[hirundo]

> Add a new alias then to Kernel#yield_self. [Feature #14594]

It might seem strange that they lead with this new feature, but `yield_self` can greatly improve the Ruby chainsaw, and `then` makes it more accessible.

The style of writing a Ruby method as series of chained statements has a non-trivial effect on readability and conciseness. `then` lets you stick an arbitrary function anywhere in the chain. They become more flexible and composable, with less need to interrupt them with intermediate variables that break the flow.

I've been using `ergo` from Ruby Facets for years ... largely the same thing ... and the more I used it the more readable I find my old code now. Funny how adding one very simple method can have more effect than so many other complex, high effort changes.

[atombender]

Good article about yield_self: https://zverok.github.io/blog/2018-01-24-yield_self.html

[paublyrne]

I really would have preferred `pipe` as an alias.