Information on the most recent update?

Hi! I noticed that my switch gave me the “Latest update installed” notification for LTD, and was curious if there are patch notes to see what changed. One thing that I highly suspect was tweaked was the frequency of fights; before the update I hadn’t encountered a single fight in ~75 hours of gameplay. After the update I loaded my game and immediately noticed that two pairs of Miis were fighting, with another pair getting into a fight later that day (unless this is just a crazy coincidence).

Anyone have any info as to what else was changed?