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 | | | | | | | | | 262 | | | | | | NetBSD | | 263 | | | | | | 5.1.4 | | 264 | | | | | | OpenBSD 5.1 | 265 | | | Mac OS X | `----. | | 266 | | | 10.8 | \ | | 267 | | | | NetBSD 6.0 | | | 268 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 269 | FreeBSD | | | | | NetBSD | | 270 | 9.1 | | | | | 5.2 | | 271 | | | | | | | | | | 272 | | | | | | | NetBSD | | 273 | | | | | | | 5.2.1 | | 274 | | | | | | | | | | 275 | | | | | | | NetBSD | | 276 | | | | | | | 5.2.2 | | 277 | | | | | | | | | 278 | | | | | | \ | | 279 | | | | | | NetBSD | | 280 | | | | | | 6.0.1 | | 281 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1 282 | | | | | | NetBSD | | 283 | | | | | | 6.0.2 | | 284 | | | | | | | | | 285 | | | | | | NetBSD | | 286 | | | | | | 6.0.3 | | 287 | | | | | | | | | 288 | | | | | | NetBSD | | 289 | | | | | | 6.0.4 | | 290 | | | | | | | | | 291 | | | | | | NetBSD | | 292 | | | | | | 6.0.5 | | 293 | | | | | | | | 294 | | | | | |`-NetBSD 6.1 | | 295 | | FreeBSD | | | | | 296 | | 8.4 | | NetBSD 6.1.1 | | 297 | | | | | | | 298 | FreeBSD | | NetBSD 6.1.2 | | 299 | 9.2 Mac OS X | | | | 300 | | 10.9 | | OpenBSD 5.4 | 301 | `-----. | | | | DragonFly 3.6.0 302 | \ | | | | | 303 *--FreeBSD | | | NetBSD 6.1.3 | | 304 | 10.0 | | | | | | 305 | | | | | | | DragonFly 3.6.1 306 | | | | | | | | 307 | | | | | | | | 308 | | | | | | | DragonFly 3.6.2 309 | | | | | NetBSD 6.1.4 | | 310 | | | | | | | | 311 | | | | | | OpenBSD 5.5 | 312 | | | | | | | | 313 | | | | | | | DragonFly 3.8.0 314 | | | | | | | | 315 | | | | | | | | 316 | | | | | | | DragonFly 3.8.1 317 | | | | | | | | 318 | | | | | | | | 319 | | | | | | | DragonFly 3.6.3 320 | | | | | | | | 321 | | FreeBSD | | | | | 322 | | 9.3 | | | | | 323 | | | | NetBSD 6.1.5 | DragonFly 3.8.2 324 | | Mac OS X | | | 325 | | 10.10 | | | 326 | | | | OpenBSD 5.6 | 327 | FreeBSD | | | | 328 | 10.1 | | | DragonFly 4.0.1 329 | | | | | | 330 | | | | | DragonFly 4.0.2 331 | | | | | | 332 | | | | | DragonFly 4.0.3 333 | | | | | | 334 | | | | | DragonFly 4.0.4 335 | | | | | | 336 | | | | | DragonFly 4.0.5 337 | | | | | | 338 | | | | OpenBSD 5.7 | 339 | | | | | DragonFly 4.2.0 340 | FreeBSD | | | | 341 | 10.2 | | | | 342 | | OS X NetBSD 7.0 | | 343 | | 10.11 | OpenBSD 5.8 | 344 | | | | | DragonFly 4.4.1 345 | FreeBSD | | OpenBSD 5.9 | 346 | 10.3 | | | | 347 | | NetBSD 7.0.1 | | 348 | | | | DragonFly 4.6.0 349 | | | | | 350 | | | | | 351 *--FreeBSD macOS | OpenBSD 6.0 | 352 | 11.0 10.12 | | | 353 | | NetBSD 7.1 | | 354 | | | | | 355FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current 356 | | | | | 357 v v v v v 358 359Time 360---------------- 361 362Time tolerance +/- 6 months, depending on which book/article you read; if it 363was the announcement in Usenet or if it was available as tape. 364 365[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 366 and John Quarterman. The Design and Implementation of 367 the 4.4BSD Operating System. 368[APL] Apple website [http://www.apple.com/macosx/] 369[BSDI] Berkeley Software Design, Inc. 370[DFB] DragonFlyBSD Project, The. 371[DOC] README, COPYRIGHT on tape. 372[FBD] FreeBSD Project, The. 373[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 374 Volume 11, Info 4, April, 1987. 375[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 376 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 377[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 378 Changes in the Kernel in 2.9BSD. Second Berkeley Software 379 Distribution UNIX Version 2.9, July, 1983. 380[NBD] NetBSD Project, The. 381[OBD] OpenBSD Project, The. 382[QCU] Salus, Peter H. A quarter century of UNIX. 383[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 384[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 385[USE] Usenet announcement. 386[WRS] Wind River Systems, Inc. 387[dmr] Dennis Ritchie, via E-Mail 388 389Multics 1965 390UNIX Summer 1969 391 DEC PDP-7 392First Edition 1971-11-03 [QCU] 393 DEC PDP-11/20, Assembler 394Second Edition 1972-06-12 [QCU] 395 10 UNIX installations 396Third Edition 1973-02-xx [QCU] 397 Pipes, 16 installations 398Fourth Edition 1973-11-xx [QCU] 399 rewriting in C effected, 400 above 30 installations 401Fifth Edition 1974-06-xx [QCU] 402 above 50 installations 403Sixth Edition 1975-05-xx [QCU] 404 port to DEC Vax 405Seventh Edition 1979-01-xx [QCU] 406 first portable UNIX 407Eighth Edition 1985-02-xx [QCU] 408 VAX 11/750, VAX 11/780 [dmr] 409 descended from 4.1c BSD [dmr] 410 descended from 4.1 BSD [44B] 411 scooping-out and replacement of the character-device 412 and networking part by the streams mechanism 413 414Ninth Edition 1986-09-xx [QCU] 415Tenth Edition 1989-10-xx [QCU] 416 4171BSD late 1977 418 1978-03-09 [QCU] 419 PDP-11, Pascal, ex(1) 420 30 free copies of 1BSD sent out 421 35 tapes sold for 50 USD [QCU] 4222BSD mid 1978 [QCU] 1979-05-10 [TUHS] 423 75 2BSD tapes shipped 4242.79BSD 1980-04-xx [TUHS] 4252.8BSD 1981-07-xx [KSJ] 426 4272.8.1BSD 1982-01-xx [QCU] 428 set of performance improvements 4292.9BSD 1983-07-xx [KSJ] 4302.9.1BSD 1983-11-xx [TUHS] 4312.9BSD-Seismo 1985-08-xx [SMS] 4322.10BSD 1987-04-xx [KKK] 4332.10.1BSD 1989-01-xx [SMS] 4342.11BSD 1992-02-xx [SMS] 4352.11BSD rev #430 1999-12-13 [SMS] 436 43732V 1978-1[01]-xx [QCU] 4383BSD late 1979 [QCU] March 1980 [TUHS] 439 virtual memory, page replacement, 440 demand paging 4414.0BSD 1980-10-xx 4424.1BSD 1981-07-08 [DOC] 4434.1aBSD 1982-04-xx 444 alpha release, 100 sites, networking [44B] 4454.1bBSD internal release, fast filesystem [44B] 4464.1cBSD late 1982 447 beta release, IPC [44B] 4484.2BSD 1983-09-xx [QCU] 449 1983-08-03 [DOC] 4504.3BSD 1986-06-xx [QCU] 451 1986-04-05 [KB], [DOC] 4524.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4534.3BSD NET/1 1988-11-xx [QCU] 454 1989-01-01 [DOC] 4554.3BSD Reno 1990-06-29 [QCU], [DOC] 4564.3BSD NET/2 1991-06-28 [QCU], [DOC] 457 458BSD/386 ALPHA 1991-12-xx [BSDI] 459 first code released to people outside BSDI 460386BSD 0.0 1992-02-xx [DOC] 461BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 462BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 463386BSD 0.1 1992-07-28 [DOC] 4644.4BSD Alpha 1992-07-07 465BSD/386 0.9.3 1992-10-xx [BSDI] 466 first external gamma; G customers 467BSD/386 0.9.4 1992-12-xx [BSDI] 468 would have been 1.0 except for request 469 for preliminary injunction 470BSD/386 1.0 1993-03-xx [BSDI] 471 injunction denied; first official release 472NetBSD 0.8 1993-04-20 [NBD] 4734.4BSD 1993-06-01 [USE] 474NetBSD 0.9 1993-08-23 [NBD] 475FreeBSD 1.0 1993-11-01 [FBD] 476FreeBSD 1.0.2 1993-11-14 [FBD] 477 supersedes 1.0 13 days after release. 478BSD/386 1.1 1994-02-xx [BSDI] 4794.4BSD Lite 1994-03-01 [USE] 480FreeBSD 1.1 1994-05-07 [FBD] 481FreeBSD 1.1.5 1994-06-30 [FBD] 482FreeBSD 1.1.5.1 1994-07-05 [FBD] 483 supersedes 1.1.5 5 days after release. 484NetBSD 1.0 1994-10-26 [NBD] 485386BSD 1.0 1994-11-12 [USE] 486FreeBSD 2.0 1994-11-23 [FBD] 487BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 488FreeBSD 2.0.5 1995-06-10 [FBD] 489BSD/OS 2.0.1 1995-06-xx [BSDI] 4904.4BSD Lite Release 2 1995-06-xx [44B] 491 the true final distribution from the CSRG 492FreeBSD 2.1.0 1995-11-19 [FBD] 493NetBSD 1.1 1995-11-26 [NBD] 494BSD/OS 2.1 1996-01-xx [BSDI] 495FreeBSD 2.1.5 1996-07-14 [FBD] 496NetBSD 1.2 1996-10-04 [NBD] 497OpenBSD 2.0 1996-10-18 [OBD] 498FreeBSD 2.1.6 1996-11-16 [FBD] 499FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 500Rhapsody 1997-xx-xx 501FreeBSD 2.1.7 1997-02-20 [FBD] 502BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 503FreeBSD 2.2.0 1997-03-16 [FBD] 504FreeBSD 2.2.1 1997-03-25 [FBD] 505FreeBSD 2.2.2 1997-05-16 [FBD] 506NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 507OpenBSD 2.1 1997-06-01 [OBD] 508FreeBSD 2.2.5 1997-10-22 [FBD] 509OpenBSD 2.2 1997-12-01 [OBD] 510NetBSD 1.3 1998-01-04 [NBD] 511FreeBSD 2.2.6 1998-03-25 [FBD] 512NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 513BSD/OS 3.1 1998-03-xx [BSDI] 514OpenBSD 2.3 1998-05-19 [OBD] 515NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 516FreeBSD 2.2.7 1998-07-22 [FBD] 517BSD/OS 4.0 1998-08-xx [BSDI] 518 2-lock MP support, ELF executables 519FreeBSD 3.0 1998-10-16 [FBD] 520 FreeBSD-3.0 is a snapshot from -current, 521 while 3.1 and 3.2 are from 3.x-stable which 522 was branched quite some time after 3.0-release 523FreeBSD 2.2.8 1998-11-29 [FBD] 524OpenBSD 2.4 1998-12-01 [OBD] 525NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 526FreeBSD 3.1 1999-02-15 [FBD] 527BSD/OS 4.0.1 1999-03-xx [BSDI] 528NetBSD 1.4 1999-05-12 [NBD] 529FreeBSD 3.2 1999-05-17 [FBD] 530OpenBSD 2.5 1999-05-19 [OBD] 531NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 532FreeBSD 3.3 1999-09-17 [FBD] 533OpenBSD 2.6 1999-12-01 [OBD] 534FreeBSD 3.4 1999-12-20 [FBD] 535BSD/OS 4.1 1999-12-xx [BSDI] 536FreeBSD 4.0 2000-03-13 [FBD] 537NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 538OpenBSD 2.7 2000-06-15 [OBD] 539FreeBSD 3.5 2000-06-24 [FBD] 540FreeBSD 4.1 2000-07-27 [FBD] 541FreeBSD 3.5.1 2000-07-28 [FBD] 542FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 543FreeBSD 4.2 2000-11-21 [FBD] 544NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 545BSD/OS 4.2 2000-11-29 [BSDI] 546OpenBSD 2.8 2000-12-01 [OBD] 547NetBSD 1.5 2000-12-06 [NBD] 548Mac OS X 10.0 2001-03-24 [APL] 549FreeBSD 4.3 2001-04-20 [FBD] 550OpenBSD 2.9 2001-06-01 [OBD] 551NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 552NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 553FreeBSD 4.4 2001-09-18 [FBD] 554Mac OS X 10.1 2001-09-29 [APL] 555OpenBSD 3.0 2001-12-01 [OBD] 556FreeBSD 4.5 2002-01-29 [FBD] 557BSD/OS 4.3 2002-03-14 [WRS] 558OpenBSD 3.1 2002-05-19 [OBD] 559FreeBSD 4.6 2002-06-15 [FBD] 560NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 561FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 562Mac OS X 10.2 2002-08-23 [APL] 563NetBSD 1.6 2002-09-14 [NBD] 564FreeBSD 4.7 2002-10-08 [FBD] 565OpenBSD 3.2 2002-11-01 [OBD] 566FreeBSD 5.0 2003-01-17 [FBD] 567 FreeBSD 5.0 is a separate branch off of 568 -current, similar to 3.0. 569FreeBSD 4.8 2003-04-03 [FBD] 570NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 571OpenBSD 3.3 2003-05-01 [OBD] 572BSD/OS 5.0 2003-05-?? [WRS] 573FreeBSD 5.1 2003-06-09 [FBD] 574Mac OS X 10.3 2003-10-24 [APL] 575FreeBSD 4.9 2003-10-28 [FBD] 576BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 577OpenBSD 3.4 2003-11-01 [OBD] 578FreeBSD 5.2 2004-01-12 [FBD] 579FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 580NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 581OpenBSD 3.5 2004-04-01 [OBD] 582FreeBSD 4.10 2004-05-27 [FBD] 583DragonFly 1.0 2004-07-12 [DFB] 584OpenBSD 3.6 2004-10-29 [OBD] 585FreeBSD 5.3 2004-11-06 [FBD] 586NetBSD 2.0 2004-12-09 [NBD] 587FreeBSD 4.11 2005-01-25 [FBD] 588DragonFly 1.2.0 2005-04-08 [DFB] 589NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 590Mac OS X 10.4 2005-04-29 [APL] 591FreeBSD 5.4 2005-05-09 [FBD] 592OpenBSD 3.7 2005-05-19 [OBD] 593NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 594OpenBSD 3.8 2005-11-01 [OBD] 595FreeBSD 6.0 2005-11-01 [FBD] 596NetBSD 2.1 2005-11-02 [NBD] 597NetBSD 3.0 2005-12-23 [NBD] 598DragonFly 1.4.0 2006-01-08 [DFB] 599FreeBSD 2.2.9 2006-04-01 [FBD] 600OpenBSD 3.9 2006-05-01 [OBD] 601FreeBSD 6.1 2006-05-08 [FBD] 602FreeBSD 5.5 2006-05-25 [FBD] 603NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 604DragonFly 1.6.0 2006-07-24 [DFB] 605OpenBSD 4.0 2006-11-01 [OBD] 606NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 607NetBSD 3.1 2006-11-04 [NBD] 608FreeBSD 6.2 2007-01-15 [FBD] 609DragonFly 1.8.0 2007-01-30 [DFB] 610OpenBSD 4.1 2007-05-01 [OBD] 611DragonFly 1.10.0 2007-08-06 [DFB] 612Mac OS X 10.5 2007-10-26 [APL] 613OpenBSD 4.2 2007-11-01 [OBD] 614NetBSD 4.0 2007-12-19 [NBD] 615FreeBSD 6.3 2008-01-18 [FBD] 616DragonFly 1.12.0 2008-02-26 [DFB] 617FreeBSD 7.0 2008-02-27 [FBD] 618OpenBSD 4.3 2008-05-01 [OBD] 619DragonFly 2.0.0 2008-07-21 [DFB] 620OpenBSD 4.4 2008-11-01 [OBD] 621FreeBSD 6.4 2008-11-28 [FBD] 622FreeBSD 7.1 2009-01-04 [FBD] 623DragonFly 2.2.0 2009-02-17 [DFB] 624NetBSD 5.0 2009-04-29 [NBD] 625OpenBSD 4.5 2009-05-01 [OBD] 626FreeBSD 7.2 2009-05-04 [FBD] 627Mac OS X 10.6 2009-06-08 [APL] 628NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 629DragonFly 2.4.0 2009-09-16 [DFB] 630OpenBSD 4.6 2009-10-18 [OBD] 631FreeBSD 8.0 2009-11-26 [FBD] 632NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 633FreeBSD 7.3 2010-03-23 [FBD] 634DragonFly 2.6.0 2010-03-28 [DFB] 635OpenBSD 4.7 2010-05-19 [OBD] 636FreeBSD 8.1 2010-07-24 [FBD] 637DragonFly 2.8.2 2010-10-30 [DFB] 638OpenBSD 4.8 2010-11-01 [OBD] 639NetBSD 5.1 2010-11-19 [NBD] 640FreeBSD 7.4 2011-02-24 [FBD] 641FreeBSD 8.2 2011-02-24 [FBD] 642DragonFly 2.10.1 2011-04-26 [DFB] 643OpenBSD 4.9 2011-05-01 [OBD] 644Mac OS X 10.7 2011-07-20 [APL] 645OpenBSD 5.0 2011-11-01 [OBD] 646FreeBSD 9.0 2012-01-12 [FBD] 647NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 648DragonFly 3.0.1 2012-02-21 [DFB] 649FreeBSD 8.3 2012-04-18 [FBD] 650OpenBSD 5.1 2012-05-01 [OBD] 651Mac OS X 10.8 2012-07-25 [APL] 652NetBSD 6.0 2012-10-17 [NBD] 653OpenBSD 5.2 2012-11-01 [OBD] 654DragonFly 3.2.1 2012-11-02 [DFB] 655NetBSD 5.2 2012-12-03 [NBD] 656NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 657FreeBSD 9.1 2012-12-30 [FBD] 658DragonFly 3.4.1 2013-04-29 [DFB] 659OpenBSD 5.3 2013-05-01 [OBD] 660NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 661NetBSD 6.1 2013-05-18 [NBD] 662FreeBSD 8.4 2013-06-07 [FBD] 663NetBSD 6.1.1 2013-08-22 [NBD] 664NetBSD 5.1.3 2013-09-29 [NBD] 665NetBSD 5.2.1 2013-09-29 [NBD] 666FreeBSD 9.2 2013-09-30 [FBD] 667NetBSD 6.0.3 2013-09-30 [NBD] 668NetBSD 6.1.2 2013-09-30 [NBD] 669Mac OS X 10.9 2013-10-22 [APL] 670OpenBSD 5.4 2013-11-01 [OBD] 671DragonFly 3.6.0 2013-11-25 [DFB] 672FreeBSD 10.0 2014-01-20 [FBD] 673NetBSD 5.1.4 2014-01-25 [NBD] 674NetBSD 5.2.2 2014-01-25 [NBD] 675NetBSD 6.0.4 2014-01-25 [NBD] 676NetBSD 6.1.3 2014-01-25 [NBD] 677DragonFly 3.6.1 2014-02-22 [DFB] 678DragonFly 3.6.2 2014-04-10 [DFB] 679NetBSD 6.0.5 2014-04-12 [NDB] 680NetBSD 6.1.4 2014-04-12 [NDB] 681OpenBSD 5.5 2014-05-01 [OBD] 682DragonFly 3.8.0 2014-06-04 [DFB] 683DragonFly 3.8.1 2014-06-16 [DFB] 684DragonFly 3.6.3 2014-06-17 [DFB] 685FreeBSD 9.3 2014-07-05 [FBD] 686DragonFly 3.8.2 2014-08-08 [DFB] 687NetBSD 6.1.5 2014-09-22 [NBD] 688Mac OS X 10.10 2014-10-16 [APL] 689OpenBSD 5.6 2014-11-01 [OBD] 690FreeBSD 10.1 2014-11-14 [FBD] 691DragonFly 4.0.1 2014-11-25 [DFB] 692DragonFly 4.0.2 2015-01-07 [DFB] 693DragonFly 4.0.3 2015-01-21 [DFB] 694DragonFly 4.0.4 2015-03-09 [DFB] 695DragonFly 4.0.5 2015-03-23 [DFB] 696OpenBSD 5.7 2015-05-01 [OBD] 697DragonFly 4.2.0 2015-06-29 [DFB] 698FreeBSD 10.2 2015-08-13 [FBD] 699NetBSD 7.0 2015-09-25 [NBD] 700OS X 10.11 2015-09-30 [APL] 701OpenBSD 5.8 2015-10-18 [OBD] 702DragonFly 4.4.1 2015-12-07 [DFB] 703OpenBSD 5.9 2016-03-29 [OBD] 704FreeBSD 10.3 2016-04-04 [FBD] 705NetBSD 7.0.1 2016-05-22 [NBD] 706DragonFly 4.6.0 2016-08-02 [DFB] 707OpenBSD 6.0 2016-09-01 [OBD] 708FreeBSD 11.0 2016-10-10 [FBD] 709NetBSD 7.1 2017-03-11 [NBD] 710 711Bibliography 712------------------------ 713 714Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 715Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 716System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 717 718Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 719Company, Inc., 1994. ISBN 0-201-54777-5 720 721McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 722Quarterman. The Design and Implementation of the 4.4BSD Operating 723System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 724 725McKusick, Marshall Kirk, George Neville-Neil. The Design and 726Implementation of the FreeBSD Operating System. 727Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 728 729McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 730Design and Implementation of the FreeBSD Operating System, 2nd Edition. 731Pearson Education, Inc., 2014. ISBN 0-321-96897-2 732 733Doug McIlroy. Research Unix Reader. 734 735Michael G. Brown. The Role of BSD in the Development of Unix. 736Presented to the Tasmanian Unix Special Interest Group of the 737Australian Computer Society, Hobart, August 1993. 738 739Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 740URL: http://www.byte.com/art/9410/sec8/art3.htm 741 742Andreas Klemm, Lars Köller. If you're going to San Francisco ... 743Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 744 745BSD Release Announcements collection. 746URL: http://www.FreeBSD.org/releases/ 747 748BSD Hypertext Man Pages 749URL: http://www.FreeBSD.org/cgi/man.cgi 750 751UNIX history graphing project 752URL: http://minnie.tuhs.org/Unix_History/index.html 753 754UNIX history 755URL: http://www.levenez.com/unix/ 756 757James Howard: The BSD Family Tree 758URL: http://ezine.daemonnews.org/200104/bsd_family.html 759("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 760 761 762Acknowledgments 763--------------- 764 765Josh Gilliam for suggestions, bug fixes, and finding very old 766original BSD announcements from Usenet or tapes. 767 768Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 769 770-- 771Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 772URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 773 774$FreeBSD: head/share/misc/bsd-family-tree 315407 2017-03-16 10:30:40Z maxim $ 775