Quote Originally Posted by Slider6977
Officially though, BI is 1.6, but that is because it was released that way, and the fixes that are meant for vanilla RTW that come pre-patched in BI were released as the 1.5 patch.
Not exactly. Standard R:TW comes unpatched, but if you install BI it will be patched to 1.3. There is also a gold edition which comes with BI and is already patched to 1.5 (and 1.6 for BI).