Google AdSense Moving to First Price Auction | What is this update?

In the early days of online display advertising, ad space was typically sold to advertisers in a second-price auction, where the final price paid by the winner was determined by the amount of the second-highest bid. Over time, many ad selling platforms in the display advertising ecosystem, including Ad Manager, AdMob, and many third-party ad exchanges, switched their auctions to first-price. In a first-price auction, the final price reflects the winning bid. In the coming months, AdSense will move to a first-price auction. This will help advertisers by simplifying how they buy online ads and make it easier for them to buy your ad space sold on AdSense.