The “changes and restrictions” relate to their settlement with SEC – $30M and an agreement to stop offering staking services in U.S.
Don’t worry though, crypto news as always will put a positive spin on it and make it sound like this was a voluntary and strategic move by Kraken:
This move underscores Kraken’s strategic adjustments amid evolving regulatory landscapes and its commitment to compliance within the US market.
https://coinmarketcap.com/community/articles/663a84afa8f5041f9158146d/
h/t dyzo-blue & DiveCat