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 | | | | NetBSD 7.1.2 | | 369 | | | | | | | 370 | | | | v | | 371 | v | | | | 372 | | | | | 373FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current 374 | | | | | 375 v v v v v 376 377Time 378---------------- 379 380Time tolerance +/- 6 months, depending on which book/article you read; if it 381was the announcement in Usenet or if it was available as tape. 382 383[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 384 and John Quarterman. The Design and Implementation of 385 the 4.4BSD Operating System. 386[APL] Apple website [https://www.apple.com/macosx/] 387[BSDI] Berkeley Software Design, Inc. 388[DFB] DragonFlyBSD Project, The. 389[DOC] README, COPYRIGHT on tape. 390[FBD] FreeBSD Project, The. 391[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 392 Volume 11, Info 4, April, 1987. 393[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 394 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 395[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 396 Changes in the Kernel in 2.9BSD. Second Berkeley Software 397 Distribution UNIX Version 2.9, July, 1983. 398[NBD] NetBSD Project, The. 399[OBD] OpenBSD Project, The. 400[QCU] Salus, Peter H. A quarter century of UNIX. 401[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 402[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 403[USE] Usenet announcement. 404[WRS] Wind River Systems, Inc. 405[dmr] Dennis Ritchie, via E-Mail 406 407Multics 1965 408UNIX Summer 1969 409 DEC PDP-7 410First Edition 1971-11-03 [QCU] 411 DEC PDP-11/20, Assembler 412Second Edition 1972-06-12 [QCU] 413 10 UNIX installations 414Third Edition 1973-02-xx [QCU] 415 Pipes, 16 installations 416Fourth Edition 1973-11-xx [QCU] 417 rewriting in C effected, 418 above 30 installations 419Fifth Edition 1974-06-xx [QCU] 420 above 50 installations 421Sixth Edition 1975-05-xx [QCU] 422 port to DEC Vax 423Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 424 first portable UNIX 425Eighth Edition 1985-02-xx [QCU] 426 VAX 11/750, VAX 11/780 [dmr] 427 descended from 4.1c BSD [dmr] 428 descended from 4.1 BSD [44B] 429 scooping-out and replacement of the character-device 430 and networking part by the streams mechanism 431 432Ninth Edition 1986-09-xx [QCU] 433Tenth Edition 1989-10-xx [QCU] 434 4351BSD late 1977 436 1978-03-09 [QCU] 437 PDP-11, Pascal, ex(1) 438 30 free copies of 1BSD sent out 439 35 tapes sold for 50 USD [QCU] 4402BSD mid 1978 [QCU] 1979-05-10 [TUHS] 441 75 2BSD tapes shipped 4422.79BSD 1980-04-xx [TUHS] 4432.8BSD 1981-07-xx [KSJ] 444 4452.8.1BSD 1982-01-xx [QCU] 446 set of performance improvements 4472.9BSD 1983-07-xx [KSJ] 4482.9.1BSD 1983-11-xx [TUHS] 4492.9BSD-Seismo 1985-08-xx [SMS] 4502.10BSD 1987-04-xx [KKK] 4512.10.1BSD 1989-01-xx [SMS] 4522.11BSD 1992-02-xx [SMS] 4532.11BSD rev #430 1999-12-13 [SMS] 454 45532V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4563BSD late 1979 [QCU] March 1980 [TUHS] 457 virtual memory, page replacement, 458 demand paging 4594.0BSD 1980-10-xx 4604.1BSD 1981-07-08 [DOC] 4614.1aBSD 1982-04-xx 462 alpha release, 100 sites, networking [44B] 4634.1bBSD internal release, fast filesystem [44B] 4644.1cBSD late 1982 465 beta release, IPC [44B] 4664.2BSD 1983-09-xx [QCU] 467 1983-08-03 [DOC] 4684.3BSD 1986-06-xx [QCU] 469 1986-04-05 [KB], [DOC] 4704.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4714.3BSD NET/1 1988-11-xx [QCU] 472 1989-01-01 [DOC] 4734.3BSD Reno 1990-06-29 [QCU], [DOC] 4744.3BSD NET/2 1991-06-28 [QCU], [DOC] 475 476BSD/386 ALPHA 1991-12-xx [BSDI] 477 first code released to people outside BSDI 478386BSD 0.0 1992-02-xx [DOC] 479BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 480BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 481386BSD 0.1 1992-07-28 [DOC] 4824.4BSD Alpha 1992-07-07 483BSD/386 0.9.3 1992-10-xx [BSDI] 484 first external gamma; G customers 485BSD/386 0.9.4 1992-12-xx [BSDI] 486 would have been 1.0 except for request 487 for preliminary injunction 488BSD/386 1.0 1993-03-xx [BSDI] 489 injunction denied; first official release 490NetBSD 0.8 1993-04-20 [NBD] 4914.4BSD 1993-06-01 [USE] 492NetBSD 0.9 1993-08-23 [NBD] 493FreeBSD 1.0 1993-11-01 [FBD] 494FreeBSD 1.0.2 1993-11-14 [FBD] 495 supersedes 1.0 13 days after release. 496BSD/386 1.1 1994-02-xx [BSDI] 4974.4BSD Lite 1994-03-01 [USE] 498FreeBSD 1.1 1994-05-07 [FBD] 499FreeBSD 1.1.5 1994-06-30 [FBD] 500FreeBSD 1.1.5.1 1994-07-05 [FBD] 501 supersedes 1.1.5 5 days after release. 502NetBSD 1.0 1994-10-26 [NBD] 503386BSD 1.0 1994-11-12 [USE] 504FreeBSD 2.0 1994-11-23 [FBD] 505BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 506FreeBSD 2.0.5 1995-06-10 [FBD] 507BSD/OS 2.0.1 1995-06-xx [BSDI] 5084.4BSD Lite Release 2 1995-06-xx [44B] 509 the true final distribution from the CSRG 510FreeBSD 2.1.0 1995-11-19 [FBD] 511NetBSD 1.1 1995-11-26 [NBD] 512BSD/OS 2.1 1996-01-xx [BSDI] 513FreeBSD 2.1.5 1996-07-14 [FBD] 514NetBSD 1.2 1996-10-04 [NBD] 515OpenBSD 2.0 1996-10-18 [OBD] 516FreeBSD 2.1.6 1996-11-16 [FBD] 517FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 518Rhapsody 1997-xx-xx 519FreeBSD 2.1.7 1997-02-20 [FBD] 520BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 521FreeBSD 2.2.0 1997-03-16 [FBD] 522FreeBSD 2.2.1 1997-03-25 [FBD] 523FreeBSD 2.2.2 1997-05-16 [FBD] 524NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 525OpenBSD 2.1 1997-06-01 [OBD] 526FreeBSD 2.2.5 1997-10-22 [FBD] 527OpenBSD 2.2 1997-12-01 [OBD] 528NetBSD 1.3 1998-01-04 [NBD] 529FreeBSD 2.2.6 1998-03-25 [FBD] 530NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 531BSD/OS 3.1 1998-03-xx [BSDI] 532OpenBSD 2.3 1998-05-19 [OBD] 533NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 534FreeBSD 2.2.7 1998-07-22 [FBD] 535BSD/OS 4.0 1998-08-xx [BSDI] 536 2-lock MP support, ELF executables 537FreeBSD 3.0 1998-10-16 [FBD] 538 FreeBSD-3.0 is a snapshot from -current, 539 while 3.1 and 3.2 are from 3.x-stable which 540 was branched quite some time after 3.0-release 541FreeBSD 2.2.8 1998-11-29 [FBD] 542OpenBSD 2.4 1998-12-01 [OBD] 543NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 544FreeBSD 3.1 1999-02-15 [FBD] 545BSD/OS 4.0.1 1999-03-xx [BSDI] 546NetBSD 1.4 1999-05-12 [NBD] 547FreeBSD 3.2 1999-05-17 [FBD] 548OpenBSD 2.5 1999-05-19 [OBD] 549NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 550FreeBSD 3.3 1999-09-17 [FBD] 551OpenBSD 2.6 1999-12-01 [OBD] 552FreeBSD 3.4 1999-12-20 [FBD] 553BSD/OS 4.1 1999-12-xx [BSDI] 554FreeBSD 4.0 2000-03-13 [FBD] 555NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 556OpenBSD 2.7 2000-06-15 [OBD] 557FreeBSD 3.5 2000-06-24 [FBD] 558FreeBSD 4.1 2000-07-27 [FBD] 559FreeBSD 3.5.1 2000-07-28 [FBD] 560FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 561FreeBSD 4.2 2000-11-21 [FBD] 562NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 563BSD/OS 4.2 2000-11-29 [BSDI] 564OpenBSD 2.8 2000-12-01 [OBD] 565NetBSD 1.5 2000-12-06 [NBD] 566Mac OS X 10.0 2001-03-24 [APL] 567FreeBSD 4.3 2001-04-20 [FBD] 568OpenBSD 2.9 2001-06-01 [OBD] 569NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 570NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 571FreeBSD 4.4 2001-09-18 [FBD] 572Mac OS X 10.1 2001-09-29 [APL] 573OpenBSD 3.0 2001-12-01 [OBD] 574FreeBSD 4.5 2002-01-29 [FBD] 575BSD/OS 4.3 2002-03-14 [WRS] 576OpenBSD 3.1 2002-05-19 [OBD] 577FreeBSD 4.6 2002-06-15 [FBD] 578NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 579FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 580Mac OS X 10.2 2002-08-23 [APL] 581NetBSD 1.6 2002-09-14 [NBD] 582FreeBSD 4.7 2002-10-08 [FBD] 583OpenBSD 3.2 2002-11-01 [OBD] 584FreeBSD 5.0 2003-01-17 [FBD] 585 FreeBSD 5.0 is a separate branch off of 586 -current, similar to 3.0. 587FreeBSD 4.8 2003-04-03 [FBD] 588NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 589OpenBSD 3.3 2003-05-01 [OBD] 590BSD/OS 5.0 2003-05-?? [WRS] 591FreeBSD 5.1 2003-06-09 [FBD] 592Mac OS X 10.3 2003-10-24 [APL] 593FreeBSD 4.9 2003-10-28 [FBD] 594BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 595OpenBSD 3.4 2003-11-01 [OBD] 596FreeBSD 5.2 2004-01-12 [FBD] 597FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 598NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 599OpenBSD 3.5 2004-04-01 [OBD] 600FreeBSD 4.10 2004-05-27 [FBD] 601DragonFly 1.0 2004-07-12 [DFB] 602OpenBSD 3.6 2004-10-29 [OBD] 603FreeBSD 5.3 2004-11-06 [FBD] 604NetBSD 2.0 2004-12-09 [NBD] 605FreeBSD 4.11 2005-01-25 [FBD] 606DragonFly 1.2.0 2005-04-08 [DFB] 607NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 608Mac OS X 10.4 2005-04-29 [APL] 609FreeBSD 5.4 2005-05-09 [FBD] 610OpenBSD 3.7 2005-05-19 [OBD] 611NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 612OpenBSD 3.8 2005-11-01 [OBD] 613FreeBSD 6.0 2005-11-01 [FBD] 614NetBSD 2.1 2005-11-02 [NBD] 615NetBSD 3.0 2005-12-23 [NBD] 616DragonFly 1.4.0 2006-01-08 [DFB] 617FreeBSD 2.2.9 2006-04-01 [FBD] 618OpenBSD 3.9 2006-05-01 [OBD] 619FreeBSD 6.1 2006-05-08 [FBD] 620FreeBSD 5.5 2006-05-25 [FBD] 621NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 622DragonFly 1.6.0 2006-07-24 [DFB] 623OpenBSD 4.0 2006-11-01 [OBD] 624NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 625NetBSD 3.1 2006-11-04 [NBD] 626FreeBSD 6.2 2007-01-15 [FBD] 627DragonFly 1.8.0 2007-01-30 [DFB] 628OpenBSD 4.1 2007-05-01 [OBD] 629DragonFly 1.10.0 2007-08-06 [DFB] 630Mac OS X 10.5 2007-10-26 [APL] 631OpenBSD 4.2 2007-11-01 [OBD] 632NetBSD 4.0 2007-12-19 [NBD] 633FreeBSD 6.3 2008-01-18 [FBD] 634DragonFly 1.12.0 2008-02-26 [DFB] 635FreeBSD 7.0 2008-02-27 [FBD] 636OpenBSD 4.3 2008-05-01 [OBD] 637DragonFly 2.0.0 2008-07-21 [DFB] 638OpenBSD 4.4 2008-11-01 [OBD] 639FreeBSD 6.4 2008-11-28 [FBD] 640FreeBSD 7.1 2009-01-04 [FBD] 641DragonFly 2.2.0 2009-02-17 [DFB] 642NetBSD 5.0 2009-04-29 [NBD] 643OpenBSD 4.5 2009-05-01 [OBD] 644FreeBSD 7.2 2009-05-04 [FBD] 645Mac OS X 10.6 2009-06-08 [APL] 646NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 647DragonFly 2.4.0 2009-09-16 [DFB] 648OpenBSD 4.6 2009-10-18 [OBD] 649FreeBSD 8.0 2009-11-26 [FBD] 650NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 651FreeBSD 7.3 2010-03-23 [FBD] 652DragonFly 2.6.0 2010-03-28 [DFB] 653OpenBSD 4.7 2010-05-19 [OBD] 654FreeBSD 8.1 2010-07-24 [FBD] 655DragonFly 2.8.2 2010-10-30 [DFB] 656OpenBSD 4.8 2010-11-01 [OBD] 657NetBSD 5.1 2010-11-19 [NBD] 658FreeBSD 7.4 2011-02-24 [FBD] 659FreeBSD 8.2 2011-02-24 [FBD] 660DragonFly 2.10.1 2011-04-26 [DFB] 661OpenBSD 4.9 2011-05-01 [OBD] 662Mac OS X 10.7 2011-07-20 [APL] 663OpenBSD 5.0 2011-11-01 [OBD] 664FreeBSD 9.0 2012-01-12 [FBD] 665NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 666DragonFly 3.0.1 2012-02-21 [DFB] 667FreeBSD 8.3 2012-04-18 [FBD] 668OpenBSD 5.1 2012-05-01 [OBD] 669Mac OS X 10.8 2012-07-25 [APL] 670NetBSD 6.0 2012-10-17 [NBD] 671OpenBSD 5.2 2012-11-01 [OBD] 672DragonFly 3.2.1 2012-11-02 [DFB] 673NetBSD 5.2 2012-12-03 [NBD] 674NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 675FreeBSD 9.1 2012-12-30 [FBD] 676DragonFly 3.4.1 2013-04-29 [DFB] 677OpenBSD 5.3 2013-05-01 [OBD] 678NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 679NetBSD 6.1 2013-05-18 [NBD] 680FreeBSD 8.4 2013-06-07 [FBD] 681NetBSD 6.1.1 2013-08-22 [NBD] 682NetBSD 5.1.3 2013-09-29 [NBD] 683NetBSD 5.2.1 2013-09-29 [NBD] 684FreeBSD 9.2 2013-09-30 [FBD] 685NetBSD 6.0.3 2013-09-30 [NBD] 686NetBSD 6.1.2 2013-09-30 [NBD] 687Mac OS X 10.9 2013-10-22 [APL] 688OpenBSD 5.4 2013-11-01 [OBD] 689DragonFly 3.6.0 2013-11-25 [DFB] 690FreeBSD 10.0 2014-01-20 [FBD] 691NetBSD 5.1.4 2014-01-25 [NBD] 692NetBSD 5.2.2 2014-01-25 [NBD] 693NetBSD 6.0.4 2014-01-25 [NBD] 694NetBSD 6.1.3 2014-01-25 [NBD] 695DragonFly 3.6.1 2014-02-22 [DFB] 696DragonFly 3.6.2 2014-04-10 [DFB] 697NetBSD 6.0.5 2014-04-12 [NBD] 698NetBSD 6.1.4 2014-04-12 [NBD] 699OpenBSD 5.5 2014-05-01 [OBD] 700DragonFly 3.8.0 2014-06-04 [DFB] 701DragonFly 3.8.1 2014-06-16 [DFB] 702DragonFly 3.6.3 2014-06-17 [DFB] 703FreeBSD 9.3 2014-07-05 [FBD] 704DragonFly 3.8.2 2014-08-08 [DFB] 705NetBSD 6.0.6 2014-09-22 [NBD] 706NetBSD 6.1.5 2014-09-22 [NBD] 707Mac OS X 10.10 2014-10-16 [APL] 708OpenBSD 5.6 2014-11-01 [OBD] 709FreeBSD 10.1 2014-11-14 [FBD] 710DragonFly 4.0.1 2014-11-25 [DFB] 711DragonFly 4.0.2 2015-01-07 [DFB] 712DragonFly 4.0.3 2015-01-21 [DFB] 713DragonFly 4.0.4 2015-03-09 [DFB] 714DragonFly 4.0.5 2015-03-23 [DFB] 715OpenBSD 5.7 2015-05-01 [OBD] 716DragonFly 4.2.0 2015-06-29 [DFB] 717FreeBSD 10.2 2015-08-13 [FBD] 718NetBSD 7.0 2015-09-25 [NBD] 719OS X 10.11 2015-09-30 [APL] 720OpenBSD 5.8 2015-10-18 [OBD] 721DragonFly 4.4.1 2015-12-07 [DFB] 722OpenBSD 5.9 2016-03-29 [OBD] 723FreeBSD 10.3 2016-04-04 [FBD] 724NetBSD 7.0.1 2016-05-22 [NBD] 725DragonFly 4.6.0 2016-08-02 [DFB] 726OpenBSD 6.0 2016-09-01 [OBD] 727macOS 10.12 2016-09-20 [APL] 728FreeBSD 11.0 2016-10-10 [FBD] 729NetBSD 7.0.2 2016-10-21 [NBD] 730NetBSD 7.1 2017-03-11 [NBD] 731DragonFly 4.8.0 2017-03-27 [DFB] 732OpenBSD 6.1 2017-04-11 [OBD] 733FreeBSD 11.1 2017-07-26 [FBD] 734macOS 10.13 2017-09-25 [APL] 735FreeBSD 10.4 2017-10-03 [FBD] 736OpenBSD 6.2 2017-10-09 [OBD] 737DragonFly 5.0.0 2017-10-16 [DFB] 738DragonFly 5.0.1 2017-11-06 [DFB] 739DragonFly 5.0.2 2017-12-04 [DFB] 740NetBSD 7.1.1 2017-12-22 [NBD] 741NetBSD 7.1.2 2018-03-15 [NBD] 742 743Bibliography 744------------------------ 745 746Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 747Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 748System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 749 750Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 751Company, Inc., 1994. ISBN 0-201-54777-5 752 753McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 754Quarterman. The Design and Implementation of the 4.4BSD Operating 755System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 756 757McKusick, Marshall Kirk, George Neville-Neil. The Design and 758Implementation of the FreeBSD Operating System. 759Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 760 761McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 762Design and Implementation of the FreeBSD Operating System, 2nd Edition. 763Pearson Education, Inc., 2014. ISBN 0-321-96897-2 764 765Doug McIlroy. Research Unix Reader. 766 767Michael G. Brown. The Role of BSD in the Development of Unix. 768Presented to the Tasmanian Unix Special Interest Group of the 769Australian Computer Society, Hobart, August 1993. 770 771Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 772URL: http://www.byte.com/art/9410/sec8/art3.htm 773 774Andreas Klemm, Lars Köller. If you're going to San Francisco ... 775Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 776 777BSD Release Announcements collection. 778URL: https://www.FreeBSD.org/releases/ 779 780BSD Hypertext Man Pages 781URL: https://www.FreeBSD.org/cgi/man.cgi 782 783UNIX history graphing project 784URL: http://minnie.tuhs.org/Unix_History/index.html 785 786UNIX history 787URL: http://www.levenez.com/unix/ 788 789James Howard: The BSD Family Tree 790URL: http://ezine.daemonnews.org/200104/bsd_family.html 791("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 792 793 794Acknowledgments 795--------------- 796 797Josh Gilliam for suggestions, bug fixes, and finding very old 798original BSD announcements from Usenet or tapes. 799 800Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 801 802-- 803Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 804URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 805 806$FreeBSD$ 807