The amount of credit provided to the Canadian Dairy Commission allows it to purchase more milk. The surplus milk production issue is solved by processing milk into butter and cheese. The markets are not ready for these quantities. So the commission will be able to buy some of this butter and cheese from the processors and keep it for a given period of time. The increase in the commission's credit limit will help it to keep larger volumes.
On May 5th, 2020. See this statement in context.