Instagram just released its Archive feature today, after testing it with a smaller group of teenagers last month.
Now you can hide your old posts without deleting them. Go into the “...” menu on a photo and it will be an option to archive the image placed right on top. Hitting that button will send the photo to a personal gallery (your archive) where only you can see it.
Instagram hopes that the archive will stop people from deleting their photos and make people more comfy with sharing certain photos. Some of its users (teenagers, especially) have a habit of deleting pictures that don’t earn enough likes. The archive won’t stop that behavior but will at least keep the pictures around for later viewing.