This release has a new image fetching and caching mechanism. As you scroll through posts with images, the app will fetch images from the network and local storage asynchronously, showing a colored background while waiting. Once the image is available, the color will cross-fade to the image.
Don't forget that if you don't see any content after updating, just pull-to-refresh on the Home screen once or twice. This is due to a database schema change, and we'll be making that migration automatic soon.