Air Canada has made changes to their fares
Air Canada has made the following changes to their fares:

New “Economy Basic” fare for flights within Canada.
Effective February 12, 2018. Members cannot earn Aeroplan Miles on flights in this fare nor do they receive Altitude Qualifying Miles.

“Tango” fares will be rebranded “Standard” fares.
Effective April 4, 2018. This will not affect miles accumulation.

New “comfort’ fare will be launched.
Effective April 4, 2018. Members can earn up to 115% Aeroplan miles and Altitude Qualifying Miles on flights in this fare.

To learn more, please consult the Air Canada accumulation chart.