What is the matter with social networks. Facebook, twitter and now Instagram are changing the order in which you feed will be displayed.
The order of photos and videos in your feed will be based on the likelihood you’ll be interested in the content, your relationship with the person posting and the timeliness of the post. As we begin, we’re focusing on optimizing the order — all the posts will still be there, just in a different order.
Personally, I just wish there was an option to change the sorting so “me” the “user” can decide which way to view the feed.