View source for User:Jack980517/April 28th tweet translation

https://twitter.com/chunithm/status/1519194714502664193
== Adjustment to the level limit of song selection ==
For those with gold ratings, platinum ratings, and those with mid-tier rainbow ratings with decent results in National Matching, the upper limit has been raised a bit.

It doesn't change that the lowest level range among all participants in a match is used.<br>
Players with their skill value close to their rating, such as those that haven't played National Matching much, or those that have balanced results, would have lower level ranges compared to players with higher skill value than their rating.

For reference: When a low-tier rainbow rating player play National Matching for the first time, their own upper limit of selectable levels is 14.<br>
(If matched with a player with lower skill value, the upper limit would become 13+.)

== Adjustment to the matching range ==
* For those with platinum ratings, and those with high-tier rainbow ratings with decent results in National Matching, the search range is made smaller, making it easier to match with players with skill values close to your own.<br>
:With this, the situation that the selectable levels become much lower should happen less often.
* To ensure the rate of successful matching, the wait time has been lengthened.

== Adjustment to the CPU level ==
* For players for whom CPU level 13 or above would appear, the CPU level has been adjusted.
* In occasions where high level CPU players appear, the probability of them getting high scores is lowered.