The most significant change to functionality is the introduction of “campaign types” — depending on the type of campaign it is, you will see different options. The idea is to keep the interface simpler when your campaign is simpler. If you are creating a search network campaign, you can select Standard, All Features or Product Listing Ads. Standard means text ads showing on search results; All Features includes all features and options for the search network; and Product Listing Ads is customized for using this type of AdWords extension.
Generally speaking, the interface looks lighter — lighter greens with white or lighter grey backgrounds.
The company says it is putting the final touches on the redesign and will launch it “soon”.