Go 1.27 Introduces Generic Methods, Completing the Language's Generics Model

Go 1.27 introduces generic methods as its headline language feature, allowing methods to declare their own standalone type parameters independent of the receiver type. This completes the three-level generics model in Go, which covers generic functions, generic types, and now generic methods. The addition enables method-level type transformations on both generic and non-generic receiver types, such as converting a Result[int] to a Result[string] through a single chained call. Go's type inference handles most call-site parameterization automatically, reducing verbosity for developers. Together, these three patterns expand Go's expressive power while preserving the language's emphasis on simplicity.