[lotsofpulp]

It was not an old settlement, it was federal legislation (Dodd Frank 2010).

The 2018 Ohio v Amex ruling is about steering provisions not violating anti trust laws. Basically, Supreme Court ruled that AmEx could prohibit merchants from offering cheaper prices to Visa/Mastercard/Discover credit card users.

https://en.wikipedia.org/wiki/Ohio_v._American_Express_Co.

This ruling was actually very beneficial for tech companies.

It would be funny if, due to this settlement being only for Visa/Mastercard, merchants can charge different prices for using Visa or Mastercard credit cards, but American Express credit card users still gets to enjoy the lowest credit card price, while American Express gets to enjoy the highest credit card merchant fees.