That is… lots of stability updates.
4 distinct Swap video games have all obtained minor updates in a single night from Nintendo.
ARMS, Splatoon 2, Tremendous Mario Maker 2, and Animal Crossing: New Horizons have all been up to date this night (NA time). All 4 video games listed patch notes are equivalent: “A number of points have been addressed to enhance the gameplay expertise.”
The brand new model numbers are 5.4.1 for ARMS, 5.5.1 for Splatoon 2, 3.0.2 for Tremendous Mario Maker 2, and a pair of.0.6 for Animal Crossing.