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 | FreeBSD 2.2.8 | | | | | | 114 | | | | | | | | 115 | v | | | | OpenBSD 2.4 | 116 | FreeBSD 2.2.9 | | | | | | 117 | | | | | | | 118FreeBSD 3.0 <--------* | | v | | 119 | | | NetBSD 1.3.3 | | 120 *---FreeBSD 3.1 | | | | 121 | | | | | BSD/OS 4.0.1 122 | FreeBSD 3.2----* | NetBSD 1.4 OpenBSD 2.5 | 123 | | | | | | | | | 124 | | | | | | | | | 125 | | | | | | | | | 126 | FreeBSD 3.3 | | | | NetBSD 1.4.1 | | 127 | | | | | | | OpenBSD 2.6 | 128 | FreeBSD 3.4 | | | | | | | 129 | | | | | | | | BSD/OS 4.1 130FreeBSD 4.0 | | | | | NetBSD 1.4.2 | | 131 | | | | | | | | | 132 | | | | | | | | | 133 | FreeBSD 3.5 | | | | | OpenBSD 2.7 | 134 | | | | | | | | | 135 | FreeBSD 3.5.1 | | | | | | | 136 | | | | | | | | 137 *---FreeBSD 4.1 | | | | | | | 138 | | | | (?) | | | | 139 | FreeBSD 4.1.1 | | / | | | | 140 | | | | / | | | | 141 | FreeBSD 4.2 Darwin/ | NetBSD 1.4.3 | | 142 | | Mac OS X | OpenBSD 2.8 BSD/OS 4.2 143 | | | | | | 144 | | | | | | 145 | | 10.0 NetBSD 1.5 | | 146 | FreeBSD 4.3 | | | | | 147 | | | | | OpenBSD 2.9 | 148 | | | | NetBSD 1.5.1 | | 149 | | | | | | | 150 | FreeBSD 4.4-. | | NetBSD 1.5.2 | | 151 | | | Mac OS X | | | | 152 | | | 10.1 | | OpenBSD 3.0 | 153 | FreeBSD 4.5 | | | | | | 154 | | \ | | | | BSD/OS 4.3 155 | FreeBSD 4.6 \ | | | OpenBSD 3.1 | 156 | | \ | | NetBSD 1.5.3 | | 157 | FreeBSD 4.6.2 Mac OS X | | | 158 | | 10.2 | | | 159 | FreeBSD 4.7 | | | | 160 | | | NetBSD 1.6 OpenBSD 3.2 | 161 | FreeBSD 4.8 | | | | | 162 | | | | NetBSD 1.6.1 | | 163 | |--------. | | | OpenBSD 3.3 BSD/OS 5.0 164 | | \ | | | | | 165 | FreeBSD 4.9 | | | | OpenBSD 3.4 BSD/OS 5.1 ISE 166 | | | | | | | 167 | | | | | NetBSD 1.6.2 | 168 | | | | | | | 169 | | | | | | OpenBSD 3.5 170 | | | | | v | 171 | FreeBSD 4.10 | | | | 172 | | | | | | 173 | FreeBSD 4.11 | | | | 174 | | | | | 175 | `-|------|-----------------|---------------------. 176 | | | | \ 177FreeBSD 5.0 | | | | 178 | | | | | 179FreeBSD 5.1 | | | DragonFly 1.0 180 | \ | | | | 181 | ----- Mac OS X | | | 182 | 10.3 | | | 183FreeBSD 5.2 | | | | 184 | | | | | | 185 | FreeBSD 5.2.1 | | | | 186 | | | | | 187 *-------FreeBSD 5.3 | | | | 188 | | | | OpenBSD 3.6 | 189 | | | NetBSD 2.0 | | 190 | | | | | | | DragonFly 1.2.0 191 | | Mac OS X | | NetBSD 2.0.2 | | 192 | | 10.4 | | | | | 193 | FreeBSD 5.4 | | | | | | 194 | | | | | | OpenBSD 3.7 | 195 | | | | | NetBSD 2.0.3 | | 196 | | | | | | | | 197 *--FreeBSD | | | | v OpenBSD 3.8 | 198 | 6.0 | | | | | | 199 | | | | | \ | | 200 | | | | | NetBSD 2.1 | | 201 | | | | | | | 202 | | | | NetBSD 3.0 | | 203 | | | | | | | | DragonFly 1.4.0 204 | | | | | | | OpenBSD 3.9 | 205 | FreeBSD | | | | | | | 206 | 6.1 | | | | | | | 207 | | FreeBSD 5.5 | | | | | | 208 | | | | | NetBSD 3.0.1 | DragonFly 1.6.0 209 | | | | | | | | 210 | | | | | | OpenBSD 4.0 | 211 | | | | | NetBSD 3.0.2 | | 212 | | | | NetBSD 3.1 | | 213 | FreeBSD 6.2 | | | | 214 | | | | | DragonFly 1.8.0 215 | | | | OpenBSD 4.1 | 216 | | | | | DragonFly 1.10.0 217 | | Mac OS X | | | 218 | | 10.5 | | | 219 | | | | OpenBSD 4.2 | 220 | | | NetBSD 4.0 | | 221 | FreeBSD 6.3 | | | | | 222 | \ | | | | | 223 *--FreeBSD | | | | | DragonFly 1.12.0 224 | 7.0 | | | | | | 225 | | | | | | OpenBSD 4.3 | 226 | | | | | NetBSD | DragonFly 2.0.0 227 | | FreeBSD | | 4.0.1 OpenBSD 4.4 | 228 | | 6.4 | | | | 229 | | | | | | 230 | FreeBSD 7.1 | | | | 231 | | | | | DragonFly 2.2.0 232 | FreeBSD 7.2 | NetBSD 5.0 OpenBSD 4.5 | 233 | \ | | | \ | | 234 | | Mac OS X | | \ | | 235 | | 10.6 | | \ | | 236 | | | | | NetBSD | DragonFly 2.4.0 237 | | | | | 5.0.1 OpenBSD 4.6 | 238 | | | | | | | | 239 *--FreeBSD | | | | | | | 240 | 8.0 | | | | | | | 241 | | FreeBSD | | | NetBSD | | 242 | | 7.3 | | | 5.0.2 | DragonFly 2.6.0 243 | | | | | | OpenBSD 4.7 | 244 | FreeBSD | | | | | | 245 | 8.1 | | | | | | 246 | | | | | | | DragonFly 2.8.2 247 | | | | | | OpenBSD 4.8 | 248 | | | | | *--NetBSD | | 249 | FreeBSD FreeBSD | | | 5.1 | | 250 | 8.2 7.4 | | | | | DragonFly 2.10.1 251 | | | | | | OpenBSD 4.9 | 252 | `-----. Mac OS X | | | | | 253 | \ 10.7 | | | | | 254 | | | | | | OpenBSD 5.0 | 255 *--FreeBSD | | | | | | | 256 | 9.0 | | | | NetBSD | DragonFly 3.0.1 257 | | FreeBSD | | | 5.1.2 | | 258 | | 8.3 | | | | | | 259 | | | | | | NetBSD | | 260 | | | | | | 5.1.3 | | 261 | | | | | | OpenBSD 5.1 | 262 | | | Mac OS X | `----. | | 263 | | | 10.8 | \ | | 264 | | | | NetBSD 6.0 | | | 265 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 266 | FreeBSD | | | | | NetBSD | | 267 | 9.1 | | | | | 5.2 | | 268 | | | | | | | | | | 269 | | | | | | | NetBSD | | 270 | | | | | | | 5.2.1 | | 271 | | | | | | | | | 272 | | | | | | \ | | 273 | | | | | | NetBSD | | 274 | | | | | | 6.0.1 | | 275 | | | | | | | | | 276 | | | | | | NetBSD | | 277 | | | | | | 6.0.2 | | 278 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1 279 | | | | | | NetBSD | | 280 | | | | | | 6.0.3 | | 281 | | | | | | | | | 282 | | | | | | NetBSD | | 283 | | | | | | 6.0.4 | | 284 | | | | | | | | | 285 | | | | | | NetBSD | | 286 | | | | | | 6.0.5 | | 287 | | | | | | | | 288 | | | | | |`-NetBSD 6.1 | | 289 | | FreeBSD | | | | | 290 | | 8.4 | | NetBSD 6.1.1 | | 291 | | | | | | | 292 | FreeBSD | | NetBSD 6.1.2 | | 293 | 9.2 Mac OS X | | | | 294 | | 10.9 | | OpenBSD 5.4 | 295 | `-----. | | | | DragonFly 3.6.0 296 | \ | | | | | 297 *--FreeBSD | | | NetBSD 6.1.3 | | 298 | 10.0 | | | | | | 299 | | | | | | | DragonFly 3.6.1 300 | | | | | | | | 301 | | | | | | | | 302 | | | | | | | DragonFly 3.6.2 303 | | | | | NetBSD 6.1.4 | | 304 | | | | | | | | 305 | | | | | | OpenBSD 5.5 | 306 | | | | | | | | 307 | | | | | | | DragonFly 3.8.0 308 | | | | | | | | 309 | | | | | | | | 310 | | | | | | | DragonFly 3.8.1 311 | | | | | | | | 312 | | | | | | | | 313 | | | | | | | DragonFly 3.6.3 314 | | | | | | | | 315 | | FreeBSD | | | | | 316 | | 9.3 | | | | | 317 | | | | NetBSD 6.1.5 | DragonFly 3.8.2 318 | | Mac OS X | | | 319 | | 10.10 | | | 320 | | | | OpenBSD 5.6 | 321 | FreeBSD | | | | 322 | 10.1 | | | DragonFly 4.0.1 323 | | | | | | 324 | | | | | DragonFly 4.0.2 325 | | | | | | 326 | | | | | DragonFly 4.0.3 327 | | | | | | 328 | | | | | DragonFly 4.0.4 329 | | | | | | 330 | | | | | DragonFly 4.0.5 331 | | | | | | 332 | | | | OpenBSD 5.7 | 333 | | | | | DragonFly 4.2.0 334 | FreeBSD | | | | 335 | 10.2 | | | | 336 | OS X NetBSD 7.0 | | 337 | 10.11 | OpenBSD 5.8 | 338 | | | | | 339FreeBSD 11 -current | NetBSD -current OpenBSD -current DragonFly -current 340 | | | | | 341 v v v v v 342 343Time 344---------------- 345 346Time tolerance +/- 6 months, depending on which book/article you read; if it 347was the announcement in Usenet or if it was available as tape. 348 349[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 350 and John Quarterman. The Design and Implementation of 351 the 4.4BSD Operating System. 352[APL] Apple website [http://www.apple.com/macosx/] 353[BSDI] Berkeley Software Design, Inc. 354[DFB] DragonFlyBSD Project, The. 355[DOC] README, COPYRIGHT on tape. 356[FBD] FreeBSD Project, The. 357[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 358 Volume 11, Info 4, April, 1987. 359[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 360 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 361[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 362 Changes in the Kernel in 2.9BSD. Second Berkeley Software 363 Distribution UNIX Version 2.9, July, 1983. 364[NBD] NetBSD Project, The. 365[OBD] OpenBSD Project, The. 366[QCU] Salus, Peter H. A quarter century of UNIX. 367[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 368[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 369[USE] Usenet announcement. 370[WRS] Wind River Systems, Inc. 371[dmr] Dennis Ritchie, via E-Mail 372 373Multics 1965 374UNIX Summer 1969 375 DEC PDP-7 376First Edition 1971-11-03 [QCU] 377 DEC PDP-11/20, Assembler 378Second Edition 1972-06-12 [QCU] 379 10 UNIX installations 380Third Edition 1973-02-xx [QCU] 381 Pipes, 16 installations 382Fourth Edition 1973-11-xx [QCU] 383 rewriting in C effected, 384 above 30 installations 385Fifth Edition 1974-06-xx [QCU] 386 above 50 installations 387Sixth Edition 1975-05-xx [QCU] 388 port to DEC Vax 389Seventh Edition 1979-01-xx [QCU] 390 first portable UNIX 391Eighth Edition 1985-02-xx [QCU] 392 VAX 11/750, VAX 11/780 [dmr] 393 descended from 4.1c BSD [dmr] 394 descended from 4.1 BSD [44B] 395 scooping-out and replacement of the character-device 396 and networking part by the streams mechanism 397 398Ninth Edition 1986-09-xx [QCU] 399Tenth Edition 1989-10-xx [QCU] 400 4011BSD late 1977 402 1978-03-09 [QCU] 403 PDP-11, Pascal, ex(1) 404 30 free copies of 1BSD sent out 405 35 tapes sold for 50 USD [QCU] 4062BSD mid 1978 [QCU] 1979-05-10 [TUHS] 407 75 2BSD tapes shipped 4082.79BSD 1980-04-xx [TUHS] 4092.8BSD 1981-07-xx [KSJ] 410 4112.8.1BSD 1982-01-xx [QCU] 412 set of performance improvements 4132.9BSD 1983-07-xx [KSJ] 4142.9.1BSD 1983-11-xx [TUHS] 4152.9BSD-Seismo 1985-08-xx [SMS] 4162.10BSD 1987-04-xx [KKK] 4172.10.1BSD 1989-01-xx [SMS] 4182.11BSD 1992-02-xx [SMS] 4192.11BSD rev #430 1999-12-13 [SMS] 420 42132V 1978-1[01]-xx [QCU] 4223BSD late 1979 [QCU] March 1980 [TUHS] 423 virtual memory, page replacement, 424 demand paging 4254.0BSD 1980-10-xx 4264.1BSD 1981-07-08 [DOC] 4274.1aBSD 1982-04-xx 428 alpha release, 100 sites, networking [44B] 4294.1bBSD internal release, fast filesystem [44B] 4304.1cBSD late 1982 431 beta release, IPC [44B] 4324.2BSD 1983-09-xx [QCU] 433 1983-08-03 [DOC] 4344.3BSD 1986-06-xx [QCU] 435 1986-04-05 [KB], [DOC] 4364.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4374.3BSD NET/1 1988-11-xx [QCU] 438 1989-01-01 [DOC] 4394.3BSD Reno 1990-06-29 [QCU], [DOC] 4404.3BSD NET/2 1991-06-28 [QCU], [DOC] 441 442BSD/386 ALPHA 1991-12-xx [BSDI] 443 first code released to people outside BSDI 444386BSD 0.0 1992-02-xx [DOC] 445BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 446BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 447386BSD 0.1 1992-07-28 [DOC] 4484.4BSD Alpha 1992-07-07 449BSD/386 0.9.3 1992-10-xx [BSDI] 450 first external gamma; G customers 451BSD/386 0.9.4 1992-12-xx [BSDI] 452 would have been 1.0 except for request 453 for preliminary injunction 454BSD/386 1.0 1993-03-xx [BSDI] 455 injunction denied; first official release 456NetBSD 0.8 1993-04-20 [NBD] 4574.4BSD 1993-06-01 [USE] 458NetBSD 0.9 1993-08-23 [NBD] 459FreeBSD 1.0 1993-11-01 [FBD] 460FreeBSD 1.0.2 1993-11-14 [FBD] 461 supersedes 1.0 13 days after release. 462BSD/386 1.1 1994-02-xx [BSDI] 4634.4BSD Lite 1994-03-01 [USE] 464FreeBSD 1.1 1994-05-07 [FBD] 465FreeBSD 1.1.5 1994-06-30 [FBD] 466FreeBSD 1.1.5.1 1994-07-05 [FBD] 467 supersedes 1.1.5 5 days after release. 468NetBSD 1.0 1994-10-26 [NBD] 469386BSD 1.0 1994-11-12 [USE] 470FreeBSD 2.0 1994-11-23 [FBD] 471BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 472FreeBSD 2.0.5 1995-06-10 [FBD] 473BSD/OS 2.0.1 1995-06-xx [BSDI] 4744.4BSD Lite Release 2 1995-06-xx [44B] 475 the true final distribution from the CSRG 476FreeBSD 2.1.0 1995-11-19 [FBD] 477NetBSD 1.1 1995-11-26 [NBD] 478BSD/OS 2.1 1996-01-xx [BSDI] 479FreeBSD 2.1.5 1996-07-14 [FBD] 480NetBSD 1.2 1996-10-04 [NBD] 481OpenBSD 2.0 1996-10-18 [OBD] 482FreeBSD 2.1.6 1996-11-16 [FBD] 483FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 484Rhapsody 1997-xx-xx 485FreeBSD 2.1.7 1997-02-20 [FBD] 486BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 487FreeBSD 2.2.0 1997-03-16 [FBD] 488FreeBSD 2.2.1 1997-03-25 [FBD] 489FreeBSD 2.2.2 1997-05-16 [FBD] 490NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 491OpenBSD 2.1 1997-06-01 [OBD] 492FreeBSD 2.2.5 1997-10-22 [FBD] 493OpenBSD 2.2 1997-12-01 [OBD] 494NetBSD 1.3 1998-01-04 [NBD] 495FreeBSD 2.2.6 1998-03-25 [FBD] 496NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 497BSD/OS 3.1 1998-03-xx [BSDI] 498OpenBSD 2.3 1998-05-19 [OBD] 499NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 500FreeBSD 2.2.7 1998-07-22 [FBD] 501BSD/OS 4.0 1998-08-xx [BSDI] 502 2-lock MP support, ELF executables 503FreeBSD 3.0 1998-10-16 [FBD] 504 FreeBSD-3.0 is a snapshot from -current, 505 while 3.1 and 3.2 are from 3.x-stable which 506 was branched quite some time after 3.0-release 507FreeBSD 2.2.8 1998-11-29 [FBD] 508OpenBSD 2.4 1998-12-01 [OBD] 509NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 510FreeBSD 3.1 1999-02-15 [FBD] 511BSD/OS 4.0.1 1999-03-xx [BSDI] 512NetBSD 1.4 1999-05-12 [NBD] 513FreeBSD 3.2 1999-05-17 [FBD] 514OpenBSD 2.5 1999-05-19 [OBD] 515NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 516FreeBSD 3.3 1999-09-17 [FBD] 517OpenBSD 2.6 1999-12-01 [OBD] 518FreeBSD 3.4 1999-12-20 [FBD] 519BSD/OS 4.1 1999-12-xx [BSDI] 520FreeBSD 4.0 2000-03-13 [FBD] 521NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 522OpenBSD 2.7 2000-06-15 [OBD] 523FreeBSD 3.5 2000-06-24 [FBD] 524FreeBSD 4.1 2000-07-27 [FBD] 525FreeBSD 3.5.1 2000-07-28 [FBD] 526FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 527FreeBSD 4.2 2000-11-21 [FBD] 528NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 529BSD/OS 4.2 2000-11-29 [BSDI] 530OpenBSD 2.8 2000-12-01 [OBD] 531NetBSD 1.5 2000-12-06 [NBD] 532Mac OS X 10.0 2001-03-24 [APL] 533FreeBSD 4.3 2001-04-20 [FBD] 534OpenBSD 2.9 2001-06-01 [OBD] 535NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 536NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 537FreeBSD 4.4 2001-09-18 [FBD] 538Mac OS X 10.1 2001-09-29 [APL] 539OpenBSD 3.0 2001-12-01 [OBD] 540FreeBSD 4.5 2002-01-29 [FBD] 541BSD/OS 4.3 2002-03-14 [WRS] 542OpenBSD 3.1 2002-05-19 [OBD] 543FreeBSD 4.6 2002-06-15 [FBD] 544NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 545FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 546Mac OS X 10.2 2002-08-23 [APL] 547NetBSD 1.6 2002-09-14 [NBD] 548FreeBSD 4.7 2002-10-08 [FBD] 549OpenBSD 3.2 2002-11-01 [OBD] 550FreeBSD 5.0 2003-01-17 [FBD] 551 FreeBSD 5.0 is a separate branch off of 552 -current, similar to 3.0. 553FreeBSD 4.8 2003-04-03 [FBD] 554NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 555OpenBSD 3.3 2003-05-01 [OBD] 556BSD/OS 5.0 2003-05-?? [WRS] 557FreeBSD 5.1 2003-06-09 [FBD] 558Mac OS X 10.3 2003-10-24 [APL] 559FreeBSD 4.9 2003-10-28 [FBD] 560BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 561OpenBSD 3.4 2003-11-01 [OBD] 562FreeBSD 5.2 2004-01-12 [FBD] 563FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 564NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 565OpenBSD 3.5 2004-04-01 [OBD] 566FreeBSD 4.10 2004-05-27 [FBD] 567DragonFly 1.0 2004-07-12 [DFB] 568OpenBSD 3.6 2004-10-29 [OBD] 569FreeBSD 5.3 2004-11-06 [FBD] 570NetBSD 2.0 2004-12-09 [NBD] 571FreeBSD 4.11 2005-01-25 [FBD] 572DragonFly 1.2.0 2005-04-08 [DFB] 573NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 574Mac OS X 10.4 2005-04-29 [APL] 575FreeBSD 5.4 2005-05-09 [FBD] 576OpenBSD 3.7 2005-05-19 [OBD] 577NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 578OpenBSD 3.8 2005-11-01 [OBD] 579FreeBSD 6.0 2005-11-01 [FBD] 580NetBSD 2.1 2005-11-02 [NBD] 581NetBSD 3.0 2005-12-23 [NBD] 582DragonFly 1.4.0 2006-01-08 [DFB] 583FreeBSD 2.2.9 2006-04-01 [FBD] 584OpenBSD 3.9 2006-05-01 [OBD] 585FreeBSD 6.1 2006-05-08 [FBD] 586FreeBSD 5.5 2006-05-25 [FBD] 587NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 588DragonFly 1.6.0 2006-07-24 [DFB] 589OpenBSD 4.0 2006-11-01 [OBD] 590NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 591NetBSD 3.1 2006-11-04 [NBD] 592FreeBSD 6.2 2007-01-15 [FBD] 593DragonFly 1.8.0 2007-01-30 [DFB] 594OpenBSD 4.1 2007-05-01 [OBD] 595DragonFly 1.10.0 2007-08-06 [DFB] 596Mac OS X 10.5 2007-10-26 [APL] 597OpenBSD 4.2 2007-11-01 [OBD] 598NetBSD 4.0 2007-12-19 [NBD] 599FreeBSD 6.3 2008-01-18 [FBD] 600DragonFly 1.12.0 2008-02-26 [DFB] 601FreeBSD 7.0 2008-02-27 [FBD] 602OpenBSD 4.3 2008-05-01 [OBD] 603DragonFly 2.0.0 2008-07-21 [DFB] 604OpenBSD 4.4 2008-11-01 [OBD] 605FreeBSD 6.4 2008-11-28 [FBD] 606FreeBSD 7.1 2009-01-04 [FBD] 607DragonFly 2.2.0 2009-02-17 [DFB] 608NetBSD 5.0 2009-04-29 [NBD] 609OpenBSD 4.5 2009-05-01 [OBD] 610FreeBSD 7.2 2009-05-04 [FBD] 611Mac OS X 10.6 2009-06-08 [APL] 612NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 613DragonFly 2.4.0 2009-09-16 [DFB] 614OpenBSD 4.6 2009-10-18 [OBD] 615FreeBSD 8.0 2009-11-26 [FBD] 616NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 617FreeBSD 7.3 2010-03-23 [FBD] 618DragonFly 2.6.0 2010-03-28 [DFB] 619OpenBSD 4.7 2010-05-19 [OBD] 620FreeBSD 8.1 2010-07-24 [FBD] 621DragonFly 2.8.2 2010-10-30 [DFB] 622OpenBSD 4.8 2010-11-01 [OBD] 623NetBSD 5.1 2010-11-19 [NBD] 624FreeBSD 7.4 2011-02-24 [FBD] 625FreeBSD 8.2 2011-02-24 [FBD] 626DragonFly 2.10.1 2011-04-26 [DFB] 627OpenBSD 4.9 2011-05-01 [OBD] 628Mac OS X 10.7 2011-07-20 [APL] 629OpenBSD 5.0 2011-11-01 [OBD] 630FreeBSD 9.0 2012-01-12 [FBD] 631NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 632DragonFly 3.0.1 2012-02-21 [DFB] 633FreeBSD 8.3 2012-04-18 [FBD] 634OpenBSD 5.1 2012-05-01 [OBD] 635Mac OS X 10.8 2012-07-25 [APL] 636NetBSD 6.0 2012-10-17 [NBD] 637OpenBSD 5.2 2012-11-01 [OBD] 638DragonFly 3.2.1 2012-11-02 [DFB] 639NetBSD 5.2 2012-12-03 [NBD] 640NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 641FreeBSD 9.1 2012-12-30 [FBD] 642DragonFly 3.4.1 2013-04-29 [DFB] 643OpenBSD 5.3 2013-05-01 [OBD] 644NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 645NetBSD 6.1 2013-05-18 [NBD] 646FreeBSD 8.4 2013-06-07 [FBD] 647NetBSD 6.1.1 2013-08-22 [NBD] 648NetBSD 5.1.3 2013-09-29 [NBD] 649NetBSD 5.2.1 2013-09-29 [NBD] 650FreeBSD 9.2 2013-09-30 [FBD] 651NetBSD 6.0.3 2013-09-30 [NBD] 652NetBSD 6.1.2 2013-09-30 [NBD] 653Mac OS X 10.9 2013-10-22 [APL] 654OpenBSD 5.4 2013-11-01 [OBD] 655DragonFly 3.6.0 2013-11-25 [DFB] 656FreeBSD 10.0 2014-01-20 [FBD] 657NetBSD 6.0.4 2014-01-27 [NBD] 658NetBSD 6.1.3 2014-01-27 [NBD] 659DragonFly 3.6.1 2014-02-22 [DFB] 660DragonFly 3.6.2 2014-04-10 [DFB] 661NetBSD 6.0.5 2014-04-19 [NDB] 662NetBSD 6.1.4 2014-04-19 [NDB] 663OpenBSD 5.5 2014-05-01 [OBD] 664DragonFly 3.8.0 2014-06-04 [DFB] 665DragonFly 3.8.1 2014-06-16 [DFB] 666DragonFly 3.6.3 2014-06-17 [DFB] 667FreeBSD 9.3 2014-07-05 [FBD] 668DragonFly 3.8.2 2014-08-08 [DFB] 669NetBSD 6.1.5 2014-09-22 [NBD] 670Mac OS X 10.10 2014-10-16 [APL] 671OpenBSD 5.6 2014-11-01 [OBD] 672FreeBSD 10.1 2014-11-14 [FBD] 673DragonFly 4.0.1 2014-11-25 [DFB] 674DragonFly 4.0.2 2015-01-07 [DFB] 675DragonFly 4.0.3 2015-01-21 [DFB] 676DragonFly 4.0.4 2015-03-09 [DFB] 677DragonFly 4.0.5 2015-03-23 [DFB] 678OpenBSD 5.7 2015-05-01 [OBD] 679DragonFly 4.2.0 2015-06-29 [DFB] 680FreeBSD 10.2 2015-08-13 [FBD] 681NetBSD 7.0 2015-09-25 [NBD] 682OS X 10.11 2015-09-30 [APL] 683OpenBSD 5.8 2015-10-18 [OBD] 684 685Bibliography 686------------------------ 687 688Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 689Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 690System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 691 692Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 693Company, Inc., 1994. ISBN 0-201-54777-5 694 695McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 696Quarterman. The Design and Implementation of the 4.4BSD Operating 697System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 698 699McKusick, Marshall Kirk, George Neville-Neil. The Design and 700Implementation of the FreeBSD Operating System. 701Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 702 703McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 704Design and Implementation of the FreeBSD Operating System, 2nd Edition. 705Pearson Education, Inc., 2014. ISBN 0-321-96897-2 706 707Doug McIlroy. Research Unix Reader. 708 709Michael G. Brown. The Role of BSD in the Development of Unix. 710Presented to the Tasmanian Unix Special Interest Group of the 711Australian Computer Society, Hobart, August 1993. 712 713Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 714URL: http://www.byte.com/art/9410/sec8/art3.htm 715 716Andreas Klemm, Lars Köller. If you're going to San Francisco ... 717Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 718 719BSD Release Announcements collection. 720URL: http://www.FreeBSD.org/releases/ 721 722BSD Hypertext Man Pages 723URL: http://www.FreeBSD.org/cgi/man.cgi 724 725UNIX history graphing project 726URL: http://minnie.tuhs.org/Unix_History/index.html 727 728UNIX history 729URL: http://www.levenez.com/unix/ 730 731James Howard: The BSD Family Tree 732URL: http://ezine.daemonnews.org/200104/bsd_family.html 733("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 734 735 736Acknowledgments 737--------------- 738 739Josh Gilliam for suggestions, bug fixes, and finding very old 740original BSD announcements from Usenet or tapes. 741 742Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 743 744-- 745Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 746URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 747 748$FreeBSD: head/share/misc/bsd-family-tree 289623 2015-10-20 11:37:16Z pluknet $ 749