Here is the press release:
In the coming months, we’ll be rolling out a new design for ads in the right-hand column. This updated look will make right-hand column ads more visually consistent with the ads that appear in News Feed. They will use the same proportions as desktop News Feed ads, they will be larger in size, and there will be fewer of them. For advertisers, this offers a simpler way to create ads and an enhanced creative canvas on the right-hand column of Facebook.
Here’s how the new ads will look:
A better experience for people
The new look of the ads, along with their new distribution, is intended to offer a better ad experience on Facebook. In early tests we’ve seen increased engagement — up to 3X more — from people seeing the new design.
A simpler ad product
Because the updated ads mirror the overall shape of desktop News Feed ads, marketers will no longer have to choose separate images for News Feed and right-hand column placements. They can now use the same image for both.
Some advertisers will begin seeing this new option later this month, with all advertisers being rolled over later this year. During this transition phase, we will support the old and new formats.