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 | | | | | 378 | | | | | OpenBSD 6.4 | 379 | v | | | | | 380 | | | v | | 381FreeBSD 12 -current | NetBSD -current OpenBSD -current DragonFly -current 382 | | | | | 383 v v v v v 384 385Time 386---------------- 387 388Time tolerance +/- 6 months, depending on which book/article you read; if it 389was the announcement in Usenet or if it was available as tape. 390 391[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 392 and John Quarterman. The Design and Implementation of 393 the 4.4BSD Operating System. 394[APL] Apple website [https://www.apple.com/macosx/] 395[BSDI] Berkeley Software Design, Inc. 396[DFB] DragonFlyBSD Project, The. 397[DOC] README, COPYRIGHT on tape. 398[FBD] FreeBSD Project, The. 399[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 400 Volume 11, Info 4, April, 1987. 401[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 402 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 403[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 404 Changes in the Kernel in 2.9BSD. Second Berkeley Software 405 Distribution UNIX Version 2.9, July, 1983. 406[NBD] NetBSD Project, The. 407[OBD] OpenBSD Project, The. 408[QCU] Salus, Peter H. A quarter century of UNIX. 409[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 410[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 411[USE] Usenet announcement. 412[WRS] Wind River Systems, Inc. 413[dmr] Dennis Ritchie, via E-Mail 414 415Multics 1965 416UNIX Summer 1969 417 DEC PDP-7 418First Edition 1971-11-03 [QCU] 419 DEC PDP-11/20, Assembler 420Second Edition 1972-06-12 [QCU] 421 10 UNIX installations 422Third Edition 1973-02-xx [QCU] 423 Pipes, 16 installations 424Fourth Edition 1973-11-xx [QCU] 425 rewriting in C effected, 426 above 30 installations 427Fifth Edition 1974-06-xx [QCU] 428 above 50 installations 429Sixth Edition 1975-05-xx [QCU] 430 port to DEC Vax 431Seventh Edition 1979-01-xx [QCU] 1979-01-10 [TUHS] 432 first portable UNIX 433Eighth Edition 1985-02-xx [QCU] 434 VAX 11/750, VAX 11/780 [dmr] 435 descended from 4.1c BSD [dmr] 436 descended from 4.1 BSD [44B] 437 scooping-out and replacement of the character-device 438 and networking part by the streams mechanism 439 440Ninth Edition 1986-09-xx [QCU] 441Tenth Edition 1989-10-xx [QCU] 442 4431BSD late 1977 444 1978-03-09 [QCU] 445 PDP-11, Pascal, ex(1) 446 30 free copies of 1BSD sent out 447 35 tapes sold for 50 USD [QCU] 4482BSD mid 1978 [QCU] 1979-05-10 [TUHS] 449 75 2BSD tapes shipped 4502.79BSD 1980-04-xx [TUHS] 4512.8BSD 1981-07-xx [KSJ] 452 4532.8.1BSD 1982-01-xx [QCU] 454 set of performance improvements 4552.9BSD 1983-07-xx [KSJ] 4562.9.1BSD 1983-11-xx [TUHS] 4572.9BSD-Seismo 1985-08-xx [SMS] 4582.10BSD 1987-04-xx [KKK] 4592.10.1BSD 1989-01-xx [SMS] 4602.11BSD 1992-02-xx [SMS] 4612.11BSD rev #430 1999-12-13 [SMS] 462 46332V 1978-1[01]-xx [QCU] 1979-03-26 [TUHS] 4643BSD late 1979 [QCU] March 1980 [TUHS] 465 virtual memory, page replacement, 466 demand paging 4674.0BSD 1980-10-xx 4684.1BSD 1981-07-08 [DOC] 4694.1aBSD 1982-04-xx 470 alpha release, 100 sites, networking [44B] 4714.1bBSD internal release, fast filesystem [44B] 4724.1cBSD late 1982 473 beta release, IPC [44B] 4744.2BSD 1983-09-xx [QCU] 475 1983-08-03 [DOC] 4764.3BSD 1986-06-xx [QCU] 477 1986-04-05 [KB], [DOC] 4784.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4794.3BSD NET/1 1988-11-xx [QCU] 480 1989-01-01 [DOC] 4814.3BSD Reno 1990-06-29 [QCU], [DOC] 4824.3BSD NET/2 1991-06-28 [QCU], [DOC] 483 484BSD/386 ALPHA 1991-12-xx [BSDI] 485 first code released to people outside BSDI 486386BSD 0.0 1992-02-xx [DOC] 487BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 488BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 489386BSD 0.1 1992-07-28 [DOC] 4904.4BSD Alpha 1992-07-07 491BSD/386 0.9.3 1992-10-xx [BSDI] 492 first external gamma; G customers 493BSD/386 0.9.4 1992-12-xx [BSDI] 494 would have been 1.0 except for request 495 for preliminary injunction 496BSD/386 1.0 1993-03-xx [BSDI] 497 injunction denied; first official release 498NetBSD 0.8 1993-04-20 [NBD] 4994.4BSD 1993-06-01 [USE] 500NetBSD 0.9 1993-08-23 [NBD] 501FreeBSD 1.0 1993-11-01 [FBD] 502FreeBSD 1.0.2 1993-11-14 [FBD] 503 supersedes 1.0 13 days after release. 504BSD/386 1.1 1994-02-xx [BSDI] 5054.4BSD Lite 1994-03-01 [USE] 506FreeBSD 1.1 1994-05-07 [FBD] 507FreeBSD 1.1.5 1994-06-30 [FBD] 508FreeBSD 1.1.5.1 1994-07-05 [FBD] 509 supersedes 1.1.5 5 days after release. 510NetBSD 1.0 1994-10-26 [NBD] 511386BSD 1.0 1994-11-12 [USE] 512FreeBSD 2.0 1994-11-23 [FBD] 513BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 514FreeBSD 2.0.5 1995-06-10 [FBD] 515BSD/OS 2.0.1 1995-06-xx [BSDI] 5164.4BSD Lite Release 2 1995-06-xx [44B] 517 the true final distribution from the CSRG 518FreeBSD 2.1.0 1995-11-19 [FBD] 519NetBSD 1.1 1995-11-26 [NBD] 520BSD/OS 2.1 1996-01-xx [BSDI] 521FreeBSD 2.1.5 1996-07-14 [FBD] 522NetBSD 1.2 1996-10-04 [NBD] 523OpenBSD 2.0 1996-10-18 [OBD] 524FreeBSD 2.1.6 1996-11-16 [FBD] 525FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 526Rhapsody 1997-xx-xx 527FreeBSD 2.1.7 1997-02-20 [FBD] 528BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 529FreeBSD 2.2.0 1997-03-16 [FBD] 530FreeBSD 2.2.1 1997-03-25 [FBD] 531FreeBSD 2.2.2 1997-05-16 [FBD] 532NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 533OpenBSD 2.1 1997-06-01 [OBD] 534FreeBSD 2.2.5 1997-10-22 [FBD] 535OpenBSD 2.2 1997-12-01 [OBD] 536NetBSD 1.3 1998-01-04 [NBD] 537FreeBSD 2.2.6 1998-03-25 [FBD] 538NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 539BSD/OS 3.1 1998-03-xx [BSDI] 540OpenBSD 2.3 1998-05-19 [OBD] 541NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 542FreeBSD 2.2.7 1998-07-22 [FBD] 543BSD/OS 4.0 1998-08-xx [BSDI] 544 2-lock MP support, ELF executables 545FreeBSD 3.0 1998-10-16 [FBD] 546 FreeBSD-3.0 is a snapshot from -current, 547 while 3.1 and 3.2 are from 3.x-stable which 548 was branched quite some time after 3.0-release 549FreeBSD 2.2.8 1998-11-29 [FBD] 550OpenBSD 2.4 1998-12-01 [OBD] 551NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 552FreeBSD 3.1 1999-02-15 [FBD] 553BSD/OS 4.0.1 1999-03-xx [BSDI] 554NetBSD 1.4 1999-05-12 [NBD] 555FreeBSD 3.2 1999-05-17 [FBD] 556OpenBSD 2.5 1999-05-19 [OBD] 557NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 558FreeBSD 3.3 1999-09-17 [FBD] 559OpenBSD 2.6 1999-12-01 [OBD] 560FreeBSD 3.4 1999-12-20 [FBD] 561BSD/OS 4.1 1999-12-xx [BSDI] 562FreeBSD 4.0 2000-03-13 [FBD] 563NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 564OpenBSD 2.7 2000-06-15 [OBD] 565FreeBSD 3.5 2000-06-24 [FBD] 566FreeBSD 4.1 2000-07-27 [FBD] 567FreeBSD 3.5.1 2000-07-28 [FBD] 568FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 569FreeBSD 4.2 2000-11-21 [FBD] 570NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 571BSD/OS 4.2 2000-11-29 [BSDI] 572OpenBSD 2.8 2000-12-01 [OBD] 573NetBSD 1.5 2000-12-06 [NBD] 574Mac OS X 10.0 2001-03-24 [APL] 575FreeBSD 4.3 2001-04-20 [FBD] 576OpenBSD 2.9 2001-06-01 [OBD] 577NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 578NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 579FreeBSD 4.4 2001-09-18 [FBD] 580Mac OS X 10.1 2001-09-29 [APL] 581OpenBSD 3.0 2001-12-01 [OBD] 582FreeBSD 4.5 2002-01-29 [FBD] 583BSD/OS 4.3 2002-03-14 [WRS] 584OpenBSD 3.1 2002-05-19 [OBD] 585FreeBSD 4.6 2002-06-15 [FBD] 586NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 587FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 588Mac OS X 10.2 2002-08-23 [APL] 589NetBSD 1.6 2002-09-14 [NBD] 590FreeBSD 4.7 2002-10-08 [FBD] 591OpenBSD 3.2 2002-11-01 [OBD] 592FreeBSD 5.0 2003-01-17 [FBD] 593 FreeBSD 5.0 is a separate branch off of 594 -current, similar to 3.0. 595FreeBSD 4.8 2003-04-03 [FBD] 596NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 597OpenBSD 3.3 2003-05-01 [OBD] 598BSD/OS 5.0 2003-05-?? [WRS] 599FreeBSD 5.1 2003-06-09 [FBD] 600Mac OS X 10.3 2003-10-24 [APL] 601FreeBSD 4.9 2003-10-28 [FBD] 602BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 603OpenBSD 3.4 2003-11-01 [OBD] 604FreeBSD 5.2 2004-01-12 [FBD] 605FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 606NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 607OpenBSD 3.5 2004-04-01 [OBD] 608FreeBSD 4.10 2004-05-27 [FBD] 609DragonFly 1.0 2004-07-12 [DFB] 610OpenBSD 3.6 2004-10-29 [OBD] 611FreeBSD 5.3 2004-11-06 [FBD] 612NetBSD 2.0 2004-12-09 [NBD] 613FreeBSD 4.11 2005-01-25 [FBD] 614DragonFly 1.2.0 2005-04-08 [DFB] 615NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 616Mac OS X 10.4 2005-04-29 [APL] 617FreeBSD 5.4 2005-05-09 [FBD] 618OpenBSD 3.7 2005-05-19 [OBD] 619NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 620OpenBSD 3.8 2005-11-01 [OBD] 621FreeBSD 6.0 2005-11-01 [FBD] 622NetBSD 2.1 2005-11-02 [NBD] 623NetBSD 3.0 2005-12-23 [NBD] 624DragonFly 1.4.0 2006-01-08 [DFB] 625FreeBSD 2.2.9 2006-04-01 [FBD] 626OpenBSD 3.9 2006-05-01 [OBD] 627FreeBSD 6.1 2006-05-08 [FBD] 628FreeBSD 5.5 2006-05-25 [FBD] 629NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 630DragonFly 1.6.0 2006-07-24 [DFB] 631OpenBSD 4.0 2006-11-01 [OBD] 632NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 633NetBSD 3.1 2006-11-04 [NBD] 634FreeBSD 6.2 2007-01-15 [FBD] 635DragonFly 1.8.0 2007-01-30 [DFB] 636OpenBSD 4.1 2007-05-01 [OBD] 637DragonFly 1.10.0 2007-08-06 [DFB] 638Mac OS X 10.5 2007-10-26 [APL] 639OpenBSD 4.2 2007-11-01 [OBD] 640NetBSD 4.0 2007-12-19 [NBD] 641FreeBSD 6.3 2008-01-18 [FBD] 642DragonFly 1.12.0 2008-02-26 [DFB] 643FreeBSD 7.0 2008-02-27 [FBD] 644OpenBSD 4.3 2008-05-01 [OBD] 645DragonFly 2.0.0 2008-07-21 [DFB] 646OpenBSD 4.4 2008-11-01 [OBD] 647FreeBSD 6.4 2008-11-28 [FBD] 648FreeBSD 7.1 2009-01-04 [FBD] 649DragonFly 2.2.0 2009-02-17 [DFB] 650NetBSD 5.0 2009-04-29 [NBD] 651OpenBSD 4.5 2009-05-01 [OBD] 652FreeBSD 7.2 2009-05-04 [FBD] 653Mac OS X 10.6 2009-06-08 [APL] 654NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 655DragonFly 2.4.0 2009-09-16 [DFB] 656OpenBSD 4.6 2009-10-18 [OBD] 657FreeBSD 8.0 2009-11-26 [FBD] 658NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 659FreeBSD 7.3 2010-03-23 [FBD] 660DragonFly 2.6.0 2010-03-28 [DFB] 661OpenBSD 4.7 2010-05-19 [OBD] 662FreeBSD 8.1 2010-07-24 [FBD] 663DragonFly 2.8.2 2010-10-30 [DFB] 664OpenBSD 4.8 2010-11-01 [OBD] 665NetBSD 5.1 2010-11-19 [NBD] 666FreeBSD 7.4 2011-02-24 [FBD] 667FreeBSD 8.2 2011-02-24 [FBD] 668DragonFly 2.10.1 2011-04-26 [DFB] 669OpenBSD 4.9 2011-05-01 [OBD] 670Mac OS X 10.7 2011-07-20 [APL] 671OpenBSD 5.0 2011-11-01 [OBD] 672FreeBSD 9.0 2012-01-12 [FBD] 673NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 674DragonFly 3.0.1 2012-02-21 [DFB] 675FreeBSD 8.3 2012-04-18 [FBD] 676OpenBSD 5.1 2012-05-01 [OBD] 677Mac OS X 10.8 2012-07-25 [APL] 678NetBSD 6.0 2012-10-17 [NBD] 679OpenBSD 5.2 2012-11-01 [OBD] 680DragonFly 3.2.1 2012-11-02 [DFB] 681NetBSD 5.2 2012-12-03 [NBD] 682NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 683FreeBSD 9.1 2012-12-30 [FBD] 684DragonFly 3.4.1 2013-04-29 [DFB] 685OpenBSD 5.3 2013-05-01 [OBD] 686NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 687NetBSD 6.1 2013-05-18 [NBD] 688FreeBSD 8.4 2013-06-07 [FBD] 689NetBSD 6.1.1 2013-08-22 [NBD] 690NetBSD 5.1.3 2013-09-29 [NBD] 691NetBSD 5.2.1 2013-09-29 [NBD] 692FreeBSD 9.2 2013-09-30 [FBD] 693NetBSD 6.0.3 2013-09-30 [NBD] 694NetBSD 6.1.2 2013-09-30 [NBD] 695Mac OS X 10.9 2013-10-22 [APL] 696OpenBSD 5.4 2013-11-01 [OBD] 697DragonFly 3.6.0 2013-11-25 [DFB] 698FreeBSD 10.0 2014-01-20 [FBD] 699NetBSD 5.1.4 2014-01-25 [NBD] 700NetBSD 5.2.2 2014-01-25 [NBD] 701NetBSD 6.0.4 2014-01-25 [NBD] 702NetBSD 6.1.3 2014-01-25 [NBD] 703DragonFly 3.6.1 2014-02-22 [DFB] 704DragonFly 3.6.2 2014-04-10 [DFB] 705NetBSD 6.0.5 2014-04-12 [NBD] 706NetBSD 6.1.4 2014-04-12 [NBD] 707OpenBSD 5.5 2014-05-01 [OBD] 708DragonFly 3.8.0 2014-06-04 [DFB] 709DragonFly 3.8.1 2014-06-16 [DFB] 710DragonFly 3.6.3 2014-06-17 [DFB] 711FreeBSD 9.3 2014-07-05 [FBD] 712DragonFly 3.8.2 2014-08-08 [DFB] 713NetBSD 6.0.6 2014-09-22 [NBD] 714NetBSD 6.1.5 2014-09-22 [NBD] 715Mac OS X 10.10 2014-10-16 [APL] 716OpenBSD 5.6 2014-11-01 [OBD] 717FreeBSD 10.1 2014-11-14 [FBD] 718DragonFly 4.0.1 2014-11-25 [DFB] 719DragonFly 4.0.2 2015-01-07 [DFB] 720DragonFly 4.0.3 2015-01-21 [DFB] 721DragonFly 4.0.4 2015-03-09 [DFB] 722DragonFly 4.0.5 2015-03-23 [DFB] 723OpenBSD 5.7 2015-05-01 [OBD] 724DragonFly 4.2.0 2015-06-29 [DFB] 725FreeBSD 10.2 2015-08-13 [FBD] 726NetBSD 7.0 2015-09-25 [NBD] 727OS X 10.11 2015-09-30 [APL] 728OpenBSD 5.8 2015-10-18 [OBD] 729DragonFly 4.4.1 2015-12-07 [DFB] 730OpenBSD 5.9 2016-03-29 [OBD] 731FreeBSD 10.3 2016-04-04 [FBD] 732NetBSD 7.0.1 2016-05-22 [NBD] 733DragonFly 4.6.0 2016-08-02 [DFB] 734OpenBSD 6.0 2016-09-01 [OBD] 735macOS 10.12 2016-09-20 [APL] 736FreeBSD 11.0 2016-10-10 [FBD] 737NetBSD 7.0.2 2016-10-21 [NBD] 738NetBSD 7.1 2017-03-11 [NBD] 739DragonFly 4.8.0 2017-03-27 [DFB] 740OpenBSD 6.1 2017-04-11 [OBD] 741FreeBSD 11.1 2017-07-26 [FBD] 742macOS 10.13 2017-09-25 [APL] 743FreeBSD 10.4 2017-10-03 [FBD] 744OpenBSD 6.2 2017-10-09 [OBD] 745DragonFly 5.0.0 2017-10-16 [DFB] 746DragonFly 5.0.1 2017-11-06 [DFB] 747DragonFly 5.0.2 2017-12-04 [DFB] 748NetBSD 7.1.1 2017-12-22 [NBD] 749NetBSD 7.1.2 2018-03-15 [NBD] 750OpenBSD 6.3 2018-04-02 [OBD] 751DragonFly 5.2.0 2018-04-10 [DFB] 752DragonFly 5.2.1 2018-05-20 [DFB] 753DragonFly 5.2.2 2018-06-18 [DFB] 754FreeBSD 11.2 2018-06-27 [FBD] 755NetBSD 8.0 2018-07-17 [NBD] 756NetBSD 7.2 2018-08-29 [NBD] 757OpenBSD 6.4 2018-10-18 [OBD] 758 759Bibliography 760------------------------ 761 762Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 763Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 764System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 765 766Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 767Company, Inc., 1994. ISBN 0-201-54777-5 768 769McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 770Quarterman. The Design and Implementation of the 4.4BSD Operating 771System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 772 773McKusick, Marshall Kirk, George Neville-Neil. The Design and 774Implementation of the FreeBSD Operating System. 775Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 776 777McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 778Design and Implementation of the FreeBSD Operating System, 2nd Edition. 779Pearson Education, Inc., 2014. ISBN 0-321-96897-2 780 781Doug McIlroy. Research Unix Reader. 782 783Michael G. Brown. The Role of BSD in the Development of Unix. 784Presented to the Tasmanian Unix Special Interest Group of the 785Australian Computer Society, Hobart, August 1993. 786 787Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 788URL: http://www.byte.com/art/9410/sec8/art3.htm 789 790Andreas Klemm, Lars Köller. If you're going to San Francisco ... 791Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 792 793BSD Release Announcements collection. 794URL: https://www.FreeBSD.org/releases/ 795 796BSD Hypertext Man Pages 797URL: https://www.FreeBSD.org/cgi/man.cgi 798 799UNIX history graphing project 800URL: http://minnie.tuhs.org/Unix_History/index.html 801 802UNIX history 803URL: http://www.levenez.com/unix/ 804 805James Howard: The BSD Family Tree 806URL: http://ezine.daemonnews.org/200104/bsd_family.html 807("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 808 809 810Acknowledgments 811--------------- 812 813Josh Gilliam for suggestions, bug fixes, and finding very old 814original BSD announcements from Usenet or tapes. 815 816Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 817 818-- 819Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 820URL: https://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 821 822$FreeBSD: head/share/misc/bsd-family-tree 339484 2018-10-20 20:34:36Z eadler $ 823