It seems The Patch is slowly blanketing the globe. It’s arrived in Europe and Japan and should arrive in the U.S. soon.
Rough Translation from Professor:
Ranked Match: You can now set your rooms so that players with low bars or low disconnects can’t join in.
Custom Match: Your room and filter settings will be temporarily memorized by the game.
Connection Display: The Antenna’s level display has been improved (I guess this means it won’t lie like it used to)
Online Connection: The stability of online connection has been overall improved (Note that it says stability, not speed.)
Player Data: Fix(es) have been made to “Player Data” (What exactly the fixes are, it doesn’t say.. probably the reset bug)
Replay: Fix(es) have been made to “Replay” (What exactly the fixes are, it doesn’t say.. my guess is the delete bug: you deleted files on the 1st page no matter what you did.)
Misc: Some fixes have been made to “Customize”, and also to issues caused with certain characters.