Wow, I'm impressed.

Just one remark: I feel as if the diff works opposite to what I'd expect. I expect the latest release to be the top dropdown box, and the older one the one underneath, but it's exactly the other way. I'm quite sure I won't be the only one to expect it the other way around.

Even if you disagree... Perhaps, near the top in the output for diff, a link to swap the two releases, could be provided?