 611UNIX history 612URL: http://www.levenez.com/unix/ 613 614James Howard: The BSD Family Tree 615URL: http://ezine.daemonnews.org/200104/bsd_family.html 616("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 617 618 619Acknowledgments 620--------------- 621 622Josh Gilliam for suggestions, bug fixes, and finding very old 623original BSD announcements from Usenet or tapes. 624 625Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 626 627-- 628Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 629URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree 630 631$FreeBSD$ 632