I've just noticed something which, AFAIK, has only happened since this upgrade. Some of the images which have been posted as Attachments seem to have been corrupted.
I first noticed this when I was looking for the Brooklands 2014 photos earlier yesterday. In this post
there is a good example, also my panoramas a couple of posts previously. I wondered if it was something to do with the age of the posts, but in this post from mid Jan this year
, the same problem is evident in the third image.