This marks the season finale of a 13-episode season. On November 6, 2019, CBS increased the order of this season from 13 episodes to 22. By the time production was shut down due to the COVID-19 pandemic, the season was reduced to 20 episodes with 19 episodes completed. The producers and the CBS executives then decided to keep the 13th episode as the finale for both the CODEX story arc and this season. The 6 remaining episodes filmed for season 4 were later aired as season 5 episodes.
In the original series, MacGyver's first name, Angus, was a family name. In this series, the flashback revealed that he was named after a sign next to the car where his mother gave birth to him.