Olaf's Frozen Adventure was released in 2017.
The Disney animated featurette originally received a limited theatrical release beginning November 22, 2017, screening in 3D before Pixar's Coco. Its placement was unusual because the 21-minute production was much longer than the short films that typically preceded Pixar features, and the decision generated considerable audience discussion.
The story takes place during the first Christmas season after Arendelle's gates reopen. Anna and Elsa discover that they do not have a shared family holiday tradition, so Olaf and Sven set out to find customs they can bring home for the sisters. The short includes four original songs, including “When We're Together” and “That Time of Year.”
Olaf's Frozen Adventure had first been announced as an ABC television special, but Disney changed course and gave it a theatrical engagement instead. It later made its network television debut on ABC on December 14, 2017. It is a featurette rather than a full-length sequel.