bsd-family-tree revision 1.8
11.6SitojunThe UNIX system family tree: Research and BSD 21.6Sitojun--------------------------------------------- 31.1Sabs 41.1SabsFirst Edition (V1) 51.1Sabs | 61.1SabsSecond Edition (V2) 71.1Sabs | 81.1SabsThird Edition (V3) 91.1Sabs | 101.1SabsFourth Edition (V4) 111.1Sabs | 121.1SabsFifth Edition (V5) 131.1Sabs | 141.1SabsSixth Edition (V6) -----* 151.1Sabs \ | 161.1Sabs \ | 171.1Sabs \ | 181.1SabsSeventh Edition (V7) | 191.1Sabs \ | 201.1Sabs \ 1BSD 211.1Sabs 32V | 221.1Sabs \ 2BSD---------------* 231.1Sabs \ / | 241.1Sabs \ / | 251.1Sabs \/ | 261.1Sabs 3BSD | 271.1Sabs | | 281.1Sabs 4.0BSD 2.7.9BSD 291.1Sabs | | 301.6Sitojun 4.1BSD --------------> 2.8BSD 311.6Sitojun | | 321.6Sitojun 4.1aBSD -----------\ | 331.6Sitojun | \ | 341.6Sitojun 4.1bBSD \ | 351.6Sitojun | \ | 361.6Sitojun *------ 4.1cBSD --------------> 2.9BSD 371.6Sitojun / | | 381.6SitojunEighth Edition | 2.9BSD-Seismo 391.1Sabs | | | 401.1Sabs +----<--- 4.2BSD 2.9.1BSD 411.1Sabs | | | 421.1Sabs +----<--- 4.3BSD -------------> 2.10BSD 431.1Sabs | | / | 441.1SabsNinth Edition | / 2.10.1BSD 451.1Sabs | 4.3BSD Tahoe-----+ | 461.1Sabs | | \ | 471.1Sabs | | \ | 481.1Sabs v | 2.11BSD 491.1SabsTenth Edition | | 501.6Sitojun | 2.11BSD rev #430 511.1Sabs 4.3BSD NET/1 | 521.1Sabs | v 531.1Sabs 4.3BSD Reno 541.1Sabs | 551.1Sabs *---------- 4.3BSD NET/2 -------------------+-------------* 561.1Sabs | | | | 571.7Sitojun386BSD 0.0 | | BSD/386 ALPHA 581.1Sabs | | | | 591.7Sitojun386BSD 0.1 ------------>+ | BSD/386 0.3.[13] 601.1Sabs | \ | 4.4BSD Alpha | 611.7Sitojun | 386BSD 1.0 | | BSD/386 0.9.[34] 621.1Sabs | | 4.4BSD | 631.1Sabs | | / | | 641.1Sabs | | 4.4BSD-Encumbered | | 651.7Sitojun | NetBSD 0.8 | BSD/386 1.0 661.1Sabs | | | | 671.7SitojunFreeBSD 1.0 NetBSD 0.9 | BSD/386 1.1 681.7Sitojun | | .----- 4.4BSD Lite | 691.7SitojunFreeBSD 1.1 | / / | \ | 701.7Sitojun | | / / | \ | 711.7SitojunFreeBSD 1.1.5 .---|--------' / | \ | 721.7Sitojun | / | / | \ | 731.7SitojunFreeBSD 1.1.5.1 / | / | \ | 741.7Sitojun | / NetBSD 1.0 <-' | \ | 751.7Sitojun | / | | \ | 761.7SitojunFreeBSD 2.0 <--' | | BSD/OS 2.0 771.7Sitojun | \ | | 781.7SitojunFreeBSD 2.0.5 \ | BSD/OS 2.0.1 791.7Sitojun | \ .--- 4.4BSD Lite2 | 801.7Sitojun | \ | | | | | 811.7Sitojun | | FreeBSD 3.0 | | | | 821.7Sitojun | | NetBSD 1.3 | | | 831.7Sitojun | | OpenBSD 2.3 | | 841.7Sitojun | | BSD/OS 3.0 | 851.7SitojunFreeBSD 2.1 | | 861.7Sitojun | | NetBSD 1.1 ------. BSD/OS 2.1 871.7Sitojun | FreeBSD 2.1.5 | \ | 881.7Sitojun | | NetBSD 1.2 \ BSD/OS 3.0 891.7Sitojun | FreeBSD 2.1.6 | \ OpenBSD 2.0 | 901.7Sitojun | | | \ | | 911.7Sitojun | FreeBSD 2.1.6.1 | \ | | 921.7Sitojun | | | \ | | 931.7Sitojun | FreeBSD 2.1.7 | | | | 941.7Sitojun | | | NetBSD 1.2.1 | | 951.7Sitojun | FreeBSD 2.1.7.1 | | | 961.7Sitojun | | | | 971.7Sitojun | | | | 981.7Sitojun *-FreeBSD 2.2 | | | 991.7Sitojun | \ | | | 1001.7Sitojun | FreeBSD 2.2.1 | | | 1011.7Sitojun | | | | | 1021.7Sitojun | FreeBSD 2.2.2 | OpenBSD 2.1 | 1031.7Sitojun | | | | | 1041.7Sitojun | FreeBSD 2.2.5 | | | 1051.7Sitojun | | | OpenBSD 2.2 | 1061.7Sitojun | | NetBSD 1.3 | | 1071.7Sitojun | FreeBSD 2.2.6 | | | | 1081.7Sitojun | | | NetBSD 1.3.1 | BSD/OS 3.1 1091.7Sitojun | | | | OpenBSD 2.3 | 1101.7Sitojun | | | NetBSD 1.3.2 | | 1111.7Sitojun | FreeBSD 2.2.7 | | | | 1121.7Sitojun | | | | | BSD/OS 4.0 1131.7Sitojun | v | | | | 1141.7Sitojun | FreeBSD 2.2.8 | | | | 1151.7Sitojun | | | | | 1161.7Sitojun | | | OpenBSD 2.4 | 1171.7SitojunFreeBSD 3.0 | v | | 1181.7Sitojun | | NetBSD 1.3.3 | | 1191.7Sitojun *---FreeBSD 3.1 | | | 1201.7Sitojun | | | | BSD/OS 4.0.1 1211.7Sitojun | FreeBSD 3.2 NetBSD 1.4 OpenBSD 2.5 | 1221.7Sitojun | | | | | | 1231.7Sitojun | FreeBSD 3.3 | NetBSD 1.4.1 | | 1241.7Sitojun | | | | OpenBSD 2.6 | 1251.7Sitojun | FreeBSD 3.4 | | | | 1261.7Sitojun | | | | | BSD/OS 4.1 1271.7SitojunFreeBSD 4.0 | | NetBSD 1.4.2 | | 1281.7Sitojun | | | | | | 1291.7Sitojun | | | | | | 1301.7Sitojun | FreeBSD 3.5 | | OpenBSD 2.7 | 1311.7Sitojun | | | | | | 1321.7Sitojun | FreeBSD 3.5.1 | | | | 1331.7Sitojun | | | | | 1341.7Sitojun *---FreeBSD 4.1 | | | | 1351.7Sitojun | | | | | | 1361.7Sitojun | FreeBSD 4.1.1 | | | | 1371.7Sitojun | | | v | | 1381.7Sitojun | FreeBSD 4.2 | NetBSD 1.4.3 | | 1391.7Sitojun | | | OpenBSD 2.8 BSD/OS 4.2 1401.8Sitojun | | NetBSD 1.5 | | 1411.8Sitojun | FreeBSD 4.3 | | | v 1421.8Sitojun | | | v OpenBSD 2.9 1431.8Sitojun | | | NetBSD 1.5.1 | 1441.8Sitojun | v | | 1451.6Sitojun | | | 1461.6SitojunFreeBSD 5.0-current NetBSD -current OpenBSD -current 1471.6Sitojun | | | 1481.6Sitojun v v v 1491.1Sabs 1501.1Sabs 1511.1SabsTime 1521.1Sabs---------------- 1531.1Sabs 1541.7SitojunTime tolerance +/- 6 months, depending on which book/article you read; if it 1551.7Sitojunwas the announcement in Usenet or if it was available as tape. 1561.1Sabs 1571.1Sabs[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, 1581.1Sabs and John Quarterman. The Design and Implementation of 1591.1Sabs the 4.4BSD Operating System. 1601.1Sabs[DOC] README, COPYRIGHT on tape. 1611.1Sabs[QCU] Salus, Peter H. A quarter century of UNIX. 1621.1Sabs[U25] Peter H. Salus. Unix at 25. 1631.1Sabs[USE] Usenet announcement. 1641.1Sabs[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz. 1651.1Sabs Changes in the Kernel in 2.9BSD. Second Berkeley Software 1661.1Sabs Distribution UNIX Version 2.9, July, 1983. 1671.1Sabs[KB] Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources, 1681.1Sabs Volume 11, Info 4, April, 1987. 1691.1Sabs[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement. 1701.1Sabs comp.bugs.4bsd.ucb-fixes, June 15, 1988. 1711.1Sabs[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11. 1721.1Sabs[FBD] FreeBSD Project, The. 1731.1Sabs[NBD] NetBSD Project, The. 1741.1Sabs[OBD] OpenBSD Project, The. 1751.1Sabs[dmr] Dennis Ritchie, via E-Mail 1761.7Sitojun[BSDI] Berkeley Software Design, Inc. 1771.1Sabs 1781.1SabsMultics 1965 1791.6SitojunUNIX Summer 1969 1801.1Sabs DEC PDP-7 1811.1SabsFirst Edition 1971-11-03 [QCU] 1821.1Sabs DEC PDP-11/20, Assembler 1831.1SabsSecond Edition 1972-06-12 [QCU] 1841.6Sitojun 10 UNIX installations 1851.1SabsThird Edition 1973-02-xx [QCU] 1861.1Sabs Pipes, 16 installations 1871.1SabsFourth Edition 1973-11-xx [QCU] 1881.1Sabs rewriting in C effected, 1891.1Sabs above 30 installations 1901.1SabsFifth Edition 1974-06-xx [QCU] 1911.1Sabs above 50 installations 1921.1SabsSixth Edition 1975-05-xx [QCU] 1931.1Sabs port to DEC Vax 1941.1SabsSeventh Edition 1979-01-xx [QCU] 1951.6Sitojun first portable UNIX 1961.6SitojunEighth Edition 1985-02-xx [QCU] 1971.1Sabs VAX 11/750, VAX 11/780 [dmr] 1981.1Sabs descended from 4.1c BSD [dmr] 1991.1Sabs descended from 4.1 BSD [44B] 2001.7Sitojun scooping-out and replacement of the character-device 2011.1Sabs and networking part by the streams mechanism 2021.1Sabs 2031.1SabsNinth Edition 1986-09-xx [QCU] 2041.1SabsTenth Edition 1989-10-xx [QCU] 2051.1Sabs 2061.1Sabs1BSD late 1977 2071.1Sabs 1978-03-09 [QCU] 2081.1Sabs PDP-11, Pascal, ex(1) 2091.1Sabs 30 free copies of 1BSD sent out 2101.1Sabs 35 tapes sold for 50 USD [QCU] 2111.1Sabs2BSD mid 1978 [QCU] 2121.1Sabs 75 2BSD tapes shipped 2131.1Sabs2.7.9BSD ?? [SMS] 2141.1Sabs2.8BSD 1981-07-xx [KSJ] 2151.1Sabs 2161.1Sabs2.8.1BSD 1982-01-xx [QCU] 2171.1Sabs set of performance improvements 2181.1Sabs2.9BSD 1983-07-xx [KSJ] 2191.1Sabs2.9.1BSD 1983-11-xx 2201.1Sabs2.9BSD-Seismo 1985-08-xx [SMS] 2211.1Sabs2.10BSD 1987-04-xx [KKK] 2221.1Sabs2.10.1BSD 1989-01-xx [SMS] 2231.1Sabs2.11BSD 1992-02-xx [SMS] 2241.6Sitojun2.11BSD rev #430 1999-12-13 [SMS] 2251.1Sabs 2261.1Sabs32V 1978-1[01]-xx [QCU] 2271.1Sabs3BSD late 1979 [QCU] 2281.1Sabs virtual memory, page replacement, 2291.1Sabs demand paging 2301.1Sabs4.0BSD 1980-10-xx 2311.1Sabs4.1BSD 1981-06-xx 2321.1Sabs4.1aBSD 1982-04-xx 2331.1Sabs alpha release, 100 sites, networking [44B] 2341.1Sabs4.1bBSD internal release, fast filesystem [44B] 2351.1Sabs4.1cBSD late 1982 2361.1Sabs beta release, IPC [44B] 2371.1Sabs4.2BSD 1983-09-xx [QCU] 2381.1Sabs4.3BSD 1986-06-xx [QCU] 2391.1Sabs 1986-04-xx [KB] 2401.1Sabs4.3BSD Tahoe 1988-06-xx [QCU] 2411.1Sabs4.3BSD NET/1 1988-11-xx [QCU] 2421.1Sabs4.3BSD Reno 1990-06-xx [QCU], [DOC] 2431.1Sabs4.3BSD NET/2 1991-06-xx [QCU] 2441.7Sitojun 2451.7SitojunBSD/386 ALPHA 1991-12-xx [BSDI] 2461.7Sitojun first code released to people outside BSDI 2471.1Sabs386BSD 0.0 1992-02-xx [DOC] 2481.7SitojunBSD/386 0.3.1 1992-04-xx [BSDI] first ext. beta; B customers 2491.7SitojunBSD/386 0.3.3 1992-06-xx [BSDI] first CDROM version 2501.7Sitojun386BSD 0.1 1992-07-28 [DOC] 2511.1Sabs4.4BSD Alpha 1992-07-07 2521.7SitojunBSD/386 0.9.3 1992-10-xx [BSDI] 2531.7Sitojun first external gamma; G customers 2541.7SitojunBSD/386 0.9.4 1992-12-xx [BSDI] 2551.7Sitojun would have been 1.0 except for request 2561.7Sitojun for preliminary injunction 2571.7SitojunBSD/386 1.0 1993-03-xx [BSDI] 2581.7Sitojun injunction denied; first official release 2591.6SitojunNetBSD 0.8 1993-04-20 [NBD] 2601.1Sabs4.4BSD 1993-06-01 [USE] 2611.1SabsNetBSD 0.9 1993-08-23 [NBD] 2621.8SitojunFreeBSD 1.0 1993-11-01 [FBD] 2631.7SitojunBSD/386 1.1 1994-02-xx [BSDI] 2641.1Sabs4.4BSD Lite 1994-03-01 [USE] 2651.6SitojunFreeBSD 1.1 1994-04-xx [FBD] 2661.6SitojunFreeBSD 1.1.5.1 1994-07-xx [FBD] 2671.6Sitojun supersedes 1.1.5 3 days after release. 2681.6SitojunNetBSD 1.0 1994-10-26 [NBD] 2691.1Sabs386BSD 1.0 1994-11-12 [USE] 2701.6SitojunFreeBSD 2.0 1995-01-xx [FBD] 2711.7SitojunBSD/OS 2.0 1995-01-xx [BSDI] 4.4 lite based 2721.7SitojunFreeBSD 2.0.5 1995-06-10 [FBD] 2731.7SitojunBSD/OS 2.0.1 1995-06-xx [BSDI] 2741.6Sitojun4.4BSD Lite Release 2 1995-06-xx [44B] 2751.6Sitojun the true final distribution from the CSRG 2761.7SitojunFreeBSD 2.1.0 1995-11-19 [FBD] 2771.1SabsNetBSD 1.1 1995-11-26 [NBD] 2781.7SitojunBSD/OS 2.1 1996-01-xx [BSDI] 2791.7SitojunFreeBSD 2.1.5 1996-07-14 [FBD] 2801.1SabsNetBSD 1.2 1996-10-04 [NBD] 2811.1SabsOpenBSD 2.0 1996-10-18 [OBD] 2821.7SitojunFreeBSD 2.1.6 1996-11-16 [FBD] 2831.7SitojunFreeBSD 2.1.6.1 1996-11-25 [FBD] (sendmail security release) 2841.7SitojunFreeBSD 2.1.7 1997-02-20 [FBD] 2851.7SitojunBSD/OS 3.0 1997-02-xx [BSDI] 4.4 lite2 based 2861.7SitojunFreeBSD 2.2.0 1997-03-16 [FBD] 2871.7SitojunFreeBSD 2.2.1 1997-03-25 [FBD] 2881.7SitojunFreeBSD 2.2.2 1997-05-16 [FBD] 2891.6SitojunNetBSD 1.2.1 1997-05-20 [NBD] (patch release) 2901.1SabsOpenBSD 2.1 1997-06-01 [OBD] 2911.7SitojunFreeBSD 2.2.5 1997-10-22 [FBD] 2921.1SabsOpenBSD 2.2 1997-12-01 [OBD] 2931.5SabsNetBSD 1.3 1998-01-04 [NBD] 2941.7SitojunFreeBSD 2.2.6 1998-03-25 [FBD] 2951.6SitojunNetBSD 1.3.1 1998-03-09 [NBD] (patch release) 2961.7SitojunBSD/OS 3.1 1998-03-xx [BSDI] 2971.1SabsOpenBSD 2.3 1998-05-19 [OBD] 2981.6SitojunNetBSD 1.3.2 1998-05-29 [NBD] (patch release) 2991.7SitojunFreeBSD 2.2.7 1998-07-22 [FBD] 3001.7SitojunBSD/OS 4.0 1998-08-xx [BSDI] 3011.7Sitojun 2-lock MP support, ELF executables 3021.6SitojunFreeBSD 3.0 1998-10-16 [FBD] 3031.7Sitojun FreeBSD-3.0 is a snapshot from -current, 3041.7Sitojun while 3.1 and 3.2 are from 3.x-stable which 3051.6Sitojun was branched quite some time after 3.0-release 3061.1SabsFreeBSD 2.2.8 1998-11-29 [FBD] 3071.1SabsOpenBSD 2.4 1998-12-01 [OBD] 3081.6SitojunNetBSD 1.3.3 1998-12-23 [NBD] (patch release) 3091.6SitojunFreeBSD 3.1 1999-02-15 [FBD] 3101.7SitojunBSD/OS 4.0.1 1999-03-xx [BSDI] 3111.4SabsNetBSD 1.4 1999-05-12 [NBD] 3121.6SitojunFreeBSD 3.2 1999-05-17 [FBD] 3131.4SabsOpenBSD 2.5 1999-05-19 [OBD] 3141.6SitojunNetBSD 1.4.1 1999-08-26 [NBD] (patch release) 3151.6SitojunFreeBSD 3.3 1999-09-17 [FBD] 3161.6SitojunOpenBSD 2.6 1999-12-01 [OBD] 3171.6SitojunFreeBSD 3.4 1999-12-20 [FBD] 3181.7SitojunBSD/OS 4.1 1999-12-xx [BSDI] 3191.6SitojunFreeBSD 4.0 2000-03-13 [FBD] 3201.6SitojunNetBSD 1.4.2 2000-03-19 [NBD] (patch release) 3211.6SitojunOpenBSD 2.7 2000-06-15 [OBD] 3221.6SitojunFreeBSD 3.5 2000-06-24 [FBD] 3231.6SitojunFreeBSD 4.1 2000-07-27 [FBD] 3241.6SitojunFreeBSD 3.5.1 2000-07-28 [FBD] 3251.6SitojunFreeBSD 4.1.1 2000-09-25 [FBD] (a network-only patch release) 3261.7SitojunFreeBSD 4.2 2000-11-21 [FBD] 3271.7SitojunNetBSD 1.4.3 2000-11-25 [NBD] (patch release) 3281.7SitojunBSD/OS 4.2 2000-11-29 [BSDI] 3291.7SitojunOpenBSD 2.8 2000-12-01 [OBD] 3301.7SitojunNetBSD 1.5 2000-12-06 [NBD] 3311.8SitojunFreeBSD 4.3 2001-04-20 [FBD] 3321.8SitojunOpenBSD 2.9 2001-06-01 [OBD] 3331.8SitojunNetBSD 1.5.1 2001-06-xx [NBD] (patch release) 3341.1Sabs 3351.1Sabs 3361.1SabsBibliography 3371.1Sabs------------------------ 3381.1Sabs 3391.1SabsLeffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John 3401.1SabsQuarterman. The Design and Implementation of the 4.3BSD UNIX Operating 3411.1SabsSystem. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1 3421.1Sabs 3431.1SabsSalus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing 3441.1SabsCompany, Inc., 1994. ISBN 0-201-54777-5 3451.1Sabs 3461.1SabsMcKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John 3471.1SabsQuarterman. The Design and Implementation of the 4.4BSD Operating 3481.1SabsSystem. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4 3491.1Sabs 3501.1SabsDoug McIlroy. Research Unix Reader. 3511.1Sabs 3521.1SabsMichael G. Brown. The Role of BSD in the Development of Unix. 3531.1SabsPresented to the Tasmanian Unix Special Interest Group of the 3541.1SabsAustralian Computer Society, Hobart, August 1993. 3551.1Sabs 3561.6SitojunPeter H. Salus. Unix at 25. Byte Magazine, October 1994. 3571.1SabsURL: http://www.byte.com/art/9410/sec8/art3.htm 3581.1Sabs 3591.1SabsAndreas Klemm, Lars K�ller. If you're going to San Francisco ... 3601.1SabsDie freien BSD-Varianten von Unix. c't April 1997, page 368ff. 3611.1Sabs 3621.1SabsBSD Release Announcements collection. 3631.6SitojunURL: http://www.de.FreeBSD.org/de/ftp/releases/ 3641.1Sabs 3651.1SabsBSD Hypertext Man Pages 3661.6Sitojunhttp://www.FreeBSD.org/cgi/man.cgi 3671.6Sitojun 3681.6SitojunUNIX history graphing project 3691.6Sitojunhttp://minnie.cs.adfa.edu.au/Unix_History/index.html 3701.6Sitojun 3711.6SitojunUNIX history 3721.6Sitojunhttp://perso.wanadoo.fr/levenez/unix/ 3731.1Sabs 3741.8SitojunJames Howard: The BSD Family Tree 3751.8Sitojunhttp://www.daemonnews.org/200104/bsd_family.html 3761.8Sitojun("what are the differences between FreeBSD, NetBSD, and OpenBSD?") 3771.8Sitojun 3781.8Sitojun 3791.1SabsAcknowledgments 3801.1Sabs--------------- 3811.1Sabs 3821.6SitojunJosh Gilliam for suggestions, bug fixes, and finding very old 3831.1Sabsoriginal BSD announcements from Usenet or tapes. 3841.1Sabs 3851.1SabsSteven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages. 3861.1Sabs 3871.1Sabs-- 3881.8SitojunCopyright (c) 1997-2001 Wolfram Schneider <wosch@FreeBSD.ORG> 3891.7SitojunURL: ftp://ftp.freebsd.org/pub/FreeBSD/branches/-current/src/share/misc/bsd-family-tree 3901.1Sabs 3911.8Sitojun$FreeBSD: src/share/misc/bsd-family-tree,v 1.47 2001/06/27 04:41:58 itojun Exp $ 3921.1Sabs 3931.8Sitojun$NetBSD: bsd-family-tree,v 1.8 2001/06/28 15:16:37 itojun Exp $ 394