To signify the extensive refit the registration of Discovery was changed to NCC 1031-A
Self sealing stem bolts were traded by Nog and Jake ultimately for land on Bajor. There is a tongue-in-cheek joke in that, they never found out what exactly they were or used for. That information is not clarified in this story either.
The actors that play Sylvia Tilly and Ryn (Book's friend and saviour), Mary Wiseman and Noah Averbach-Katz are married in real life. This episode mark's Averbach-Katz's first appearance on the series.
The crew of the Discovery receives new combadges (which also serve as tricorders and personal transporters) to bring them up-to-date with 32nd-century technology, though inexplicably they continue to wear their 23rd-century uniforms for the remainder of the season.
Admiral Vance tells Willa to make sure that the USS Cuyahoga is cleared before doing a baryon sweep. A baryon sweep performed on the Enterprise D provided the main dramatic thrust of the story in Starship Mine (1993).