First I'd like to say that WinMerge is awesome -- thanks for taking the time to make it that way!
That being said, I am a bit confused. I've found a bit of evidence that the newer versions of WinMerge have the ability to compare binary files in "hex mode" but I have no idea how to access it. I see that hekseditU.dll is included in the installation so I'm assuming the support is there, but how do I enable it?
I saw that it was under a context menu in version 220.127.116.11 and then removed after that. Where did it go? I've been waiting a long time to see a feature like this and it looks great in 18.104.22.168. If I could use it in the latest version, I'd be thrilled.
I did notice the thread in the development forum but to me it doesn't seem that any decision was made. If I might add my 2 cents, I'd suggest adding an option somewhere that toggles whether binary files are compared in hex mode or not.