Good news: those who have a capital ship from previous Discovery version shouldn't be concerned about armor issue at all! You can still buy and equip a new armor, and the 'hidden' one will be disabled and moved to cargo. It won't even take up any cargo space.
As the 'old original ships' issue also proved to be nothing serious, as long as you don't lose any equipment, the problems that I was talking about are now resolved.
It seems that most bugs found in beta were resolved. Some issues may remain, but I think it's time for release.