Not only the change log, the link to the patch itself also throws a 404. And the launcher says version 1.04.138 is the latest.

Edit: Now it's working.

I'm having the same problem. Gladius seems to try to connect to steam and does not start. Maybe there has been some error uploading the patch and they ended up uploading files from the steam version. I hope they fix it soon, I don't have the steam client (nor a steam account), so for now I can't lau...