bsd-family-tree revision 1.55
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                  |                      |
281.43Shubertf               4.0BSD                2.79BSD
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  |             |
651.46Sriz   |                -NetBSD 0.8                |           BSD/386 1.0
661.46Sriz   |               /    |                      |             |
671.46SrizFreeBSD 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
791.11Sitojun   |                 .-----\------------- 4.4BSD Lite2       |
801.11Sitojun   |                 |      \             |  |   |   |       |
811.11Sitojun   |                 | .-----|------Rhapsody |   |   |       |
821.11Sitojun   |                 | |     |        NetBSD 1.3 |   |       |
831.11Sitojun   |                 | |     |           OpenBSD 2.3 |       |
841.11Sitojun   |                 | |     |                BSD/OS 3.0     |
851.11SitojunFreeBSD 2.1          | |     |                               |
861.11Sitojun |   |               | |  NetBSD 1.1 ------.               BSD/OS 2.1
871.11Sitojun | FreeBSD 2.1.5     | |     |              \                |
881.11Sitojun |     |             | |  NetBSD 1.2         \             BSD/OS 3.0
891.11Sitojun | FreeBSD 2.1.6     | |     |  \          OpenBSD 2.0       |
901.11Sitojun |     |             | |     |   \             |             |
911.11Sitojun | FreeBSD 2.1.6.1   | |     |    \            |             |
921.11Sitojun |     |             | |     |     \           |             |
931.11Sitojun | FreeBSD 2.1.7     | |     |      |          |             |
941.11Sitojun |     |             | |     |  NetBSD 1.2.1   |             |
951.11Sitojun | FreeBSD 2.1.7.1   | |     |                 |             |
961.11Sitojun |                   | |     |                 |             |
971.11Sitojun |                   | |     |                 |             |
981.11Sitojun *-FreeBSD 2.2       | |     |                 |             |
991.11Sitojun |        \          | |     |                 |             |
1001.11Sitojun |     FreeBSD 2.2.1 | |     |                 |             |
1011.11Sitojun |         |         | |     |                 |             |
1021.11Sitojun |     FreeBSD 2.2.2 | |     |             OpenBSD 2.1       |
1031.11Sitojun |         |         | |     |                 |             |
1041.11Sitojun |     FreeBSD 2.2.5 | |     |                 |             |
1051.11Sitojun |         |         | |     |             OpenBSD 2.2       |
1061.11Sitojun |         |         | |  NetBSD 1.3           |             |
1071.11Sitojun |     FreeBSD 2.2.6 | |     |    |            |             |
1081.11Sitojun |         |         | |     | NetBSD 1.3.1    |           BSD/OS 3.1
1091.11Sitojun |         |         | |     |    |        OpenBSD 2.3       |
1101.11Sitojun |         |         | |     | NetBSD 1.3.2    |             |
1111.11Sitojun |     FreeBSD 2.2.7 | |     |    |            |             |
1121.11Sitojun |         |         | |     |    |            |           BSD/OS 4.0
1131.11Sitojun |         v         | |     |    |            |             |
1141.11Sitojun |     FreeBSD 2.2.8 | |     |    |            |             |
1151.11Sitojun |                   | |     |    |        OpenBSD 2.4       |
1161.11SitojunFreeBSD 3.0 <--------* |     |    v            |             |
1171.11Sitojun |                     |     | NetBSD 1.3.3    |             |
1181.11Sitojun *---FreeBSD 3.1       |     |                 |             |
1191.11Sitojun |       |             |     |                 |           BSD/OS 4.0.1
1201.11Sitojun |   FreeBSD 3.2----*  |  NetBSD 1.4       OpenBSD 2.5       |
1211.11Sitojun |       |          |  |  |  |    |            |             |
1221.11Sitojun |       |          |  |  |  |    |            |             |
1231.11Sitojun |       |          |  |  |  |    |            |             |
1241.11Sitojun |   FreeBSD 3.3    |  |  |  | NetBSD 1.4.1    |             |
1251.11Sitojun |       |          |  |  |  |    |        OpenBSD 2.6       |
1261.11Sitojun |   FreeBSD 3.4    |  |  |  |    |            |             |
1271.11Sitojun |           |      |  |  |  |    |            |           BSD/OS 4.1
1281.11SitojunFreeBSD 4.0  |      |  |  |  | NetBSD 1.4.2    |             |
1291.11Sitojun |           |      |  |  |  |    |            |             |
1301.11Sitojun |           |      |  |  |  |    |            |             |
1311.11Sitojun |   FreeBSD 3.5    |  |  |  |    |        OpenBSD 2.7       |
1321.11Sitojun |           |      |  |  |  |    |            |             |
1331.11Sitojun |   FreeBSD 3.5.1  |  |  |  |    |            |             |
1341.11Sitojun |                  |  |  |  |    |            |             |
1351.11Sitojun *---FreeBSD 4.1    |  |  |  |    |            |             |
1361.11Sitojun |      |           |  | (?) |    |            |             |
1371.11Sitojun |   FreeBSD 4.1.1  |  |  /  |    |            |             |
1381.16Sjunyoung |      |           |  | /   |    |            |             |
1391.11Sitojun |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
1401.25Ssoda |      |         Mac OS X   |             OpenBSD 2.8     BSD/OS 4.2
1411.25Ssoda |      |             |      |                 |             |
1421.13Sjunyoung |      |             |      |                 |             |
1431.11Sitojun |      |           10.0  NetBSD 1.5           |             |
1441.17Sjunyoung |   FreeBSD 4.3      |      |    |            |             |
1451.17Sjunyoung |      |             |      |    |        OpenBSD 2.9       |
1461.17Sjunyoung |      |             |      | NetBSD 1.5.1    |             |
1471.17Sjunyoung |      |             |      |    |            |             |
1481.17Sjunyoung |   FreeBSD 4.4-.    |      | NetBSD 1.5.2    |             |
1491.17Sjunyoung |      |        | Mac OS X  |    |            |             |
1501.17Sjunyoung |      |        |   10.1    |    |        OpenBSD 3.0       |
1511.17Sjunyoung |   FreeBSD 4.5 |    |      |    |            |             |
1521.17Sjunyoung |      |         \   |      |    |            |           BSD/OS 4.3
1531.17Sjunyoung |   FreeBSD 4.6   \  |      |    |        OpenBSD 3.1       |
1541.43Shubertf |      |           \ |      | NetBSD 1.5.3    |             |
1551.25Ssoda |   FreeBSD 4.6.2 Mac OS X  |                 |             |
1561.25Ssoda |      |            10.2    |                 |             |
1571.21Scjep |   FreeBSD 4.7      |      |                 |             |
1581.21Scjep |      |             |   NetBSD 1.6       OpenBSD 3.2       |
1591.21Scjep |   FreeBSD 4.8      |      |    |            |             |
1601.21Scjep |      |             |      | NetBSD 1.6.1    |             |
1611.23Speter |      |--------.    |      |    |        OpenBSD 3.3     BSD/OS 5.0
1621.23Speter |      |         \   |      |    |            |             |
1631.23Speter |   FreeBSD 4.9   |  |      |    |        OpenBSD 3.4     BSD/OS 5.1 ISE
1641.23Speter |      |          |  |      |    |            |
1651.23Speter |      |          |  |      | NetBSD 1.6.2    |
1661.23Speter |      |          |  |      |    |            |
1671.23Speter |      |          |  |      |    |        OpenBSD 3.5
1681.23Speter |      |          |  |      |    v            |
1691.23Speter |   FreeBSD 4.10  |  |      |                 |
1701.23Speter |      |          |  |      |                 |
1711.23Speter |   FreeBSD 4.11  |  |      |                 |
1721.42Shubertf |                 |  |      |                 |
1731.42Shubertf |                  `-|------|-----------------|---------------------.
1741.23Speter |                    |      |                 |                      \
1751.23SpeterFreeBSD 5.0           |      |                 |                       |
1761.23Speter |                    |      |                 |                       |
1771.40SxtraemeFreeBSD 5.1           |      |                 |                 DragonFly 1.0
1781.23Speter |          \         |      |                 |                       |
1791.23Speter |           ----- Mac OS X  |                 |                       |
1801.23Speter |                   10.3    |                 |                       |
1811.23SpeterFreeBSD 5.2           |      |                 |                       |
1821.23Speter |      |             |      |                 |                       |
1831.23Speter |   FreeBSD 5.2.1    |      |                 |                       |
1841.23Speter |                    |      |                 |                       |
1851.35Srpaulo *-------FreeBSD 5.3  |      |                 |                       |
1861.35Srpaulo |           |        |      |             OpenBSD 3.6                 |
1871.35Srpaulo |           |        |   NetBSD 2.0           |                       |
1881.40Sxtraeme |           |        |      | |  |            |                DragonFly 1.2.0
1891.35Srpaulo |           |     Mac OS X  | | NetBSD 2.0.2  |                       |
1901.35Srpaulo |           |       10.4    | |  |            |                       |
1911.35Srpaulo |       FreeBSD 5.4  |      | |  |            |                       |
1921.35Srpaulo |           |        |      | |  |        OpenBSD 3.7                 |
1931.35Srpaulo |           |        |      | | NetBSD 2.0.3  |                       |
1941.35Srpaulo |           |        |      | |  |            |                       |
1951.35Srpaulo *--FreeBSD  |        |      | |  v        OpenBSD 3.8                 |
1961.35Srpaulo |    6.0    |        |      | |               |                       |
1971.35Srpaulo |     |     |        |      |  \              |                       |
1981.35Srpaulo |     |     |        |      | NetBSD 2.1      |                       |
1991.35Srpaulo |     |     |        |      |                 |                       |
2001.35Srpaulo |     |     |        |   NetBSD 3.0           |                       |
2011.40Sxtraeme |     |     |        |      | |  |            |                DragonFly 1.4.0
2021.38Srpaulo |     |     |        |      | |  |        OpenBSD 3.9                 |
2031.38Srpaulo |  FreeBSD  |        |      | |  |            |                       |
2041.38Srpaulo |    6.1    |        |      | |  |            |                       |
2051.38Srpaulo |     |  FreeBSD 5.5 |      | |  |            |                       |
2061.40Sxtraeme |     |              |      | | NetBSD 3.0.1  |                DragonFly 1.6.0
2071.38Srpaulo |     |              |      | |  |            |                       |
2081.39Srpaulo |     |              |      | |  |        OpenBSD 4.0                 |
2091.39Srpaulo |     |              |      | | NetBSD 3.0.2  |                       |
2101.39Srpaulo |     |              |      | NetBSD 3.1      |                       |
2111.39Srpaulo | FreeBSD 6.2        |      |                 |                       |
2121.40Sxtraeme |     |              |      |                 |                DragonFly 1.8.0
2131.40Sxtraeme |     |              |      |             OpenBSD 4.1                 |
2141.40Sxtraeme |     |              |      |                 |                DragonFly 1.10.0
2151.42Shubertf |     |           Mac OS X  |                 |                       |
2161.42Shubertf |     |             10.5    |                 |                       |
2171.40Sxtraeme |     |              |      |             OpenBSD 4.2                 |
2181.42Shubertf |     |              |   NetBSD 4.0           |                       |
2191.47Sriz | FreeBSD 6.3        |      |    |            |                       |
2201.47Sriz |            \       |      |    |            |                       |
2211.47Sriz *--FreeBSD    |      |      |    |            |                DragonFly 1.12.0
2221.47Sriz |    7.0      |      |      |    |            |                       |
2231.47Sriz |     |       |      |      |    |        OpenBSD 4.3                 |
2241.50Sapb |     |       |      |      | NetBSD          |                DragonFly 2.0.0
2251.50Sapb |     |    FreeBSD   |      |  4.0.1      OpenBSD 4.4                 |
2261.42Shubertf |     |      6.4     |      |                 |                       |
2271.42Shubertf |     |              |      |                 |                       |
2281.42Shubertf |  FreeBSD 7.1       |      |                 |                       |
2291.43Shubertf |     |              |      |                 |                DragonFly 2.2.0
2301.43Shubertf |  FreeBSD 7.2       |   NetBSD 5.0       OpenBSD 4.5                 |
2311.47Sriz |             \      |      | |    \          |                       |
2321.47Sriz |              |  Mac OS X  | |     \         |                       |
2331.47Sriz |              |    10.6    | |      \        |                       |
2341.47Sriz |              |     |      | |   NetBSD      |                DragonFly 2.4.0
2351.47Sriz |              |     |      | |    5.0.1  OpenBSD 4.6                 |
2361.47Sriz |              |     |      | |       |       |                       |
2371.47Sriz *--FreeBSD     |     |      | |       |       |                       |
2381.47Sriz |    8.0       |     |      | |       |       |                       |
2391.47Sriz |     |     FreeBSD  |      | |   NetBSD      |                       |
2401.47Sriz |     |       7.3    |      | |    5.0.2      |                DragonFly 2.6.0
2411.47Sriz |     |        |     |      | |           OpenBSD 4.7                 |
2421.47Sriz |  FreeBSD     |     |      | |               |                       |
2431.47Sriz |    8.1       |     |      | |               |                       |
2441.47Sriz |     |        |     |      | |               |                DragonFly 2.8.2
2451.50Sapb |     |        |     |      | |           OpenBSD 4.8                 |
2461.50Sapb |     |        |     |      | *--NetBSD       |                       |
2471.50Sapb |  FreeBSD  FreeBSD  |      | |    5.1        |                       |
2481.50Sapb |    8.2      7.4    |      | |      |        |               DragonFly 2.10.1
2491.50Sapb |     |              |      | |      |    OpenBSD 4.9                 |
2501.50Sapb |     `-----.     Mac OS X  | |      |        |                       |
2511.50Sapb |            \      10.7    | |      |        |                       |
2521.50Sapb |             |      |      | |      |    OpenBSD 5.0                 |
2531.50Sapb *--FreeBSD    |      |      | |      |        |                       |
2541.50Sapb |    9.0      |      |      | |   NetBSD      |               DragonFly 3.0.1
2551.50Sapb |     |    FreeBSD   |      | |    5.1.2      |                       |
2561.53Sriz |     |      8.3     |      | |      |        |                       |
2571.53Sriz |     |       |      |      | |   NetBSD      |                       |
2581.53Sriz |     |       |      |      | |    5.1.3      |                       |
2591.53Sriz |     |       |      |      | |           OpenBSD 5.1                 |
2601.51Sapb |     |       |   Mac OS X  | `----.          |                       |
2611.51Sapb |     |       |     10.8    |       \         |                       |
2621.51Sapb |     |       |      |   NetBSD 6.0  |        |                       |
2631.51Sapb |     |       |      |      | | |    |    OpenBSD 5.2         DragonFly 3.2.1
2641.51Sapb |  FreeBSD    |      |      | | | NetBSD      |                       |
2651.51Sapb |    9.1      |      |      | | |   5.2       |                       |
2661.53Sriz |             |      |      | | |    |        |                       |
2671.53Sriz |             |      |      | | | NetBSD      |                       |
2681.53Sriz |             |      |      | | |  5.2.1      |                       |
2691.53Sriz |             |      |      | | |             |                       |
2701.51Sapb |             |      |      | |  \            |                       |
2711.51Sapb |             |      |      | |   NetBSD      |                       |
2721.51Sapb |             |      |      | |    6.0.1      |                       |
2731.51Sapb |             |      |      | |      |   OpenBSD 5.3          DragonFly 3.4.1
2741.51Sapb |             |      |      | |   NetBSD      |                       |
2751.51Sapb |             |      |      | |    6.0.2      |                       |
2761.54Sriz |             |      |      | |      |        |                       |
2771.54Sriz |             |      |      | |  NetBSD 6.0.3 |                       |
2781.55Smsaitoh |             |      |      | |      |        |                       |
2791.55Smsaitoh |             |      |      | |  NetBSD 6.0.4 |                       |
2801.55Smsaitoh |             |      |      | |      |        |                       |
2811.55Smsaitoh |             |      |      | |  NetBSD 6.0.5 |                       |
2821.51Sapb |             |      |      | |               |                       |
2831.51Sapb |             |      |      |  `-NetBSD 6.1   |                       |
2841.54Sriz |          FreeBSD   |      |     |           |                       |
2851.54Sriz |            8.4     |      |    NetBSD 6.1.1 |                       |
2861.54Sriz |                    |      |     |           |                       |
2871.54Sriz |                    |      |    NetBSD 6.1.2 |                       |
2881.55Smsaitoh |                    |      |     |           |                       |
2891.55Smsaitoh |                    |      |    NetBSD 6.1.3 |                       |
2901.55Smsaitoh |                    |      |     |           |                       |
2911.55Smsaitoh |                    |      |    NetBSD 6.1.4 |                       |
2921.42Shubertf |                    |      |                 |                       |
2931.43ShubertfFreeBSD 10 -current   |  NetBSD -current  OpenBSD -current             |
2941.23Speter |                    |      |                 |                       |
2951.23Speter v                    v      v                 v                       v
2961.1Sabs
2971.1SabsTime
2981.1Sabs----------------
2991.1Sabs
3001.7SitojunTime tolerance +/- 6 months, depending on which book/article you read; if it
3011.7Sitojunwas the announcement in Usenet or if it was available as tape.
3021.1Sabs
3031.1Sabs[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
3041.1Sabs	and John Quarterman. The Design and Implementation of
3051.1Sabs	the 4.4BSD Operating System.
3061.11Sitojun[APL] Apple website [http://www.apple.com/macosx/]
3071.17Sjunyoung[BSDI] Berkeley Software Design, Inc.
3081.24Ssoda[DFB] DragonFlyBSD Project, The.
3091.1Sabs[DOC] README, COPYRIGHT on tape.
3101.17Sjunyoung[FBD] FreeBSD Project, The.
3111.1Sabs[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
3121.1Sabs	Volume 11, Info 4, April, 1987.
3131.1Sabs[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
3141.1Sabs	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
3151.17Sjunyoung[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
3161.17Sjunyoung	Changes in the Kernel in 2.9BSD. Second Berkeley Software
3171.17Sjunyoung	Distribution UNIX Version 2.9, July, 1983.
3181.1Sabs[NBD] NetBSD Project, The.
3191.1Sabs[OBD] OpenBSD Project, The.
3201.17Sjunyoung[QCU] Salus, Peter H. A quarter century of UNIX.
3211.17Sjunyoung[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
3221.43Shubertf[TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
3231.17Sjunyoung[USE] Usenet announcement.
3241.17Sjunyoung[WRS] Wind River Systems, Inc.
3251.1Sabs[dmr] Dennis Ritchie, via E-Mail
3261.1Sabs
3271.1SabsMultics                 1965
3281.6SitojunUNIX                    Summer 1969
3291.1Sabs				DEC PDP-7
3301.1SabsFirst   Edition         1971-11-03 [QCU]
3311.1Sabs				DEC PDP-11/20, Assembler
3321.1SabsSecond  Edition         1972-06-12 [QCU]
3331.6Sitojun				10 UNIX installations
3341.1SabsThird   Edition         1973-02-xx [QCU]
3351.1Sabs				Pipes, 16 installations
3361.1SabsFourth  Edition         1973-11-xx [QCU]
3371.1Sabs				rewriting in C effected,
3381.1Sabs                                above 30 installations
3391.1SabsFifth   Edition         1974-06-xx [QCU]
3401.1Sabs				above 50 installations
3411.1SabsSixth   Edition         1975-05-xx [QCU]
3421.1Sabs				port to DEC Vax
3431.1SabsSeventh Edition         1979-01-xx [QCU]
3441.6Sitojun				first portable UNIX
3451.6SitojunEighth  Edition         1985-02-xx [QCU]
3461.1Sabs				VAX 11/750, VAX 11/780 [dmr]
3471.1Sabs				descended from 4.1c BSD [dmr]
3481.1Sabs				descended from 4.1 BSD [44B]
3491.7Sitojun			scooping-out and replacement of the character-device
3501.1Sabs			and networking part by the streams mechanism
3511.1Sabs
3521.1SabsNinth   Edition         1986-09-xx [QCU]
3531.1SabsTenth   Edition         1989-10-xx [QCU]
3541.1Sabs
3551.1Sabs1BSD                    late 1977
3561.1Sabs			1978-03-09 [QCU]
3571.1Sabs				PDP-11, Pascal, ex(1)
3581.1Sabs				30 free copies of 1BSD sent out
3591.1Sabs				35 tapes sold for 50 USD [QCU]
3601.43Shubertf2BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
3611.1Sabs				75 2BSD tapes shipped
3621.43Shubertf2.79BSD			1980-04-xx [TUHS]
3631.1Sabs2.8BSD			1981-07-xx [KSJ]
3641.1Sabs
3651.1Sabs2.8.1BSD		1982-01-xx [QCU]
3661.1Sabs				set of performance improvements
3671.1Sabs2.9BSD			1983-07-xx [KSJ]
3681.43Shubertf2.9.1BSD                1983-11-xx [TUHS]
3691.1Sabs2.9BSD-Seismo		1985-08-xx [SMS]
3701.1Sabs2.10BSD			1987-04-xx [KKK]
3711.1Sabs2.10.1BSD		1989-01-xx [SMS]
3721.1Sabs2.11BSD			1992-02-xx [SMS]
3731.6Sitojun2.11BSD rev #430	1999-12-13 [SMS]
3741.1Sabs
3751.1Sabs32V			1978-1[01]-xx [QCU]
3761.43Shubertf3BSD                    late 1979 [QCU] March 1980 [TUHS]
3771.1Sabs				virtual memory, page replacement,
3781.1Sabs                        	demand paging
3791.1Sabs4.0BSD                  1980-10-xx
3801.13Sjunyoung4.1BSD                  1981-07-08 [DOC]
3811.1Sabs4.1aBSD                 1982-04-xx
3821.1Sabs				alpha release, 100 sites, networking [44B]
3831.1Sabs4.1bBSD				internal release, fast filesystem [44B]
3841.1Sabs4.1cBSD                 late 1982
3851.1Sabs				beta release, IPC [44B]
3861.1Sabs4.2BSD                  1983-09-xx [QCU]
3871.13Sjunyoung                        1983-08-03 [DOC]
3881.1Sabs4.3BSD                  1986-06-xx [QCU]
3891.13Sjunyoung			1986-04-05 [KB], [DOC]
3901.13Sjunyoung4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
3911.1Sabs4.3BSD NET/1            1988-11-xx [QCU]
3921.13Sjunyoung                        1989-01-01 [DOC]
3931.13Sjunyoung4.3BSD Reno             1990-06-29 [QCU], [DOC]
3941.13Sjunyoung4.3BSD NET/2            1991-06-28 [QCU], [DOC]
3951.7Sitojun
3961.7SitojunBSD/386 ALPHA		1991-12-xx [BSDI]
3971.7Sitojun				first code released to people outside BSDI
3981.1Sabs386BSD 0.0              1992-02-xx [DOC]
3991.7SitojunBSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
4001.7SitojunBSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
4011.7Sitojun386BSD 0.1              1992-07-28 [DOC]
4021.1Sabs4.4BSD Alpha            1992-07-07
4031.7SitojunBSD/386 0.9.3		1992-10-xx [BSDI]
4041.7Sitojun				first external gamma; G customers
4051.7SitojunBSD/386 0.9.4		1992-12-xx [BSDI]
4061.7Sitojun				would have been 1.0 except for request
4071.7Sitojun				for preliminary injunction
4081.7SitojunBSD/386 1.0 		1993-03-xx [BSDI]
4091.7Sitojun				injunction denied; first official release
4101.6SitojunNetBSD 0.8              1993-04-20 [NBD]
4111.1Sabs4.4BSD                  1993-06-01 [USE]
4121.1SabsNetBSD 0.9              1993-08-23 [NBD]
4131.8SitojunFreeBSD 1.0		1993-11-01 [FBD]
4141.40SxtraemeFreeBSD 1.0.2		1993-11-14 [FBD]
4151.40Sxtraeme				supersedes 1.0 13 days after release.
4161.7SitojunBSD/386 1.1		1994-02-xx [BSDI]
4171.1Sabs4.4BSD Lite             1994-03-01 [USE]
4181.24SsodaFreeBSD 1.1		1994-05-07 [FBD]
4191.24SsodaFreeBSD 1.1.5		1994-06-30 [FBD]
4201.24SsodaFreeBSD 1.1.5.1		1994-07-05 [FBD]
4211.24Ssoda				supersedes 1.1.5 5 days after release.
4221.6SitojunNetBSD 1.0              1994-10-26 [NBD]
4231.1Sabs386BSD 1.0              1994-11-12 [USE]
4241.24SsodaFreeBSD 2.0		1994-11-23 [FBD]
4251.7SitojunBSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
4261.7SitojunFreeBSD 2.0.5		1995-06-10 [FBD]
4271.7SitojunBSD/OS 2.0.1		1995-06-xx [BSDI]
4281.6Sitojun4.4BSD Lite Release 2	1995-06-xx [44B]
4291.6Sitojun				the true final distribution from the CSRG
4301.7SitojunFreeBSD 2.1.0		1995-11-19 [FBD]
4311.1SabsNetBSD 1.1              1995-11-26 [NBD]
4321.7SitojunBSD/OS 2.1		1996-01-xx [BSDI]
4331.7SitojunFreeBSD 2.1.5		1996-07-14 [FBD]
4341.1SabsNetBSD 1.2              1996-10-04 [NBD]
4351.1SabsOpenBSD 2.0             1996-10-18 [OBD]
4361.7SitojunFreeBSD 2.1.6		1996-11-16 [FBD]
4371.7SitojunFreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
4381.11SitojunRhapsody		1997-xx-xx
4391.7SitojunFreeBSD 2.1.7		1997-02-20 [FBD]
4401.7SitojunBSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
4411.7SitojunFreeBSD 2.2.0		1997-03-16 [FBD]
4421.7SitojunFreeBSD 2.2.1		1997-03-25 [FBD]
4431.7SitojunFreeBSD 2.2.2		1997-05-16 [FBD]
4441.6SitojunNetBSD 1.2.1            1997-05-20 [NBD] (patch release)
4451.1SabsOpenBSD 2.1             1997-06-01 [OBD]
4461.7SitojunFreeBSD 2.2.5		1997-10-22 [FBD]
4471.1SabsOpenBSD 2.2             1997-12-01 [OBD]
4481.5SabsNetBSD 1.3              1998-01-04 [NBD]
4491.7SitojunFreeBSD 2.2.6		1998-03-25 [FBD]
4501.6SitojunNetBSD 1.3.1            1998-03-09 [NBD] (patch release)
4511.7SitojunBSD/OS 3.1		1998-03-xx [BSDI]
4521.1SabsOpenBSD 2.3             1998-05-19 [OBD]
4531.6SitojunNetBSD 1.3.2            1998-05-29 [NBD] (patch release)
4541.7SitojunFreeBSD 2.2.7		1998-07-22 [FBD]
4551.7SitojunBSD/OS 4.0		1998-08-xx [BSDI]
4561.7Sitojun				2-lock MP support, ELF executables
4571.6SitojunFreeBSD 3.0		1998-10-16 [FBD]
4581.7Sitojun				FreeBSD-3.0 is a snapshot from -current,
4591.7Sitojun				while 3.1 and 3.2 are from 3.x-stable which
4601.6Sitojun				was branched quite some time after 3.0-release
4611.1SabsFreeBSD 2.2.8           1998-11-29 [FBD]
4621.1SabsOpenBSD 2.4             1998-12-01 [OBD]
4631.6SitojunNetBSD 1.3.3            1998-12-23 [NBD] (patch release)
4641.6SitojunFreeBSD 3.1		1999-02-15 [FBD]
4651.7SitojunBSD/OS 4.0.1		1999-03-xx [BSDI]
4661.4SabsNetBSD 1.4              1999-05-12 [NBD]
4671.6SitojunFreeBSD 3.2             1999-05-17 [FBD]
4681.4SabsOpenBSD 2.5             1999-05-19 [OBD]
4691.6SitojunNetBSD 1.4.1            1999-08-26 [NBD] (patch release)
4701.6SitojunFreeBSD 3.3             1999-09-17 [FBD]
4711.6SitojunOpenBSD 2.6             1999-12-01 [OBD]
4721.6SitojunFreeBSD 3.4             1999-12-20 [FBD]
4731.7SitojunBSD/OS 4.1		1999-12-xx [BSDI]
4741.6SitojunFreeBSD 4.0             2000-03-13 [FBD]
4751.6SitojunNetBSD 1.4.2            2000-03-19 [NBD] (patch release)
4761.6SitojunOpenBSD 2.7             2000-06-15 [OBD]
4771.6SitojunFreeBSD 3.5		2000-06-24 [FBD]
4781.6SitojunFreeBSD 4.1		2000-07-27 [FBD]
4791.6SitojunFreeBSD 3.5.1		2000-07-28 [FBD]
4801.6SitojunFreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
4811.7SitojunFreeBSD 4.2  		2000-11-21 [FBD]
4821.7SitojunNetBSD 1.4.3		2000-11-25 [NBD] (patch release)
4831.7SitojunBSD/OS 4.2		2000-11-29 [BSDI]
4841.7SitojunOpenBSD 2.8		2000-12-01 [OBD]
4851.7SitojunNetBSD 1.5              2000-12-06 [NBD]
4861.11SitojunMac OS X 10.0           2001-03-24 [APL]
4871.8SitojunFreeBSD 4.3  		2001-04-20 [FBD]
4881.8SitojunOpenBSD 2.9  		2001-06-01 [OBD]
4891.11SitojunNetBSD 1.5.1		2001-07-11 [NBD] (patch release)
4901.11SitojunNetBSD 1.5.2		2001-09-13 [NBD] (patch release)
4911.11SitojunFreeBSD 4.4  		2001-09-18 [FBD]
4921.17SjunyoungMac OS X 10.1		2001-09-29 [APL]
4931.13SjunyoungOpenBSD 3.0		2001-12-01 [OBD]
4941.13SjunyoungFreeBSD 4.5  		2002-01-29 [FBD]
4951.17SjunyoungBSD/OS 4.3		2002-03-14 [WRS]
4961.17SjunyoungOpenBSD 3.1		2002-05-19 [OBD]
4971.17SjunyoungFreeBSD 4.6  		2002-06-15 [FBD]
4981.14SjunyoungNetBSD 1.5.3		2002-07-22 [NBD] (patch release)
4991.17SjunyoungFreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
5001.17SjunyoungMac OS X 10.2		2002-08-23 [APL]
5011.17SjunyoungNetBSD 1.6		2002-09-14 [NBD]
5021.17SjunyoungFreeBSD 4.7		2002-10-08 [FBD]
5031.19SwizOpenBSD 3.2		2002-11-01 [OBD]
5041.20SitojunFreeBSD 5.0		2003-01-17 [FBD]
5051.20Sitojun				FreeBSD 5.0 is a separate branch off of
5061.20Sitojun				-current, similar to 3.0.
5071.20SitojunFreeBSD 4.8		2003-04-03 [FBD]
5081.20SitojunNetBSD 1.6.1		2003-04-21 [NBD] (patch release)
5091.20SitojunOpenBSD 3.3		2003-05-01 [OBD]
5101.21ScjepBSD/OS 5.0		2003-05-?? [WRS]
5111.21ScjepFreeBSD 5.1		2003-06-09 [FBD]
5121.23SpeterMac OS X 10.3		2003-10-24 [APL]
5131.23SpeterFreeBSD 4.9		2003-10-28 [FBD]
5141.23SpeterBSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
5151.23SpeterOpenBSD 3.4		2003-11-01 [OBD]
5161.23SpeterFreeBSD 5.2		2004-01-12 [FBD]
5171.23SpeterFreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
5181.23SpeterNetBSD 1.6.2		2004-03-01 [NBD] (patch release)
5191.23SpeterOpenBSD 3.5		2004-04-01 [OBD]
5201.23SpeterFreeBSD 4.10		2004-05-27 [FBD]
5211.24SsodaDragonFly 1.0		2004-07-12 [DFB]
5221.23SpeterOpenBSD 3.6		2004-10-29 [OBD]
5231.23SpeterFreeBSD 5.3		2004-11-06 [FBD]
5241.23SpeterNetBSD 2.0		2004-12-09 [NBD]
5251.23SpeterFreeBSD 4.11		2005-01-25 [FBD]
5261.24SsodaDragonFly 1.2.0		2005-04-08 [DFB]
5271.26SsodaNetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
5281.24SsodaMac OS X 10.4		2005-04-29 [APL]
5291.24SsodaFreeBSD 5.4		2005-05-09 [FBD]
5301.24SsodaOpenBSD 3.7		2005-05-19 [OBD]
5311.28SrpauloNetBSD 2.0.3		2005-10-31 [NBD] (security/critical release)
5321.27SrpauloOpenBSD 3.8		2005-11-01 [OBD]
5331.29SrpauloFreeBSD 6.0		2005-11-01 [FBD]
5341.28SrpauloNetBSD 2.1		2005-11-02 [NBD]
5351.30SrpauloNetBSD 3.0		2005-12-23 [NBD]
5361.30SrpauloDragonFly 1.4.0		2006-01-08 [DFB]
5371.34SrpauloOpenBSD 3.9		2006-05-01 [OBD]
5381.35SrpauloFreeBSD 6.1		2006-05-08 [FBD]
5391.35SrpauloFreeBSD 5.5		2006-05-25 [FBD]
5401.36SrpauloNetBSD 3.0.1		2006-07-24 [NBD] (security/critical release)
5411.37SrpauloDragonFly 1.6.0		2006-07-24 [DFB]
5421.38SrpauloOpenBSD 4.0		2006-11-01 [OBD]
5431.38SrpauloNetBSD 3.0.2		2006-11-04 [NBD] (security/critical release)
5441.38SrpauloNetBSD 3.1		2006-11-04 [NBD]
5451.39SrpauloFreeBSD 6.2		2007-01-15 [FBD]
5461.39SrpauloDragonFly 1.8.0		2007-01-30 [DFB]
5471.40SxtraemeOpenBSD 4.1		2007-05-01 [OBD]
5481.40SxtraemeDragonFly 1.10.0	2007-08-06 [DFB]
5491.42ShubertfMac OS X 10.5		2007-10-26 [APL]
5501.40SxtraemeOpenBSD 4.2		2007-11-01 [OBD]
5511.42ShubertfNetBSD 4.0		2007-12-19 [NBD]
5521.42ShubertfFreeBSD 6.3		2008-01-18 [FBD]
5531.42ShubertfDragonFly 1.12.0	2008-02-26 [DFB]
5541.42ShubertfFreeBSD 7.0		2008-02-27 [FBD]
5551.42ShubertfOpenBSD 4.3		2008-05-01 [OBD]
5561.42ShubertfDragonFly 2.0.0		2008-07-21 [DFB]
5571.42ShubertfOpenBSD 4.4		2008-11-01 [OBD]
5581.42ShubertfFreeBSD 6.4		2008-11-28 [FBD]
5591.42ShubertfFreeBSD 7.1		2009-01-04 [FBD]
5601.43ShubertfDragonFly 2.2.0		2009-02-17 [DFB]
5611.43ShubertfNetBSD 5.0		2009-04-29 [NBD]
5621.43ShubertfOpenBSD 4.5		2009-05-01 [OBD]
5631.43ShubertfFreeBSD 7.2		2009-05-04 [FBD]
5641.43ShubertfMac OS X 10.6		2009-06-08 [APL]
5651.47SrizNetBSD 5.0.1		2009-08-02 [NBD] (security/critical release)
5661.43ShubertfDragonFly 2.4.0		2009-09-16 [DFB]
5671.43ShubertfOpenBSD 4.6		2009-10-18 [OBD]
5681.43ShubertfFreeBSD 8.0		2009-11-26 [FBD]
5691.47SrizNetBSD 5.0.2		2010-02-12 [NBD] (security/critical release)
5701.43ShubertfFreeBSD 7.3		2010-03-23 [FBD]
5711.43ShubertfDragonFly 2.6.0		2010-03-28 [DFB]
5721.43ShubertfOpenBSD 4.7		2010-05-19 [OBD]
5731.43ShubertfFreeBSD 8.1		2010-07-24 [FBD]
5741.43ShubertfDragonFly 2.8.2		2010-10-30 [DFB]
5751.43ShubertfOpenBSD 4.8		2010-11-01 [OBD]
5761.43ShubertfNetBSD 5.1		2010-11-19 [NBD]
5771.43ShubertfFreeBSD 7.4		2011-02-24 [FBD]
5781.43ShubertfFreeBSD 8.2		2011-02-24 [FBD]
5791.43ShubertfDragonFly 2.10.1	2011-04-26 [DFB]
5801.43ShubertfOpenBSD 4.9		2011-05-01 [OBD]
5811.43ShubertfMac OS X 10.7		2011-07-20 [APL]
5821.43ShubertfOpenBSD 5.0		2011-11-01 [OBD]
5831.43ShubertfFreeBSD 9.0		2012-01-12 [FBD]
5841.47SrizNetBSD 5.1.2		2012-02-02 [NBD] (security/critical release)
5851.44SryoonDragonFly 3.0.1		2012-02-21 [DFB]
5861.45SjnemethFreeBSD 8.3		2012-04-18 [FBD]
5871.45SjnemethOpenBSD 5.1		2012-05-01 [OBD]
5881.45SjnemethMac OS X 10.8		2012-07-25 [APL]
5891.45SjnemethNetBSD 6.0		2012-10-17 [NBD]
5901.48SapbOpenBSD 5.2		2012-11-01 [OBD]
5911.48SapbDragonFly 3.2.1		2012-11-02 [DFB]
5921.49SrizNetBSD 5.2		2012-12-03 [NBD]
5931.49SrizNetBSD 6.0.1		2012-12-26 [NBD] (security/critical release)
5941.48SapbFreeBSD 9.1		2012-12-30 [FBD]
5951.48SapbDragonFly 3.4.1		2013-04-29 [DFB]
5961.48SapbOpenBSD 5.3		2013-05-01 [OBD]
5971.49SrizNetBSD 6.0.2		2013-05-18 [NBD] (security/critical release)
5981.49SrizNetBSD 6.1		2013-05-18 [NBD]
5991.52SapbFreeBSD 8.4		2013-06-07 [FBD]
6001.54SrizNetBSD 6.1.1		2013-08-22 [NBD]
6011.53SrizNetBSD 5.1.3		2013-09-29 [NBD]
6021.53SrizNetBSD 5.2.1		2013-09-29 [NBD]
6031.54SrizNetBSD 6.0.3		2013-09-30 [NBD]
6041.54SrizNetBSD 6.1.2		2013-09-30 [NBD]
6051.55SmsaitohNetBSD 6.0.4		2014-01-25 [NBD]
6061.55SmsaitohNetBSD 6.1.3		2014-01-25 [NBD]
6071.55SmsaitohNetBSD 6.0.5		2014-04-12 [NBD]
6081.55SmsaitohNetBSD 6.1.4		2014-04-12 [NBD]
6091.1Sabs
6101.1SabsBibliography
6111.1Sabs------------------------
6121.1Sabs
6131.1SabsLeffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
6141.1SabsQuarterman. The Design and Implementation of the 4.3BSD UNIX Operating
6151.1SabsSystem. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
6161.1Sabs
6171.1SabsSalus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
6181.1SabsCompany, Inc., 1994. ISBN 0-201-54777-5
6191.1Sabs
6201.1SabsMcKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
6211.1SabsQuarterman. The Design and Implementation of the 4.4BSD Operating
6221.1SabsSystem. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
6231.1Sabs
6241.23SpeterMcKusick, Marshall Kirk, George Neville-Neil. The Design and
6251.23SpeterImplementation of the FreeBSD Operating System.
6261.23SpeterAddison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
6271.23Speter
6281.1SabsDoug McIlroy. Research Unix Reader.
6291.1Sabs
6301.1SabsMichael G. Brown. The Role of BSD in the Development of Unix.
6311.1SabsPresented to the Tasmanian Unix Special Interest Group of the
6321.1SabsAustralian Computer Society, Hobart, August 1993.
6331.1Sabs
6341.6SitojunPeter H. Salus. Unix at 25. Byte Magazine, October 1994.
6351.24SsodaURL: http://www.byte.com/art/9410/sec8/art3.htm
6361.1Sabs
6371.43ShubertfAndreas Klemm, Lars Köller. If you're going to San Francisco ...
6381.1SabsDie freien BSD-Varianten von Unix. c't April 1997, page 368ff.
6391.1Sabs
6401.1SabsBSD Release Announcements collection.
6411.43ShubertfURL: http://www.FreeBSD.org/releases/
6421.1Sabs
6431.1SabsBSD Hypertext Man Pages
6441.9SitojunURL: http://www.FreeBSD.org/cgi/man.cgi
6451.6Sitojun
6461.6SitojunUNIX history graphing project
6471.9SitojunURL: http://minnie.tuhs.org/Unix_History/index.html
6481.6Sitojun
6491.6SitojunUNIX history
6501.17SjunyoungURL: http://www.levenez.com/unix/
6511.1Sabs
6521.8SitojunJames Howard: The BSD Family Tree
6531.32SrpauloURL: http://ezine.daemonnews.org/200104/bsd_family.html
6541.8Sitojun("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
6551.8Sitojun
6561.8Sitojun
6571.1SabsAcknowledgments
6581.1Sabs---------------
6591.1Sabs
6601.6SitojunJosh Gilliam for suggestions, bug fixes, and finding very old
6611.1Sabsoriginal BSD announcements from Usenet or tapes.
6621.1Sabs
6631.1SabsSteven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
6641.1Sabs
6651.1Sabs--
6661.43ShubertfCopyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
6671.22SitojunURL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
6681.1Sabs
6691.45Sjnemeth$FreeBSD$
670