I loved that feature, since it gave a great overview of what was actually changed. Screenshot is from 0.40.4 where it worked properly.
In the latest version, I can still click “Apply all”, but I can’t see directly in the file what changes will be applied. Makes Composer kind of unusable.
Exact same issue here. I upgraded to 0.43.2 and there is no diff view at all in the file editor.
I consider this a CRITICAL bug.
Serves me right for updating so often Once this gets fixed, im only updating once a year.
UPDATE: Diffing in the editor came back. Im not sure how it broke or how it fixed, but I suspect it has something to do with markdown files. Composer was struggling making changes to my markdown README file.
In any case, it’s fixed!