Design-system debt, on purpose
Kitebank kept two button styles for a year. That was the right call. Here is why.

Kitebank had two button styles. The design system said there should be one. Shipping the unification would have delayed a lending flow that was making money.
We documented the debt, dated it, and put a kill date on the older style. The kill date moved once. That is allowed. Pretending there was no debt is not.
Product studios that never keep debt are lying or not shipping. The CMS page is here so the date stays visible.