Asset Transformer is a module that allows you to generate re-sized versions of image assets and have them served by Asset Bank via Amazon CloudFront CDN (Content Delivery Network). Recent changes we have implemented mean that now, after uploading a new version of an image that is being used by transformer, this will immediately be reflected via the CDN (rather than waiting one day for the cache to expire first). This ensures that any updates to your product images will be in front of your clients immediately.