Last week, Instagram quietly started storing and showing pictures in a new, higher resolution of 1080 x 1080, rolling out the update across iOS and Android. Yesterday, Instagram co-founder Mike Krieger stated on Twitter that the latest update for Google's mobile OS also adds "a bunch of improvements to the image pipeline" meaning that users should also "see better upload quality."
This is a vague claim, but will still be welcome news for Android users. For reasons that have never been fully explained, Android has always suffered from lower quality Instagram uploads compared to iOS. The app's developers have previously noted that building Instagram for Android is a particular challenge because of the wide variety of screen sizes, but they've never explicitly stated whether or not these difficulties have an effect on image quality. Still, Instagram users should keep a close eye on their feeds to see if they can spot the difference.