According to an announcement by Microsoft, phrase matching will be expanding by the middle of May to include broad match modifier traffic. Google chose to announce the same thing for their own search engine earlier this year.
The reason why Microsoft chose to do the same thing as Google is to make adoption as easy as possible since many people are also using Google Ads as well.
With the new way Microsoft will be treating phrase matching, that means that advertisers will be able to save time when it comes to managing keywords.
According to Microsoft, North America and Canada will begin getting phrase match over the next few weeks. an will “begin to incorporate behaviors of BMM to simplify keywords and improve your relevancy when reaching customers.”