[ACTION REQUIRED] Kubernetes is now built with Golang 1.16!

[Stephen Augustus]

Kubernetes Community,

You may have noticed that some of your PRs to kubernetes/kubernetes are failing tests that check the diff on go.mod or go.sum files, including:

• pull-kubernetes-dependencies
• pull-kubernetes-verify

That's because between last night and roughly 30 minutes ago, we were in a transitional phase as we prepared for the go1.16 update: https://github.com/kubernetes/kubernetes/pull/98572

Now that that PR has merged, I'd suggest a few things:

• Update your local Golang to go1.16. gimme is a great option if you work on multiple projects and have to manage multiple local installations of Golang
  
• Rebase your open kubernetes/kubernetes PRs
• If your PR is making changes to dependencies (go.mod/go.sum), try running the following commands:
• hack/update-internal-modules.sh
• hack/lint-dependencies.sh
• hack/update-vendor.sh
• In a separate commit, commit those changes (example: "generated: Run hack/update-vendor.sh")
  

If you continue to run into go1.16 issues, please leave us a note on the tracking issue or join us on Slack on the already-active go1.16 tracking thread.

Anecdotally, I believe this is the first larger PR that landed after the bazel removal.

I was immediately unblocked by that removal, so I'd be remiss if I didn't shoutout Ben, Aaron, and the SIG Testing crew for driving that effort forward!

Thank you as well to the usual crew (RelEng, @liggitt, @dims) for helping with getting this across the finish line ahead of Code Freeze!

-- Stephen