1
/* courtesy Ian Darwin and Geoff Collyer, Softquad Inc. */
4
"5th Edition" -> "6th Edition";
5
"5th Edition" -> "PWB 1.0";
6
"6th Edition" -> "LSX";
7
"6th Edition" -> "1 BSD";
8
"6th Edition" -> "Mini Unix";
9
"6th Edition" -> "Wollongong";
10
"6th Edition" -> "Interdata";
11
"Interdata" -> "Unix/TS 3.0";
12
"Interdata" -> "PWB 2.0";
13
"Interdata" -> "7th Edition";
14
"7th Edition" -> "8th Edition";
15
"7th Edition" -> "32V";
16
"7th Edition" -> "V7M";
17
"7th Edition" -> "Ultrix-11";
18
"7th Edition" -> "Xenix";
19
"7th Edition" -> "UniPlus+";
21
"8th Edition" -> "9th Edition";
24
"2.8 BSD" -> "Ultrix-11";
25
"2.8 BSD" -> "2.9 BSD";
29
"4.1 BSD" -> "4.2 BSD";
30
"4.1 BSD" -> "2.8 BSD";
31
"4.1 BSD" -> "8th Edition";
32
"4.2 BSD" -> "4.3 BSD";
33
"4.2 BSD" -> "Ultrix-32";
34
"PWB 1.0" -> "PWB 1.2";
35
"PWB 1.0" -> "USG 1.0";
36
"PWB 1.2" -> "PWB 2.0";
37
"USG 1.0" -> "CB Unix 1";
38
"USG 1.0" -> "USG 2.0";
39
"CB Unix 1" -> "CB Unix 2";
40
"CB Unix 2" -> "CB Unix 3";
41
"CB Unix 3" -> "Unix/TS++";
42
"CB Unix 3" -> "PDP-11 Sys V";
43
"USG 2.0" -> "USG 3.0";
44
"USG 3.0" -> "Unix/TS 3.0";
45
"PWB 2.0" -> "Unix/TS 3.0";
46
"Unix/TS 1.0" -> "Unix/TS 3.0";
47
"Unix/TS 3.0" -> "TS 4.0";
48
"Unix/TS++" -> "TS 4.0";
49
"CB Unix 3" -> "TS 4.0";
50
"TS 4.0" -> "System V.0";
51
"System V.0" -> "System V.2";
52
"System V.2" -> "System V.3";