The right wing party in Australia (a few elections ago) increased retirement age but with a “rolling date”. Meaning they all get to retire on time with the earlier date but the later you were born the later your retirement age. They literally set their retirement age in stone then fucked younger generations on their way out. It’s still currently rolling out, recently increased to 67 in 2023.

(In more ways than one bit this one is particularly obvious and idk how they got away with it).