Go 1.21 Release Candidate - The Go Programming Language
go.dev
Go 1.21 RC brings language improvements, new standard library packages, PGO GA, backward and forward compatibility in the toolchain and faster builds.

Go 1.21 is almost here and as usual, with it is a pile of features and improvements.

I’m looking forward to using the new clear function as well as the new slices and maps packages.

What about you?