Yes it is. Mitsubishi, Daikin, Carrier and all other manufactures are phasing out the manufacturing of Ductless Air Conditioning ONLY stems. They are being replaced by high efficiency Ductless Heat Pumps, which provide both air conditioning and heating.
It doesn't make economic sense for the manufactures to rearrange an assembly line to make cooling only units, when there is very little cost difference from the manufacturing process of a heat pump.
Find out more about Ductless Heat Pumps: https://www.airinchvac.com/ductless-heating-cooling/mitsubishi-electric-ductless.html