Go 1.16 was released - here are the release notes.
The thing that caught my eye was that
io/ioutil has been deprecated - here’s what you need to know
The io/ioutil package has turned out to be a poorly defined and hard to understand collection of things. All functionality provided by the package has been moved to other packages. The io/ioutil package remains and will continue to work as before, but we encourage new code to use the new definitions in the io and os packages. Here is a list of the new locations of the names exported by io/ioutil:
os.ReadDir(note: returns a slice of os.DirEntry rather than a slice of fs.FileInfo)