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 | | | | | OpenBSD 6.3 | 371 | | | NetBSD | | DragonFly 5.2.0 372 | | | 8.0 | | | 373 | | | | | | DragonFly 5.2.1 374 | | | | | | | 375 | | | | | | DragonFly 5.2.2 376 | FreeBSD | | NetBSD 7.2 | | 377 | 11.2 macOS | | | | 378 | 10.14 | | OpenBSD 6.4 | 379 | | | | | DragonFly 5.4.0 380 *--FreeBSD | | v | | 381 | 12.0 | | | DragonFly 5.4.1 382 | | | | | 383FreeBSD 13 -current | NetBSD -current OpenBSD -current DragonFly -current 384 | | | | | 385 v v v v v 386 387Time 388---------------- 389 390Time tolerance +/- 6 months, depending on which book/article you read; if it 391was the announcement in Usenet or if it was available as tape. 392 393[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 394 and John Quarterman. The Design and Implementation of 395 the 4.4BSD Operating System. 396[APL] Apple website [https://www.apple.com/macosx/] 397[BSDI] Berkeley Software Design, Inc. 398[DFB] DragonFlyBSD Project, The. 399[DOC] README, COPYRIGHT on tape. 400[FBD] FreeBSD Project, The. 401[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 402 Volume 11, Info 4, April, 1987. 403[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 404 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 405[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 406 Changes in the Kernel in 2.9BSD. Second Berkeley Software 407 Distribution UNIX Version 2.9, July, 1983. 408[NBD] NetBSD Project, The. 409[OBD] OpenBSD Project, The. 410[QCU] Salus, Peter H. A quarter century of UNIX. 411[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 412[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 413[USE] Usenet announcement. 414[WRS] Wind River Systems, Inc. 415[dmr] Dennis Ritchie, via E-Mail 416 417Multics 1965 418UNIX Summer 1969 419 DEC PDP-7 420First Edition 1971-11-03 [QCU] 421 DEC PDP-11/20, Assembler 422Second Edition 1972-06-12 [QCU] 423 10 UNIX installations 424Third Edition 1973-02-xx [QCU] 425 Pipes, 16 installations 426Fourth Edition 1973-11-xx [QCU] 427 rewriting in C effected, 428 above 30 installations 429Fifth Edition 1974-06-xx [QCU] 430 above 50 installations 431Sixth Edition 1975-05-xx [QCU] 432 port to DEC Vax 433Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 434 first portable UNIX 435Eighth Edition 1985-02-xx [QCU] 436 VAX 11/750, VAX 11/780 [dmr] 437 descended from 4.1c BSD [dmr] 438 descended from 4.1 BSD [44B] 439 scooping-out and replacement of the character-device 440 and networking part by the streams mechanism 441 442Ninth Edition 1986-09-xx [QCU] 443Tenth Edition 1989-10-xx [QCU] 444 4451BSD late 1977 446 1978-03-09 [QCU] 447 PDP-11, Pascal, ex(1) 448 30 free copies of 1BSD sent out 449 35 tapes sold for 50 USD [QCU] 4502BSD mid 1978 [QCU] 1979-05-10 [TUHS] 451 75 2BSD tapes shipped 4522.79BSD 1980-04-xx [TUHS] 4532.8BSD 1981-07-xx [KSJ] 454 4552.8.1BSD 1982-01-xx [QCU] 456 set of performance improvements 4572.9BSD 1983-07-xx [KSJ] 4582.9.1BSD 1983-11-xx [TUHS] 4592.9BSD-Seismo 1985-08-xx [SMS] 4602.10BSD 1987-04-xx [KKK] 4612.10.1BSD 1989-01-xx [SMS] 4622.11BSD 1992-02-xx [SMS] 4632.11BSD rev #430 1999-12-13 [SMS] 464 46532V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4663BSD late 1979 [QCU] March 1980 [TUHS] 467 virtual memory, page replacement, 468 demand paging 4694.0BSD 1980-10-xx 4704.1BSD 1981-07-08 [DOC] 4714.1aBSD 1982-04-xx 472 alpha release, 100 sites, networking [44B] 4734.1bBSD internal release, fast filesystem [44B] 4744.1cBSD late 1982 475 beta release, IPC [44B] 4764.2BSD 1983-09-xx [QCU] 477 1983-08-03 [DOC] 4784.3BSD 1986-06-xx [QCU] 479 1986-04-05 [KB], [DOC] 4804.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4814.3BSD NET/1 1988-11-xx [QCU] 482 1989-01-01 [DOC] 4834.3BSD Reno 1990-06-29 [QCU], [DOC] 4844.3BSD NET/2 1991-06-28 [QCU], [DOC] 485 486BSD/386 ALPHA 1991-12-xx [BSDI] 487 first code released to people outside BSDI 488386BSD 0.0 1992-02-xx [DOC] 489BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 490BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 491386BSD 0.1 1992-07-28 [DOC] 4924.4BSD Alpha 1992-07-07 493BSD/386 0.9.3 1992-10-xx [BSDI] 494 first external gamma; G customers 495BSD/386 0.9.4 1992-12-xx [BSDI] 496 would have been 1.0 except for request 497 for preliminary injunction 498BSD/386 1.0 1993-03-xx [BSDI] 499 injunction denied; first official release 500NetBSD 0.8 1993-04-20 [NBD] 5014.4BSD 1993-06-01 [USE] 502NetBSD 0.9 1993-08-23 [NBD] 503FreeBSD 1.0 1993-11-01 [FBD] 504FreeBSD 1.0.2 1993-11-14 [FBD] 505 supersedes 1.0 13 days after release. 506BSD/386 1.1 1994-02-xx [BSDI] 5074.4BSD Lite 1994-03-01 [USE] 508FreeBSD 1.1 1994-05-07 [FBD] 509FreeBSD 1.1.5 1994-06-30 [FBD] 510FreeBSD 1.1.5.1 1994-07-05 [FBD] 511 supersedes 1.1.5 5 days after release. 512NetBSD 1.0 1994-10-26 [NBD] 513386BSD 1.0 1994-11-12 [USE] 514FreeBSD 2.0 1994-11-23 [FBD] 515BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 516FreeBSD 2.0.5 1995-06-10 [FBD] 517BSD/OS 2.0.1 1995-06-xx [BSDI] 5184.4BSD Lite Release 2 1995-06-xx [44B] 519 the true final distribution from the CSRG 520FreeBSD 2.1.0 1995-11-19 [FBD] 521NetBSD 1.1 1995-11-26 [NBD] 522BSD/OS 2.1 1996-01-xx [BSDI] 523FreeBSD 2.1.5 1996-07-14 [FBD] 524NetBSD 1.2 1996-10-04 [NBD] 525OpenBSD 2.0 1996-10-18 [OBD] 526FreeBSD 2.1.6 1996-11-16 [FBD] 527FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 528Rhapsody 1997-xx-xx 529FreeBSD 2.1.7 1997-02-20 [FBD] 530BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 531FreeBSD 2.2.0 1997-03-16 [FBD] 532FreeBSD 2.2.1 1997-03-25 [FBD] 533FreeBSD 2.2.2 1997-05-16 [FBD] 534NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 535OpenBSD 2.1 1997-06-01 [OBD] 536FreeBSD 2.2.5 1997-10-22 [FBD] 537OpenBSD 2.2 1997-12-01 [OBD] 538NetBSD 1.3 1998-01-04 [NBD] 539FreeBSD 2.2.6 1998-03-25 [FBD] 540NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 541BSD/OS 3.1 1998-03-xx [BSDI] 542OpenBSD 2.3 1998-05-19 [OBD] 543NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 544FreeBSD 2.2.7 1998-07-22 [FBD] 545BSD/OS 4.0 1998-08-xx [BSDI] 546 2-lock MP support, ELF executables 547FreeBSD 3.0 1998-10-16 [FBD] 548 FreeBSD-3.0 is a snapshot from -current, 549 while 3.1 and 3.2 are from 3.x-stable which 550 was branched quite some time after 3.0-release 551FreeBSD 2.2.8 1998-11-29 [FBD] 552OpenBSD 2.4 1998-12-01 [OBD] 553NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 554FreeBSD 3.1 1999-02-15 [FBD] 555BSD/OS 4.0.1 1999-03-xx [BSDI] 556NetBSD 1.4 1999-05-12 [NBD] 557FreeBSD 3.2 1999-05-17 [FBD] 558OpenBSD 2.5 1999-05-19 [OBD] 559NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 560FreeBSD 3.3 1999-09-17 [FBD] 561OpenBSD 2.6 1999-12-01 [OBD] 562FreeBSD 3.4 1999-12-20 [FBD] 563BSD/OS 4.1 1999-12-xx [BSDI] 564FreeBSD 4.0 2000-03-13 [FBD] 565NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 566OpenBSD 2.7 2000-06-15 [OBD] 567FreeBSD 3.5 2000-06-24 [FBD] 568FreeBSD 4.1 2000-07-27 [FBD] 569FreeBSD 3.5.1 2000-07-28 [FBD] 570FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 571FreeBSD 4.2 2000-11-21 [FBD] 572NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 573BSD/OS 4.2 2000-11-29 [BSDI] 574OpenBSD 2.8 2000-12-01 [OBD] 575NetBSD 1.5 2000-12-06 [NBD] 576Mac OS X 10.0 2001-03-24 [APL] 577FreeBSD 4.3 2001-04-20 [FBD] 578OpenBSD 2.9 2001-06-01 [OBD] 579NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 580NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 581FreeBSD 4.4 2001-09-18 [FBD] 582Mac OS X 10.1 2001-09-29 [APL] 583OpenBSD 3.0 2001-12-01 [OBD] 584FreeBSD 4.5 2002-01-29 [FBD] 585BSD/OS 4.3 2002-03-14 [WRS] 586OpenBSD 3.1 2002-05-19 [OBD] 587FreeBSD 4.6 2002-06-15 [FBD] 588NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 589FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 590Mac OS X 10.2 2002-08-23 [APL] 591NetBSD 1.6 2002-09-14 [NBD] 592FreeBSD 4.7 2002-10-08 [FBD] 593OpenBSD 3.2 2002-11-01 [OBD] 594FreeBSD 5.0 2003-01-17 [FBD] 595 FreeBSD 5.0 is a separate branch off of 596 -current, similar to 3.0. 597FreeBSD 4.8 2003-04-03 [FBD] 598NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 599OpenBSD 3.3 2003-05-01 [OBD] 600BSD/OS 5.0 2003-05-?? [WRS] 601FreeBSD 5.1 2003-06-09 [FBD] 602Mac OS X 10.3 2003-10-24 [APL] 603FreeBSD 4.9 2003-10-28 [FBD] 604BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 605OpenBSD 3.4 2003-11-01 [OBD] 606FreeBSD 5.2 2004-01-12 [FBD] 607FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 608NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 609OpenBSD 3.5 2004-04-01 [OBD] 610FreeBSD 4.10 2004-05-27 [FBD] 611DragonFly 1.0 2004-07-12 [DFB] 612OpenBSD 3.6 2004-10-29 [OBD] 613FreeBSD 5.3 2004-11-06 [FBD] 614NetBSD 2.0 2004-12-09 [NBD] 615FreeBSD 4.11 2005-01-25 [FBD] 616DragonFly 1.2.0 2005-04-08 [DFB] 617NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 618Mac OS X 10.4 2005-04-29 [APL] 619FreeBSD 5.4 2005-05-09 [FBD] 620OpenBSD 3.7 2005-05-19 [OBD] 621NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 622OpenBSD 3.8 2005-11-01 [OBD] 623FreeBSD 6.0 2005-11-01 [FBD] 624NetBSD 2.1 2005-11-02 [NBD] 625NetBSD 3.0 2005-12-23 [NBD] 626DragonFly 1.4.0 2006-01-08 [DFB] 627FreeBSD 2.2.9 2006-04-01 [FBD] 628OpenBSD 3.9 2006-05-01 [OBD] 629FreeBSD 6.1 2006-05-08 [FBD] 630FreeBSD 5.5 2006-05-25 [FBD] 631NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 632DragonFly 1.6.0 2006-07-24 [DFB] 633OpenBSD 4.0 2006-11-01 [OBD] 634NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 635NetBSD 3.1 2006-11-04 [NBD] 636FreeBSD 6.2 2007-01-15 [FBD] 637DragonFly 1.8.0 2007-01-30 [DFB] 638OpenBSD 4.1 2007-05-01 [OBD] 639DragonFly 1.10.0 2007-08-06 [DFB] 640Mac OS X 10.5 2007-10-26 [APL] 641OpenBSD 4.2 2007-11-01 [OBD] 642NetBSD 4.0 2007-12-19 [NBD] 643FreeBSD 6.3 2008-01-18 [FBD] 644DragonFly 1.12.0 2008-02-26 [DFB] 645FreeBSD 7.0 2008-02-27 [FBD] 646OpenBSD 4.3 2008-05-01 [OBD] 647DragonFly 2.0.0 2008-07-21 [DFB] 648OpenBSD 4.4 2008-11-01 [OBD] 649FreeBSD 6.4 2008-11-28 [FBD] 650FreeBSD 7.1 2009-01-04 [FBD] 651DragonFly 2.2.0 2009-02-17 [DFB] 652NetBSD 5.0 2009-04-29 [NBD] 653OpenBSD 4.5 2009-05-01 [OBD] 654FreeBSD 7.2 2009-05-04 [FBD] 655Mac OS X 10.6 2009-06-08 [APL] 656NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 657DragonFly 2.4.0 2009-09-16 [DFB] 658OpenBSD 4.6 2009-10-18 [OBD] 659FreeBSD 8.0 2009-11-26 [FBD] 660NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 661FreeBSD 7.3 2010-03-23 [FBD] 662DragonFly 2.6.0 2010-03-28 [DFB] 663OpenBSD 4.7 2010-05-19 [OBD] 664FreeBSD 8.1 2010-07-24 [FBD] 665DragonFly 2.8.2 2010-10-30 [DFB] 666OpenBSD 4.8 2010-11-01 [OBD] 667NetBSD 5.1 2010-11-19 [NBD] 668FreeBSD 7.4 2011-02-24 [FBD] 669FreeBSD 8.2 2011-02-24 [FBD] 670DragonFly 2.10.1 2011-04-26 [DFB] 671OpenBSD 4.9 2011-05-01 [OBD] 672Mac OS X 10.7 2011-07-20 [APL] 673OpenBSD 5.0 2011-11-01 [OBD] 674FreeBSD 9.0 2012-01-12 [FBD] 675NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 676DragonFly 3.0.1 2012-02-21 [DFB] 677FreeBSD 8.3 2012-04-18 [FBD] 678OpenBSD 5.1 2012-05-01 [OBD] 679Mac OS X 10.8 2012-07-25 [APL] 680NetBSD 6.0 2012-10-17 [NBD] 681OpenBSD 5.2 2012-11-01 [OBD] 682DragonFly 3.2.1 2012-11-02 [DFB] 683NetBSD 5.2 2012-12-03 [NBD] 684NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 685FreeBSD 9.1 2012-12-30 [FBD] 686DragonFly 3.4.1 2013-04-29 [DFB] 687OpenBSD 5.3 2013-05-01 [OBD] 688NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 689NetBSD 6.1 2013-05-18 [NBD] 690FreeBSD 8.4 2013-06-07 [FBD] 691NetBSD 6.1.1 2013-08-22 [NBD] 692NetBSD 5.1.3 2013-09-29 [NBD] 693NetBSD 5.2.1 2013-09-29 [NBD] 694FreeBSD 9.2 2013-09-30 [FBD] 695NetBSD 6.0.3 2013-09-30 [NBD] 696NetBSD 6.1.2 2013-09-30 [NBD] 697Mac OS X 10.9 2013-10-22 [APL] 698OpenBSD 5.4 2013-11-01 [OBD] 699DragonFly 3.6.0 2013-11-25 [DFB] 700FreeBSD 10.0 2014-01-20 [FBD] 701NetBSD 5.1.4 2014-01-25 [NBD] 702NetBSD 5.2.2 2014-01-25 [NBD] 703NetBSD 6.0.4 2014-01-25 [NBD] 704NetBSD 6.1.3 2014-01-25 [NBD] 705DragonFly 3.6.1 2014-02-22 [DFB] 706DragonFly 3.6.2 2014-04-10 [DFB] 707NetBSD 6.0.5 2014-04-12 [NBD] 708NetBSD 6.1.4 2014-04-12 [NBD] 709OpenBSD 5.5 2014-05-01 [OBD] 710DragonFly 3.8.0 2014-06-04 [DFB] 711DragonFly 3.8.1 2014-06-16 [DFB] 712DragonFly 3.6.3 2014-06-17 [DFB] 713FreeBSD 9.3 2014-07-05 [FBD] 714DragonFly 3.8.2 2014-08-08 [DFB] 715NetBSD 6.0.6 2014-09-22 [NBD] 716NetBSD 6.1.5 2014-09-22 [NBD] 717Mac OS X 10.10 2014-10-16 [APL] 718OpenBSD 5.6 2014-11-01 [OBD] 719FreeBSD 10.1 2014-11-14 [FBD] 720DragonFly 4.0.1 2014-11-25 [DFB] 721DragonFly 4.0.2 2015-01-07 [DFB] 722DragonFly 4.0.3 2015-01-21 [DFB] 723DragonFly 4.0.4 2015-03-09 [DFB] 724DragonFly 4.0.5 2015-03-23 [DFB] 725OpenBSD 5.7 2015-05-01 [OBD] 726DragonFly 4.2.0 2015-06-29 [DFB] 727FreeBSD 10.2 2015-08-13 [FBD] 728NetBSD 7.0 2015-09-25 [NBD] 729OS X 10.11 2015-09-30 [APL] 730OpenBSD 5.8 2015-10-18 [OBD] 731DragonFly 4.4.1 2015-12-07 [DFB] 732OpenBSD 5.9 2016-03-29 [OBD] 733FreeBSD 10.3 2016-04-04 [FBD] 734NetBSD 7.0.1 2016-05-22 [NBD] 735DragonFly 4.6.0 2016-08-02 [DFB] 736OpenBSD 6.0 2016-09-01 [OBD] 737macOS 10.12 2016-09-20 [APL] 738FreeBSD 11.0 2016-10-10 [FBD] 739NetBSD 7.0.2 2016-10-21 [NBD] 740NetBSD 7.1 2017-03-11 [NBD] 741DragonFly 4.8.0 2017-03-27 [DFB] 742OpenBSD 6.1 2017-04-11 [OBD] 743FreeBSD 11.1 2017-07-26 [FBD] 744macOS 10.13 2017-09-25 [APL] 745FreeBSD 10.4 2017-10-03 [FBD] 746OpenBSD 6.2 2017-10-09 [OBD] 747DragonFly 5.0.0 2017-10-16 [DFB] 748DragonFly 5.0.1 2017-11-06 [DFB] 749DragonFly 5.0.2 2017-12-04 [DFB] 750NetBSD 7.1.1 2017-12-22 [NBD] 751NetBSD 7.1.2 2018-03-15 [NBD] 752OpenBSD 6.3 2018-04-02 [OBD] 753DragonFly 5.2.0 2018-04-10 [DFB] 754DragonFly 5.2.1 2018-05-20 [DFB] 755DragonFly 5.2.2 2018-06-18 [DFB] 756FreeBSD 11.2 2018-06-27 [FBD] 757NetBSD 8.0 2018-07-17 [NBD] 758NetBSD 7.2 2018-08-29 [NBD] 759macOS 10.14 2018-09-24 [APL] 760OpenBSD 6.4 2018-10-18 [OBD] 761DragonFly 5.4.0 2018-12-03 [DFB] 762FreeBSD 12.0 2018-12-11 [FBD] 763DragonFly 5.4.1 2018-12-24 [DFB] 764 765Bibliography 766------------------------ 767 768Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 769Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 770System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 771 772Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 773Company, Inc., 1994. ISBN 0-201-54777-5 774 775McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 776Quarterman. The Design and Implementation of the 4.4BSD Operating 777System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 778 779McKusick, Marshall Kirk, George Neville-Neil. The Design and 780Implementation of the FreeBSD Operating System. 781Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 782 783McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 784Design and Implementation of the FreeBSD Operating System, 2nd Edition. 785Pearson Education, Inc., 2014. ISBN 0-321-96897-2 786 787Doug McIlroy. Research Unix Reader. 788 789Michael G. Brown. The Role of BSD in the Development of Unix. 790Presented to the Tasmanian Unix Special Interest Group of the 791Australian Computer Society, Hobart, August 1993. 792 793Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 794URL: http://www.byte.com/art/9410/sec8/art3.htm 795 796Andreas Klemm, Lars Köller. If you're going to San Francisco ... 797Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 798 799BSD Release Announcements collection. 800URL: https://www.FreeBSD.org/releases/ 801 802BSD Hypertext Man Pages 803URL: https://www.FreeBSD.org/cgi/man.cgi 804 805UNIX history graphing project 806URL: http://minnie.tuhs.org/Unix_History/index.html 807 808UNIX history 809URL: http://www.levenez.com/unix/ 810 811James Howard: The BSD Family Tree 812URL: http://ezine.daemonnews.org/200104/bsd_family.html 813("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 814 815 816Acknowledgments 817--------------- 818 819Josh Gilliam for suggestions, bug fixes, and finding very old 820original BSD announcements from Usenet or tapes. 821 822Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 823 824-- 825Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 826URL: https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 827 828$FreeBSD: head/share/misc/bsd-family-tree 343904 2019-02-08 11:49:59Z pluknet $ 829