It's like a virus. First it comes to Facebook, then to Twitter, now to Instagram. They all said good bye to the chronological order to show us content â€œwe care aboutâ€.
The reason is, according to Instagram, that people miss 70 percent of their feeds on average and so they might miss some posts â€œthey care aboutâ€.
The ordering will be base on the likelihood you'll be interested in the posts, but also your relation to the person posting the content.
Instagram uses this example:
If your favorite musician shares a video from last night's concert, it will be waiting for you when you wake up, no matter how many accounts you follow or what time zone you live in. And when your best friend posts a photo of her new puppy, you won't miss it.
The change won't be immediately, because they need some time and we'll â€œsee this new experience in the coming months.â€
In the latest beta version of Instagram, you can already see some indicators for this change. For example the time, when an image was posted moved below the post and is now written with very small letters. And another small change in the app is, that the icon for like and comment have no a bigger border.
Let's see what's comingâ€¦
Source: Instagram Blog