There are now four new classes for handling the rendering of

screenshots, file attachments, and their captions. These replace the

in-template and in-view logic that we previously had.
It also restores the ability to see the change entries for removed or

uploaded file attachments and screenshots, which went missing after

moving to the new field classes.
Unlike the new DiffField, none of these classes handle recording the

change entries. This is because publish() performs many operations on

screenshots/file attachments, and it would just end up being more

complicated and less efficient to move that code out.

Changed some captions on both screenshots and file attachments. Published.

The changes were recorded (since that code hasn't moved) and the changes

were rendered.
Uploaded a file attachment. Saw its changes rendered as well.
Went to an old review request with screenshots, and saw the changes rendered

for all the uploads I've done over the years.