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 | | | | | | OpenBSD 5.1 | 262 | | | Mac OS X | `----. | | 263 | | | 10.8 | \ | | 264 | | | | NetBSD 6.0 | | | 265 | | | | | | | | OpenBSD 5.2 DragonFly 3.2.1 266 | FreeBSD | | | | | NetBSD | | 267 | 9.1 | | | | | 5.2 | | 268 | | | | | | | | | | 269 | | | | | | | NetBSD | | 270 | | | | | | | 5.2.1 | | 271 | | | | | | | | | 272 | | | | | | \ | | 273 | | | | | | NetBSD | | 274 | | | | | | 6.0.1 | | 275 | | | | | | | | | 276 | | | | | | NetBSD | | 277 | | | | | | 6.0.2 | | 278 | | | | | | | OpenBSD 5.3 DragonFly 3.4.1 279 | | | | | | NetBSD | | 280 | | | | | | 6.0.3 | | 281 | | | | | | | | | 282 | | | | | | NetBSD | | 283 | | | | | | 6.0.4 | | 284 | | | | | | | | | 285 | | | | | | NetBSD | | 286 | | | | | | 6.0.5 | | 287 | | | | | | | | 288 | | | | | |`-NetBSD 6.1 | | 289 | | FreeBSD | | | | | 290 | | 8.4 | | NetBSD 6.1.1 | | 291 | | | | | | | 292 | FreeBSD | | NetBSD 6.1.2 | | 293 | 9.2 Mac OS X | | | | 294 | | 10.9 | | OpenBSD 5.4 | 295 | `-----. | | | | DragonFly 3.6.0 296 | \ | | | | | 297 *--FreeBSD | | | NetBSD 6.1.3 | | 298 | 10.0 | | | | | | 299 | | | | | | | DragonFly 3.6.1 300 | | | | | | | | 301 | | | | | | | | 302 | | | | | | | DragonFly 3.6.2 303 | | | | | NetBSD 6.1.4 | | 304 | | | | | | | | 305 | | | | | | OpenBSD 5.5 | 306 | | | | | | | | 307 | | | | | | | DragonFly 3.8.0 308 | | | | | | | | 309 | | | | | | | | 310 | | | | | | | DragonFly 3.8.1 311 | | | | | | | | 312 | | | | | | | | 313 | | | | | | | DragonFly 3.6.3 314 | | | | | | | | 315 | | FreeBSD | | | | | 316 | | 9.3 | | | | | 317 | | | | NetBSD 6.1.5 | DragonFly 3.8.2 318 | | Mac OS X | | | 319 | | 10.10 | | | 320 | | | | OpenBSD 5.6 | 321 | FreeBSD | | | | 322 | 10.1 | | | DragonFly 4.0.1 323 | | | | | | 324 | | | | | DragonFly 4.0.2 325 | | | | | | 326 | | | | | DragonFly 4.0.3 327 | | | | | | 328 | | | | | DragonFly 4.0.4 329 | | | | | | 330 | | | | | DragonFly 4.0.5 331 | | | | | | 332 | | | | OpenBSD 5.7 | 333 | | | | | DragonFly 4.2.0 334 | FreeBSD | | | | 335 | 10.2 | | | | 336 | | OS X NetBSD 7.0 | | 337 | | 10.11 | OpenBSD 5.8 | 338 | | | | | DragonFly 4.4.1 339 | FreeBSD | | OpenBSD 5.9 | 340 | 10.3 | | | | 341 | | | | | 342FreeBSD 11 -current | NetBSD -current OpenBSD -current DragonFly -current 343 | | | | | 344 v v v v v 345 346Time 347---------------- 348 349Time tolerance +/- 6 months, depending on which book/article you read; if it 350was the announcement in Usenet or if it was available as tape. 351 352[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 353 and John Quarterman. The Design and Implementation of 354 the 4.4BSD Operating System. 355[APL] Apple website [http://www.apple.com/macosx/] 356[BSDI] Berkeley Software Design, Inc. 357[DFB] DragonFlyBSD Project, The. 358[DOC] README, COPYRIGHT on tape. 359[FBD] FreeBSD Project, The. 360[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 361 Volume 11, Info 4, April, 1987. 362[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 363 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 364[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 365 Changes in the Kernel in 2.9BSD. Second Berkeley Software 366 Distribution UNIX Version 2.9, July, 1983. 367[NBD] NetBSD Project, The. 368[OBD] OpenBSD Project, The. 369[QCU] Salus, Peter H. A quarter century of UNIX. 370[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 371[TUHS] The Unix Historical Society. http://minnie.tuhs.org/Unix_History/. 372[USE] Usenet announcement. 373[WRS] Wind River Systems, Inc. 374[dmr] Dennis Ritchie, via E-Mail 375 376Multics 1965 377UNIX Summer 1969 378 DEC PDP-7 379First Edition 1971-11-03 [QCU] 380 DEC PDP-11/20, Assembler 381Second Edition 1972-06-12 [QCU] 382 10 UNIX installations 383Third Edition 1973-02-xx [QCU] 384 Pipes, 16 installations 385Fourth Edition 1973-11-xx [QCU] 386 rewriting in C effected, 387 above 30 installations 388Fifth Edition 1974-06-xx [QCU] 389 above 50 installations 390Sixth Edition 1975-05-xx [QCU] 391 port to DEC Vax 392Seventh Edition 1979-01-xx [QCU] 393 first portable UNIX 394Eighth Edition 1985-02-xx [QCU] 395 VAX 11/750, VAX 11/780 [dmr] 396 descended from 4.1c BSD [dmr] 397 descended from 4.1 BSD [44B] 398 scooping-out and replacement of the character-device 399 and networking part by the streams mechanism 400 401Ninth Edition 1986-09-xx [QCU] 402Tenth Edition 1989-10-xx [QCU] 403 4041BSD late 1977 405 1978-03-09 [QCU] 406 PDP-11, Pascal, ex(1) 407 30 free copies of 1BSD sent out 408 35 tapes sold for 50 USD [QCU] 4092BSD mid 1978 [QCU] 1979-05-10 [TUHS] 410 75 2BSD tapes shipped 4112.79BSD 1980-04-xx [TUHS] 4122.8BSD 1981-07-xx [KSJ] 413 4142.8.1BSD 1982-01-xx [QCU] 415 set of performance improvements 4162.9BSD 1983-07-xx [KSJ] 4172.9.1BSD 1983-11-xx [TUHS] 4182.9BSD-Seismo 1985-08-xx [SMS] 4192.10BSD 1987-04-xx [KKK] 4202.10.1BSD 1989-01-xx [SMS] 4212.11BSD 1992-02-xx [SMS] 4222.11BSD rev #430 1999-12-13 [SMS] 423 42432V 1978-1[01]-xx [QCU] 4253BSD late 1979 [QCU] March 1980 [TUHS] 426 virtual memory, page replacement, 427 demand paging 4284.0BSD 1980-10-xx 4294.1BSD 1981-07-08 [DOC] 4304.1aBSD 1982-04-xx 431 alpha release, 100 sites, networking [44B] 4324.1bBSD internal release, fast filesystem [44B] 4334.1cBSD late 1982 434 beta release, IPC [44B] 4354.2BSD 1983-09-xx [QCU] 436 1983-08-03 [DOC] 4374.3BSD 1986-06-xx [QCU] 438 1986-04-05 [KB], [DOC] 4394.3BSD Tahoe 1988-06-15 [QCU], [DOC] 4404.3BSD NET/1 1988-11-xx [QCU] 441 1989-01-01 [DOC] 4424.3BSD Reno 1990-06-29 [QCU], [DOC] 4434.3BSD NET/2 1991-06-28 [QCU], [DOC] 444 445BSD/386 ALPHA 1991-12-xx [BSDI] 446 first code released to people outside BSDI 447386BSD 0.0 1992-02-xx [DOC] 448BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 449BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 450386BSD 0.1 1992-07-28 [DOC] 4514.4BSD Alpha 1992-07-07 452BSD/386 0.9.3 1992-10-xx [BSDI] 453 first external gamma; G customers 454BSD/386 0.9.4 1992-12-xx [BSDI] 455 would have been 1.0 except for request 456 for preliminary injunction 457BSD/386 1.0 1993-03-xx [BSDI] 458 injunction denied; first official release 459NetBSD 0.8 1993-04-20 [NBD] 4604.4BSD 1993-06-01 [USE] 461NetBSD 0.9 1993-08-23 [NBD] 462FreeBSD 1.0 1993-11-01 [FBD] 463FreeBSD 1.0.2 1993-11-14 [FBD] 464 supersedes 1.0 13 days after release. 465BSD/386 1.1 1994-02-xx [BSDI] 4664.4BSD Lite 1994-03-01 [USE] 467FreeBSD 1.1 1994-05-07 [FBD] 468FreeBSD 1.1.5 1994-06-30 [FBD] 469FreeBSD 1.1.5.1 1994-07-05 [FBD] 470 supersedes 1.1.5 5 days after release. 471NetBSD 1.0 1994-10-26 [NBD] 472386BSD 1.0 1994-11-12 [USE] 473FreeBSD 2.0 1994-11-23 [FBD] 474BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 475FreeBSD 2.0.5 1995-06-10 [FBD] 476BSD/OS 2.0.1 1995-06-xx [BSDI] 4774.4BSD Lite Release 2 1995-06-xx [44B] 478 the true final distribution from the CSRG 479FreeBSD 2.1.0 1995-11-19 [FBD] 480NetBSD 1.1 1995-11-26 [NBD] 481BSD/OS 2.1 1996-01-xx [BSDI] 482FreeBSD 2.1.5 1996-07-14 [FBD] 483NetBSD 1.2 1996-10-04 [NBD] 484OpenBSD 2.0 1996-10-18 [OBD] 485FreeBSD 2.1.6 1996-11-16 [FBD] 486FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 487Rhapsody 1997-xx-xx 488FreeBSD 2.1.7 1997-02-20 [FBD] 489BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 490FreeBSD 2.2.0 1997-03-16 [FBD] 491FreeBSD 2.2.1 1997-03-25 [FBD] 492FreeBSD 2.2.2 1997-05-16 [FBD] 493NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 494OpenBSD 2.1 1997-06-01 [OBD] 495FreeBSD 2.2.5 1997-10-22 [FBD] 496OpenBSD 2.2 1997-12-01 [OBD] 497NetBSD 1.3 1998-01-04 [NBD] 498FreeBSD 2.2.6 1998-03-25 [FBD] 499NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 500BSD/OS 3.1 1998-03-xx [BSDI] 501OpenBSD 2.3 1998-05-19 [OBD] 502NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 503FreeBSD 2.2.7 1998-07-22 [FBD] 504BSD/OS 4.0 1998-08-xx [BSDI] 505 2-lock MP support, ELF executables 506FreeBSD 3.0 1998-10-16 [FBD] 507 FreeBSD-3.0 is a snapshot from -current, 508 while 3.1 and 3.2 are from 3.x-stable which 509 was branched quite some time after 3.0-release 510FreeBSD 2.2.8 1998-11-29 [FBD] 511OpenBSD 2.4 1998-12-01 [OBD] 512NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 513FreeBSD 3.1 1999-02-15 [FBD] 514BSD/OS 4.0.1 1999-03-xx [BSDI] 515NetBSD 1.4 1999-05-12 [NBD] 516FreeBSD 3.2 1999-05-17 [FBD] 517OpenBSD 2.5 1999-05-19 [OBD] 518NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 519FreeBSD 3.3 1999-09-17 [FBD] 520OpenBSD 2.6 1999-12-01 [OBD] 521FreeBSD 3.4 1999-12-20 [FBD] 522BSD/OS 4.1 1999-12-xx [BSDI] 523FreeBSD 4.0 2000-03-13 [FBD] 524NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 525OpenBSD 2.7 2000-06-15 [OBD] 526FreeBSD 3.5 2000-06-24 [FBD] 527FreeBSD 4.1 2000-07-27 [FBD] 528FreeBSD 3.5.1 2000-07-28 [FBD] 529FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 530FreeBSD 4.2 2000-11-21 [FBD] 531NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 532BSD/OS 4.2 2000-11-29 [BSDI] 533OpenBSD 2.8 2000-12-01 [OBD] 534NetBSD 1.5 2000-12-06 [NBD] 535Mac OS X 10.0 2001-03-24 [APL] 536FreeBSD 4.3 2001-04-20 [FBD] 537OpenBSD 2.9 2001-06-01 [OBD] 538NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 539NetBSD 1.5.2 2001-09-13 [NBD] (patch release) 540FreeBSD 4.4 2001-09-18 [FBD] 541Mac OS X 10.1 2001-09-29 [APL] 542OpenBSD 3.0 2001-12-01 [OBD] 543FreeBSD 4.5 2002-01-29 [FBD] 544BSD/OS 4.3 2002-03-14 [WRS] 545OpenBSD 3.1 2002-05-19 [OBD] 546FreeBSD 4.6 2002-06-15 [FBD] 547NetBSD 1.5.3 2002-07-22 [NBD] (patch release) 548FreeBSD 4.6.2 2002-08-15 [FBD] (patch release) 549Mac OS X 10.2 2002-08-23 [APL] 550NetBSD 1.6 2002-09-14 [NBD] 551FreeBSD 4.7 2002-10-08 [FBD] 552OpenBSD 3.2 2002-11-01 [OBD] 553FreeBSD 5.0 2003-01-17 [FBD] 554 FreeBSD 5.0 is a separate branch off of 555 -current, similar to 3.0. 556FreeBSD 4.8 2003-04-03 [FBD] 557NetBSD 1.6.1 2003-04-21 [NBD] (patch release) 558OpenBSD 3.3 2003-05-01 [OBD] 559BSD/OS 5.0 2003-05-?? [WRS] 560FreeBSD 5.1 2003-06-09 [FBD] 561Mac OS X 10.3 2003-10-24 [APL] 562FreeBSD 4.9 2003-10-28 [FBD] 563BSD/OS 5.1 ISE 2003-10-?? [WRS] (final version) 564OpenBSD 3.4 2003-11-01 [OBD] 565FreeBSD 5.2 2004-01-12 [FBD] 566FreeBSD 5.2.1 2004-02-22 [FBD] (patch release) 567NetBSD 1.6.2 2004-03-01 [NBD] (patch release) 568OpenBSD 3.5 2004-04-01 [OBD] 569FreeBSD 4.10 2004-05-27 [FBD] 570DragonFly 1.0 2004-07-12 [DFB] 571OpenBSD 3.6 2004-10-29 [OBD] 572FreeBSD 5.3 2004-11-06 [FBD] 573NetBSD 2.0 2004-12-09 [NBD] 574FreeBSD 4.11 2005-01-25 [FBD] 575DragonFly 1.2.0 2005-04-08 [DFB] 576NetBSD 2.0.2 2005-04-14 [NBD] (security/critical release) 577Mac OS X 10.4 2005-04-29 [APL] 578FreeBSD 5.4 2005-05-09 [FBD] 579OpenBSD 3.7 2005-05-19 [OBD] 580NetBSD 2.0.3 2005-10-31 [NBD] (security/critical release) 581OpenBSD 3.8 2005-11-01 [OBD] 582FreeBSD 6.0 2005-11-01 [FBD] 583NetBSD 2.1 2005-11-02 [NBD] 584NetBSD 3.0 2005-12-23 [NBD] 585DragonFly 1.4.0 2006-01-08 [DFB] 586FreeBSD 2.2.9 2006-04-01 [FBD] 587OpenBSD 3.9 2006-05-01 [OBD] 588FreeBSD 6.1 2006-05-08 [FBD] 589FreeBSD 5.5 2006-05-25 [FBD] 590NetBSD 3.0.1 2006-07-24 [NBD] (security/critical release) 591DragonFly 1.6.0 2006-07-24 [DFB] 592OpenBSD 4.0 2006-11-01 [OBD] 593NetBSD 3.0.2 2006-11-04 [NBD] (security/critical release) 594NetBSD 3.1 2006-11-04 [NBD] 595FreeBSD 6.2 2007-01-15 [FBD] 596DragonFly 1.8.0 2007-01-30 [DFB] 597OpenBSD 4.1 2007-05-01 [OBD] 598DragonFly 1.10.0 2007-08-06 [DFB] 599Mac OS X 10.5 2007-10-26 [APL] 600OpenBSD 4.2 2007-11-01 [OBD] 601NetBSD 4.0 2007-12-19 [NBD] 602FreeBSD 6.3 2008-01-18 [FBD] 603DragonFly 1.12.0 2008-02-26 [DFB] 604FreeBSD 7.0 2008-02-27 [FBD] 605OpenBSD 4.3 2008-05-01 [OBD] 606DragonFly 2.0.0 2008-07-21 [DFB] 607OpenBSD 4.4 2008-11-01 [OBD] 608FreeBSD 6.4 2008-11-28 [FBD] 609FreeBSD 7.1 2009-01-04 [FBD] 610DragonFly 2.2.0 2009-02-17 [DFB] 611NetBSD 5.0 2009-04-29 [NBD] 612OpenBSD 4.5 2009-05-01 [OBD] 613FreeBSD 7.2 2009-05-04 [FBD] 614Mac OS X 10.6 2009-06-08 [APL] 615NetBSD 5.0.1 2009-08-02 [NBD] (security/critical release) 616DragonFly 2.4.0 2009-09-16 [DFB] 617OpenBSD 4.6 2009-10-18 [OBD] 618FreeBSD 8.0 2009-11-26 [FBD] 619NetBSD 5.0.2 2010-02-12 [NBD] (security/critical release) 620FreeBSD 7.3 2010-03-23 [FBD] 621DragonFly 2.6.0 2010-03-28 [DFB] 622OpenBSD 4.7 2010-05-19 [OBD] 623FreeBSD 8.1 2010-07-24 [FBD] 624DragonFly 2.8.2 2010-10-30 [DFB] 625OpenBSD 4.8 2010-11-01 [OBD] 626NetBSD 5.1 2010-11-19 [NBD] 627FreeBSD 7.4 2011-02-24 [FBD] 628FreeBSD 8.2 2011-02-24 [FBD] 629DragonFly 2.10.1 2011-04-26 [DFB] 630OpenBSD 4.9 2011-05-01 [OBD] 631Mac OS X 10.7 2011-07-20 [APL] 632OpenBSD 5.0 2011-11-01 [OBD] 633FreeBSD 9.0 2012-01-12 [FBD] 634NetBSD 5.1.2 2012-02-02 [NBD] (security/critical release) 635DragonFly 3.0.1 2012-02-21 [DFB] 636FreeBSD 8.3 2012-04-18 [FBD] 637OpenBSD 5.1 2012-05-01 [OBD] 638Mac OS X 10.8 2012-07-25 [APL] 639NetBSD 6.0 2012-10-17 [NBD] 640OpenBSD 5.2 2012-11-01 [OBD] 641DragonFly 3.2.1 2012-11-02 [DFB] 642NetBSD 5.2 2012-12-03 [NBD] 643NetBSD 6.0.1 2012-12-26 [NBD] (security/critical release) 644FreeBSD 9.1 2012-12-30 [FBD] 645DragonFly 3.4.1 2013-04-29 [DFB] 646OpenBSD 5.3 2013-05-01 [OBD] 647NetBSD 6.0.2 2013-05-18 [NBD] (security/critical release) 648NetBSD 6.1 2013-05-18 [NBD] 649FreeBSD 8.4 2013-06-07 [FBD] 650NetBSD 6.1.1 2013-08-22 [NBD] 651NetBSD 5.1.3 2013-09-29 [NBD] 652NetBSD 5.2.1 2013-09-29 [NBD] 653FreeBSD 9.2 2013-09-30 [FBD] 654NetBSD 6.0.3 2013-09-30 [NBD] 655NetBSD 6.1.2 2013-09-30 [NBD] 656Mac OS X 10.9 2013-10-22 [APL] 657OpenBSD 5.4 2013-11-01 [OBD] 658DragonFly 3.6.0 2013-11-25 [DFB] 659FreeBSD 10.0 2014-01-20 [FBD] 660NetBSD 6.0.4 2014-01-27 [NBD] 661NetBSD 6.1.3 2014-01-27 [NBD] 662DragonFly 3.6.1 2014-02-22 [DFB] 663DragonFly 3.6.2 2014-04-10 [DFB] 664NetBSD 6.0.5 2014-04-19 [NDB] 665NetBSD 6.1.4 2014-04-19 [NDB] 666OpenBSD 5.5 2014-05-01 [OBD] 667DragonFly 3.8.0 2014-06-04 [DFB] 668DragonFly 3.8.1 2014-06-16 [DFB] 669DragonFly 3.6.3 2014-06-17 [DFB] 670FreeBSD 9.3 2014-07-05 [FBD] 671DragonFly 3.8.2 2014-08-08 [DFB] 672NetBSD 6.1.5 2014-09-22 [NBD] 673Mac OS X 10.10 2014-10-16 [APL] 674OpenBSD 5.6 2014-11-01 [OBD] 675FreeBSD 10.1 2014-11-14 [FBD] 676DragonFly 4.0.1 2014-11-25 [DFB] 677DragonFly 4.0.2 2015-01-07 [DFB] 678DragonFly 4.0.3 2015-01-21 [DFB] 679DragonFly 4.0.4 2015-03-09 [DFB] 680DragonFly 4.0.5 2015-03-23 [DFB] 681OpenBSD 5.7 2015-05-01 [OBD] 682DragonFly 4.2.0 2015-06-29 [DFB] 683FreeBSD 10.2 2015-08-13 [FBD] 684NetBSD 7.0 2015-09-25 [NBD] 685OS X 10.11 2015-09-30 [APL] 686OpenBSD 5.8 2015-10-18 [OBD] 687DragonFly 4.4.1 2015-12-07 [DFB] 688OpenBSD 5.9 2016-03-29 [OBD] 689FreeBSD 10.3 2016-04-04 [FBD] 690 691Bibliography 692------------------------ 693 694Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 695Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 696System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 697 698Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 699Company, Inc., 1994. ISBN 0-201-54777-5 700 701McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 702Quarterman. The Design and Implementation of the 4.4BSD Operating 703System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 704 705McKusick, Marshall Kirk, George Neville-Neil. The Design and 706Implementation of the FreeBSD Operating System. 707Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2 708 709McKusick, Marshall Kirk, George Neville-Neil, Robert Watson. The 710Design and Implementation of the FreeBSD Operating System, 2nd Edition. 711Pearson Education, Inc., 2014. ISBN 0-321-96897-2 712 713Doug McIlroy. Research Unix Reader. 714 715Michael G. Brown. The Role of BSD in the Development of Unix. 716Presented to the Tasmanian Unix Special Interest Group of the 717Australian Computer Society, Hobart, August 1993. 718 719Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 720URL: http://www.byte.com/art/9410/sec8/art3.htm 721 722Andreas Klemm, Lars Köller. If you're going to San Francisco ... 723Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 724 725BSD Release Announcements collection. 726URL: http://www.FreeBSD.org/releases/ 727 728BSD Hypertext Man Pages 729URL: http://www.FreeBSD.org/cgi/man.cgi 730 731UNIX history graphing project 732URL: http://minnie.tuhs.org/Unix_History/index.html 733 734UNIX history 735URL: http://www.levenez.com/unix/ 736 737James Howard: The BSD Family Tree 738URL: http://ezine.daemonnews.org/200104/bsd_family.html 739("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 740 741 742Acknowledgments 743--------------- 744 745Josh Gilliam for suggestions, bug fixes, and finding very old 746original BSD announcements from Usenet or tapes. 747 748Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 749 750-- 751Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG> 752URL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree 753 754$FreeBSD: head/share/misc/bsd-family-tree 297551 2016-04-04 10:27:48Z maxim $ 755