tl;dr: Instagram is significantly tightening up access to their platform. The existing API is being deprecated in favor of a heavier permissions based system, and functionality available to all today, will be restricted to medium-to-large businesses down the road.
This is relevant to the HN community: builders who have enjoyed access to Instagram will now be severely restricted, which will limit future applications.
Finally: this is probably not a huge surprise. LinkedIn did this a couple of years ago, and of course Facebook has been tightening up access for years.
