bsd-family-tree revision 1.9
1 1.6 itojun The UNIX system family tree: Research and BSD 2 1.6 itojun --------------------------------------------- 3 1.1 abs 4 1.1 abs First Edition (V1) 5 1.1 abs | 6 1.1 abs Second Edition (V2) 7 1.1 abs | 8 1.1 abs Third Edition (V3) 9 1.1 abs | 10 1.1 abs Fourth Edition (V4) 11 1.1 abs | 12 1.1 abs Fifth Edition (V5) 13 1.1 abs | 14 1.1 abs Sixth Edition (V6) -----* 15 1.1 abs \ | 16 1.1 abs \ | 17 1.1 abs \ | 18 1.1 abs Seventh Edition (V7) | 19 1.1 abs \ | 20 1.1 abs \ 1BSD 21 1.1 abs 32V | 22 1.1 abs \ 2BSD---------------* 23 1.1 abs \ / | 24 1.1 abs \ / | 25 1.1 abs \/ | 26 1.1 abs 3BSD | 27 1.1 abs | | 28 1.1 abs 4.0BSD 2.7.9BSD 29 1.1 abs | | 30 1.6 itojun 4.1BSD --------------> 2.8BSD 31 1.6 itojun | | 32 1.6 itojun 4.1aBSD -----------\ | 33 1.6 itojun | \ | 34 1.6 itojun 4.1bBSD \ | 35 1.6 itojun | \ | 36 1.6 itojun *------ 4.1cBSD --------------> 2.9BSD 37 1.6 itojun / | | 38 1.6 itojun Eighth Edition | 2.9BSD-Seismo 39 1.1 abs | | | 40 1.1 abs +----<--- 4.2BSD 2.9.1BSD 41 1.1 abs | | | 42 1.1 abs +----<--- 4.3BSD -------------> 2.10BSD 43 1.1 abs | | / | 44 1.1 abs Ninth Edition | / 2.10.1BSD 45 1.1 abs | 4.3BSD Tahoe-----+ | 46 1.1 abs | | \ | 47 1.1 abs | | \ | 48 1.1 abs v | 2.11BSD 49 1.1 abs Tenth Edition | | 50 1.6 itojun | 2.11BSD rev #430 51 1.1 abs 4.3BSD NET/1 | 52 1.1 abs | v 53 1.1 abs 4.3BSD Reno 54 1.1 abs | 55 1.1 abs *---------- 4.3BSD NET/2 -------------------+-------------* 56 1.1 abs | | | | 57 1.7 itojun 386BSD 0.0 | | BSD/386 ALPHA 58 1.1 abs | | | | 59 1.7 itojun 386BSD 0.1 ------------>+ | BSD/386 0.3.[13] 60 1.1 abs | \ | 4.4BSD Alpha | 61 1.7 itojun | 386BSD 1.0 | | BSD/386 0.9.[34] 62 1.1 abs | | 4.4BSD | 63 1.1 abs | | / | | 64 1.1 abs | | 4.4BSD-Encumbered | | 65 1.7 itojun | NetBSD 0.8 | BSD/386 1.0 66 1.1 abs | | | | 67 1.7 itojun FreeBSD 1.0 NetBSD 0.9 | BSD/386 1.1 68 1.7 itojun | | .----- 4.4BSD Lite | 69 1.7 itojun FreeBSD 1.1 | / / | \ | 70 1.7 itojun | | / / | \ | 71 1.7 itojun FreeBSD 1.1.5 .---|--------' / | \ | 72 1.7 itojun | / | / | \ | 73 1.7 itojun FreeBSD 1.1.5.1 / | / | \ | 74 1.7 itojun | / NetBSD 1.0 <-' | \ | 75 1.7 itojun | / | | \ | 76 1.7 itojun FreeBSD 2.0 <--' | | BSD/OS 2.0 77 1.7 itojun | \ | | 78 1.7 itojun FreeBSD 2.0.5 \ | BSD/OS 2.0.1 79 1.7 itojun | \ .--- 4.4BSD Lite2 | 80 1.7 itojun | \ | | | | | 81 1.7 itojun | | FreeBSD 3.0 | | | | 82 1.7 itojun | | NetBSD 1.3 | | | 83 1.7 itojun | | OpenBSD 2.3 | | 84 1.7 itojun | | BSD/OS 3.0 | 85 1.7 itojun FreeBSD 2.1 | | 86 1.7 itojun | | NetBSD 1.1 ------. BSD/OS 2.1 87 1.7 itojun | FreeBSD 2.1.5 | \ | 88 1.7 itojun | | NetBSD 1.2 \ BSD/OS 3.0 89 1.7 itojun | FreeBSD 2.1.6 | \ OpenBSD 2.0 | 90 1.7 itojun | | | \ | | 91 1.7 itojun | FreeBSD 2.1.6.1 | \ | | 92 1.7 itojun | | | \ | | 93 1.7 itojun | FreeBSD 2.1.7 | | | | 94 1.7 itojun | | | NetBSD 1.2.1 | | 95 1.7 itojun | FreeBSD 2.1.7.1 | | | 96 1.7 itojun | | | | 97 1.7 itojun | | | | 98 1.7 itojun *-FreeBSD 2.2 | | | 99 1.7 itojun | \ | | | 100 1.7 itojun | FreeBSD 2.2.1 | | | 101 1.7 itojun | | | | | 102 1.7 itojun | FreeBSD 2.2.2 | OpenBSD 2.1 | 103 1.7 itojun | | | | | 104 1.7 itojun | FreeBSD 2.2.5 | | | 105 1.7 itojun | | | OpenBSD 2.2 | 106 1.7 itojun | | NetBSD 1.3 | | 107 1.7 itojun | FreeBSD 2.2.6 | | | | 108 1.7 itojun | | | NetBSD 1.3.1 | BSD/OS 3.1 109 1.7 itojun | | | | OpenBSD 2.3 | 110 1.7 itojun | | | NetBSD 1.3.2 | | 111 1.7 itojun | FreeBSD 2.2.7 | | | | 112 1.7 itojun | | | | | BSD/OS 4.0 113 1.7 itojun | v | | | | 114 1.7 itojun | FreeBSD 2.2.8 | | | | 115 1.7 itojun | | | | | 116 1.7 itojun | | | OpenBSD 2.4 | 117 1.7 itojun FreeBSD 3.0 | v | | 118 1.7 itojun | | NetBSD 1.3.3 | | 119 1.7 itojun *---FreeBSD 3.1 | | | 120 1.7 itojun | | | | BSD/OS 4.0.1 121 1.7 itojun | FreeBSD 3.2 NetBSD 1.4 OpenBSD 2.5 | 122 1.7 itojun | | | | | | 123 1.7 itojun | FreeBSD 3.3 | NetBSD 1.4.1 | | 124 1.7 itojun | | | | OpenBSD 2.6 | 125 1.7 itojun | FreeBSD 3.4 | | | | 126 1.7 itojun | | | | | BSD/OS 4.1 127 1.7 itojun FreeBSD 4.0 | | NetBSD 1.4.2 | | 128 1.7 itojun | | | | | | 129 1.7 itojun | | | | | | 130 1.7 itojun | FreeBSD 3.5 | | OpenBSD 2.7 | 131 1.7 itojun | | | | | | 132 1.7 itojun | FreeBSD 3.5.1 | | | | 133 1.7 itojun | | | | | 134 1.7 itojun *---FreeBSD 4.1 | | | | 135 1.7 itojun | | | | | | 136 1.7 itojun | FreeBSD 4.1.1 | | | | 137 1.7 itojun | | | v | | 138 1.7 itojun | FreeBSD 4.2 | NetBSD 1.4.3 | | 139 1.7 itojun | | | OpenBSD 2.8 BSD/OS 4.2 140 1.8 itojun | | NetBSD 1.5 | | 141 1.8 itojun | FreeBSD 4.3 | | | v 142 1.8 itojun | | | v OpenBSD 2.9 143 1.8 itojun | | | NetBSD 1.5.1 | 144 1.8 itojun | v | | 145 1.6 itojun | | | 146 1.6 itojun FreeBSD 5.0-current NetBSD -current OpenBSD -current 147 1.6 itojun | | | 148 1.6 itojun v v v 149 1.1 abs 150 1.1 abs 151 1.1 abs Time 152 1.1 abs ---------------- 153 1.1 abs 154 1.7 itojun Time tolerance +/- 6 months, depending on which book/article you read; if it 155 1.7 itojun was the announcement in Usenet or if it was available as tape. 156 1.1 abs 157 1.1 abs [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 158 1.1 abs and John Quarterman. The Design and Implementation of 159 1.1 abs the 4.4BSD Operating System. 160 1.1 abs [DOC] README, COPYRIGHT on tape. 161 1.1 abs [QCU] Salus, Peter H. A quarter century of UNIX. 162 1.1 abs [U25] Peter H. Salus. Unix at 25. 163 1.1 abs [USE] Usenet announcement. 164 1.1 abs [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 165 1.1 abs Changes in the Kernel in 2.9BSD. Second Berkeley Software 166 1.1 abs Distribution UNIX Version 2.9, July, 1983. 167 1.1 abs [KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 168 1.1 abs Volume 11, Info 4, April, 1987. 169 1.1 abs [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 170 1.1 abs comp.bugs.4bsd.ucb-fixes, June 15, 1988. 171 1.1 abs [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 172 1.1 abs [FBD] FreeBSD Project, The. 173 1.1 abs [NBD] NetBSD Project, The. 174 1.1 abs [OBD] OpenBSD Project, The. 175 1.1 abs [dmr] Dennis Ritchie, via E-Mail 176 1.7 itojun [BSDI] Berkeley Software Design, Inc. 177 1.1 abs 178 1.1 abs Multics 1965 179 1.6 itojun UNIX Summer 1969 180 1.1 abs DEC PDP-7 181 1.1 abs First Edition 1971-11-03 [QCU] 182 1.1 abs DEC PDP-11/20, Assembler 183 1.1 abs Second Edition 1972-06-12 [QCU] 184 1.6 itojun 10 UNIX installations 185 1.1 abs Third Edition 1973-02-xx [QCU] 186 1.1 abs Pipes, 16 installations 187 1.1 abs Fourth Edition 1973-11-xx [QCU] 188 1.1 abs rewriting in C effected, 189 1.1 abs above 30 installations 190 1.1 abs Fifth Edition 1974-06-xx [QCU] 191 1.1 abs above 50 installations 192 1.1 abs Sixth Edition 1975-05-xx [QCU] 193 1.1 abs port to DEC Vax 194 1.1 abs Seventh Edition 1979-01-xx [QCU] 195 1.6 itojun first portable UNIX 196 1.6 itojun Eighth Edition 1985-02-xx [QCU] 197 1.1 abs VAX 11/750, VAX 11/780 [dmr] 198 1.1 abs descended from 4.1c BSD [dmr] 199 1.1 abs descended from 4.1 BSD [44B] 200 1.7 itojun scooping-out and replacement of the character-device 201 1.1 abs and networking part by the streams mechanism 202 1.1 abs 203 1.1 abs Ninth Edition 1986-09-xx [QCU] 204 1.1 abs Tenth Edition 1989-10-xx [QCU] 205 1.1 abs 206 1.1 abs 1BSD late 1977 207 1.1 abs 1978-03-09 [QCU] 208 1.1 abs PDP-11, Pascal, ex(1) 209 1.1 abs 30 free copies of 1BSD sent out 210 1.1 abs 35 tapes sold for 50 USD [QCU] 211 1.1 abs 2BSD mid 1978 [QCU] 212 1.1 abs 75 2BSD tapes shipped 213 1.1 abs 2.7.9BSD ?? [SMS] 214 1.1 abs 2.8BSD 1981-07-xx [KSJ] 215 1.1 abs 216 1.1 abs 2.8.1BSD 1982-01-xx [QCU] 217 1.1 abs set of performance improvements 218 1.1 abs 2.9BSD 1983-07-xx [KSJ] 219 1.1 abs 2.9.1BSD 1983-11-xx 220 1.1 abs 2.9BSD-Seismo 1985-08-xx [SMS] 221 1.1 abs 2.10BSD 1987-04-xx [KKK] 222 1.1 abs 2.10.1BSD 1989-01-xx [SMS] 223 1.1 abs 2.11BSD 1992-02-xx [SMS] 224 1.6 itojun 2.11BSD rev #430 1999-12-13 [SMS] 225 1.1 abs 226 1.1 abs 32V 1978-1[01]-xx [QCU] 227 1.1 abs 3BSD late 1979 [QCU] 228 1.1 abs virtual memory, page replacement, 229 1.1 abs demand paging 230 1.1 abs 4.0BSD 1980-10-xx 231 1.1 abs 4.1BSD 1981-06-xx 232 1.1 abs 4.1aBSD 1982-04-xx 233 1.1 abs alpha release, 100 sites, networking [44B] 234 1.1 abs 4.1bBSD internal release, fast filesystem [44B] 235 1.1 abs 4.1cBSD late 1982 236 1.1 abs beta release, IPC [44B] 237 1.1 abs 4.2BSD 1983-09-xx [QCU] 238 1.1 abs 4.3BSD 1986-06-xx [QCU] 239 1.1 abs 1986-04-xx [KB] 240 1.1 abs 4.3BSD Tahoe 1988-06-xx [QCU] 241 1.1 abs 4.3BSD NET/1 1988-11-xx [QCU] 242 1.1 abs 4.3BSD Reno 1990-06-xx [QCU], [DOC] 243 1.1 abs 4.3BSD NET/2 1991-06-xx [QCU] 244 1.7 itojun 245 1.7 itojun BSD/386 ALPHA 1991-12-xx [BSDI] 246 1.7 itojun first code released to people outside BSDI 247 1.1 abs 386BSD 0.0 1992-02-xx [DOC] 248 1.7 itojun BSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 249 1.7 itojun BSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 250 1.7 itojun 386BSD 0.1 1992-07-28 [DOC] 251 1.1 abs 4.4BSD Alpha 1992-07-07 252 1.7 itojun BSD/386 0.9.3 1992-10-xx [BSDI] 253 1.7 itojun first external gamma; G customers 254 1.7 itojun BSD/386 0.9.4 1992-12-xx [BSDI] 255 1.7 itojun would have been 1.0 except for request 256 1.7 itojun for preliminary injunction 257 1.7 itojun BSD/386 1.0 1993-03-xx [BSDI] 258 1.7 itojun injunction denied; first official release 259 1.6 itojun NetBSD 0.8 1993-04-20 [NBD] 260 1.1 abs 4.4BSD 1993-06-01 [USE] 261 1.1 abs NetBSD 0.9 1993-08-23 [NBD] 262 1.8 itojun FreeBSD 1.0 1993-11-01 [FBD] 263 1.7 itojun BSD/386 1.1 1994-02-xx [BSDI] 264 1.1 abs 4.4BSD Lite 1994-03-01 [USE] 265 1.6 itojun FreeBSD 1.1 1994-04-xx [FBD] 266 1.6 itojun FreeBSD 1.1.5.1 1994-07-xx [FBD] 267 1.6 itojun supersedes 1.1.5 3 days after release. 268 1.6 itojun NetBSD 1.0 1994-10-26 [NBD] 269 1.1 abs 386BSD 1.0 1994-11-12 [USE] 270 1.6 itojun FreeBSD 2.0 1995-01-xx [FBD] 271 1.7 itojun BSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 272 1.7 itojun FreeBSD 2.0.5 1995-06-10 [FBD] 273 1.7 itojun BSD/OS 2.0.1 1995-06-xx [BSDI] 274 1.6 itojun 4.4BSD Lite Release 2 1995-06-xx [44B] 275 1.6 itojun the true final distribution from the CSRG 276 1.7 itojun FreeBSD 2.1.0 1995-11-19 [FBD] 277 1.1 abs NetBSD 1.1 1995-11-26 [NBD] 278 1.7 itojun BSD/OS 2.1 1996-01-xx [BSDI] 279 1.7 itojun FreeBSD 2.1.5 1996-07-14 [FBD] 280 1.1 abs NetBSD 1.2 1996-10-04 [NBD] 281 1.1 abs OpenBSD 2.0 1996-10-18 [OBD] 282 1.7 itojun FreeBSD 2.1.6 1996-11-16 [FBD] 283 1.7 itojun FreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 284 1.7 itojun FreeBSD 2.1.7 1997-02-20 [FBD] 285 1.7 itojun BSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 286 1.7 itojun FreeBSD 2.2.0 1997-03-16 [FBD] 287 1.7 itojun FreeBSD 2.2.1 1997-03-25 [FBD] 288 1.7 itojun FreeBSD 2.2.2 1997-05-16 [FBD] 289 1.6 itojun NetBSD 1.2.1 1997-05-20 [NBD] (patch release) 290 1.1 abs OpenBSD 2.1 1997-06-01 [OBD] 291 1.7 itojun FreeBSD 2.2.5 1997-10-22 [FBD] 292 1.1 abs OpenBSD 2.2 1997-12-01 [OBD] 293 1.5 abs NetBSD 1.3 1998-01-04 [NBD] 294 1.7 itojun FreeBSD 2.2.6 1998-03-25 [FBD] 295 1.6 itojun NetBSD 1.3.1 1998-03-09 [NBD] (patch release) 296 1.7 itojun BSD/OS 3.1 1998-03-xx [BSDI] 297 1.1 abs OpenBSD 2.3 1998-05-19 [OBD] 298 1.6 itojun NetBSD 1.3.2 1998-05-29 [NBD] (patch release) 299 1.7 itojun FreeBSD 2.2.7 1998-07-22 [FBD] 300 1.7 itojun BSD/OS 4.0 1998-08-xx [BSDI] 301 1.7 itojun 2-lock MP support, ELF executables 302 1.6 itojun FreeBSD 3.0 1998-10-16 [FBD] 303 1.7 itojun FreeBSD-3.0 is a snapshot from -current, 304 1.7 itojun while 3.1 and 3.2 are from 3.x-stable which 305 1.6 itojun was branched quite some time after 3.0-release 306 1.1 abs FreeBSD 2.2.8 1998-11-29 [FBD] 307 1.1 abs OpenBSD 2.4 1998-12-01 [OBD] 308 1.6 itojun NetBSD 1.3.3 1998-12-23 [NBD] (patch release) 309 1.6 itojun FreeBSD 3.1 1999-02-15 [FBD] 310 1.7 itojun BSD/OS 4.0.1 1999-03-xx [BSDI] 311 1.4 abs NetBSD 1.4 1999-05-12 [NBD] 312 1.6 itojun FreeBSD 3.2 1999-05-17 [FBD] 313 1.4 abs OpenBSD 2.5 1999-05-19 [OBD] 314 1.6 itojun NetBSD 1.4.1 1999-08-26 [NBD] (patch release) 315 1.6 itojun FreeBSD 3.3 1999-09-17 [FBD] 316 1.6 itojun OpenBSD 2.6 1999-12-01 [OBD] 317 1.6 itojun FreeBSD 3.4 1999-12-20 [FBD] 318 1.7 itojun BSD/OS 4.1 1999-12-xx [BSDI] 319 1.6 itojun FreeBSD 4.0 2000-03-13 [FBD] 320 1.6 itojun NetBSD 1.4.2 2000-03-19 [NBD] (patch release) 321 1.6 itojun OpenBSD 2.7 2000-06-15 [OBD] 322 1.6 itojun FreeBSD 3.5 2000-06-24 [FBD] 323 1.6 itojun FreeBSD 4.1 2000-07-27 [FBD] 324 1.6 itojun FreeBSD 3.5.1 2000-07-28 [FBD] 325 1.6 itojun FreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 326 1.7 itojun FreeBSD 4.2 2000-11-21 [FBD] 327 1.7 itojun NetBSD 1.4.3 2000-11-25 [NBD] (patch release) 328 1.7 itojun BSD/OS 4.2 2000-11-29 [BSDI] 329 1.7 itojun OpenBSD 2.8 2000-12-01 [OBD] 330 1.7 itojun NetBSD 1.5 2000-12-06 [NBD] 331 1.8 itojun FreeBSD 4.3 2001-04-20 [FBD] 332 1.8 itojun OpenBSD 2.9 2001-06-01 [OBD] 333 1.9 itojun NetBSD 1.5.1 2001-07-11 [NBD] (patch release) 334 1.1 abs 335 1.1 abs 336 1.1 abs Bibliography 337 1.1 abs ------------------------ 338 1.1 abs 339 1.1 abs Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 340 1.1 abs Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating 341 1.1 abs System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 342 1.1 abs 343 1.1 abs Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 344 1.1 abs Company, Inc., 1994. ISBN 0-201-54777-5 345 1.1 abs 346 1.1 abs McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 347 1.1 abs Quarterman. The Design and Implementation of the 4.4BSD Operating 348 1.1 abs System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 349 1.1 abs 350 1.1 abs Doug McIlroy. Research Unix Reader. 351 1.1 abs 352 1.1 abs Michael G. Brown. The Role of BSD in the Development of Unix. 353 1.1 abs Presented to the Tasmanian Unix Special Interest Group of the 354 1.1 abs Australian Computer Society, Hobart, August 1993. 355 1.1 abs 356 1.6 itojun Peter H. Salus. Unix at 25. Byte Magazine, October 1994. 357 1.9 itojun URL: http://www.byte.com/art/9410/sec8/art3.htm (unreachable) 358 1.1 abs 359 1.1 abs Andreas Klemm, Lars Kller. If you're going to San Francisco ... 360 1.1 abs Die freien BSD-Varianten von Unix. c't April 1997, page 368ff. 361 1.1 abs 362 1.1 abs BSD Release Announcements collection. 363 1.6 itojun URL: http://www.de.FreeBSD.org/de/ftp/releases/ 364 1.1 abs 365 1.1 abs BSD Hypertext Man Pages 366 1.9 itojun URL: http://www.FreeBSD.org/cgi/man.cgi 367 1.6 itojun 368 1.6 itojun UNIX history graphing project 369 1.9 itojun URL: http://minnie.tuhs.org/Unix_History/index.html 370 1.6 itojun 371 1.6 itojun UNIX history 372 1.9 itojun URL: http://perso.wanadoo.fr/levenez/unix/ 373 1.1 abs 374 1.8 itojun James Howard: The BSD Family Tree 375 1.9 itojun URL: http://www.daemonnews.org/200104/bsd_family.html 376 1.8 itojun ("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 377 1.8 itojun 378 1.8 itojun 379 1.1 abs Acknowledgments 380 1.1 abs --------------- 381 1.1 abs 382 1.6 itojun Josh Gilliam for suggestions, bug fixes, and finding very old 383 1.1 abs original BSD announcements from Usenet or tapes. 384 1.1 abs 385 1.1 abs Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 386 1.1 abs 387 1.1 abs -- 388 1.8 itojun Copyright (c) 1997-2001 Wolfram Schneider <wosch (a] FreeBSD.ORG> 389 1.7 itojun URL: ftp://ftp.freebsd.org/pub/FreeBSD/branches/-current/src/share/misc/bsd-family-tree 390 1.1 abs 391 1.9 itojun $FreeBSD: /c/ncvs/src/share/misc/bsd-family-tree,v 1.49 2001/07/11 23:57:16 itojun Exp $ 392 1.1 abs 393 1.9 itojun $NetBSD: bsd-family-tree,v 1.9 2001/07/12 00:01:15 itojun Exp $ 394
Indexes created Wed Nov 05 19:10:08 GMT 2025