Aeroplan has made a small change to its award chart regions by Moving Macau from Asia 2 to Asia 1.
The Asia 1 is better match to its locations considering the countries on Asia 2.
Two Star Alliance carriers fly to Macau: Shenzhen Airlines and EVA Air. Thai Smile (part of Thai Airlines) flies there from Bangkok as well, but it is unclear if the airline remains in Star.
Airlines and loyalty programs rarely move countries from one region to another, but Aeroplan made this small change this past week. This is not a huge deal but may have an effect to some.