Snapchat Just Made Its Biggest Change Ever

Snapchat on Wednesday announced a new feature that signals a major philosophical change for a social media company that has, until now, placed great emphasis on immediacy.

The new feature, called "Memories," works like a holding bin for photos and videos that can be added to a Snapchat story later on.

Snapchat stories are slideshows of photos and videos that can be viewed by all of a user's friends until they're deleted 24 hours after being posted.