Here are just some of the highlights:

Improved overall look-and-feel making it easier to read and track separate stories.

Ability to customize the webapp to suit your taste by changing the theme from light to dark, the font size and opting for a larger “story card” with more information per story at your fingertips (from the Settings menu, at top right).

Simplified navigation to any section within News; just click on the Google News icon (top left) to see a list of available sections (including any custom sections you created).

Easier integration with Google Feedback located in the menu at the top right.