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 | | | | DragonFly 4.4.1 339 | | | | | 340FreeBSD 11 -current | NetBSD -current OpenBSD -current DragonFly -current 341 | | | | | 342 v v v v v 343 344Time 345---------------- 346 347Time tolerance +/- 6 months, depending on which book/article you read; if it 348was the announcement in Usenet or if it was available as tape. 349 350[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 351 and John Quarterman. The Design and Implementation of 352 the 4.4BSD Operating System. 353[APL] Apple website [http://www.apple.com/macosx/] 354[BSDI] Berkeley Software Design, Inc. 355[DFB] DragonFlyBSD Project, The. 356[DOC] README, COPYRIGHT on tape. 357[FBD] FreeBSD Project, The. 358[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 359 Volume 11, Info 4, April, 1987. 360[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 361 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 362[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 363 Changes in the Kernel in 2.9BSD. Second Berkeley Software 364 Distribution UNIX Version 2.9, July, 1983. 365[NBD] NetBSD Project, The. 366[OBD] OpenBSD Project, The. 367[QCU] Salus, Peter H. A quarter century of UNIX. 368[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 369[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 370[USE] Usenet announcement. 371[WRS] Wind River Systems, Inc. 372[dmr] Dennis Ritchie, via E-Mail 373 374Multics 1965 375UNIX Summer 1969 376 DEC PDP-7 377First Edition 1971-11-03 [QCU] 378 DEC PDP-11/20, Assembler 379Second Edition 1972-06-12 [QCU] 380 10 UNIX installations 381Third Edition 1973-02-xx [QCU] 382 Pipes, 16 installations 383Fourth Edition 1973-11-xx [QCU] 384 rewriting in C effected, 385 above 30 installations 386Fifth Edition 1974-06-xx [QCU] 387 above 50 installations 388Sixth Edition 1975-05-xx [QCU] 389 port to DEC Vax 390Seventh Edition 1979-01-xx [QCU] 391 first portable UNIX 392Eighth Edition 1985-02-xx [QCU] 393 VAX 11/750, VAX 11/780 [dmr] 394 descended from 4.1c BSD [dmr] 395 descended from 4.1 BSD [44B] 396 scooping-out and replacement of the character-device 397 and networking part by the streams mechanism 398 399Ninth Edition 1986-09-xx [QCU] 400Tenth Edition 1989-10-xx [QCU] 401 4021BSD late 1977 403 1978-03-09 [QCU] 404 PDP-11, Pascal, ex(1) 405 30 free copies of 1BSD sent out 406 35 tapes sold for 50 USD [QCU] 4072BSD mid 1978 [QCU] 1979-05-10 [TUHS] 408 75 2BSD tapes shipped 4092.79BSD 1980-04-xx [TUHS] 4102.8BSD 1981-07-xx [KSJ] 411 4122.8.1BSD 1982-01-xx [QCU] 413 set of performance improvements 4142.9BSD 1983-07-xx [KSJ] 4152.9.1BSD 1983-11-xx [TUHS] 4162.9BSD-Seismo 1985-08-xx [SMS] 4172.10BSD 1987-04-xx [KKK] 4182.10.1BSD 1989-01-xx [SMS] 4192.11BSD 1992-02-xx [SMS] 4202.11BSD rev #430 1999-12-13 [SMS] 421 42232V 1978-1[01]-xx [QCU] 4233BSD late 1979 [QCU] March 1980 [TUHS] 424 virtual memory, page replacement, 425 demand paging 4264.0BSD 1980-10-xx 4274.1BSD 1981-07-08 [DOC] 4284.1aBSD 1982-04-xx 429 alpha release, 100 sites, networking [44B] 4304.1bBSD internal release, fast filesystem [44B] 4314.1cBSD late 1982 432 beta release, IPC [44B] 4334.2BSD 1983-09-xx [QCU] 434 1983-08-03 [DOC] 4354.3BSD 1986-06-xx [QCU] 436 1986-04-05 [KB], [DOC] 4374.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4384.3BSD NET/1 1988-11-xx [QCU] 439 1989-01-01 [DOC] 4404.3BSD Reno 1990-06-29 [QCU], [DOC] 4414.3BSD NET/2 1991-06-28 [QCU], [DOC] 442 443BSD/386 ALPHA 1991-12-xx [BSDI] 444 first code released to people outside BSDI 445386BSD 0.0 1992-02-xx [DOC] 446BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 447BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 448386BSD 0.1 1992-07-28 [DOC] 4494.4BSD Alpha 1992-07-07 450BSD/386 0.9.3 1992-10-xx [BSDI] 451 first external gamma; G customers 452BSD/386 0.9.4 1992-12-xx [BSDI] 453 would have been 1.0 except for request 454 for preliminary injunction 455BSD/386 1.0 1993-03-xx [BSDI] 456 injunction denied; first official release 457NetBSD 0.8 1993-04-20 [NBD] 4584.4BSD 1993-06-01 [USE] 459NetBSD 0.9 1993-08-23 [NBD] 460FreeBSD 1.0 1993-11-01 [FBD] 461FreeBSD 1.0.2 1993-11-14 [FBD] 462 supersedes 1.0 13 days after release. 463BSD/386 1.1 1994-02-xx [BSDI] 4644.4BSD Lite 1994-03-01 [USE] 465FreeBSD 1.1 1994-05-07 [FBD] 466FreeBSD 1.1.5 1994-06-30 [FBD] 467FreeBSD 1.1.5.1 1994-07-05 [FBD] 468 supersedes 1.1.5 5 days after release. 469NetBSD 1.0 1994-10-26 [NBD] 470386BSD 1.0 1994-11-12 [USE] 471FreeBSD 2.0 1994-11-23 [FBD] 472BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 473FreeBSD 2.0.5 1995-06-10 [FBD] 474BSD/OS 2.0.1 1995-06-xx [BSDI] 4754.4BSD Lite Release 2 1995-06-xx [44B] 476 the true final distribution from the CSRG 477FreeBSD 2.1.0 1995-11-19 [FBD] 478NetBSD 1.1 1995-11-26 [NBD] 479BSD/OS 2.1 1996-01-xx [BSDI] 480FreeBSD 2.1.5 1996-07-14 [FBD] 481NetBSD 1.2 1996-10-04 [NBD] 482OpenBSD 2.0 1996-10-18 [OBD] 483FreeBSD 2.1.6 1996-11-16 [FBD] 484FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 485Rhapsody 1997-xx-xx 486FreeBSD 2.1.7 1997-02-20 [FBD] 487BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 488FreeBSD 2.2.0 1997-03-16 [FBD] 489FreeBSD 2.2.1 1997-03-25 [FBD] 490FreeBSD 2.2.2 1997-05-16 [FBD] 491NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 492OpenBSD 2.1 1997-06-01 [OBD] 493FreeBSD 2.2.5 1997-10-22 [FBD] 494OpenBSD 2.2 1997-12-01 [OBD] 495NetBSD 1.3 1998-01-04 [NBD] 496FreeBSD 2.2.6 1998-03-25 [FBD] 497NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 498BSD/OS 3.1 1998-03-xx [BSDI] 499OpenBSD 2.3 1998-05-19 [OBD] 500NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 501FreeBSD 2.2.7 1998-07-22 [FBD] 502BSD/OS 4.0 1998-08-xx [BSDI] 503 2-lock MP support, ELF executables 504FreeBSD 3.0 1998-10-16 [FBD] 505 FreeBSD-3.0 is a snapshot from -current, 506 while 3.1 and 3.2 are from 3.x-stable which 507 was branched quite some time after 3.0-release 508FreeBSD 2.2.8 1998-11-29 [FBD] 509OpenBSD 2.4 1998-12-01 [OBD] 510NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 511FreeBSD 3.1 1999-02-15 [FBD] 512BSD/OS 4.0.1 1999-03-xx [BSDI] 513NetBSD 1.4 1999-05-12 [NBD] 514FreeBSD 3.2 1999-05-17 [FBD] 515OpenBSD 2.5 1999-05-19 [OBD] 516NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 517FreeBSD 3.3 1999-09-17 [FBD] 518OpenBSD 2.6 1999-12-01 [OBD] 519FreeBSD 3.4 1999-12-20 [FBD] 520BSD/OS 4.1 1999-12-xx [BSDI] 521FreeBSD 4.0 2000-03-13 [FBD] 522NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 523OpenBSD 2.7 2000-06-15 [OBD] 524FreeBSD 3.5 2000-06-24 [FBD] 525FreeBSD 4.1 2000-07-27 [FBD] 526FreeBSD 3.5.1 2000-07-28 [FBD] 527FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 528FreeBSD 4.2 2000-11-21 [FBD] 529NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 530BSD/OS 4.2 2000-11-29 [BSDI] 531OpenBSD 2.8 2000-12-01 [OBD] 532NetBSD 1.5 2000-12-06 [NBD] 533Mac OS X 10.0 2001-03-24 [APL] 534FreeBSD 4.3 2001-04-20 [FBD] 535OpenBSD 2.9 2001-06-01 [OBD] 536NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 537NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 538FreeBSD 4.4 2001-09-18 [FBD] 539Mac OS X 10.1 2001-09-29 [APL] 540OpenBSD 3.0 2001-12-01 [OBD] 541FreeBSD 4.5 2002-01-29 [FBD] 542BSD/OS 4.3 2002-03-14 [WRS] 543OpenBSD 3.1 2002-05-19 [OBD] 544FreeBSD 4.6 2002-06-15 [FBD] 545NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 546FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 547Mac OS X 10.2 2002-08-23 [APL] 548NetBSD 1.6 2002-09-14 [NBD] 549FreeBSD 4.7 2002-10-08 [FBD] 550OpenBSD 3.2 2002-11-01 [OBD] 551FreeBSD 5.0 2003-01-17 [FBD] 552 FreeBSD 5.0 is a separate branch off of 553 -current, similar to 3.0. 554FreeBSD 4.8 2003-04-03 [FBD] 555NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 556OpenBSD 3.3 2003-05-01 [OBD] 557BSD/OS 5.0 2003-05-?? [WRS] 558FreeBSD 5.1 2003-06-09 [FBD] 559Mac OS X 10.3 2003-10-24 [APL] 560FreeBSD 4.9 2003-10-28 [FBD] 561BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 562OpenBSD 3.4 2003-11-01 [OBD] 563FreeBSD 5.2 2004-01-12 [FBD] 564FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 565NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 566OpenBSD 3.5 2004-04-01 [OBD] 567FreeBSD 4.10 2004-05-27 [FBD] 568DragonFly 1.0 2004-07-12 [DFB] 569OpenBSD 3.6 2004-10-29 [OBD] 570FreeBSD 5.3 2004-11-06 [FBD] 571NetBSD 2.0 2004-12-09 [NBD] 572FreeBSD 4.11 2005-01-25 [FBD] 573DragonFly 1.2.0 2005-04-08 [DFB] 574NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 575Mac OS X 10.4 2005-04-29 [APL] 576FreeBSD 5.4 2005-05-09 [FBD] 577OpenBSD 3.7 2005-05-19 [OBD] 578NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 579OpenBSD 3.8 2005-11-01 [OBD] 580FreeBSD 6.0 2005-11-01 [FBD] 581NetBSD 2.1 2005-11-02 [NBD] 582NetBSD 3.0 2005-12-23 [NBD] 583DragonFly 1.4.0 2006-01-08 [DFB] 584FreeBSD 2.2.9 2006-04-01 [FBD] 585OpenBSD 3.9 2006-05-01 [OBD] 586FreeBSD 6.1 2006-05-08 [FBD] 587FreeBSD 5.5 2006-05-25 [FBD] 588NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 589DragonFly 1.6.0 2006-07-24 [DFB] 590OpenBSD 4.0 2006-11-01 [OBD] 591NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 592NetBSD 3.1 2006-11-04 [NBD] 593FreeBSD 6.2 2007-01-15 [FBD] 594DragonFly 1.8.0 2007-01-30 [DFB] 595OpenBSD 4.1 2007-05-01 [OBD] 596DragonFly 1.10.0 2007-08-06 [DFB] 597Mac OS X 10.5 2007-10-26 [APL] 598OpenBSD 4.2 2007-11-01 [OBD] 599NetBSD 4.0 2007-12-19 [NBD] 600FreeBSD 6.3 2008-01-18 [FBD] 601DragonFly 1.12.0 2008-02-26 [DFB] 602FreeBSD 7.0 2008-02-27 [FBD] 603OpenBSD 4.3 2008-05-01 [OBD] 604DragonFly 2.0.0 2008-07-21 [DFB] 605OpenBSD 4.4 2008-11-01 [OBD] 606FreeBSD 6.4 2008-11-28 [FBD] 607FreeBSD 7.1 2009-01-04 [FBD] 608DragonFly 2.2.0 2009-02-17 [DFB] 609NetBSD 5.0 2009-04-29 [NBD] 610OpenBSD 4.5 2009-05-01 [OBD] 611FreeBSD 7.2 2009-05-04 [FBD] 612Mac OS X 10.6 2009-06-08 [APL] 613NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 614DragonFly 2.4.0 2009-09-16 [DFB] 615OpenBSD 4.6 2009-10-18 [OBD] 616FreeBSD 8.0 2009-11-26 [FBD] 617NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 618FreeBSD 7.3 2010-03-23 [FBD] 619DragonFly 2.6.0 2010-03-28 [DFB] 620OpenBSD 4.7 2010-05-19 [OBD] 621FreeBSD 8.1 2010-07-24 [FBD] 622DragonFly 2.8.2 2010-10-30 [DFB] 623OpenBSD 4.8 2010-11-01 [OBD] 624NetBSD 5.1 2010-11-19 [NBD] 625FreeBSD 7.4 2011-02-24 [FBD] 626FreeBSD 8.2 2011-02-24 [FBD] 627DragonFly 2.10.1 2011-04-26 [DFB] 628OpenBSD 4.9 2011-05-01 [OBD] 629Mac OS X 10.7 2011-07-20 [APL] 630OpenBSD 5.0 2011-11-01 [OBD] 631FreeBSD 9.0 2012-01-12 [FBD] 632NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 633DragonFly 3.0.1 2012-02-21 [DFB] 634FreeBSD 8.3 2012-04-18 [FBD] 635OpenBSD 5.1 2012-05-01 [OBD] 636Mac OS X 10.8 2012-07-25 [APL] 637NetBSD 6.0 2012-10-17 [NBD] 638OpenBSD 5.2 2012-11-01 [OBD] 639DragonFly 3.2.1 2012-11-02 [DFB] 640NetBSD 5.2 2012-12-03 [NBD] 641NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 642FreeBSD 9.1 2012-12-30 [FBD] 643DragonFly 3.4.1 2013-04-29 [DFB] 644OpenBSD 5.3 2013-05-01 [OBD] 645NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 646NetBSD 6.1 2013-05-18 [NBD] 647FreeBSD 8.4 2013-06-07 [FBD] 648NetBSD 6.1.1 2013-08-22 [NBD] 649NetBSD 5.1.3 2013-09-29 [NBD] 650NetBSD 5.2.1 2013-09-29 [NBD] 651FreeBSD 9.2 2013-09-30 [FBD] 652NetBSD 6.0.3 2013-09-30 [NBD] 653NetBSD 6.1.2 2013-09-30 [NBD] 654Mac OS X 10.9 2013-10-22 [APL] 655OpenBSD 5.4 2013-11-01 [OBD] 656DragonFly 3.6.0 2013-11-25 [DFB] 657FreeBSD 10.0 2014-01-20 [FBD] 658NetBSD 6.0.4 2014-01-27 [NBD] 659NetBSD 6.1.3 2014-01-27 [NBD] 660DragonFly 3.6.1 2014-02-22 [DFB] 661DragonFly 3.6.2 2014-04-10 [DFB] 662NetBSD 6.0.5 2014-04-19 [NDB] 663NetBSD 6.1.4 2014-04-19 [NDB] 664OpenBSD 5.5 2014-05-01 [OBD] 665DragonFly 3.8.0 2014-06-04 [DFB] 666DragonFly 3.8.1 2014-06-16 [DFB] 667DragonFly 3.6.3 2014-06-17 [DFB] 668FreeBSD 9.3 2014-07-05 [FBD] 669DragonFly 3.8.2 2014-08-08 [DFB] 670NetBSD 6.1.5 2014-09-22 [NBD] 671Mac OS X 10.10 2014-10-16 [APL] 672OpenBSD 5.6 2014-11-01 [OBD] 673FreeBSD 10.1 2014-11-14 [FBD] 674DragonFly 4.0.1 2014-11-25 [DFB] 675DragonFly 4.0.2 2015-01-07 [DFB] 676DragonFly 4.0.3 2015-01-21 [DFB] 677DragonFly 4.0.4 2015-03-09 [DFB] 678DragonFly 4.0.5 2015-03-23 [DFB] 679OpenBSD 5.7 2015-05-01 [OBD] 680DragonFly 4.2.0 2015-06-29 [DFB] 681FreeBSD 10.2 2015-08-13 [FBD] 682NetBSD 7.0 2015-09-25 [NBD] 683OS X 10.11 2015-09-30 [APL] 684OpenBSD 5.8 2015-10-18 [OBD] 685DragonFly 4.4.1 2015-12-07 [DFB] 686 687Bibliography 688------------------------ 689 690Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 691Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 692System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 693 694Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 695Company, Inc., 1994. ISBN 0-201-54777-5 696 697McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 698Quarterman. The Design and Implementation of the 4.4BSD Operating 699System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 700 701McKusick, Marshall Kirk, George Neville-Neil. The Design and 702Implementation of the FreeBSD Operating System. 703Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 704 705McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 706Design and Implementation of the FreeBSD Operating System, 2nd Edition. 707Pearson Education, Inc., 2014. ISBN 0-321-96897-2 708 709Doug McIlroy. Research Unix Reader. 710 711Michael G. Brown. The Role of BSD in the Development of Unix. 712Presented to the Tasmanian Unix Special Interest Group of the 713Australian Computer Society, Hobart, August 1993. 714 715Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 716URL: http://www.byte.com/art/9410/sec8/art3.htm 717 718Andreas Klemm, Lars Köller. If you're going to San Francisco ... 719Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 720 721BSD Release Announcements collection. 722URL: http://www.FreeBSD.org/releases/ 723 724BSD Hypertext Man Pages 725URL: http://www.FreeBSD.org/cgi/man.cgi 726 727UNIX history graphing project 728URL: http://minnie.tuhs.org/Unix_History/index.html 729 730UNIX history 731URL: http://www.levenez.com/unix/ 732 733James Howard: The BSD Family Tree 734URL: http://ezine.daemonnews.org/200104/bsd_family.html 735("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 736 737 738Acknowledgments 739--------------- 740 741Josh Gilliam for suggestions, bug fixes, and finding very old 742original BSD announcements from Usenet or tapes. 743 744Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 745 746-- 747Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 748URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 749 750$FreeBSD: head/share/misc/bsd-family-tree 291977 2015-12-08 01:16:53Z maxim $ 751