bsd-family-tree revision 1.5.8.2
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 | v | | | | 114 | FreeBSD 2.2.8 | | | | 115 | | | | | 116 | | | OpenBSD 2.4 | 117 FreeBSD 3.0 | v | | 118 | | NetBSD 1.3.3 | | 119 *---FreeBSD 3.1 | | | 120 | | | | BSD/OS 4.0.1 121 | FreeBSD 3.2 NetBSD 1.4 OpenBSD 2.5 | 122 | | | | | | 123 | FreeBSD 3.3 | NetBSD 1.4.1 | | 124 | | | | OpenBSD 2.6 | 125 | FreeBSD 3.4 | | | | 126 | | | | | BSD/OS 4.1 127 FreeBSD 4.0 | | NetBSD 1.4.2 | | 128 | | | | | | 129 | | | | | | 130 | FreeBSD 3.5 | | OpenBSD 2.7 | 131 | | | | | | 132 | FreeBSD 3.5.1 | | | | 133 | | | | | 134 *---FreeBSD 4.1 | | | | 135 | | | | | | 136 | FreeBSD 4.1.1 | | | | 137 | | | v | | 138 | FreeBSD 4.2 | NetBSD 1.4.3 | | 139 | | | OpenBSD 2.8 BSD/OS 4.2 140 | v NetBSD 1.5 | | 141 | | | v 142 | | | 143 FreeBSD 5.0-current NetBSD -current OpenBSD -current 144 | | | 145 v v v 146 147 148 Time 149 ---------------- 150 151 Time tolerance +/- 6 months, depending on which book/article you read; if it 152 was the announcement in Usenet or if it was available as tape. 153 154 [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 155 and John Quarterman. The Design and Implementation of 156 the 4.4BSD Operating System. 157 [DOC] README, COPYRIGHT on tape. 158 [QCU] Salus, Peter H. A quarter century of UNIX. 159 [U25] Peter H. Salus. Unix at 25. 160 [USE] Usenet announcement. 161 [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 162 Changes in the Kernel in 2.9BSD. Second Berkeley Software 163 Distribution UNIX Version 2.9, July, 1983. 164 [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 165 Volume 11, Info 4, April, 1987. 166 [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 167 comp.bugs.4bsd.ucb-fixes, June 15, 1988. 168 [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 169 [FBD] FreeBSD Project, The. 170 [NBD] NetBSD Project, The. 171 [OBD] OpenBSD Project, The. 172 [dmr] Dennis Ritchie, via E-Mail 173 [BSDI] Berkeley Software Design, Inc. 174 175 Multics 1965 176 UNIX Summer 1969 177 DEC PDP-7 178 First Edition 1971-11-03 [QCU] 179 DEC PDP-11/20, Assembler 180 Second Edition 1972-06-12 [QCU] 181 10 UNIX installations 182 Third Edition 1973-02-xx [QCU] 183 Pipes, 16 installations 184 Fourth Edition 1973-11-xx [QCU] 185 rewriting in C effected, 186 above 30 installations 187 Fifth Edition 1974-06-xx [QCU] 188 above 50 installations 189 Sixth Edition 1975-05-xx [QCU] 190 port to DEC Vax 191 Seventh Edition 1979-01-xx [QCU] 192 first portable UNIX 193 Eighth Edition 1985-02-xx [QCU] 194 VAX 11/750, VAX 11/780 [dmr] 195 descended from 4.1c BSD [dmr] 196 descended from 4.1 BSD [44B] 197 scooping-out and replacement of the character-device 198 and networking part by the streams mechanism 199 200 Ninth Edition 1986-09-xx [QCU] 201 Tenth Edition 1989-10-xx [QCU] 202 203 1BSD late 1977 204 1978-03-09 [QCU] 205 PDP-11, Pascal, ex(1) 206 30 free copies of 1BSD sent out 207 35 tapes sold for 50 USD [QCU] 208 2BSD mid 1978 [QCU] 209 75 2BSD tapes shipped 210 2.7.9BSD ?? [SMS] 211 2.8BSD 1981-07-xx [KSJ] 212 213 2.8.1BSD 1982-01-xx [QCU] 214 set of performance improvements 215 2.9BSD 1983-07-xx [KSJ] 216 2.9.1BSD 1983-11-xx 217 2.9BSD-Seismo 1985-08-xx [SMS] 218 2.10BSD 1987-04-xx [KKK] 219 2.10.1BSD 1989-01-xx [SMS] 220 2.11BSD 1992-02-xx [SMS] 221 2.11BSD rev #430 1999-12-13 [SMS] 222 223 32V 1978-1[01]-xx [QCU] 224 3BSD late 1979 [QCU] 225 virtual memory, page replacement, 226 demand paging 227 4.0BSD 1980-10-xx 228 4.1BSD 1981-06-xx 229 4.1aBSD 1982-04-xx 230 alpha release, 100 sites, networking [44B] 231 4.1bBSD internal release, fast filesystem [44B] 232 4.1cBSD late 1982 233 beta release, IPC [44B] 234 4.2BSD 1983-09-xx [QCU] 235 4.3BSD 1986-06-xx [QCU] 236 1986-04-xx [KB] 237 4.3BSD Tahoe 1988-06-xx [QCU] 238 4.3BSD NET/1 1988-11-xx [QCU] 239 4.3BSD Reno 1990-06-xx [QCU], [DOC] 240 4.3BSD NET/2 1991-06-xx [QCU] 241 242 BSD/386 ALPHA 1991-12-xx [BSDI] 243 first code released to people outside BSDI 244 386BSD 0.0 1992-02-xx [DOC] 245 BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 246 BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 247 386BSD 0.1 1992-07-28 [DOC] 248 4.4BSD Alpha 1992-07-07 249 BSD/386 0.9.3 1992-10-xx [BSDI] 250 first external gamma; G customers 251 BSD/386 0.9.4 1992-12-xx [BSDI] 252 would have been 1.0 except for request 253 for preliminary injunction 254 BSD/386 1.0 1993-03-xx [BSDI] 255 injunction denied; first official release 256 NetBSD 0.8 1993-04-20 [NBD] 257 4.4BSD 1993-06-01 [USE] 258 NetBSD 0.9 1993-08-23 [NBD] 259 FreeBSD 1.0 1993-11-xx [FOO] 260 BSD/386 1.1 1994-02-xx [BSDI] 261 4.4BSD Lite 1994-03-01 [USE] 262 FreeBSD 1.1 1994-04-xx [FBD] 263 FreeBSD 1.1.5.1 1994-07-xx [FBD] 264 supersedes 1.1.5 3 days after release. 265 NetBSD 1.0 1994-10-26 [NBD] 266 386BSD 1.0 1994-11-12 [USE] 267 FreeBSD 2.0 1995-01-xx [FBD] 268 BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 269 FreeBSD 2.0.5 1995-06-10 [FBD] 270 BSD/OS 2.0.1 1995-06-xx [BSDI] 271 4.4BSD Lite Release 2 1995-06-xx [44B] 272 the true final distribution from the CSRG 273 FreeBSD 2.1.0 1995-11-19 [FBD] 274 NetBSD 1.1 1995-11-26 [NBD] 275 BSD/OS 2.1 1996-01-xx [BSDI] 276 FreeBSD 2.1.5 1996-07-14 [FBD] 277 NetBSD 1.2 1996-10-04 [NBD] 278 OpenBSD 2.0 1996-10-18 [OBD] 279 FreeBSD 2.1.6 1996-11-16 [FBD] 280 FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 281 FreeBSD 2.1.7 1997-02-20 [FBD] 282 BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 283 FreeBSD 2.2.0 1997-03-16 [FBD] 284 FreeBSD 2.2.1 1997-03-25 [FBD] 285 FreeBSD 2.2.2 1997-05-16 [FBD] 286 NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 287 OpenBSD 2.1 1997-06-01 [OBD] 288 FreeBSD 2.2.5 1997-10-22 [FBD] 289 OpenBSD 2.2 1997-12-01 [OBD] 290 NetBSD 1.3 1998-01-04 [NBD] 291 FreeBSD 2.2.6 1998-03-25 [FBD] 292 NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 293 BSD/OS 3.1 1998-03-xx [BSDI] 294 OpenBSD 2.3 1998-05-19 [OBD] 295 NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 296 FreeBSD 2.2.7 1998-07-22 [FBD] 297 BSD/OS 4.0 1998-08-xx [BSDI] 298 2-lock MP support, ELF executables 299 FreeBSD 3.0 1998-10-16 [FBD] 300 FreeBSD-3.0 is a snapshot from -current, 301 while 3.1 and 3.2 are from 3.x-stable which 302 was branched quite some time after 3.0-release 303 FreeBSD 2.2.8 1998-11-29 [FBD] 304 OpenBSD 2.4 1998-12-01 [OBD] 305 NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 306 FreeBSD 3.1 1999-02-15 [FBD] 307 BSD/OS 4.0.1 1999-03-xx [BSDI] 308 NetBSD 1.4 1999-05-12 [NBD] 309 FreeBSD 3.2 1999-05-17 [FBD] 310 OpenBSD 2.5 1999-05-19 [OBD] 311 NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 312 FreeBSD 3.3 1999-09-17 [FBD] 313 OpenBSD 2.6 1999-12-01 [OBD] 314 FreeBSD 3.4 1999-12-20 [FBD] 315 BSD/OS 4.1 1999-12-xx [BSDI] 316 FreeBSD 4.0 2000-03-13 [FBD] 317 NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 318 OpenBSD 2.7 2000-06-15 [OBD] 319 FreeBSD 3.5 2000-06-24 [FBD] 320 FreeBSD 4.1 2000-07-27 [FBD] 321 FreeBSD 3.5.1 2000-07-28 [FBD] 322 FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 323 FreeBSD 4.2 2000-11-21 [FBD] 324 NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 325 BSD/OS 4.2 2000-11-29 [BSDI] 326 OpenBSD 2.8 2000-12-01 [OBD] 327 NetBSD 1.5 2000-12-06 [NBD] 328 329 330 Bibliography 331 ------------------------ 332 333 Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 334 Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 335 System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 336 337 Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 338 Company, Inc., 1994. ISBN 0-201-54777-5 339 340 McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 341 Quarterman. The Design and Implementation of the 4.4BSD Operating 342 System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 343 344 Doug McIlroy. Research Unix Reader. 345 346 Michael G. Brown. The Role of BSD in the Development of Unix. 347 Presented to the Tasmanian Unix Special Interest Group of the 348 Australian Computer Society, Hobart, August 1993. 349 350 Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 351 URL: http://www.byte.com/art/9410/sec8/art3.htm 352 353 Andreas Klemm, Lars Kller. If you're going to San Francisco ... 354 Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 355 356 BSD Release Announcements collection. 357 URL: http://www.de.FreeBSD.org/de/ftp/releases/ 358 359 BSD Hypertext Man Pages 360 http://www.FreeBSD.org/cgi/man.cgi 361 362 UNIX history graphing project 363 http://minnie.cs.adfa.edu.au/Unix_History/index.html 364 365 UNIX history 366 http://perso.wanadoo.fr/levenez/unix/ 367 368 Acknowledgments 369 --------------- 370 371 Josh Gilliam for suggestions, bug fixes, and finding very old 372 original BSD announcements from Usenet or tapes. 373 374 Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 375 376 -- 377 Copyright (c) 1997-2000 Wolfram Schneider <wosch (a] FreeBSD.ORG> 378 URL: ftp://ftp.freebsd.org/pub/FreeBSD/branches/-current/src/share/misc/bsd-family-tree 379 380 $FreeBSD: src/share/misc/bsd-family-tree,v 1.38 2001/01/19 07:36:36 itojun Exp $ 381 382 $NetBSD: bsd-family-tree,v 1.5.8.2 2001/02/03 18:32:32 he Exp $ 383
Indexes created Wed Nov 05 01:09:58 GMT 2025