 5737b690dc
			
		
	
	
		5737b690dc
		
	
	
	
	
		
			
			. for /usr/share/misc/style, NetBSD coding style . and for indent.pro (style-compatible indent(1) indenting profile)
		
			
				
	
	
		
			607 lines
		
	
	
		
			27 KiB
		
	
	
	
		
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			607 lines
		
	
	
		
			27 KiB
		
	
	
	
		
			Plaintext
		
	
	
	
	
	
| The UNIX system family tree: Research and BSD
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| ---------------------------------------------
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| 
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| First Edition (V1)
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|      |
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| Second Edition (V2)
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|      |
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| Third Edition (V3)
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|      |
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| Fourth Edition (V4)
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|      |
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| Fifth Edition (V5)
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|      |
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| Sixth Edition (V6) -----*
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|        \                |
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|         \               |
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|          \              |
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| Seventh Edition (V7)    |
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|             \           |
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|              \        1BSD
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|              32V        |
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|                \      2BSD---------------*
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|                 \    /                   |
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|                  \  /                    |
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|                   \/                     |
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|                  3BSD                    |
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|                   |                      |
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|                4.0BSD                2.79BSD
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|                   |                      |
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|                4.1BSD --------------> 2.8BSD
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|                   |                      |
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|               4.1aBSD -----------\       |
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|                   |                \     |
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|               4.1bBSD                \   |
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|                   |                    \ |
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|       *------ 4.1cBSD --------------> 2.9BSD
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|      /            |                      |
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| Eighth Edition    |                   2.9BSD-Seismo
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|      |            |                      |
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|      +----<--- 4.2BSD               2.9.1BSD
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|      |            |                      |
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|      +----<--- 4.3BSD -------------> 2.10BSD
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|      |            |               /      |
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| Ninth Edition     |              / 2.10.1BSD
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|      |         4.3BSD Tahoe-----+        |
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|      |            |              \       |
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|      |            |                \     |
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|      v            |                  2.11BSD
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| Tenth Edition     |                      |
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|                   |                  2.11BSD rev #430
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|                4.3BSD NET/1              |
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|                   |                      v
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|                4.3BSD Reno
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|                   |
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|    *---------- 4.3BSD NET/2 -------------------+-------------*
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|    |                    |                      |             |
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| 386BSD 0.0              |                      |           BSD/386 ALPHA
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|    |                    |                      |             |
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| 386BSD 0.1 ------------>+                      |           BSD/386 0.3.[13]
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|    |     \              |                  4.4BSD Alpha      |
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|    |     386BSD 1.0     |                      |           BSD/386 0.9.[34]
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|    |                    |                  4.4BSD            |
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|    |                    |                    / |             |
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|    |                    |   4.4BSD-Encumbered  |             |
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|    |                 NetBSD 0.8                |           BSD/386 1.0
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|    |                    |                      |             |
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| FreeBSD 1.0          NetBSD 0.9                |           BSD/386 1.1
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|    |                    |           .----- 4.4BSD Lite       |
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| FreeBSD 1.1             |          /   /       |     \       |
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|    |                    |         /   /        |      \      |
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| FreeBSD 1.1.5       .---|--------'   /         |       \     |
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|    |               /    |           /          |        \    |
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| FreeBSD 1.1.5.1   /     |          /           |         \   |
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|    |             /   NetBSD 1.0 <-'            |          \  |
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|    |            /       |                      |           \ |
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| FreeBSD 2.0 <--'        |                      |           BSD/OS 2.0
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|    |                     \                     |             |
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| FreeBSD 2.0.5             \                    |           BSD/OS 2.0.1
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|    |                 .-----\------------- 4.4BSD Lite2       |
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|    |                 |      \             |  |   |   |       |
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|    |                 | .-----|------Rhapsody |   |   |       |
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|    |                 | |     |        NetBSD 1.3 |   |       |
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|    |                 | |     |           OpenBSD 2.3 |       |
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|    |                 | |     |                BSD/OS 3.0     |
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| FreeBSD 2.1          | |     |                               |
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|  |   |               | |  NetBSD 1.1 ------.               BSD/OS 2.1
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|  | FreeBSD 2.1.5     | |     |              \                |
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|  |     |             | |  NetBSD 1.2         \             BSD/OS 3.0
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|  | FreeBSD 2.1.6     | |     |  \          OpenBSD 2.0       |
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|  |     |             | |     |   \             |             |
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|  | FreeBSD 2.1.6.1   | |     |    \            |             |
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|  |     |             | |     |     \           |             |
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|  | FreeBSD 2.1.7     | |     |      |          |             |
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|  |     |             | |     |  NetBSD 1.2.1   |             |
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|  | FreeBSD 2.1.7.1   | |     |                 |             |
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|  |                   | |     |                 |             |
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|  |                   | |     |                 |             |
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|  *-FreeBSD 2.2       | |     |                 |             |
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|  |        \          | |     |                 |             |
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|  |     FreeBSD 2.2.1 | |     |                 |             |
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|  |         |         | |     |                 |             |
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|  |     FreeBSD 2.2.2 | |     |             OpenBSD 2.1       |
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|  |         |         | |     |                 |             |
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|  |     FreeBSD 2.2.5 | |     |                 |             |
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|  |         |         | |     |             OpenBSD 2.2       |
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|  |         |         | |  NetBSD 1.3           |             |
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|  |     FreeBSD 2.2.6 | |     |    |            |             |
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|  |         |         | |     | NetBSD 1.3.1    |           BSD/OS 3.1
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|  |         |         | |     |    |        OpenBSD 2.3       |
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|  |         |         | |     | NetBSD 1.3.2    |             |
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|  |     FreeBSD 2.2.7 | |     |    |            |             |
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|  |         |         | |     |    |            |           BSD/OS 4.0
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|  |         v         | |     |    |            |             |
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|  |     FreeBSD 2.2.8 | |     |    |            |             |
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|  |                   | |     |    |        OpenBSD 2.4       |
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| FreeBSD 3.0 <--------* |     |    v            |             |
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|  |                     |     | NetBSD 1.3.3    |             |
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|  *---FreeBSD 3.1       |     |                 |             |
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|  |       |             |     |                 |           BSD/OS 4.0.1
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|  |   FreeBSD 3.2----*  |  NetBSD 1.4       OpenBSD 2.5       |
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|  |       |          |  |  |  |    |            |             |
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|  |       |          |  |  |  |    |            |             |
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|  |       |          |  |  |  |    |            |             |
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|  |   FreeBSD 3.3    |  |  |  | NetBSD 1.4.1    |             |
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|  |       |          |  |  |  |    |        OpenBSD 2.6       |
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|  |   FreeBSD 3.4    |  |  |  |    |            |             |
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|  |           |      |  |  |  |    |            |           BSD/OS 4.1
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| FreeBSD 4.0  |      |  |  |  | NetBSD 1.4.2    |             |
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|  |           |      |  |  |  |    |            |             |
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|  |           |      |  |  |  |    |            |             |
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|  |   FreeBSD 3.5    |  |  |  |    |        OpenBSD 2.7       |
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|  |           |      |  |  |  |    |            |             |
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|  |   FreeBSD 3.5.1  |  |  |  |    |            |             |
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|  |                  |  |  |  |    |            |             |
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|  *---FreeBSD 4.1    |  |  |  |    |            |             |
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|  |      |           |  | (?) |    |            |             |
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|  |   FreeBSD 4.1.1  |  |  /  |    |            |             |
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|  |      |           |  | /   |    |            |             |
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|  |   FreeBSD 4.2   Darwin/   | NetBSD 1.4.3    |             |
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|  |      |         Mac OS X   |             OpenBSD 2.8     BSD/OS 4.2
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|  |      |             |      |                 |             |
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|  |      |             |      |                 |             |
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|  |      |           10.0  NetBSD 1.5           |             |
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|  |   FreeBSD 4.3      |      |    |            |             |
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|  |      |             |      |    |        OpenBSD 2.9       |
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|  |      |             |      | NetBSD 1.5.1    |             |
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|  |      |             |      |    |            |             |
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|  |   FreeBSD 4.4-.    |      | NetBSD 1.5.2    |             |
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|  |      |        | Mac OS X  |    |            |             |
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|  |      |        |   10.1    |    |        OpenBSD 3.0       |
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|  |   FreeBSD 4.5 |    |      |    |            |             |
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|  |      |         \   |      |    |            |           BSD/OS 4.3
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|  |   FreeBSD 4.6   \  |      |    |        OpenBSD 3.1       |
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|  |      |           \ |      | NetBSD 1.5.3    |             |
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|  |   FreeBSD 4.6.2 Mac OS X  |                 |             |
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|  |      |            10.2    |                 |             |
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|  |   FreeBSD 4.7      |      |                 |             |
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|  |      |             |   NetBSD 1.6       OpenBSD 3.2       |
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|  |   FreeBSD 4.8      |      |    |            |             |
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|  |      |             |      | NetBSD 1.6.1    |             |
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|  |      |--------.    |      |    |        OpenBSD 3.3     BSD/OS 5.0
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|  |      |         \   |      |    |            |             |
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|  |   FreeBSD 4.9   |  |      |    |        OpenBSD 3.4     BSD/OS 5.1 ISE
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|  |      |          |  |      |    |            |
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|  |      |          |  |      | NetBSD 1.6.2    |
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|  |      |          |  |      |    |            |
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|  |      |          |  |      |    |        OpenBSD 3.5
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|  |      |          |  |      |    v            |
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|  |   FreeBSD 4.10  |  |      |                 |
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|  |      |          |  |      |                 |
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|  |   FreeBSD 4.11  |  |      |                 |
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|  |                 |  |      |                 |
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|  |                  `-|------|-----------------|---------------------.
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|  |                    |      |                 |                      \
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| FreeBSD 5.0           |      |                 |                       |
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|  |                    |      |                 |                       |
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| FreeBSD 5.1           |      |                 |                 DragonFly 1.0
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|  |          \         |      |                 |                       |
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|  |           ----- Mac OS X  |                 |                       |
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|  |                   10.3    |                 |                       |
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| FreeBSD 5.2           |      |                 |                       |
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|  |      |             |      |                 |                       |
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|  |   FreeBSD 5.2.1    |      |                 |                       |
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|  |                    |      |                 |                       |
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|  *-------FreeBSD 5.3  |      |                 |                       |
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|  |           |        |      |             OpenBSD 3.6                 |
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|  |           |        |   NetBSD 2.0           |                       |
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|  |           |        |      | |  |            |                DragonFly 1.2.0
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|  |           |     Mac OS X  | | NetBSD 2.0.2  |                       |
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|  |           |       10.4    | |  |            |                       |
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|  |       FreeBSD 5.4  |      | |  |            |                       |
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|  |           |        |      | |  |        OpenBSD 3.7                 |
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|  |           |        |      | | NetBSD 2.0.3  |                       |
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|  |           |        |      | |  |            |                       |
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|  *--FreeBSD  |        |      | |  v        OpenBSD 3.8                 |
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|  |    6.0    |        |      | |               |                       |
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|  |     |     |        |      |  \              |                       |
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|  |     |     |        |      | NetBSD 2.1      |                       |
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|  |     |     |        |      |                 |                       |
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|  |     |     |        |   NetBSD 3.0           |                       |
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|  |     |     |        |      | |  |            |                DragonFly 1.4.0
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|  |     |     |        |      | |  |        OpenBSD 3.9                 |
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|  |  FreeBSD  |        |      | |  |            |                       |
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|  |    6.1    |        |      | |  |            |                       |
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|  |     |  FreeBSD 5.5 |      | |  |            |                       |
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|  |     |              |      | | NetBSD 3.0.1  |                DragonFly 1.6.0
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|  |     |              |      | |  |            |                       |
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|  |     |              |      | |  |        OpenBSD 4.0                 |
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|  |     |              |      | | NetBSD 3.0.2  |                       |
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|  |     |              |      | NetBSD 3.1      |                       |
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|  | FreeBSD 6.2        |      |                 |                       |
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|  |     |              |      |                 |                DragonFly 1.8.0
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|  |     |              |      |             OpenBSD 4.1                 |
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|  |     |              |      |                 |                DragonFly 1.10.0
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|  |     |           Mac OS X  |                 |                       |
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|  |     |             10.5    |                 |                       |
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|  |     |              |      |             OpenBSD 4.2                 |
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|  |     |              |   NetBSD 4.0           |                       |
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|  | FreeBSD 6.3        |      |                 |                       |
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|  |            \       |      |                 |                       |
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|  *--FreeBSD    |      |      |                 |                DragonFly 1.12.0
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|  |    7.0      |      |      |                 |                       |
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|  |     |       |      |      |             OpenBSD 4.3                 |
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|  |     |       |      |      |                 |                DragonFly 2.0.0
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|  |     |    FreeBSD   |      |             OpenBSD 4.4                 |
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|  |     |      6.4     |      |                 |                       |
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|  |     |              |      |                 |                       |
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|  |  FreeBSD 7.1       |      |                 |                       |
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|  |     |              |      |                 |                DragonFly 2.2.0
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|  |  FreeBSD 7.2       |   NetBSD 5.0       OpenBSD 4.5                 |
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|  |             \      |      |    |            |                       |
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|  |              |  Mac OS X  |    |            |                       |
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|  |              |    10.6    |    |            |                       |
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|  |              |     |      |    |            |                DragonFly 2.4.0
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|  |              |     |      |    |        OpenBSD 4.6                 |
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|  |              |     |      |    |            |                       |
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|  *--FreeBSD     |     |      |    |            |                       |
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|  |    8.0       |     |      |    |            |                       |
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|  |     |     FreeBSD  |      |    |            |                       |
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|  |     |       7.3    |      |    |            |                DragonFly 2.6.0
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|  |     |        |     |      |    |        OpenBSD 4.7                 |
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|  |  FreeBSD     |     |      |    |            |                       |
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|  |    8.1       |     |      |    |            |                       |
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|  |     |        |     |      |    |            |                DragonFly 2.8.2
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|  |     |        |     |      |    |        OpenBSD 4.8                 |
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|  |     |        |     |      | NetBSD 5.1      |                       |
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|  |  FreeBSD  FreeBSD  |      |                 |                       |
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|  |    8.2      7.4    |      |                 |               DragonFly 2.10.1
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|  |     v              |      |             OpenBSD 4.9                 |
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|  |                 Mac OS X  |                 |                       |
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|  |                   10.7    |                 |                       |
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|  |                    |      |             OpenBSD 5.0                 |
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|  +--FreeBSD           |      |                 |                       |
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|  |    9.0             |      |                 |                       |
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|  |     v              |      |                 |                       |
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|  |                    |      |                 |                       |
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| FreeBSD 10 -current   |  NetBSD -current  OpenBSD -current             |
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|  |                    |      |                 |                       |
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|  v                    v      v                 v                       v
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| 
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| Time
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| ----------------
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| 
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| Time tolerance +/- 6 months, depending on which book/article you read; if it
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| was the announcement in Usenet or if it was available as tape.
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| 
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| [44B] McKusick, Marshall Kirk, Keith Bostic, Michael J Karels,
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| 	and John Quarterman. The Design and Implementation of
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| 	the 4.4BSD Operating System.
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| [APL] Apple website [http://www.apple.com/macosx/]
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| [BSDI] Berkeley Software Design, Inc.
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| [DFB] DragonFlyBSD Project, The.
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| [DOC] README, COPYRIGHT on tape.
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| [FBD] FreeBSD Project, The.
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| [KB]  Keith Bostic. BSD2.10 available from Usenix. comp.unix.sources,
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| 	Volume 11, Info 4, April, 1987.
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| [KKK] Mike Karels, Kirk McKusick, and Keith Bostic. tahoe announcement.
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| 	comp.bugs.4bsd.ucb-fixes, June 15, 1988.
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| [KSJ] Michael J. Karels, Carl F. Smith, and William F. Jolitz.
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| 	Changes in the Kernel in 2.9BSD. Second Berkeley Software
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| 	Distribution UNIX Version 2.9, July, 1983.
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| [NBD] NetBSD Project, The.
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| [OBD] OpenBSD Project, The.
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| [QCU] Salus, Peter H. A quarter century of UNIX.
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| [SMS] Steven M. Schultz. 2.11BSD, UNIX for the PDP-11.
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| [TUHS] The Unix Historical Society.  http://minnie.tuhs.org/Unix_History/.
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| [USE] Usenet announcement.
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| [WRS] Wind River Systems, Inc.
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| [dmr] Dennis Ritchie, via E-Mail
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| 
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| Multics                 1965
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| UNIX                    Summer 1969
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| 				DEC PDP-7
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| First   Edition         1971-11-03 [QCU]
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| 				DEC PDP-11/20, Assembler
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| Second  Edition         1972-06-12 [QCU]
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| 				10 UNIX installations
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| Third   Edition         1973-02-xx [QCU]
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| 				Pipes, 16 installations
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| Fourth  Edition         1973-11-xx [QCU]
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| 				rewriting in C effected,
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|                                 above 30 installations
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| Fifth   Edition         1974-06-xx [QCU]
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| 				above 50 installations
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| Sixth   Edition         1975-05-xx [QCU]
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| 				port to DEC Vax
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| Seventh Edition         1979-01-xx [QCU]
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| 				first portable UNIX
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| Eighth  Edition         1985-02-xx [QCU]
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| 				VAX 11/750, VAX 11/780 [dmr]
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| 				descended from 4.1c BSD [dmr]
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| 				descended from 4.1 BSD [44B]
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| 			scooping-out and replacement of the character-device
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| 			and networking part by the streams mechanism
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| 
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| Ninth   Edition         1986-09-xx [QCU]
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| Tenth   Edition         1989-10-xx [QCU]
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| 
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| 1BSD                    late 1977
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| 			1978-03-09 [QCU]
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| 				PDP-11, Pascal, ex(1)
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| 				30 free copies of 1BSD sent out
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| 				35 tapes sold for 50 USD [QCU]
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| 2BSD                    mid 1978 [QCU] 1979-05-10 [TUHS]
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| 				75 2BSD tapes shipped
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| 2.79BSD			1980-04-xx [TUHS]
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| 2.8BSD			1981-07-xx [KSJ]
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| 
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| 2.8.1BSD		1982-01-xx [QCU]
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| 				set of performance improvements
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| 2.9BSD			1983-07-xx [KSJ]
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| 2.9.1BSD                1983-11-xx [TUHS]
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| 2.9BSD-Seismo		1985-08-xx [SMS]
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| 2.10BSD			1987-04-xx [KKK]
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| 2.10.1BSD		1989-01-xx [SMS]
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| 2.11BSD			1992-02-xx [SMS]
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| 2.11BSD rev #430	1999-12-13 [SMS]
 | |
| 
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| 32V			1978-1[01]-xx [QCU]
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| 3BSD                    late 1979 [QCU] March 1980 [TUHS]
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| 				virtual memory, page replacement,
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|                         	demand paging
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| 4.0BSD                  1980-10-xx
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| 4.1BSD                  1981-07-08 [DOC]
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| 4.1aBSD                 1982-04-xx
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| 				alpha release, 100 sites, networking [44B]
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| 4.1bBSD				internal release, fast filesystem [44B]
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| 4.1cBSD                 late 1982
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| 				beta release, IPC [44B]
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| 4.2BSD                  1983-09-xx [QCU]
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|                         1983-08-03 [DOC]
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| 4.3BSD                  1986-06-xx [QCU]
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| 			1986-04-05 [KB], [DOC]
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| 4.3BSD Tahoe            1988-06-15 [QCU], [DOC]
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| 4.3BSD NET/1            1988-11-xx [QCU]
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|                         1989-01-01 [DOC]
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| 4.3BSD Reno             1990-06-29 [QCU], [DOC]
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| 4.3BSD NET/2            1991-06-28 [QCU], [DOC]
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| 
 | |
| BSD/386 ALPHA		1991-12-xx [BSDI]
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| 				first code released to people outside BSDI
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| 386BSD 0.0              1992-02-xx [DOC]
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| BSD/386 0.3.1	        1992-04-xx [BSDI] first ext. beta; B customers
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| BSD/386 0.3.3		1992-06-xx [BSDI] first CDROM version
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| 386BSD 0.1              1992-07-28 [DOC]
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| 4.4BSD Alpha            1992-07-07
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| BSD/386 0.9.3		1992-10-xx [BSDI]
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| 				first external gamma; G customers
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| BSD/386 0.9.4		1992-12-xx [BSDI]
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| 				would have been 1.0 except for request
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| 				for preliminary injunction
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| BSD/386 1.0 		1993-03-xx [BSDI]
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| 				injunction denied; first official release
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| NetBSD 0.8              1993-04-20 [NBD]
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| 4.4BSD                  1993-06-01 [USE]
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| NetBSD 0.9              1993-08-23 [NBD]
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| FreeBSD 1.0		1993-11-01 [FBD]
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| FreeBSD 1.0.2		1993-11-14 [FBD]
 | |
| 				supersedes 1.0 13 days after release.
 | |
| BSD/386 1.1		1994-02-xx [BSDI]
 | |
| 4.4BSD Lite             1994-03-01 [USE]
 | |
| FreeBSD 1.1		1994-05-07 [FBD]
 | |
| FreeBSD 1.1.5		1994-06-30 [FBD]
 | |
| FreeBSD 1.1.5.1		1994-07-05 [FBD]
 | |
| 				supersedes 1.1.5 5 days after release.
 | |
| NetBSD 1.0              1994-10-26 [NBD]
 | |
| 386BSD 1.0              1994-11-12 [USE]
 | |
| FreeBSD 2.0		1994-11-23 [FBD]
 | |
| BSD/OS 2.0		1995-01-xx [BSDI] 4.4 lite based
 | |
| FreeBSD 2.0.5		1995-06-10 [FBD]
 | |
| BSD/OS 2.0.1		1995-06-xx [BSDI]
 | |
| 4.4BSD Lite Release 2	1995-06-xx [44B]
 | |
| 				the true final distribution from the CSRG
 | |
| FreeBSD 2.1.0		1995-11-19 [FBD]
 | |
| NetBSD 1.1              1995-11-26 [NBD]
 | |
| BSD/OS 2.1		1996-01-xx [BSDI]
 | |
| FreeBSD 2.1.5		1996-07-14 [FBD]
 | |
| NetBSD 1.2              1996-10-04 [NBD]
 | |
| OpenBSD 2.0             1996-10-18 [OBD]
 | |
| FreeBSD 2.1.6		1996-11-16 [FBD]
 | |
| FreeBSD 2.1.6.1		1996-11-25 [FBD] (sendmail security release)
 | |
| Rhapsody		1997-xx-xx
 | |
| FreeBSD 2.1.7		1997-02-20 [FBD]
 | |
| BSD/OS 3.0		1997-02-xx [BSDI] 4.4 lite2 based
 | |
| FreeBSD 2.2.0		1997-03-16 [FBD]
 | |
| FreeBSD 2.2.1		1997-03-25 [FBD]
 | |
| FreeBSD 2.2.2		1997-05-16 [FBD]
 | |
| NetBSD 1.2.1            1997-05-20 [NBD] (patch release)
 | |
| OpenBSD 2.1             1997-06-01 [OBD]
 | |
| FreeBSD 2.2.5		1997-10-22 [FBD]
 | |
| OpenBSD 2.2             1997-12-01 [OBD]
 | |
| NetBSD 1.3              1998-01-04 [NBD]
 | |
| FreeBSD 2.2.6		1998-03-25 [FBD]
 | |
| NetBSD 1.3.1            1998-03-09 [NBD] (patch release)
 | |
| BSD/OS 3.1		1998-03-xx [BSDI]
 | |
| OpenBSD 2.3             1998-05-19 [OBD]
 | |
| NetBSD 1.3.2            1998-05-29 [NBD] (patch release)
 | |
| FreeBSD 2.2.7		1998-07-22 [FBD]
 | |
| BSD/OS 4.0		1998-08-xx [BSDI]
 | |
| 				2-lock MP support, ELF executables
 | |
| FreeBSD 3.0		1998-10-16 [FBD]
 | |
| 				FreeBSD-3.0 is a snapshot from -current,
 | |
| 				while 3.1 and 3.2 are from 3.x-stable which
 | |
| 				was branched quite some time after 3.0-release
 | |
| FreeBSD 2.2.8           1998-11-29 [FBD]
 | |
| OpenBSD 2.4             1998-12-01 [OBD]
 | |
| NetBSD 1.3.3            1998-12-23 [NBD] (patch release)
 | |
| FreeBSD 3.1		1999-02-15 [FBD]
 | |
| BSD/OS 4.0.1		1999-03-xx [BSDI]
 | |
| NetBSD 1.4              1999-05-12 [NBD]
 | |
| FreeBSD 3.2             1999-05-17 [FBD]
 | |
| OpenBSD 2.5             1999-05-19 [OBD]
 | |
| NetBSD 1.4.1            1999-08-26 [NBD] (patch release)
 | |
| FreeBSD 3.3             1999-09-17 [FBD]
 | |
| OpenBSD 2.6             1999-12-01 [OBD]
 | |
| FreeBSD 3.4             1999-12-20 [FBD]
 | |
| BSD/OS 4.1		1999-12-xx [BSDI]
 | |
| FreeBSD 4.0             2000-03-13 [FBD]
 | |
| NetBSD 1.4.2            2000-03-19 [NBD] (patch release)
 | |
| OpenBSD 2.7             2000-06-15 [OBD]
 | |
| FreeBSD 3.5		2000-06-24 [FBD]
 | |
| FreeBSD 4.1		2000-07-27 [FBD]
 | |
| FreeBSD 3.5.1		2000-07-28 [FBD]
 | |
| FreeBSD 4.1.1		2000-09-25 [FBD] (a network-only patch release)
 | |
| FreeBSD 4.2  		2000-11-21 [FBD]
 | |
| NetBSD 1.4.3		2000-11-25 [NBD] (patch release)
 | |
| BSD/OS 4.2		2000-11-29 [BSDI]
 | |
| OpenBSD 2.8		2000-12-01 [OBD]
 | |
| NetBSD 1.5              2000-12-06 [NBD]
 | |
| Mac OS X 10.0           2001-03-24 [APL]
 | |
| FreeBSD 4.3  		2001-04-20 [FBD]
 | |
| OpenBSD 2.9  		2001-06-01 [OBD]
 | |
| NetBSD 1.5.1		2001-07-11 [NBD] (patch release)
 | |
| NetBSD 1.5.2		2001-09-13 [NBD] (patch release)
 | |
| FreeBSD 4.4  		2001-09-18 [FBD]
 | |
| Mac OS X 10.1		2001-09-29 [APL]
 | |
| OpenBSD 3.0		2001-12-01 [OBD]
 | |
| FreeBSD 4.5  		2002-01-29 [FBD]
 | |
| BSD/OS 4.3		2002-03-14 [WRS]
 | |
| OpenBSD 3.1		2002-05-19 [OBD]
 | |
| FreeBSD 4.6  		2002-06-15 [FBD]
 | |
| NetBSD 1.5.3		2002-07-22 [NBD] (patch release)
 | |
| FreeBSD 4.6.2		2002-08-15 [FBD] (patch release)
 | |
| Mac OS X 10.2		2002-08-23 [APL]
 | |
| NetBSD 1.6		2002-09-14 [NBD]
 | |
| FreeBSD 4.7		2002-10-08 [FBD]
 | |
| OpenBSD 3.2		2002-11-01 [OBD]
 | |
| FreeBSD 5.0		2003-01-17 [FBD]
 | |
| 				FreeBSD 5.0 is a separate branch off of
 | |
| 				-current, similar to 3.0.
 | |
| FreeBSD 4.8		2003-04-03 [FBD]
 | |
| NetBSD 1.6.1		2003-04-21 [NBD] (patch release)
 | |
| OpenBSD 3.3		2003-05-01 [OBD]
 | |
| BSD/OS 5.0		2003-05-?? [WRS]
 | |
| FreeBSD 5.1		2003-06-09 [FBD]
 | |
| Mac OS X 10.3		2003-10-24 [APL]
 | |
| FreeBSD 4.9		2003-10-28 [FBD]
 | |
| BSD/OS 5.1 ISE		2003-10-?? [WRS] (final version)
 | |
| OpenBSD 3.4		2003-11-01 [OBD]
 | |
| FreeBSD 5.2		2004-01-12 [FBD]
 | |
| FreeBSD 5.2.1		2004-02-22 [FBD] (patch release)
 | |
| NetBSD 1.6.2		2004-03-01 [NBD] (patch release)
 | |
| OpenBSD 3.5		2004-04-01 [OBD]
 | |
| FreeBSD 4.10		2004-05-27 [FBD]
 | |
| DragonFly 1.0		2004-07-12 [DFB]
 | |
| OpenBSD 3.6		2004-10-29 [OBD]
 | |
| FreeBSD 5.3		2004-11-06 [FBD]
 | |
| NetBSD 2.0		2004-12-09 [NBD]
 | |
| FreeBSD 4.11		2005-01-25 [FBD]
 | |
| DragonFly 1.2.0		2005-04-08 [DFB]
 | |
| NetBSD 2.0.2		2005-04-14 [NBD] (security/critical release)
 | |
| Mac OS X 10.4		2005-04-29 [APL]
 | |
| FreeBSD 5.4		2005-05-09 [FBD]
 | |
| OpenBSD 3.7		2005-05-19 [OBD]
 | |
| NetBSD 2.0.3		2005-10-31 [NBD] (security/critical release)
 | |
| OpenBSD 3.8		2005-11-01 [OBD]
 | |
| FreeBSD 6.0		2005-11-01 [FBD]
 | |
| NetBSD 2.1		2005-11-02 [NBD]
 | |
| NetBSD 3.0		2005-12-23 [NBD]
 | |
| DragonFly 1.4.0		2006-01-08 [DFB]
 | |
| OpenBSD 3.9		2006-05-01 [OBD]
 | |
| FreeBSD 6.1		2006-05-08 [FBD]
 | |
| FreeBSD 5.5		2006-05-25 [FBD]
 | |
| NetBSD 3.0.1		2006-07-24 [NBD] (security/critical release)
 | |
| DragonFly 1.6.0		2006-07-24 [DFB]
 | |
| OpenBSD 4.0		2006-11-01 [OBD]
 | |
| NetBSD 3.0.2		2006-11-04 [NBD] (security/critical release)
 | |
| NetBSD 3.1		2006-11-04 [NBD]
 | |
| FreeBSD 6.2		2007-01-15 [FBD]
 | |
| DragonFly 1.8.0		2007-01-30 [DFB]
 | |
| OpenBSD 4.1		2007-05-01 [OBD]
 | |
| DragonFly 1.10.0	2007-08-06 [DFB]
 | |
| Mac OS X 10.5		2007-10-26 [APL]
 | |
| OpenBSD 4.2		2007-11-01 [OBD]
 | |
| NetBSD 4.0		2007-12-19 [NBD]
 | |
| FreeBSD 6.3		2008-01-18 [FBD]
 | |
| DragonFly 1.12.0	2008-02-26 [DFB]
 | |
| FreeBSD 7.0		2008-02-27 [FBD]
 | |
| OpenBSD 4.3		2008-05-01 [OBD]
 | |
| DragonFly 2.0.0		2008-07-21 [DFB]
 | |
| OpenBSD 4.4		2008-11-01 [OBD]
 | |
| FreeBSD 6.4		2008-11-28 [FBD]
 | |
| FreeBSD 7.1		2009-01-04 [FBD]
 | |
| DragonFly 2.2.0		2009-02-17 [DFB]
 | |
| NetBSD 5.0		2009-04-29 [NBD]
 | |
| OpenBSD 4.5		2009-05-01 [OBD]
 | |
| FreeBSD 7.2		2009-05-04 [FBD]
 | |
| Mac OS X 10.6		2009-06-08 [APL]
 | |
| DragonFly 2.4.0		2009-09-16 [DFB]
 | |
| OpenBSD 4.6		2009-10-18 [OBD]
 | |
| FreeBSD 8.0		2009-11-26 [FBD]
 | |
| FreeBSD 7.3		2010-03-23 [FBD]
 | |
| DragonFly 2.6.0		2010-03-28 [DFB]
 | |
| OpenBSD 4.7		2010-05-19 [OBD]
 | |
| FreeBSD 8.1		2010-07-24 [FBD]
 | |
| DragonFly 2.8.2		2010-10-30 [DFB]
 | |
| OpenBSD 4.8		2010-11-01 [OBD]
 | |
| NetBSD 5.1		2010-11-19 [NBD]
 | |
| FreeBSD 7.4		2011-02-24 [FBD]
 | |
| FreeBSD 8.2		2011-02-24 [FBD]
 | |
| DragonFly 2.10.1	2011-04-26 [DFB]
 | |
| OpenBSD 4.9		2011-05-01 [OBD]
 | |
| Mac OS X 10.7		2011-07-20 [APL]
 | |
| OpenBSD 5.0		2011-11-01 [OBD]
 | |
| FreeBSD 9.0		2012-01-12 [FBD]
 | |
| 
 | |
| Bibliography
 | |
| ------------------------
 | |
| 
 | |
| Leffler, Samuel J., Marshall Kirk McKusick, Michael J Karels and John
 | |
| Quarterman. The Design and Implementation of the 4.3BSD UNIX Operating
 | |
| System. Reading, Mass. Addison-Wesley, 1989. ISBN 0-201-06196-1
 | |
| 
 | |
| Salus, Peter H. A quarter century of UNIX. Addison-Wesley Publishing
 | |
| Company, Inc., 1994. ISBN 0-201-54777-5
 | |
| 
 | |
| McKusick, Marshall Kirk, Keith Bostic, Michael J Karels, and John
 | |
| Quarterman. The Design and Implementation of the 4.4BSD Operating
 | |
| System. Reading, Mass. Addison-Wesley, 1996. ISBN 0-201-54979-4
 | |
| 
 | |
| McKusick, Marshall Kirk, George Neville-Neil. The Design and
 | |
| Implementation of the FreeBSD Operating System.
 | |
| Addison-Wesley Professional, Published: Aug 2, 2004. ISBN 0-201-70245-2
 | |
| 
 | |
| Doug McIlroy. Research Unix Reader.
 | |
| 
 | |
| Michael G. Brown. The Role of BSD in the Development of Unix.
 | |
| Presented to the Tasmanian Unix Special Interest Group of the
 | |
| Australian Computer Society, Hobart, August 1993.
 | |
| 
 | |
| Peter H. Salus. Unix at 25. Byte Magazine, October 1994.
 | |
| URL: http://www.byte.com/art/9410/sec8/art3.htm
 | |
| 
 | |
| Andreas Klemm, Lars Köller. If you're going to San Francisco ...
 | |
| Die freien BSD-Varianten von Unix. c't April 1997, page 368ff.
 | |
| 
 | |
| BSD Release Announcements collection.
 | |
| URL: http://www.FreeBSD.org/releases/
 | |
| 
 | |
| BSD Hypertext Man Pages
 | |
| URL: http://www.FreeBSD.org/cgi/man.cgi
 | |
| 
 | |
| UNIX history graphing project
 | |
| URL: http://minnie.tuhs.org/Unix_History/index.html
 | |
| 
 | |
| UNIX history
 | |
| URL: http://www.levenez.com/unix/
 | |
| 
 | |
| James Howard: The BSD Family Tree
 | |
| URL: http://ezine.daemonnews.org/200104/bsd_family.html
 | |
| ("what are the differences between FreeBSD, NetBSD, and OpenBSD?")
 | |
| 
 | |
| 
 | |
| Acknowledgments
 | |
| ---------------
 | |
| 
 | |
| Josh Gilliam for suggestions, bug fixes, and finding very old
 | |
| original BSD announcements from Usenet or tapes.
 | |
| 
 | |
| Steven M. Schultz for providing 2.8BSD, 2.10BSD, 2.11BSD manual pages.
 | |
| 
 | |
| --
 | |
| Copyright (c) 1997-2012 Wolfram Schneider <wosch@FreeBSD.ORG>
 | |
| URL: http://cvsweb.freebsd.org/src/share/misc/bsd-family-tree
 | |
| 
 | |
| $FreeBSD: src/share/misc/bsd-family-tree,v 1.150 2012/01/13 06:18:23 maxim Exp $
 |