bsd-family-tree revision 1.56
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      |                       |
2591.56Smsaitoh |     |       |      |      | |      |        |                       |
2601.56Smsaitoh |     |       |      |      | |   NetBSD      |                       |
2611.56Smsaitoh |     |       |      |      | |    5.1.4      |                       |
2621.53Sriz |     |       |      |      | |           OpenBSD 5.1                 |
2631.51Sapb |     |       |   Mac OS X  | `----.          |                       |
2641.51Sapb |     |       |     10.8    |       \         |                       |
2651.51Sapb |     |       |      |   NetBSD 6.0  |        |                       |
2661.51Sapb |     |       |      |      | | |    |    OpenBSD 5.2         DragonFly 3.2.1
2671.51Sapb |  FreeBSD    |      |      | | | NetBSD      |                       |
2681.51Sapb |    9.1      |      |      | | |   5.2       |                       |
2691.56Smsaitoh |     |       |      |      | | |    |        |                       |
2701.56Smsaitoh |     |       |      |      | | | NetBSD      |                       |
2711.56Smsaitoh |     |       |      |      | | |  5.2.1      |                       |
2721.56Smsaitoh |     |       |      |      | | |    |        |                       |
2731.56Smsaitoh |     |       |      |      | | | NetBSD      |                       |
2741.56Smsaitoh |     |       |      |      | | |  5.2.2      |                       |
2751.56Smsaitoh |     |       |      |      | | |             |                       |
2761.56Smsaitoh |     |       |      |      | |  \            |                       |
2771.56Smsaitoh |     |       |      |      | |   NetBSD      |                       |
2781.56Smsaitoh |     |       |      |      | |    6.0.1      |                       |
2791.56Smsaitoh |     |       |      |      | |      |   OpenBSD 5.3          DragonFly 3.4.1
2801.56Smsaitoh |     |       |      |      | |   NetBSD      |                       |
2811.56Smsaitoh |     |       |      |      | |    6.0.2      |                       |
2821.56Smsaitoh |     |       |      |      | |      |        |                       |
2831.56Smsaitoh |     |       |      |      | |  NetBSD 6.0.3 |                       |
2841.56Smsaitoh |     |       |      |      | |      |        |                       |
2851.56Smsaitoh |     |       |      |      | |  NetBSD 6.0.4 |                       |
2861.56Smsaitoh |     |       |      |      | |      |        |                       |
2871.56Smsaitoh |     |       |      |      | |  NetBSD 6.0.5 |                       |
2881.56Smsaitoh |     |       |      |      | |               |                       |
2891.56Smsaitoh |     |       |      |      |  `-NetBSD 6.1   |                       |
2901.56Smsaitoh |     |    FreeBSD   |      |       |         |                       |
2911.56Smsaitoh |     |      8.4     |      |    NetBSD 6.1.1 |                       |
2921.56Smsaitoh |     |              |      |       |         |                       |
2931.56Smsaitoh |  FreeBSD           |      |    NetBSD 6.1.2 |                       |
2941.56Smsaitoh |    9.2          Mac OS X  |       |         |                       |
2951.56Smsaitoh |                   10.9    |       |    OpenBSD 5.4                  |
2961.56Smsaitoh |                    |      |       |         |               DragonFly 3.6.0
2971.56Smsaitoh |                    |      |       |         |                       |
2981.56Smsaitoh *--FreeBSD           |      |    NetBSD 6.1.3 |                       |
2991.56Smsaitoh |   10.0             |      |       |         |                       |
3001.55Smsaitoh |                    |      |    NetBSD 6.1.4 |                       |
3011.42Shubertf |                    |      |                 |                       |
3021.56Smsaitoh |                    |      |                 |               DragonFly 3.6.1
3031.56Smsaitoh |                    |      |            OpenBSD 5.5                  |
3041.56Smsaitoh |                    |      |                 |                       |
3051.56SmsaitohFreeBSD 11 -current   |  NetBSD -current  OpenBSD -current   DragonFly -current
3061.23Speter |                    |      |                 |                       |
3071.23Speter v                    v      v                 v                       v
3081.1Sabs
3091.1SabsTime
3101.1Sabs----------------
3111.1Sabs
3121.7SitojunTime tolerance +/- 6 months, depending on which book/article you read; if it
3131.7Sitojunwas the announcement in Usenet or if it was available as tape.
3141.1Sabs
3151.1Sabs[44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
3161.1Sabs	and John Quarterman. The Design and Implementation of
3171.1Sabs	the 4.4BSD Operating System.
3181.11Sitojun[APL] Apple website [http://www.apple.com/macosx/]
3191.17Sjunyoung[BSDI] Berkeley Software Design, Inc.
3201.24Ssoda[DFB] DragonFlyBSD Project, The.
3211.1Sabs[DOC] README, COPYRIGHT on tape.
3221.17Sjunyoung[FBD] FreeBSD Project, The.
3231.1Sabs[KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
3241.1Sabs	Volume 11, Info 4, April, 1987.
3251.1Sabs[KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
3261.1Sabs	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
3271.17Sjunyoung[KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
3281.17Sjunyoung	Changes in the Kernel in 2.9BSD. Second Berkeley Software
3291.17Sjunyoung	Distribution UNIX Version 2.9, July, 1983.
3301.1Sabs[NBD] NetBSD Project, The.
3311.1Sabs[OBD] OpenBSD Project, The.
3321.17Sjunyoung[QCU] Salus, Peter H. A quarter century of UNIX.
3331.17Sjunyoung[SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
3341.43Shubertf[TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
3351.17Sjunyoung[USE] Usenet announcement.
3361.17Sjunyoung[WRS] Wind River Systems, Inc.
3371.1Sabs[dmr] Dennis Ritchie, via E-Mail
3381.1Sabs
3391.1SabsMultics                 1965
3401.6SitojunUNIX                    Summer 1969
3411.1Sabs				DEC PDP-7
3421.1SabsFirst   Edition         1971-11-03 [QCU]
3431.1Sabs				DEC PDP-11/20, Assembler
3441.1SabsSecond  Edition         1972-06-12 [QCU]
3451.6Sitojun				10 UNIX installations
3461.1SabsThird   Edition         1973-02-xx [QCU]
3471.1Sabs				Pipes, 16 installations
3481.1SabsFourth  Edition         1973-11-xx [QCU]
3491.1Sabs				rewriting in C effected,
3501.1Sabs                                above 30 installations
3511.1SabsFifth   Edition         1974-06-xx [QCU]
3521.1Sabs				above 50 installations
3531.1SabsSixth   Edition         1975-05-xx [QCU]
3541.1Sabs				port to DEC Vax
3551.1SabsSeventh Edition         1979-01-xx [QCU]
3561.6Sitojun				first portable UNIX
3571.6SitojunEighth  Edition         1985-02-xx [QCU]
3581.1Sabs				VAX 11/750, VAX 11/780 [dmr]
3591.1Sabs				descended from 4.1c BSD [dmr]
3601.1Sabs				descended from 4.1 BSD [44B]
3611.7Sitojun			scooping-out and replacement of the character-device
3621.1Sabs			and networking part by the streams mechanism
3631.1Sabs
3641.1SabsNinth   Edition         1986-09-xx [QCU]
3651.1SabsTenth   Edition         1989-10-xx [QCU]
3661.1Sabs
3671.1Sabs1BSD                    late 1977
3681.1Sabs			1978-03-09 [QCU]
3691.1Sabs				PDP-11, Pascal, ex(1)
3701.1Sabs				30 free copies of 1BSD sent out
3711.1Sabs				35 tapes sold for 50 USD [QCU]
3721.43Shubertf2BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
3731.1Sabs				75 2BSD tapes shipped
3741.43Shubertf2.79BSD			1980-04-xx [TUHS]
3751.1Sabs2.8BSD			1981-07-xx [KSJ]
3761.1Sabs
3771.1Sabs2.8.1BSD		1982-01-xx [QCU]
3781.1Sabs				set of performance improvements
3791.1Sabs2.9BSD			1983-07-xx [KSJ]
3801.43Shubertf2.9.1BSD                1983-11-xx [TUHS]
3811.1Sabs2.9BSD-Seismo		1985-08-xx [SMS]
3821.1Sabs2.10BSD			1987-04-xx [KKK]
3831.1Sabs2.10.1BSD		1989-01-xx [SMS]
3841.1Sabs2.11BSD			1992-02-xx [SMS]
3851.6Sitojun2.11BSD rev #430	1999-12-13 [SMS]
3861.1Sabs
3871.1Sabs32V			1978-1[01]-xx [QCU]
3881.43Shubertf3BSD                    late 1979 [QCU] March 1980 [TUHS]
3891.1Sabs				virtual memory, page replacement,
3901.1Sabs                        	demand paging
3911.1Sabs4.0BSD                  1980-10-xx
3921.13Sjunyoung4.1BSD                  1981-07-08 [DOC]
3931.1Sabs4.1aBSD                 1982-04-xx
3941.1Sabs				alpha release, 100 sites, networking [44B]
3951.1Sabs4.1bBSD				internal release, fast filesystem [44B]
3961.1Sabs4.1cBSD                 late 1982
3971.1Sabs				beta release, IPC [44B]
3981.1Sabs4.2BSD                  1983-09-xx [QCU]
3991.13Sjunyoung                        1983-08-03 [DOC]
4001.1Sabs4.3BSD                  1986-06-xx [QCU]
4011.13Sjunyoung			1986-04-05 [KB], [DOC]
4021.13Sjunyoung4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
4031.1Sabs4.3BSD NET/1            1988-11-xx [QCU]
4041.13Sjunyoung                        1989-01-01 [DOC]
4051.13Sjunyoung4.3BSD Reno             1990-06-29 [QCU], [DOC]
4061.13Sjunyoung4.3BSD NET/2            1991-06-28 [QCU], [DOC]
4071.7Sitojun
4081.7SitojunBSD/386 ALPHA		1991-12-xx [BSDI]
4091.7Sitojun				first code released to people outside BSDI
4101.1Sabs386BSD 0.0              1992-02-xx [DOC]
4111.7SitojunBSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
4121.7SitojunBSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
4131.7Sitojun386BSD 0.1              1992-07-28 [DOC]
4141.1Sabs4.4BSD Alpha            1992-07-07
4151.7SitojunBSD/386 0.9.3		1992-10-xx [BSDI]
4161.7Sitojun				first external gamma; G customers
4171.7SitojunBSD/386 0.9.4		1992-12-xx [BSDI]
4181.7Sitojun				would have been 1.0 except for request
4191.7Sitojun				for preliminary injunction
4201.7SitojunBSD/386 1.0 		1993-03-xx [BSDI]
4211.7Sitojun				injunction denied; first official release
4221.6SitojunNetBSD 0.8              1993-04-20 [NBD]
4231.1Sabs4.4BSD                  1993-06-01 [USE]
4241.1SabsNetBSD 0.9              1993-08-23 [NBD]
4251.8SitojunFreeBSD 1.0		1993-11-01 [FBD]
4261.40SxtraemeFreeBSD 1.0.2		1993-11-14 [FBD]
4271.40Sxtraeme				supersedes 1.0 13 days after release.
4281.7SitojunBSD/386 1.1		1994-02-xx [BSDI]
4291.1Sabs4.4BSD Lite             1994-03-01 [USE]
4301.24SsodaFreeBSD 1.1		1994-05-07 [FBD]
4311.24SsodaFreeBSD 1.1.5		1994-06-30 [FBD]
4321.24SsodaFreeBSD 1.1.5.1		1994-07-05 [FBD]
4331.24Ssoda				supersedes 1.1.5 5 days after release.
4341.6SitojunNetBSD 1.0              1994-10-26 [NBD]
4351.1Sabs386BSD 1.0              1994-11-12 [USE]
4361.24SsodaFreeBSD 2.0		1994-11-23 [FBD]
4371.7SitojunBSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
4381.7SitojunFreeBSD 2.0.5		1995-06-10 [FBD]
4391.7SitojunBSD/OS 2.0.1		1995-06-xx [BSDI]
4401.6Sitojun4.4BSD Lite Release 2	1995-06-xx [44B]
4411.6Sitojun				the true final distribution from the CSRG
4421.7SitojunFreeBSD 2.1.0		1995-11-19 [FBD]
4431.1SabsNetBSD 1.1              1995-11-26 [NBD]
4441.7SitojunBSD/OS 2.1		1996-01-xx [BSDI]
4451.7SitojunFreeBSD 2.1.5		1996-07-14 [FBD]
4461.1SabsNetBSD 1.2              1996-10-04 [NBD]
4471.1SabsOpenBSD 2.0             1996-10-18 [OBD]
4481.7SitojunFreeBSD 2.1.6		1996-11-16 [FBD]
4491.7SitojunFreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
4501.11SitojunRhapsody		1997-xx-xx
4511.7SitojunFreeBSD 2.1.7		1997-02-20 [FBD]
4521.7SitojunBSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
4531.7SitojunFreeBSD 2.2.0		1997-03-16 [FBD]
4541.7SitojunFreeBSD 2.2.1		1997-03-25 [FBD]
4551.7SitojunFreeBSD 2.2.2		1997-05-16 [FBD]
4561.6SitojunNetBSD 1.2.1            1997-05-20 [NBD] (patch release)
4571.1SabsOpenBSD 2.1             1997-06-01 [OBD]
4581.7SitojunFreeBSD 2.2.5		1997-10-22 [FBD]
4591.1SabsOpenBSD 2.2             1997-12-01 [OBD]
4601.5SabsNetBSD 1.3              1998-01-04 [NBD]
4611.7SitojunFreeBSD 2.2.6		1998-03-25 [FBD]
4621.6SitojunNetBSD 1.3.1            1998-03-09 [NBD] (patch release)
4631.7SitojunBSD/OS 3.1		1998-03-xx [BSDI]
4641.1SabsOpenBSD 2.3             1998-05-19 [OBD]
4651.6SitojunNetBSD 1.3.2            1998-05-29 [NBD] (patch release)
4661.7SitojunFreeBSD 2.2.7		1998-07-22 [FBD]
4671.7SitojunBSD/OS 4.0		1998-08-xx [BSDI]
4681.7Sitojun				2-lock MP support, ELF executables
4691.6SitojunFreeBSD 3.0		1998-10-16 [FBD]
4701.7Sitojun				FreeBSD-3.0 is a snapshot from -current,
4711.7Sitojun				while 3.1 and 3.2 are from 3.x-stable which
4721.6Sitojun				was branched quite some time after 3.0-release
4731.1SabsFreeBSD 2.2.8           1998-11-29 [FBD]
4741.1SabsOpenBSD 2.4             1998-12-01 [OBD]
4751.6SitojunNetBSD 1.3.3            1998-12-23 [NBD] (patch release)
4761.6SitojunFreeBSD 3.1		1999-02-15 [FBD]
4771.7SitojunBSD/OS 4.0.1		1999-03-xx [BSDI]
4781.4SabsNetBSD 1.4              1999-05-12 [NBD]
4791.6SitojunFreeBSD 3.2             1999-05-17 [FBD]
4801.4SabsOpenBSD 2.5             1999-05-19 [OBD]
4811.6SitojunNetBSD 1.4.1            1999-08-26 [NBD] (patch release)
4821.6SitojunFreeBSD 3.3             1999-09-17 [FBD]
4831.6SitojunOpenBSD 2.6             1999-12-01 [OBD]
4841.6SitojunFreeBSD 3.4             1999-12-20 [FBD]
4851.7SitojunBSD/OS 4.1		1999-12-xx [BSDI]
4861.6SitojunFreeBSD 4.0             2000-03-13 [FBD]
4871.6SitojunNetBSD 1.4.2            2000-03-19 [NBD] (patch release)
4881.6SitojunOpenBSD 2.7             2000-06-15 [OBD]
4891.6SitojunFreeBSD 3.5		2000-06-24 [FBD]
4901.6SitojunFreeBSD 4.1		2000-07-27 [FBD]
4911.6SitojunFreeBSD 3.5.1		2000-07-28 [FBD]
4921.6SitojunFreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
4931.7SitojunFreeBSD 4.2  		2000-11-21 [FBD]
4941.7SitojunNetBSD 1.4.3		2000-11-25 [NBD] (patch release)
4951.7SitojunBSD/OS 4.2		2000-11-29 [BSDI]
4961.7SitojunOpenBSD 2.8		2000-12-01 [OBD]
4971.7SitojunNetBSD 1.5              2000-12-06 [NBD]
4981.11SitojunMac OS X 10.0           2001-03-24 [APL]
4991.8SitojunFreeBSD 4.3  		2001-04-20 [FBD]
5001.8SitojunOpenBSD 2.9  		2001-06-01 [OBD]
5011.11SitojunNetBSD 1.5.1		2001-07-11 [NBD] (patch release)
5021.11SitojunNetBSD 1.5.2		2001-09-13 [NBD] (patch release)
5031.11SitojunFreeBSD 4.4  		2001-09-18 [FBD]
5041.17SjunyoungMac OS X 10.1		2001-09-29 [APL]
5051.13SjunyoungOpenBSD 3.0		2001-12-01 [OBD]
5061.13SjunyoungFreeBSD 4.5  		2002-01-29 [FBD]
5071.17SjunyoungBSD/OS 4.3		2002-03-14 [WRS]
5081.17SjunyoungOpenBSD 3.1		2002-05-19 [OBD]
5091.17SjunyoungFreeBSD 4.6  		2002-06-15 [FBD]
5101.14SjunyoungNetBSD 1.5.3		2002-07-22 [NBD] (patch release)
5111.17SjunyoungFreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
5121.17SjunyoungMac OS X 10.2		2002-08-23 [APL]
5131.17SjunyoungNetBSD 1.6		2002-09-14 [NBD]
5141.17SjunyoungFreeBSD 4.7		2002-10-08 [FBD]
5151.19SwizOpenBSD 3.2		2002-11-01 [OBD]
5161.20SitojunFreeBSD 5.0		2003-01-17 [FBD]
5171.20Sitojun				FreeBSD 5.0 is a separate branch off of
5181.20Sitojun				-current, similar to 3.0.
5191.20SitojunFreeBSD 4.8		2003-04-03 [FBD]
5201.20SitojunNetBSD 1.6.1		2003-04-21 [NBD] (patch release)
5211.20SitojunOpenBSD 3.3		2003-05-01 [OBD]
5221.21ScjepBSD/OS 5.0		2003-05-?? [WRS]
5231.21ScjepFreeBSD 5.1		2003-06-09 [FBD]
5241.23SpeterMac OS X 10.3		2003-10-24 [APL]
5251.23SpeterFreeBSD 4.9		2003-10-28 [FBD]
5261.23SpeterBSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
5271.23SpeterOpenBSD 3.4		2003-11-01 [OBD]
5281.23SpeterFreeBSD 5.2		2004-01-12 [FBD]
5291.23SpeterFreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
5301.23SpeterNetBSD 1.6.2		2004-03-01 [NBD] (patch release)
5311.23SpeterOpenBSD 3.5		2004-04-01 [OBD]
5321.23SpeterFreeBSD 4.10		2004-05-27 [FBD]
5331.24SsodaDragonFly 1.0		2004-07-12 [DFB]
5341.23SpeterOpenBSD 3.6		2004-10-29 [OBD]
5351.23SpeterFreeBSD 5.3		2004-11-06 [FBD]
5361.23SpeterNetBSD 2.0		2004-12-09 [NBD]
5371.23SpeterFreeBSD 4.11		2005-01-25 [FBD]
5381.24SsodaDragonFly 1.2.0		2005-04-08 [DFB]
5391.26SsodaNetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
5401.24SsodaMac OS X 10.4		2005-04-29 [APL]
5411.24SsodaFreeBSD 5.4		2005-05-09 [FBD]
5421.24SsodaOpenBSD 3.7		2005-05-19 [OBD]
5431.28SrpauloNetBSD 2.0.3		2005-10-31 [NBD] (security/critical release)
5441.27SrpauloOpenBSD 3.8		2005-11-01 [OBD]
5451.29SrpauloFreeBSD 6.0		2005-11-01 [FBD]
5461.28SrpauloNetBSD 2.1		2005-11-02 [NBD]
5471.30SrpauloNetBSD 3.0		2005-12-23 [NBD]
5481.30SrpauloDragonFly 1.4.0		2006-01-08 [DFB]
5491.34SrpauloOpenBSD 3.9		2006-05-01 [OBD]
5501.35SrpauloFreeBSD 6.1		2006-05-08 [FBD]
5511.35SrpauloFreeBSD 5.5		2006-05-25 [FBD]
5521.36SrpauloNetBSD 3.0.1		2006-07-24 [NBD] (security/critical release)
5531.37SrpauloDragonFly 1.6.0		2006-07-24 [DFB]
5541.38SrpauloOpenBSD 4.0		2006-11-01 [OBD]
5551.38SrpauloNetBSD 3.0.2		2006-11-04 [NBD] (security/critical release)
5561.38SrpauloNetBSD 3.1		2006-11-04 [NBD]
5571.39SrpauloFreeBSD 6.2		2007-01-15 [FBD]
5581.39SrpauloDragonFly 1.8.0		2007-01-30 [DFB]
5591.40SxtraemeOpenBSD 4.1		2007-05-01 [OBD]
5601.40SxtraemeDragonFly 1.10.0	2007-08-06 [DFB]
5611.42ShubertfMac OS X 10.5		2007-10-26 [APL]
5621.40SxtraemeOpenBSD 4.2		2007-11-01 [OBD]
5631.42ShubertfNetBSD 4.0		2007-12-19 [NBD]
5641.42ShubertfFreeBSD 6.3		2008-01-18 [FBD]
5651.42ShubertfDragonFly 1.12.0	2008-02-26 [DFB]
5661.42ShubertfFreeBSD 7.0		2008-02-27 [FBD]
5671.42ShubertfOpenBSD 4.3		2008-05-01 [OBD]
5681.42ShubertfDragonFly 2.0.0		2008-07-21 [DFB]
5691.42ShubertfOpenBSD 4.4		2008-11-01 [OBD]
5701.42ShubertfFreeBSD 6.4		2008-11-28 [FBD]
5711.42ShubertfFreeBSD 7.1		2009-01-04 [FBD]
5721.43ShubertfDragonFly 2.2.0		2009-02-17 [DFB]
5731.43ShubertfNetBSD 5.0		2009-04-29 [NBD]
5741.43ShubertfOpenBSD 4.5		2009-05-01 [OBD]
5751.43ShubertfFreeBSD 7.2		2009-05-04 [FBD]
5761.43ShubertfMac OS X 10.6		2009-06-08 [APL]
5771.47SrizNetBSD 5.0.1		2009-08-02 [NBD] (security/critical release)
5781.43ShubertfDragonFly 2.4.0		2009-09-16 [DFB]
5791.43ShubertfOpenBSD 4.6		2009-10-18 [OBD]
5801.43ShubertfFreeBSD 8.0		2009-11-26 [FBD]
5811.47SrizNetBSD 5.0.2		2010-02-12 [NBD] (security/critical release)
5821.43ShubertfFreeBSD 7.3		2010-03-23 [FBD]
5831.43ShubertfDragonFly 2.6.0		2010-03-28 [DFB]
5841.43ShubertfOpenBSD 4.7		2010-05-19 [OBD]
5851.43ShubertfFreeBSD 8.1		2010-07-24 [FBD]
5861.43ShubertfDragonFly 2.8.2		2010-10-30 [DFB]
5871.43ShubertfOpenBSD 4.8		2010-11-01 [OBD]
5881.43ShubertfNetBSD 5.1		2010-11-19 [NBD]
5891.43ShubertfFreeBSD 7.4		2011-02-24 [FBD]
5901.43ShubertfFreeBSD 8.2		2011-02-24 [FBD]
5911.43ShubertfDragonFly 2.10.1	2011-04-26 [DFB]
5921.43ShubertfOpenBSD 4.9		2011-05-01 [OBD]
5931.43ShubertfMac OS X 10.7		2011-07-20 [APL]
5941.43ShubertfOpenBSD 5.0		2011-11-01 [OBD]
5951.43ShubertfFreeBSD 9.0		2012-01-12 [FBD]
5961.47SrizNetBSD 5.1.2		2012-02-02 [NBD] (security/critical release)
5971.44SryoonDragonFly 3.0.1		2012-02-21 [DFB]
5981.45SjnemethFreeBSD 8.3		2012-04-18 [FBD]
5991.45SjnemethOpenBSD 5.1		2012-05-01 [OBD]
6001.45SjnemethMac OS X 10.8		2012-07-25 [APL]
6011.45SjnemethNetBSD 6.0		2012-10-17 [NBD]
6021.48SapbOpenBSD 5.2		2012-11-01 [OBD]
6031.48SapbDragonFly 3.2.1		2012-11-02 [DFB]
6041.49SrizNetBSD 5.2		2012-12-03 [NBD]
6051.49SrizNetBSD 6.0.1		2012-12-26 [NBD] (security/critical release)
6061.48SapbFreeBSD 9.1		2012-12-30 [FBD]
6071.48SapbDragonFly 3.4.1		2013-04-29 [DFB]
6081.48SapbOpenBSD 5.3		2013-05-01 [OBD]
6091.49SrizNetBSD 6.0.2		2013-05-18 [NBD] (security/critical release)
6101.49SrizNetBSD 6.1		2013-05-18 [NBD]
6111.52SapbFreeBSD 8.4		2013-06-07 [FBD]
6121.54SrizNetBSD 6.1.1		2013-08-22 [NBD]
6131.53SrizNetBSD 5.1.3		2013-09-29 [NBD]
6141.53SrizNetBSD 5.2.1		2013-09-29 [NBD]
6151.56SmsaitohFreeBSD 9.2		2013-09-30 [FBD]
6161.54SrizNetBSD 6.0.3		2013-09-30 [NBD]
6171.54SrizNetBSD 6.1.2		2013-09-30 [NBD]
6181.56SmsaitohMac OS X 10.9		2013-10-22 [APL]
6191.56SmsaitohOpenBSD 5.4		2013-11-01 [OBD]
6201.56SmsaitohDragonFly 3.6.0 	2013-11-25 [DFB]
6211.56SmsaitohFreeBSD 10.0		2014-01-20 [FBD]
6221.56SmsaitohNetBSD 5.1.4		2014-01-25 [NBD]
6231.56SmsaitohNetBSD 5.2.2		2014-01-25 [NBD]
6241.55SmsaitohNetBSD 6.0.4		2014-01-25 [NBD]
6251.55SmsaitohNetBSD 6.1.3		2014-01-25 [NBD]
6261.56SmsaitohDragonFly 3.6.1 	2014-02-22 [DFB]
6271.55SmsaitohNetBSD 6.0.5		2014-04-12 [NBD]
6281.55SmsaitohNetBSD 6.1.4		2014-04-12 [NBD]
6291.56SmsaitohOpenBSD 5.5		2014-05-01 [OBD]
6301.1Sabs
6311.1SabsBibliography
6321.1Sabs------------------------
6331.1Sabs
6341.1SabsLeffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
6351.1SabsQuarterman. The Design and Implementation of the 4.3BSD UNIX Operating
6361.1SabsSystem. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
6371.1Sabs
6381.1SabsSalus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
6391.1SabsCompany, Inc., 1994. ISBN 0-201-54777-5
6401.1Sabs
6411.1SabsMcKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
6421.1SabsQuarterman. The Design and Implementation of the 4.4BSD Operating
6431.1SabsSystem. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
6441.1Sabs
6451.23SpeterMcKusick, Marshall Kirk, George Neville-Neil. The Design and
6461.23SpeterImplementation of the FreeBSD Operating System.
6471.23SpeterAddison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
6481.23Speter
6491.1SabsDoug McIlroy. Research Unix Reader.
6501.1Sabs
6511.1SabsMichael G. Brown. The Role of BSD in the Development of Unix.
6521.1SabsPresented to the Tasmanian Unix Special Interest Group of the
6531.1SabsAustralian Computer Society, Hobart, August 1993.
6541.1Sabs
6551.6SitojunPeter H. Salus. Unix at 25. Byte Magazine, October 1994.
6561.24SsodaURL: http://www.byte.com/art/9410/sec8/art3.htm
6571.1Sabs
6581.43ShubertfAndreas Klemm, Lars Köller. If you're going to San Francisco ...
6591.1SabsDie freien BSD-Varianten von Unix. c't April 1997, page 368ff.
6601.1Sabs
6611.1SabsBSD Release Announcements collection.
6621.43ShubertfURL: http://www.FreeBSD.org/releases/
6631.1Sabs
6641.1SabsBSD Hypertext Man Pages
6651.9SitojunURL: http://www.FreeBSD.org/cgi/man.cgi
6661.6Sitojun
6671.6SitojunUNIX history graphing project
6681.9SitojunURL: http://minnie.tuhs.org/Unix_History/index.html
6691.6Sitojun
6701.6SitojunUNIX history
6711.17SjunyoungURL: http://www.levenez.com/unix/
6721.1Sabs
6731.8SitojunJames Howard: The BSD Family Tree
6741.32SrpauloURL: http://ezine.daemonnews.org/200104/bsd_family.html
6751.8Sitojun("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
6761.8Sitojun
6771.8Sitojun
6781.1SabsAcknowledgments
6791.1Sabs---------------
6801.1Sabs
6811.6SitojunJosh Gilliam for suggestions, bug fixes, and finding very old
6821.1Sabsoriginal BSD announcements from Usenet or tapes.
6831.1Sabs
6841.1SabsSteven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
6851.1Sabs
6861.1Sabs--
6871.43ShubertfCopyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
6881.56SmsaitohURL: http://svnweb.freebsd.org/base/head/share/misc/bsd-family-tree
6891.1Sabs
6901.45Sjnemeth$FreeBSD$
691