Google has made some significant improvements to its AdWords display ad builder. Advertisers were previously able to create and customize display ads, but the enhancements enable users to make building display ads even easier.
Features released include an image picker (which gives advertisers the ability to select from previously uploaded images), real-time editing (which shows what the text and other customization edits look like without having to select the "update preview" button), faster review of which images fit in specific ad sizes, and additional templates for customizing ads.
All in all very modest changes. Google has released a video on YouTube which will come in handy when it comes to learning how to use the display ad builder.