On my system (Debian GNU/Linux, booting with Island Rum), the game does not boot anymore since today. What happened:
I still had Island Rum running. I clicked the "play" button and it launched. When trying to connect to Reunion, the game informed me that I had the wrong version.
I closed Island Rum and restarted it. It downloaded things, then closed without any messages.
I started Island Rum again. Same thing.
I tried a few more times, not sure how many.
At some point it no longer opened a window, but instead gave me a message in the console:
Originally I had to create /usr/local/games/coh and chown it to my user. That's where the game is installed. It looks like it no longer searches there?
How do I get it working again?
Update: apparently there was a directory of Island Rum inside the Island Rum directory, with another copy of it. I have no idea why, but when starting that copy, it also updated, but then it launched normally and I could log in again. No idea what happened, and possibly it's still something that needs fixing, but at least I have things working.