Responsive Search Ads will now be the default text ad type in Google Ads. But don’t worry, you will still be able to create Expanded Text Ads and edit existing ones.
Google has said that this change won’t impact how ads are served. It just means that Responsive Search Ads will now be the default when you go to create a new ad.
Responsive Search Ads allow you to add a number of assets and Google then mix and matches these to create the most relevant ad to a search. This isn’t always ideal, but if you are particularly attached to a headline you can always pin it. This will mean it’s always shown.