Bloodstained has been updated to version 1.20 today on January 14. Here are the patch notes for this update mentioning the various fixes.
This update implements a fix for the Bloodless playable character and adds a new Classic mode. There is also a collaboration with Kingdom where players can defeat Bathin to find a new item.
Bloodstained Ritual of the Night Update 1.20 Patch Notes
— Release of Classic Mode
— Release of Kingdom crossover content. Visit the store after defeating Bathin to find a new item.
— Some bug fixes for Bloodless playable character