According to developer logs from The Cutting Room Floor , this specific version addressed several critical bugs:
: Added a machine in the Spaceship to read back the latest rare sticker alerts and fixed inconsistent alerts. Localization : Updated Chinese and Korean translations. A.Hat.in.Time.Ultimate.Edition.Update.v20190519...
: Resolved issues where duplicate player models appeared in the player list and synced enemy deaths correctly across all participants. According to developer logs from The Cutting Room
The Ultimate Edition package, as detailed on Steam , includes the base game plus all major expansions: A Hat in Time - Ultimate Edition for Nintendo Switch as detailed on Steam