How to propose changes to Go

I am certain that Generics are not supported in Go (not even in Go 2.0), and as mentioned in the summary, I'm okay with that.

However, the feature that we'd benefit most greatly from, if Go had it, is Tail Call Optimization (TCO).

The first step - search specs

Is it possible that Go already supports TCO? Time to find out.

First, I looked at the Go language specification for any mention of a TCO feature (https://golang.org/ref/spec).

I found nothing about TCO.

Second step - Google search

Next, I did the requisite Google search, ...