More recently, C# 9 and 10 have returned the concept of `records` (preferably immutable objects) along with the `with` keyword for making copies with some of the properties changed from the source to the dest object.
It has been an interesting decade watching HN metaphorically (and sometimes literally i'm sure) shift around uncomfortable in their chair as the all-encompassing-nightmare M$FT creates two languages that are more and more dominating of developer marketshare - C# and TypeScript.