This updates includes the big rework of the Onyx-class battleship, with a much needed new sprite. I also buffed the 557-class a bit as it was a smidgen underwhelming. And of course there was some various bug fixes to implement.
But the meat of the update is a first polishing pass on the hidden things you can find out there. Shout out to Avanitia for their invaluable feedback in this regard. I don't want to say too much about the changes since that stuff is best experienced cold, but if you have an idea of what I'm talking about, well now they have more toys to play with.
Please note that some of those improvements will require a new save to take effect.
Additionally, with the Onyx rework this update also has a chance to break existing saves. In such case you can revert to the previous release to keep your progress.