On Twitter, Google announced that they stopped supporting the standout meta tag and editor’s pick feeds. Both could be used with Google News before;
As part of the new Google News, we have ended support for Editors' Picks feeds & the standout meta tag. We'll have more to share on other ways publishers can optimize visibility in the near future. You can learn more about the new Google News here: https://t.co/64VB1PRmxi— Google SearchLiaison (@searchliaison) 15. Mai 2018
The standout meta tag was used to mark pages with big stories and/or extraordinary work. The editor’s picks feed enables publishers to pick up to five links that represent the best content on the website. The new version of Google News uses artificial intelligence and machine learning to find that content.