Can Massachusetts restaurants sell alcohol to go?

Could you please elaborate on the current regulations surrounding the sale of alcohol to go at restaurants in Massachusetts? Specifically, are there any laws or restrictions in place that prevent restaurants from offering alcohol for takeout or delivery? I'm curious to understand if this is a practice that is commonly allowed or if there are specific conditions that need to be met in order to offer this service. Additionally, are there any recent changes or proposed legislation that could impact the ability of restaurants to sell alcohol to go in the future?