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 | | 295 | | | | | | 6.0.6 | | 296 | | | | | | | | 297 | | | | | |`-NetBSD 6.1 | | 298 | | FreeBSD | | | | | 299 | | 8.4 | | NetBSD 6.1.1 | | 300 | | | | | | | 301 | FreeBSD | | NetBSD 6.1.2 | | 302 | 9.2 Mac OS X | | | | 303 | | 10.9 | | OpenBSD 5.4 | 304 | `-----. | | | | DragonFly 3.6.0 305 | \ | | | | | 306 *--FreeBSD | | | NetBSD 6.1.3 | | 307 | 10.0 | | | | | | 308 | | | | | | | DragonFly 3.6.1 309 | | | | | | | | 310 | | | | | | | | 311 | | | | | | | DragonFly 3.6.2 312 | | | | | NetBSD 6.1.4 | | 313 | | | | | | | | 314 | | | | | | OpenBSD 5.5 | 315 | | | | | | | | 316 | | | | | | | DragonFly 3.8.0 317 | | | | | | | | 318 | | | | | | | | 319 | | | | | | | DragonFly 3.8.1 320 | | | | | | | | 321 | | | | | | | | 322 | | | | | | | DragonFly 3.6.3 323 | | | | | | | | 324 | | FreeBSD | | | | | 325 | | 9.3 | | | | | 326 | | | | NetBSD 6.1.5 | DragonFly 3.8.2 327 | | Mac OS X | | | 328 | | 10.10 | | | 329 | | | | OpenBSD 5.6 | 330 | FreeBSD | | | | 331 | 10.1 | | | DragonFly 4.0.1 332 | | | | | | 333 | | | | | DragonFly 4.0.2 334 | | | | | | 335 | | | | | DragonFly 4.0.3 336 | | | | | | 337 | | | | | DragonFly 4.0.4 338 | | | | | | 339 | | | | | DragonFly 4.0.5 340 | | | | | | 341 | | | | OpenBSD 5.7 | 342 | | | | | DragonFly 4.2.0 343 | FreeBSD | | | | 344 | 10.2 | | | | 345 | | macOS NetBSD 7.0 | | 346 | | 10.11 | | | OpenBSD 5.8 | 347 | | | | | `--. | DragonFly 4.4.1 348 | FreeBSD | | | | OpenBSD 5.9 | 349 | 10.3 | | | | | | 350 | | | | | NetBSD 7.0.1 | | 351 | `------. | | | | | DragonFly 4.6.0 352 | | | | | | | | 353 | | | | | | | | 354 *--FreeBSD | macOS | | | OpenBSD 6.0 | 355 | 11.0 | 10.12 | | NetBSD 7.0.2 | | 356 | | | | | | | | 357 | | | | | *- NetBSD 7.1 | | 358 | | | | | | | | 359 | | | | | | | | 360 | | | macOS | | | DragonFly 4.8.0 361 | | | 10.13 | | OpenBSD 6.1 | 362 | FreeBSD | | | | | DragonFly 5.0.0 363 | 11.1 FreeBSD | | | | | 364 | | 10.4 | | | OpenBSD 6.2 DragonFly 5.0.1 365 | | | | | | | 366 | | | | NetBSD 7.1.1 | DragonFly 5.0.2 367 | | | | | | | 368 | | | | v | | 369 | v | | | | 370 | | | | | 371FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current 372 | | | | | 373 v v v v v 374 375Time 376---------------- 377 378Time tolerance +/- 6 months, depending on which book/article you read; if it 379was the announcement in Usenet or if it was available as tape. 380 381[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 382 and John Quarterman. The Design and Implementation of 383 the 4.4BSD Operating System. 384[APL] Apple website [https://www.apple.com/macosx/] 385[BSDI] Berkeley Software Design, Inc. 386[DFB] DragonFlyBSD Project, The. 387[DOC] README, COPYRIGHT on tape. 388[FBD] FreeBSD Project, The. 389[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 390 Volume 11, Info 4, April, 1987. 391[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 392 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 393[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 394 Changes in the Kernel in 2.9BSD. Second Berkeley Software 395 Distribution UNIX Version 2.9, July, 1983. 396[NBD] NetBSD Project, The. 397[OBD] OpenBSD Project, The. 398[QCU] Salus, Peter H. A quarter century of UNIX. 399[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 400[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 401[USE] Usenet announcement. 402[WRS] Wind River Systems, Inc. 403[dmr] Dennis Ritchie, via E-Mail 404 405Multics 1965 406UNIX Summer 1969 407 DEC PDP-7 408First Edition 1971-11-03 [QCU] 409 DEC PDP-11/20, Assembler 410Second Edition 1972-06-12 [QCU] 411 10 UNIX installations 412Third Edition 1973-02-xx [QCU] 413 Pipes, 16 installations 414Fourth Edition 1973-11-xx [QCU] 415 rewriting in C effected, 416 above 30 installations 417Fifth Edition 1974-06-xx [QCU] 418 above 50 installations 419Sixth Edition 1975-05-xx [QCU] 420 port to DEC Vax 421Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 422 first portable UNIX 423Eighth Edition 1985-02-xx [QCU] 424 VAX 11/750, VAX 11/780 [dmr] 425 descended from 4.1c BSD [dmr] 426 descended from 4.1 BSD [44B] 427 scooping-out and replacement of the character-device 428 and networking part by the streams mechanism 429 430Ninth Edition 1986-09-xx [QCU] 431Tenth Edition 1989-10-xx [QCU] 432 4331BSD late 1977 434 1978-03-09 [QCU] 435 PDP-11, Pascal, ex(1) 436 30 free copies of 1BSD sent out 437 35 tapes sold for 50 USD [QCU] 4382BSD mid 1978 [QCU] 1979-05-10 [TUHS] 439 75 2BSD tapes shipped 4402.79BSD 1980-04-xx [TUHS] 4412.8BSD 1981-07-xx [KSJ] 442 4432.8.1BSD 1982-01-xx [QCU] 444 set of performance improvements 4452.9BSD 1983-07-xx [KSJ] 4462.9.1BSD 1983-11-xx [TUHS] 4472.9BSD-Seismo 1985-08-xx [SMS] 4482.10BSD 1987-04-xx [KKK] 4492.10.1BSD 1989-01-xx [SMS] 4502.11BSD 1992-02-xx [SMS] 4512.11BSD rev #430 1999-12-13 [SMS] 452 45332V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4543BSD late 1979 [QCU] March 1980 [TUHS] 455 virtual memory, page replacement, 456 demand paging 4574.0BSD 1980-10-xx 4584.1BSD 1981-07-08 [DOC] 4594.1aBSD 1982-04-xx 460 alpha release, 100 sites, networking [44B] 4614.1bBSD internal release, fast filesystem [44B] 4624.1cBSD late 1982 463 beta release, IPC [44B] 4644.2BSD 1983-09-xx [QCU] 465 1983-08-03 [DOC] 4664.3BSD 1986-06-xx [QCU] 467 1986-04-05 [KB], [DOC] 4684.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4694.3BSD NET/1 1988-11-xx [QCU] 470 1989-01-01 [DOC] 4714.3BSD Reno 1990-06-29 [QCU], [DOC] 4724.3BSD NET/2 1991-06-28 [QCU], [DOC] 473 474BSD/386 ALPHA 1991-12-xx [BSDI] 475 first code released to people outside BSDI 476386BSD 0.0 1992-02-xx [DOC] 477BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 478BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 479386BSD 0.1 1992-07-28 [DOC] 4804.4BSD Alpha 1992-07-07 481BSD/386 0.9.3 1992-10-xx [BSDI] 482 first external gamma; G customers 483BSD/386 0.9.4 1992-12-xx [BSDI] 484 would have been 1.0 except for request 485 for preliminary injunction 486BSD/386 1.0 1993-03-xx [BSDI] 487 injunction denied; first official release 488NetBSD 0.8 1993-04-20 [NBD] 4894.4BSD 1993-06-01 [USE] 490NetBSD 0.9 1993-08-23 [NBD] 491FreeBSD 1.0 1993-11-01 [FBD] 492FreeBSD 1.0.2 1993-11-14 [FBD] 493 supersedes 1.0 13 days after release. 494BSD/386 1.1 1994-02-xx [BSDI] 4954.4BSD Lite 1994-03-01 [USE] 496FreeBSD 1.1 1994-05-07 [FBD] 497FreeBSD 1.1.5 1994-06-30 [FBD] 498FreeBSD 1.1.5.1 1994-07-05 [FBD] 499 supersedes 1.1.5 5 days after release. 500NetBSD 1.0 1994-10-26 [NBD] 501386BSD 1.0 1994-11-12 [USE] 502FreeBSD 2.0 1994-11-23 [FBD] 503BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 504FreeBSD 2.0.5 1995-06-10 [FBD] 505BSD/OS 2.0.1 1995-06-xx [BSDI] 5064.4BSD Lite Release 2 1995-06-xx [44B] 507 the true final distribution from the CSRG 508FreeBSD 2.1.0 1995-11-19 [FBD] 509NetBSD 1.1 1995-11-26 [NBD] 510BSD/OS 2.1 1996-01-xx [BSDI] 511FreeBSD 2.1.5 1996-07-14 [FBD] 512NetBSD 1.2 1996-10-04 [NBD] 513OpenBSD 2.0 1996-10-18 [OBD] 514FreeBSD 2.1.6 1996-11-16 [FBD] 515FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 516Rhapsody 1997-xx-xx 517FreeBSD 2.1.7 1997-02-20 [FBD] 518BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 519FreeBSD 2.2.0 1997-03-16 [FBD] 520FreeBSD 2.2.1 1997-03-25 [FBD] 521FreeBSD 2.2.2 1997-05-16 [FBD] 522NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 523OpenBSD 2.1 1997-06-01 [OBD] 524FreeBSD 2.2.5 1997-10-22 [FBD] 525OpenBSD 2.2 1997-12-01 [OBD] 526NetBSD 1.3 1998-01-04 [NBD] 527FreeBSD 2.2.6 1998-03-25 [FBD] 528NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 529BSD/OS 3.1 1998-03-xx [BSDI] 530OpenBSD 2.3 1998-05-19 [OBD] 531NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 532FreeBSD 2.2.7 1998-07-22 [FBD] 533BSD/OS 4.0 1998-08-xx [BSDI] 534 2-lock MP support, ELF executables 535FreeBSD 3.0 1998-10-16 [FBD] 536 FreeBSD-3.0 is a snapshot from -current, 537 while 3.1 and 3.2 are from 3.x-stable which 538 was branched quite some time after 3.0-release 539FreeBSD 2.2.8 1998-11-29 [FBD] 540OpenBSD 2.4 1998-12-01 [OBD] 541NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 542FreeBSD 3.1 1999-02-15 [FBD] 543BSD/OS 4.0.1 1999-03-xx [BSDI] 544NetBSD 1.4 1999-05-12 [NBD] 545FreeBSD 3.2 1999-05-17 [FBD] 546OpenBSD 2.5 1999-05-19 [OBD] 547NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 548FreeBSD 3.3 1999-09-17 [FBD] 549OpenBSD 2.6 1999-12-01 [OBD] 550FreeBSD 3.4 1999-12-20 [FBD] 551BSD/OS 4.1 1999-12-xx [BSDI] 552FreeBSD 4.0 2000-03-13 [FBD] 553NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 554OpenBSD 2.7 2000-06-15 [OBD] 555FreeBSD 3.5 2000-06-24 [FBD] 556FreeBSD 4.1 2000-07-27 [FBD] 557FreeBSD 3.5.1 2000-07-28 [FBD] 558FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 559FreeBSD 4.2 2000-11-21 [FBD] 560NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 561BSD/OS 4.2 2000-11-29 [BSDI] 562OpenBSD 2.8 2000-12-01 [OBD] 563NetBSD 1.5 2000-12-06 [NBD] 564Mac OS X 10.0 2001-03-24 [APL] 565FreeBSD 4.3 2001-04-20 [FBD] 566OpenBSD 2.9 2001-06-01 [OBD] 567NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 568NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 569FreeBSD 4.4 2001-09-18 [FBD] 570Mac OS X 10.1 2001-09-29 [APL] 571OpenBSD 3.0 2001-12-01 [OBD] 572FreeBSD 4.5 2002-01-29 [FBD] 573BSD/OS 4.3 2002-03-14 [WRS] 574OpenBSD 3.1 2002-05-19 [OBD] 575FreeBSD 4.6 2002-06-15 [FBD] 576NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 577FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 578Mac OS X 10.2 2002-08-23 [APL] 579NetBSD 1.6 2002-09-14 [NBD] 580FreeBSD 4.7 2002-10-08 [FBD] 581OpenBSD 3.2 2002-11-01 [OBD] 582FreeBSD 5.0 2003-01-17 [FBD] 583 FreeBSD 5.0 is a separate branch off of 584 -current, similar to 3.0. 585FreeBSD 4.8 2003-04-03 [FBD] 586NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 587OpenBSD 3.3 2003-05-01 [OBD] 588BSD/OS 5.0 2003-05-?? [WRS] 589FreeBSD 5.1 2003-06-09 [FBD] 590Mac OS X 10.3 2003-10-24 [APL] 591FreeBSD 4.9 2003-10-28 [FBD] 592BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 593OpenBSD 3.4 2003-11-01 [OBD] 594FreeBSD 5.2 2004-01-12 [FBD] 595FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 596NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 597OpenBSD 3.5 2004-04-01 [OBD] 598FreeBSD 4.10 2004-05-27 [FBD] 599DragonFly 1.0 2004-07-12 [DFB] 600OpenBSD 3.6 2004-10-29 [OBD] 601FreeBSD 5.3 2004-11-06 [FBD] 602NetBSD 2.0 2004-12-09 [NBD] 603FreeBSD 4.11 2005-01-25 [FBD] 604DragonFly 1.2.0 2005-04-08 [DFB] 605NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 606Mac OS X 10.4 2005-04-29 [APL] 607FreeBSD 5.4 2005-05-09 [FBD] 608OpenBSD 3.7 2005-05-19 [OBD] 609NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 610OpenBSD 3.8 2005-11-01 [OBD] 611FreeBSD 6.0 2005-11-01 [FBD] 612NetBSD 2.1 2005-11-02 [NBD] 613NetBSD 3.0 2005-12-23 [NBD] 614DragonFly 1.4.0 2006-01-08 [DFB] 615FreeBSD 2.2.9 2006-04-01 [FBD] 616OpenBSD 3.9 2006-05-01 [OBD] 617FreeBSD 6.1 2006-05-08 [FBD] 618FreeBSD 5.5 2006-05-25 [FBD] 619NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 620DragonFly 1.6.0 2006-07-24 [DFB] 621OpenBSD 4.0 2006-11-01 [OBD] 622NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 623NetBSD 3.1 2006-11-04 [NBD] 624FreeBSD 6.2 2007-01-15 [FBD] 625DragonFly 1.8.0 2007-01-30 [DFB] 626OpenBSD 4.1 2007-05-01 [OBD] 627DragonFly 1.10.0 2007-08-06 [DFB] 628Mac OS X 10.5 2007-10-26 [APL] 629OpenBSD 4.2 2007-11-01 [OBD] 630NetBSD 4.0 2007-12-19 [NBD] 631FreeBSD 6.3 2008-01-18 [FBD] 632DragonFly 1.12.0 2008-02-26 [DFB] 633FreeBSD 7.0 2008-02-27 [FBD] 634OpenBSD 4.3 2008-05-01 [OBD] 635DragonFly 2.0.0 2008-07-21 [DFB] 636OpenBSD 4.4 2008-11-01 [OBD] 637FreeBSD 6.4 2008-11-28 [FBD] 638FreeBSD 7.1 2009-01-04 [FBD] 639DragonFly 2.2.0 2009-02-17 [DFB] 640NetBSD 5.0 2009-04-29 [NBD] 641OpenBSD 4.5 2009-05-01 [OBD] 642FreeBSD 7.2 2009-05-04 [FBD] 643Mac OS X 10.6 2009-06-08 [APL] 644NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 645DragonFly 2.4.0 2009-09-16 [DFB] 646OpenBSD 4.6 2009-10-18 [OBD] 647FreeBSD 8.0 2009-11-26 [FBD] 648NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 649FreeBSD 7.3 2010-03-23 [FBD] 650DragonFly 2.6.0 2010-03-28 [DFB] 651OpenBSD 4.7 2010-05-19 [OBD] 652FreeBSD 8.1 2010-07-24 [FBD] 653DragonFly 2.8.2 2010-10-30 [DFB] 654OpenBSD 4.8 2010-11-01 [OBD] 655NetBSD 5.1 2010-11-19 [NBD] 656FreeBSD 7.4 2011-02-24 [FBD] 657FreeBSD 8.2 2011-02-24 [FBD] 658DragonFly 2.10.1 2011-04-26 [DFB] 659OpenBSD 4.9 2011-05-01 [OBD] 660Mac OS X 10.7 2011-07-20 [APL] 661OpenBSD 5.0 2011-11-01 [OBD] 662FreeBSD 9.0 2012-01-12 [FBD] 663NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 664DragonFly 3.0.1 2012-02-21 [DFB] 665FreeBSD 8.3 2012-04-18 [FBD] 666OpenBSD 5.1 2012-05-01 [OBD] 667Mac OS X 10.8 2012-07-25 [APL] 668NetBSD 6.0 2012-10-17 [NBD] 669OpenBSD 5.2 2012-11-01 [OBD] 670DragonFly 3.2.1 2012-11-02 [DFB] 671NetBSD 5.2 2012-12-03 [NBD] 672NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 673FreeBSD 9.1 2012-12-30 [FBD] 674DragonFly 3.4.1 2013-04-29 [DFB] 675OpenBSD 5.3 2013-05-01 [OBD] 676NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 677NetBSD 6.1 2013-05-18 [NBD] 678FreeBSD 8.4 2013-06-07 [FBD] 679NetBSD 6.1.1 2013-08-22 [NBD] 680NetBSD 5.1.3 2013-09-29 [NBD] 681NetBSD 5.2.1 2013-09-29 [NBD] 682FreeBSD 9.2 2013-09-30 [FBD] 683NetBSD 6.0.3 2013-09-30 [NBD] 684NetBSD 6.1.2 2013-09-30 [NBD] 685Mac OS X 10.9 2013-10-22 [APL] 686OpenBSD 5.4 2013-11-01 [OBD] 687DragonFly 3.6.0 2013-11-25 [DFB] 688FreeBSD 10.0 2014-01-20 [FBD] 689NetBSD 5.1.4 2014-01-25 [NBD] 690NetBSD 5.2.2 2014-01-25 [NBD] 691NetBSD 6.0.4 2014-01-25 [NBD] 692NetBSD 6.1.3 2014-01-25 [NBD] 693DragonFly 3.6.1 2014-02-22 [DFB] 694DragonFly 3.6.2 2014-04-10 [DFB] 695NetBSD 6.0.5 2014-04-12 [NBD] 696NetBSD 6.1.4 2014-04-12 [NBD] 697OpenBSD 5.5 2014-05-01 [OBD] 698DragonFly 3.8.0 2014-06-04 [DFB] 699DragonFly 3.8.1 2014-06-16 [DFB] 700DragonFly 3.6.3 2014-06-17 [DFB] 701FreeBSD 9.3 2014-07-05 [FBD] 702DragonFly 3.8.2 2014-08-08 [DFB] 703NetBSD 6.0.6 2014-09-22 [NBD] 704NetBSD 6.1.5 2014-09-22 [NBD] 705Mac OS X 10.10 2014-10-16 [APL] 706OpenBSD 5.6 2014-11-01 [OBD] 707FreeBSD 10.1 2014-11-14 [FBD] 708DragonFly 4.0.1 2014-11-25 [DFB] 709DragonFly 4.0.2 2015-01-07 [DFB] 710DragonFly 4.0.3 2015-01-21 [DFB] 711DragonFly 4.0.4 2015-03-09 [DFB] 712DragonFly 4.0.5 2015-03-23 [DFB] 713OpenBSD 5.7 2015-05-01 [OBD] 714DragonFly 4.2.0 2015-06-29 [DFB] 715FreeBSD 10.2 2015-08-13 [FBD] 716NetBSD 7.0 2015-09-25 [NBD] 717OS X 10.11 2015-09-30 [APL] 718OpenBSD 5.8 2015-10-18 [OBD] 719DragonFly 4.4.1 2015-12-07 [DFB] 720OpenBSD 5.9 2016-03-29 [OBD] 721FreeBSD 10.3 2016-04-04 [FBD] 722NetBSD 7.0.1 2016-05-22 [NBD] 723DragonFly 4.6.0 2016-08-02 [DFB] 724OpenBSD 6.0 2016-09-01 [OBD] 725macOS 10.12 2016-09-20 [APL] 726FreeBSD 11.0 2016-10-10 [FBD] 727NetBSD 7.0.2 2016-10-21 [NBD] 728NetBSD 7.1 2017-03-11 [NBD] 729DragonFly 4.8.0 2017-03-27 [DFB] 730OpenBSD 6.1 2017-04-11 [OBD] 731FreeBSD 11.1 2017-07-26 [FBD] 732macOS 10.13 2017-09-25 [APL] 733FreeBSD 10.4 2017-10-03 [FBD] 734OpenBSD 6.2 2017-10-09 [OBD] 735DragonFly 5.0.0 2017-10-16 [DFB] 736DragonFly 5.0.1 2017-11-06 [DFB] 737DragonFly 5.0.2 2017-12-04 [DFB] 738NetBSD 7.1.1 2017-12-22 [NBD] 739 740Bibliography 741------------------------ 742 743Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 744Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 745System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 746 747Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 748Company, Inc., 1994. ISBN 0-201-54777-5 749 750McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 751Quarterman. The Design and Implementation of the 4.4BSD Operating 752System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 753 754McKusick, Marshall Kirk, George Neville-Neil. The Design and 755Implementation of the FreeBSD Operating System. 756Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 757 758McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 759Design and Implementation of the FreeBSD Operating System, 2nd Edition. 760Pearson Education, Inc., 2014. ISBN 0-321-96897-2 761 762Doug McIlroy. Research Unix Reader. 763 764Michael G. Brown. The Role of BSD in the Development of Unix. 765Presented to the Tasmanian Unix Special Interest Group of the 766Australian Computer Society, Hobart, August 1993. 767 768Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 769URL: http://www.byte.com/art/9410/sec8/art3.htm 770 771Andreas Klemm, Lars Köller. If you're going to San Francisco ... 772Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 773 774BSD Release Announcements collection. 775URL: https://www.FreeBSD.org/releases/ 776 777BSD Hypertext Man Pages 778URL: https://www.FreeBSD.org/cgi/man.cgi 779 780UNIX history graphing project 781URL: http://minnie.tuhs.org/Unix_History/index.html 782 783UNIX history 784URL: http://www.levenez.com/unix/ 785 786James Howard: The BSD Family Tree 787URL: http://ezine.daemonnews.org/200104/bsd_family.html 788("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 789 790 791Acknowledgments 792--------------- 793 794Josh Gilliam for suggestions, bug fixes, and finding very old 795original BSD announcements from Usenet or tapes. 796 797Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 798 799-- 800Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 801URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 802 803$FreeBSD: head/share/misc/bsd-family-tree 327510 2018-01-03 03:46:28Z eadler $ 804