Photo messages "are automatically deleted from our servers once we detect that they have been viewed or have expired", just as they were before, Snapchat said. It does not stockpile pictures, and never has.
Snapchat now says it has a broad license so it can legally publish any photos in public that have been submitted to it specifically for that purpose. This has actually always been the case, but somewhat ironically, Snapchat has said the update was intended to make the wording of the policy clearer.
It has also updated its language regarding in-app purchases. "We needed to do that now that we're selling Replays -- and have some other cool products and services we're looking forward to bringing to you soon," Snapchat said. In-app purchases and promoted content will be part of the company's long-term strategy for monetizing the app.