The following changes have been applied to the installer at
http://www.autohotkey.com/download/
Fixed some problems with neutral modifier keys (Shift, Control, Alt) that are used as both a prefix and suffix such as in this example:
Shift & Capslock::MsgBox You pressed Capslock while holding down the either Shift key.
Shift::MsgBox You released either Shift key without having used it to modify another key.
Changed the Input command so that the user can toggle CapsLock/NumLock/ScrollLock during an invisible Input.
Added built-in variable A_ThisMenuItemPos, which is a number indicating the current position of A_ThisMenuItem within A_ThisMenu.