Series Stable Since
CWB 3.0 35
TCS Modern 13
OCS 2.Oi35
SCS 1.6 14

Game Stable Since
ITQF 34
TatC 23
AF 7
BV 12
BRS 7
EAW 9
Pville 34
NBPtD 20
AH 34
ChH 22
GM 31
B110 23
OS 7
Omaha 4
Matanikau 13
GD'40 21
HftS 17
BW 19
Leros 27
GD'41 34
SF 28
RS 28
FEW 3
GB 7
EatG 24
Tunisia 32
Hube's 35
DAK 35
SPII 35
Afrika 30
Ardennes 35
YK 20
Crusader 35
Gazala 33
Austerlitz 12
Marengo22

(Numbers indicate the issue of Operations containing each game's most recent errata listing.) B>Standard Rule for All Series:

A unit cannot move from hex A to hex B unless it could also move from hex B to hex A. This rule applies to ability as determined by terrain prohibited to some or all unit types, not MP cost.

For example, a unit prohibited from entering mountains may not move from a mountain hex to a clear hex through a non-road, non-rail, non-track hexside.