Google announced some new features for its responsive ad units in AdSense. Additionally add multi-screen optimization score for the publisher scorecard.
For responsive ads, Google has added ad refresh fro screen orientation changes.
Product manager Nick Radicevic explains, “If your responsive page changes its layout following a screen orientation change (e.g., when a tablet or phone goes from portrait to landscape), we’ll request and load a new ad to fit the new page layout.”