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 | DragonFly 2.0.0 225 | | FreeBSD | | 4.0.1 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 | | | | | NetBSD | DragonFly 2.4.0 235 | | | | | 5.0.1 OpenBSD 4.6 | 236 | | | | | | | | 237 *--FreeBSD | | | | | | | 238 | 8.0 | | | | | | | 239 | | FreeBSD | | | NetBSD | | 240 | | 7.3 | | | 5.0.2 | DragonFly 2.6.0 241 | | | | | | OpenBSD 4.7 | 242 | FreeBSD | | | | | | 243 | 8.1 | | | | | | 244 | | | | | | | DragonFly 2.8.2 245 | | | | | | OpenBSD 4.8 | 246 | | | | | *--NetBSD | | 247 | FreeBSD FreeBSD | | | 5.1 | | 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 | DragonFly 3.0.1 255 | | FreeBSD | | | 5.1.2 | | 256 | | 8.3 | | | | | | 257 | | | | | | NetBSD | | 258 | | | | | | 5.1.3 | | 259 | | | | | | OpenBSD 5.1 | 260 | | | Mac OS X | `----. | | 261 | | | 10.8 | \ | | 262 | | | | NetBSD 6.0 | | | 263 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 264 | FreeBSD | | | | | NetBSD | | 265 | 9.1 | | | | | 5.2 | | 266 | | | | | | | | | | 267 | | | | | | | NetBSD | | 268 | | | | | | | 5.2.1 | | 269 | | | | | | | | | 270 | | | | | | \ | | 271 | | | | | | NetBSD | | 272 | | | | | | 6.0.1 | | 273 | | | | | | | | | 274 | | | | | | NetBSD | | 275 | | | | | | 6.0.2 | | 276 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1 277 | | | | | | NetBSD | | 278 | | | | | | 6.0.3 | | 279 | | | | | | | | 280 | | | | | |`-NetBSD 6.1 | | 281 | | FreeBSD | | | | | 282 | | 8.4 | | NetBSD 6.1.1 | | 283 | | | | | | | 284 | FreeBSD | | NetBSD 6.1.2 | | 285 | 9.2 Mac OS X | | | 286 | 10.9 | OpenBSD 5.4 | 287 | | | | DragonFly 3.6.0 288 | | | | | 289 | | | | | 290 | | | | | 291 | | | | | 292FreeBSD 10 -current | NetBSD -current OpenBSD -current | 293 | | | | | 294 v v v v v 295 296Time 297---------------- 298 299Time tolerance +/- 6 months, depending on which book/article you read; if it 300was the announcement in Usenet or if it was available as tape. 301 302[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 303 and John Quarterman. The Design and Implementation of 304 the 4.4BSD Operating System. 305[APL] Apple website [http://www.apple.com/macosx/] 306[BSDI] Berkeley Software Design, Inc. 307[DFB] DragonFlyBSD Project, The. 308[DOC] README, COPYRIGHT on tape. 309[FBD] FreeBSD Project, The. 310[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 311 Volume 11, Info 4, April, 1987. 312[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 313 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 314[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 315 Changes in the Kernel in 2.9BSD. Second Berkeley Software 316 Distribution UNIX Version 2.9, July, 1983. 317[NBD] NetBSD Project, The. 318[OBD] OpenBSD Project, The. 319[QCU] Salus, Peter H. A quarter century of UNIX. 320[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 321[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 322[USE] Usenet announcement. 323[WRS] Wind River Systems, Inc. 324[dmr] Dennis Ritchie, via E-Mail 325 326Multics 1965 327UNIX Summer 1969 328 DEC PDP-7 329First Edition 1971-11-03 [QCU] 330 DEC PDP-11/20, Assembler 331Second Edition 1972-06-12 [QCU] 332 10 UNIX installations 333Third Edition 1973-02-xx [QCU] 334 Pipes, 16 installations 335Fourth Edition 1973-11-xx [QCU] 336 rewriting in C effected, 337 above 30 installations 338Fifth Edition 1974-06-xx [QCU] 339 above 50 installations 340Sixth Edition 1975-05-xx [QCU] 341 port to DEC Vax 342Seventh Edition 1979-01-xx [QCU] 343 first portable UNIX 344Eighth Edition 1985-02-xx [QCU] 345 VAX 11/750, VAX 11/780 [dmr] 346 descended from 4.1c BSD [dmr] 347 descended from 4.1 BSD [44B] 348 scooping-out and replacement of the character-device 349 and networking part by the streams mechanism 350 351Ninth Edition 1986-09-xx [QCU] 352Tenth Edition 1989-10-xx [QCU] 353 3541BSD late 1977 355 1978-03-09 [QCU] 356 PDP-11, Pascal, ex(1) 357 30 free copies of 1BSD sent out 358 35 tapes sold for 50 USD [QCU] 3592BSD mid 1978 [QCU] 1979-05-10 [TUHS] 360 75 2BSD tapes shipped 3612.79BSD 1980-04-xx [TUHS] 3622.8BSD 1981-07-xx [KSJ] 363 3642.8.1BSD 1982-01-xx [QCU] 365 set of performance improvements 3662.9BSD 1983-07-xx [KSJ] 3672.9.1BSD 1983-11-xx [TUHS] 3682.9BSD-Seismo 1985-08-xx [SMS] 3692.10BSD 1987-04-xx [KKK] 3702.10.1BSD 1989-01-xx [SMS] 3712.11BSD 1992-02-xx [SMS] 3722.11BSD rev #430 1999-12-13 [SMS] 373 37432V 1978-1[01]-xx [QCU] 3753BSD late 1979 [QCU] March 1980 [TUHS] 376 virtual memory, page replacement, 377 demand paging 3784.0BSD 1980-10-xx 3794.1BSD 1981-07-08 [DOC] 3804.1aBSD 1982-04-xx 381 alpha release, 100 sites, networking [44B] 3824.1bBSD internal release, fast filesystem [44B] 3834.1cBSD late 1982 384 beta release, IPC [44B] 3854.2BSD 1983-09-xx [QCU] 386 1983-08-03 [DOC] 3874.3BSD 1986-06-xx [QCU] 388 1986-04-05 [KB], [DOC] 3894.3BSD Tahoe 1988-06-15 [QCU], [DOC] 3904.3BSD NET/1 1988-11-xx [QCU] 391 1989-01-01 [DOC] 3924.3BSD Reno 1990-06-29 [QCU], [DOC] 3934.3BSD NET/2 1991-06-28 [QCU], [DOC] 394 395BSD/386 ALPHA 1991-12-xx [BSDI] 396 first code released to people outside BSDI 397386BSD 0.0 1992-02-xx [DOC] 398BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 399BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 400386BSD 0.1 1992-07-28 [DOC] 4014.4BSD Alpha 1992-07-07 402BSD/386 0.9.3 1992-10-xx [BSDI] 403 first external gamma; G customers 404BSD/386 0.9.4 1992-12-xx [BSDI] 405 would have been 1.0 except for request 406 for preliminary injunction 407BSD/386 1.0 1993-03-xx [BSDI] 408 injunction denied; first official release 409NetBSD 0.8 1993-04-20 [NBD] 4104.4BSD 1993-06-01 [USE] 411NetBSD 0.9 1993-08-23 [NBD] 412FreeBSD 1.0 1993-11-01 [FBD] 413FreeBSD 1.0.2 1993-11-14 [FBD] 414 supersedes 1.0 13 days after release. 415BSD/386 1.1 1994-02-xx [BSDI] 4164.4BSD Lite 1994-03-01 [USE] 417FreeBSD 1.1 1994-05-07 [FBD] 418FreeBSD 1.1.5 1994-06-30 [FBD] 419FreeBSD 1.1.5.1 1994-07-05 [FBD] 420 supersedes 1.1.5 5 days after release. 421NetBSD 1.0 1994-10-26 [NBD] 422386BSD 1.0 1994-11-12 [USE] 423FreeBSD 2.0 1994-11-23 [FBD] 424BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 425FreeBSD 2.0.5 1995-06-10 [FBD] 426BSD/OS 2.0.1 1995-06-xx [BSDI] 4274.4BSD Lite Release 2 1995-06-xx [44B] 428 the true final distribution from the CSRG 429FreeBSD 2.1.0 1995-11-19 [FBD] 430NetBSD 1.1 1995-11-26 [NBD] 431BSD/OS 2.1 1996-01-xx [BSDI] 432FreeBSD 2.1.5 1996-07-14 [FBD] 433NetBSD 1.2 1996-10-04 [NBD] 434OpenBSD 2.0 1996-10-18 [OBD] 435FreeBSD 2.1.6 1996-11-16 [FBD] 436FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 437Rhapsody 1997-xx-xx 438FreeBSD 2.1.7 1997-02-20 [FBD] 439BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 440FreeBSD 2.2.0 1997-03-16 [FBD] 441FreeBSD 2.2.1 1997-03-25 [FBD] 442FreeBSD 2.2.2 1997-05-16 [FBD] 443NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 444OpenBSD 2.1 1997-06-01 [OBD] 445FreeBSD 2.2.5 1997-10-22 [FBD] 446OpenBSD 2.2 1997-12-01 [OBD] 447NetBSD 1.3 1998-01-04 [NBD] 448FreeBSD 2.2.6 1998-03-25 [FBD] 449NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 450BSD/OS 3.1 1998-03-xx [BSDI] 451OpenBSD 2.3 1998-05-19 [OBD] 452NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 453FreeBSD 2.2.7 1998-07-22 [FBD] 454BSD/OS 4.0 1998-08-xx [BSDI] 455 2-lock MP support, ELF executables 456FreeBSD 3.0 1998-10-16 [FBD] 457 FreeBSD-3.0 is a snapshot from -current, 458 while 3.1 and 3.2 are from 3.x-stable which 459 was branched quite some time after 3.0-release 460FreeBSD 2.2.8 1998-11-29 [FBD] 461OpenBSD 2.4 1998-12-01 [OBD] 462NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 463FreeBSD 3.1 1999-02-15 [FBD] 464BSD/OS 4.0.1 1999-03-xx [BSDI] 465NetBSD 1.4 1999-05-12 [NBD] 466FreeBSD 3.2 1999-05-17 [FBD] 467OpenBSD 2.5 1999-05-19 [OBD] 468NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 469FreeBSD 3.3 1999-09-17 [FBD] 470OpenBSD 2.6 1999-12-01 [OBD] 471FreeBSD 3.4 1999-12-20 [FBD] 472BSD/OS 4.1 1999-12-xx [BSDI] 473FreeBSD 4.0 2000-03-13 [FBD] 474NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 475OpenBSD 2.7 2000-06-15 [OBD] 476FreeBSD 3.5 2000-06-24 [FBD] 477FreeBSD 4.1 2000-07-27 [FBD] 478FreeBSD 3.5.1 2000-07-28 [FBD] 479FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 480FreeBSD 4.2 2000-11-21 [FBD] 481NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 482BSD/OS 4.2 2000-11-29 [BSDI] 483OpenBSD 2.8 2000-12-01 [OBD] 484NetBSD 1.5 2000-12-06 [NBD] 485Mac OS X 10.0 2001-03-24 [APL] 486FreeBSD 4.3 2001-04-20 [FBD] 487OpenBSD 2.9 2001-06-01 [OBD] 488NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 489NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 490FreeBSD 4.4 2001-09-18 [FBD] 491Mac OS X 10.1 2001-09-29 [APL] 492OpenBSD 3.0 2001-12-01 [OBD] 493FreeBSD 4.5 2002-01-29 [FBD] 494BSD/OS 4.3 2002-03-14 [WRS] 495OpenBSD 3.1 2002-05-19 [OBD] 496FreeBSD 4.6 2002-06-15 [FBD] 497NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 498FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 499Mac OS X 10.2 2002-08-23 [APL] 500NetBSD 1.6 2002-09-14 [NBD] 501FreeBSD 4.7 2002-10-08 [FBD] 502OpenBSD 3.2 2002-11-01 [OBD] 503FreeBSD 5.0 2003-01-17 [FBD] 504 FreeBSD 5.0 is a separate branch off of 505 -current, similar to 3.0. 506FreeBSD 4.8 2003-04-03 [FBD] 507NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 508OpenBSD 3.3 2003-05-01 [OBD] 509BSD/OS 5.0 2003-05-?? [WRS] 510FreeBSD 5.1 2003-06-09 [FBD] 511Mac OS X 10.3 2003-10-24 [APL] 512FreeBSD 4.9 2003-10-28 [FBD] 513BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 514OpenBSD 3.4 2003-11-01 [OBD] 515FreeBSD 5.2 2004-01-12 [FBD] 516FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 517NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 518OpenBSD 3.5 2004-04-01 [OBD] 519FreeBSD 4.10 2004-05-27 [FBD] 520DragonFly 1.0 2004-07-12 [DFB] 521OpenBSD 3.6 2004-10-29 [OBD] 522FreeBSD 5.3 2004-11-06 [FBD] 523NetBSD 2.0 2004-12-09 [NBD] 524FreeBSD 4.11 2005-01-25 [FBD] 525DragonFly 1.2.0 2005-04-08 [DFB] 526NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 527Mac OS X 10.4 2005-04-29 [APL] 528FreeBSD 5.4 2005-05-09 [FBD] 529OpenBSD 3.7 2005-05-19 [OBD] 530NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 531OpenBSD 3.8 2005-11-01 [OBD] 532FreeBSD 6.0 2005-11-01 [FBD] 533NetBSD 2.1 2005-11-02 [NBD] 534NetBSD 3.0 2005-12-23 [NBD] 535DragonFly 1.4.0 2006-01-08 [DFB] 536OpenBSD 3.9 2006-05-01 [OBD] 537FreeBSD 6.1 2006-05-08 [FBD] 538FreeBSD 5.5 2006-05-25 [FBD] 539NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 540DragonFly 1.6.0 2006-07-24 [DFB] 541OpenBSD 4.0 2006-11-01 [OBD] 542NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 543NetBSD 3.1 2006-11-04 [NBD] 544FreeBSD 6.2 2007-01-15 [FBD] 545DragonFly 1.8.0 2007-01-30 [DFB] 546OpenBSD 4.1 2007-05-01 [OBD] 547DragonFly 1.10.0 2007-08-06 [DFB] 548Mac OS X 10.5 2007-10-26 [APL] 549OpenBSD 4.2 2007-11-01 [OBD] 550NetBSD 4.0 2007-12-19 [NBD] 551FreeBSD 6.3 2008-01-18 [FBD] 552DragonFly 1.12.0 2008-02-26 [DFB] 553FreeBSD 7.0 2008-02-27 [FBD] 554OpenBSD 4.3 2008-05-01 [OBD] 555DragonFly 2.0.0 2008-07-21 [DFB] 556OpenBSD 4.4 2008-11-01 [OBD] 557FreeBSD 6.4 2008-11-28 [FBD] 558FreeBSD 7.1 2009-01-04 [FBD] 559DragonFly 2.2.0 2009-02-17 [DFB] 560NetBSD 5.0 2009-04-29 [NBD] 561OpenBSD 4.5 2009-05-01 [OBD] 562FreeBSD 7.2 2009-05-04 [FBD] 563Mac OS X 10.6 2009-06-08 [APL] 564NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 565DragonFly 2.4.0 2009-09-16 [DFB] 566OpenBSD 4.6 2009-10-18 [OBD] 567FreeBSD 8.0 2009-11-26 [FBD] 568NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 569FreeBSD 7.3 2010-03-23 [FBD] 570DragonFly 2.6.0 2010-03-28 [DFB] 571OpenBSD 4.7 2010-05-19 [OBD] 572FreeBSD 8.1 2010-07-24 [FBD] 573DragonFly 2.8.2 2010-10-30 [DFB] 574OpenBSD 4.8 2010-11-01 [OBD] 575NetBSD 5.1 2010-11-19 [NBD] 576FreeBSD 7.4 2011-02-24 [FBD] 577FreeBSD 8.2 2011-02-24 [FBD] 578DragonFly 2.10.1 2011-04-26 [DFB] 579OpenBSD 4.9 2011-05-01 [OBD] 580Mac OS X 10.7 2011-07-20 [APL] 581OpenBSD 5.0 2011-11-01 [OBD] 582FreeBSD 9.0 2012-01-12 [FBD] 583NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 584DragonFly 3.0.1 2012-02-21 [DFB] 585FreeBSD 8.3 2012-04-18 [FBD] 586OpenBSD 5.1 2012-05-01 [OBD] 587Mac OS X 10.8 2012-07-25 [APL] 588NetBSD 6.0 2012-10-17 [NBD] 589OpenBSD 5.2 2012-11-01 [OBD] 590DragonFly 3.2.1 2012-11-02 [DFB] 591NetBSD 5.2 2012-12-03 [NBD] 592NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 593FreeBSD 9.1 2012-12-30 [FBD] 594DragonFly 3.4.1 2013-04-29 [DFB] 595OpenBSD 5.3 2013-05-01 [OBD] 596NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 597NetBSD 6.1 2013-05-18 [NBD] 598FreeBSD 8.4 2013-06-07 [FBD] 599NetBSD 6.1.1 2013-08-22 [NBD] 600NetBSD 5.1.3 2013-09-29 [NBD] 601NetBSD 5.2.1 2013-09-29 [NBD] 602FreeBSD 9.2 2013-09-30 [FBD] 603NetBSD 6.0.3 2013-09-30 [NBD] 604NetBSD 6.1.2 2013-09-30 [NBD] 605Mac OS X 10.9 2013-10-22 [APL] 606OpenBSD 5.4 2013-11-01 [OBD] 607DragonFly 3.6.0 2013-11-25 [DFB] 608 609Bibliography 610------------------------ 611 612Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 613Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 614System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 615 616Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 617Company, Inc., 1994. ISBN 0-201-54777-5 618 619McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 620Quarterman. The Design and Implementation of the 4.4BSD Operating 621System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 622 623McKusick, Marshall Kirk, George Neville-Neil. The Design and 624Implementation of the FreeBSD Operating System. 625Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 626 627Doug McIlroy. Research Unix Reader. 628 629Michael G. Brown. The Role of BSD in the Development of Unix. 630Presented to the Tasmanian Unix Special Interest Group of the 631Australian Computer Society, Hobart, August 1993. 632 633Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 634URL: http://www.byte.com/art/9410/sec8/art3.htm 635 636Andreas Klemm, Lars Köller. If you're going to San Francisco ... 637Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 638 639BSD Release Announcements collection. 640URL: http://www.FreeBSD.org/releases/ 641 642BSD Hypertext Man Pages 643URL: http://www.FreeBSD.org/cgi/man.cgi 644 645UNIX history graphing project 646URL: http://minnie.tuhs.org/Unix_History/index.html 647 648UNIX history 649URL: http://www.levenez.com/unix/ 650 651James Howard: The BSD Family Tree 652URL: http://ezine.daemonnews.org/200104/bsd_family.html 653("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 654 655 656Acknowledgments 657--------------- 658 659Josh Gilliam for suggestions, bug fixes, and finding very old 660original BSD announcements from Usenet or tapes. 661 662Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 663 664-- 665Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 666URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 667 668$FreeBSD$ 669