bsd-family-tree revision 1.5.8.4
1 The UNIX system family tree: Research and BSD 2 --------------------------------------------- 3 4 First Edition (V1) 5 | 6 Second Edition (V2) 7 | 8 Third Edition (V3) 9 | 10 Fourth Edition (V4) 11 | 12 Fifth Edition (V5) 13 | 14 Sixth Edition (V6) -----* 15 \ | 16 \ | 17 \ | 18 Seventh Edition (V7) | 19 \ | 20 \ 1BSD 21 32V | 22 \ 2BSD---------------* 23 \ / | 24 \ / | 25 \/ | 26 3BSD | 27 | | 28 4.0BSD 2.7.9BSD 29 | | 30 4.1BSD --------------> 2.8BSD 31 | | 32 4.1aBSD -----------\ | 33 | \ | 34 4.1bBSD \ | 35 | \ | 36 *------ 4.1cBSD --------------> 2.9BSD 37 / | | 38 Eighth Edition | 2.9BSD-Seismo 39 | | | 40 +----<--- 4.2BSD 2.9.1BSD 41 | | | 42 +----<--- 4.3BSD -------------> 2.10BSD 43 | | / | 44 Ninth Edition | / 2.10.1BSD 45 | 4.3BSD Tahoe-----+ | 46 | | \ | 47 | | \ | 48 v | 2.11BSD 49 Tenth Edition | | 50 | 2.11BSD rev #430 51 4.3BSD NET/1 | 52 | v 53 4.3BSD Reno 54 | 55 *---------- 4.3BSD NET/2 -------------------+-------------* 56 | | | | 57 386BSD 0.0 | | BSD/386 ALPHA 58 | | | | 59 386BSD 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 | | | | 67 FreeBSD 1.0 NetBSD 0.9 | BSD/386 1.1 68 | | .----- 4.4BSD Lite | 69 FreeBSD 1.1 | / / | \ | 70 | | / / | \ | 71 FreeBSD 1.1.5 .---|--------' / | \ | 72 | / | / | \ | 73 FreeBSD 1.1.5.1 / | / | \ | 74 | / NetBSD 1.0 <-' | \ | 75 | / | | \ | 76 FreeBSD 2.0 <--' | | BSD/OS 2.0 77 | \ | | 78 FreeBSD 2.0.5 \ | BSD/OS 2.0.1 79 | \ .--- 4.4BSD Lite2 | 80 | \ | | | | | 81 | | FreeBSD 3.0 | | | | 82 | | NetBSD 1.3 | | | 83 | | OpenBSD 2.3 | | 84 | | BSD/OS 3.0 | 85 FreeBSD 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 | | | OpenBSD 2.4 | 116 FreeBSD 3.0 | | | | 117 | | NetBSD 1.3.3 | | 118 *---FreeBSD 3.1 | | | 119 | | | | BSD/OS 4.0.1 120 | FreeBSD 3.2 NetBSD 1.4 OpenBSD 2.5 | 121 | | | | | | 122 | FreeBSD 3.3 | NetBSD 1.4.1 | | 123 | | | | OpenBSD 2.6 | 124 | FreeBSD 3.4 | | | | 125 | | | | | BSD/OS 4.1 126 FreeBSD 4.0 | | NetBSD 1.4.2 | | 127 | | | | | | 128 | | | | | | 129 | FreeBSD 3.5 | | OpenBSD 2.7 | 130 | | | | | | 131 | FreeBSD 3.5.1 | | | | 132 | | | | | 133 *---FreeBSD 4.1 | | | | 134 | | | | | | 135 | FreeBSD 4.1.1 | | | | 136 | | | | | | 137 | FreeBSD 4.2 | NetBSD 1.4.3 | | 138 | | | | | | 139 | | | v | | 140 | | | OpenBSD 2.8 BSD/OS 4.2 141 | | NetBSD 1.5 | | 142 | FreeBSD 4.3 | | | v 143 | | | | OpenBSD 2.9 144 | | | NetBSD 1.5.1 | 145 | v | | | 146 | | NetBSD 1.5.2 | 147 | | | | 148 | | v | 149 | | | 150 FreeBSD 5.0-current NetBSD -current OpenBSD -current 151 | | | 152 v v v 153 154 155 Time 156 ---------------- 157 158 Time tolerance +/- 6 months, depending on which book/article you read; if it 159 was the announcement in Usenet or if it was available as tape. 160 161 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 162 and John Quarterman. The Design and Implementation of 163 the 4.4BSD Operating System. 164 [DOC] README, COPYRIGHT on tape. 165 [QCU] Salus, Peter H. A quarter century of UNIX. 166 [U25] Peter H. Salus. Unix at 25. 167 [USE] Usenet announcement. 168 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 169 Changes in the Kernel in 2.9BSD. Second Berkeley Software 170 Distribution UNIX Version 2.9, July, 1983. 171 [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 172 Volume 11, Info 4, April, 1987. 173 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 174 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 175 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 176 [FBD] FreeBSD Project, The. 177 [NBD] NetBSD Project, The. 178 [OBD] OpenBSD Project, The. 179 [dmr] Dennis Ritchie, via E-Mail 180 [BSDI] Berkeley Software Design, Inc. 181 182 Multics 1965 183 UNIX Summer 1969 184 DEC PDP-7 185 First Edition 1971-11-03 [QCU] 186 DEC PDP-11/20, Assembler 187 Second Edition 1972-06-12 [QCU] 188 10 UNIX installations 189 Third Edition 1973-02-xx [QCU] 190 Pipes, 16 installations 191 Fourth Edition 1973-11-xx [QCU] 192 rewriting in C effected, 193 above 30 installations 194 Fifth Edition 1974-06-xx [QCU] 195 above 50 installations 196 Sixth Edition 1975-05-xx [QCU] 197 port to DEC Vax 198 Seventh Edition 1979-01-xx [QCU] 199 first portable UNIX 200 Eighth Edition 1985-02-xx [QCU] 201 VAX 11/750, VAX 11/780 [dmr] 202 descended from 4.1c BSD [dmr] 203 descended from 4.1 BSD [44B] 204 scooping-out and replacement of the character-device 205 and networking part by the streams mechanism 206 207 Ninth Edition 1986-09-xx [QCU] 208 Tenth Edition 1989-10-xx [QCU] 209 210 1BSD late 1977 211 1978-03-09 [QCU] 212 PDP-11, Pascal, ex(1) 213 30 free copies of 1BSD sent out 214 35 tapes sold for 50 USD [QCU] 215 2BSD mid 1978 [QCU] 216 75 2BSD tapes shipped 217 2.7.9BSD ?? [SMS] 218 2.8BSD 1981-07-xx [KSJ] 219 220 2.8.1BSD 1982-01-xx [QCU] 221 set of performance improvements 222 2.9BSD 1983-07-xx [KSJ] 223 2.9.1BSD 1983-11-xx 224 2.9BSD-Seismo 1985-08-xx [SMS] 225 2.10BSD 1987-04-xx [KKK] 226 2.10.1BSD 1989-01-xx [SMS] 227 2.11BSD 1992-02-xx [SMS] 228 2.11BSD rev #430 1999-12-13 [SMS] 229 230 32V 1978-1[01]-xx [QCU] 231 3BSD late 1979 [QCU] 232 virtual memory, page replacement, 233 demand paging 234 4.0BSD 1980-10-xx 235 4.1BSD 1981-06-xx 236 4.1aBSD 1982-04-xx 237 alpha release, 100 sites, networking [44B] 238 4.1bBSD internal release, fast filesystem [44B] 239 4.1cBSD late 1982 240 beta release, IPC [44B] 241 4.2BSD 1983-09-xx [QCU] 242 4.3BSD 1986-06-xx [QCU] 243 1986-04-xx [KB] 244 4.3BSD Tahoe 1988-06-xx [QCU] 245 4.3BSD NET/1 1988-11-xx [QCU] 246 4.3BSD Reno 1990-06-xx [QCU], [DOC] 247 4.3BSD NET/2 1991-06-xx [QCU] 248 249 BSD/386 ALPHA 1991-12-xx [BSDI] 250 first code released to people outside BSDI 251 386BSD 0.0 1992-02-xx [DOC] 252 BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 253 BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 254 386BSD 0.1 1992-07-28 [DOC] 255 4.4BSD Alpha 1992-07-07 256 BSD/386 0.9.3 1992-10-xx [BSDI] 257 first external gamma; G customers 258 BSD/386 0.9.4 1992-12-xx [BSDI] 259 would have been 1.0 except for request 260 for preliminary injunction 261 BSD/386 1.0 1993-03-xx [BSDI] 262 injunction denied; first official release 263 NetBSD 0.8 1993-04-20 [NBD] 264 4.4BSD 1993-06-01 [USE] 265 NetBSD 0.9 1993-08-23 [NBD] 266 FreeBSD 1.0 1993-11-01 [FBD] 267 BSD/386 1.1 1994-02-xx [BSDI] 268 4.4BSD Lite 1994-03-01 [USE] 269 FreeBSD 1.1 1994-04-xx [FBD] 270 FreeBSD 1.1.5.1 1994-07-xx [FBD] 271 supersedes 1.1.5 3 days after release. 272 NetBSD 1.0 1994-10-26 [NBD] 273 386BSD 1.0 1994-11-12 [USE] 274 FreeBSD 2.0 1995-01-xx [FBD] 275 BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 276 FreeBSD 2.0.5 1995-06-10 [FBD] 277 BSD/OS 2.0.1 1995-06-xx [BSDI] 278 4.4BSD Lite Release 2 1995-06-xx [44B] 279 the true final distribution from the CSRG 280 FreeBSD 2.1.0 1995-11-19 [FBD] 281 NetBSD 1.1 1995-11-26 [NBD] 282 BSD/OS 2.1 1996-01-xx [BSDI] 283 FreeBSD 2.1.5 1996-07-14 [FBD] 284 NetBSD 1.2 1996-10-04 [NBD] 285 OpenBSD 2.0 1996-10-18 [OBD] 286 FreeBSD 2.1.6 1996-11-16 [FBD] 287 FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 288 FreeBSD 2.1.7 1997-02-20 [FBD] 289 BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 290 FreeBSD 2.2.0 1997-03-16 [FBD] 291 FreeBSD 2.2.1 1997-03-25 [FBD] 292 FreeBSD 2.2.2 1997-05-16 [FBD] 293 NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 294 OpenBSD 2.1 1997-06-01 [OBD] 295 FreeBSD 2.2.5 1997-10-22 [FBD] 296 OpenBSD 2.2 1997-12-01 [OBD] 297 NetBSD 1.3 1998-01-04 [NBD] 298 FreeBSD 2.2.6 1998-03-25 [FBD] 299 NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 300 BSD/OS 3.1 1998-03-xx [BSDI] 301 OpenBSD 2.3 1998-05-19 [OBD] 302 NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 303 FreeBSD 2.2.7 1998-07-22 [FBD] 304 BSD/OS 4.0 1998-08-xx [BSDI] 305 2-lock MP support, ELF executables 306 FreeBSD 3.0 1998-10-16 [FBD] 307 FreeBSD-3.0 is a snapshot from -current, 308 while 3.1 and 3.2 are from 3.x-stable which 309 was branched quite some time after 3.0-release 310 FreeBSD 2.2.8 1998-11-29 [FBD] 311 OpenBSD 2.4 1998-12-01 [OBD] 312 NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 313 FreeBSD 3.1 1999-02-15 [FBD] 314 BSD/OS 4.0.1 1999-03-xx [BSDI] 315 NetBSD 1.4 1999-05-12 [NBD] 316 FreeBSD 3.2 1999-05-17 [FBD] 317 OpenBSD 2.5 1999-05-19 [OBD] 318 NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 319 FreeBSD 3.3 1999-09-17 [FBD] 320 OpenBSD 2.6 1999-12-01 [OBD] 321 FreeBSD 3.4 1999-12-20 [FBD] 322 BSD/OS 4.1 1999-12-xx [BSDI] 323 FreeBSD 4.0 2000-03-13 [FBD] 324 NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 325 OpenBSD 2.7 2000-06-15 [OBD] 326 FreeBSD 3.5 2000-06-24 [FBD] 327 FreeBSD 4.1 2000-07-27 [FBD] 328 FreeBSD 3.5.1 2000-07-28 [FBD] 329 FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 330 FreeBSD 4.2 2000-11-21 [FBD] 331 NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 332 BSD/OS 4.2 2000-11-29 [BSDI] 333 OpenBSD 2.8 2000-12-01 [OBD] 334 NetBSD 1.5 2000-12-06 [NBD] 335 FreeBSD 4.3 2001-04-20 [FBD] 336 OpenBSD 2.9 2001-06-01 [OBD] 337 NetBSD 1.5.1 2001-06-11 [NBD] (patch release) 338 NetBSD 1.5.2 2001-08-17 [NBD] (patch release) 339 340 341 Bibliography 342 ------------------------ 343 344 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 345 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 346 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 347 348 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 349 Company, Inc., 1994. ISBN 0-201-54777-5 350 351 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 352 Quarterman. The Design and Implementation of the 4.4BSD Operating 353 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 354 355 Doug McIlroy. Research Unix Reader. 356 357 Michael G. Brown. The Role of BSD in the Development of Unix. 358 Presented to the Tasmanian Unix Special Interest Group of the 359 Australian Computer Society, Hobart, August 1993. 360 361 Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 362 URL: http://www.byte.com/art/9410/sec8/art3.htm (unreachable) 363 364 Andreas Klemm, Lars Kller. If you're going to San Francisco ... 365 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 366 367 BSD Release Announcements collection. 368 URL: http://www.de.FreeBSD.org/de/ftp/releases/ 369 370 BSD Hypertext Man Pages 371 URL: http://www.FreeBSD.org/cgi/man.cgi 372 373 UNIX history graphing project 374 URL: http://minnie.tuhs.org/Unix_History/index.html 375 376 UNIX history 377 URL: http://perso.wanadoo.fr/levenez/unix/ 378 379 James Howard: The BSD Family Tree 380 URL: http://www.daemonnews.org/200104/bsd_family.html 381 ("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 382 383 384 Acknowledgments 385 --------------- 386 387 Josh Gilliam for suggestions, bug fixes, and finding very old 388 original BSD announcements from Usenet or tapes. 389 390 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 391 392 -- 393 Copyright (c) 1997-2001 Wolfram Schneider <wosch (a] FreeBSD.ORG> 394 URL: ftp://ftp.freebsd.org/pub/FreeBSD/branches/-current/src/share/misc/bsd-family-tree 395 396 $FreeBSD: /c/ncvs/src/share/misc/bsd-family-tree,v 1.49 2001/07/11 23:57:16 itojun Exp $ 397 398 $NetBSD: bsd-family-tree,v 1.5.8.4 2001/11/25 20:29:54 he Exp $ 399
Indexes created Wed Nov 05 01:09:58 GMT 2025