At long last, the 24-hour limit is no more. You can now upload photos to your Instagram Story that are up to a week old.
When uploading a story, you can now swipe up on the screen and be shown a reel of all the photos you've taken in the past week (as opposed to those taken in the past 24 hours).
Even after its public release, this feature may not change much about the Stories experience. As one user noted, it has always been easy to post older photos as Stories by screenshotting or editing them.
But the new feature is an important symbolic move for Instagram Stories. The Instagram Stories platform, since its launch last August, has long been known as a real-time public timeline, all but identical to the feature of the same name developed by its competitor Snapchat. The app's seal of approval will encourage users to construct longer and more in-depth narratives for their followers, in addition to the stand-alone snapshots that currently tend to appear in Stories.
The change also reflects yet another push to emulate the widespread success of Snapchat Stories, which allows users to post photos of any age.