- Fix kubectl printer to correctly handle timestamps of events emitted using events.k8s.io API ([#94226](https://github.com/kubernetes/kubernetes/pull/94226), [@ingvagabund](https://github.com/ingvagabund)) [SIG CLI]
  ```sh
  $ kubectl get event
  LAST SEEN   TYPE     REASON              OBJECT                        MESSAGE

* Separate development scripts `test.sh`, `lint.sh`, and `format.sh`. PR [#232](https://github.com/tiangolo/fastapi/pull/232).

* Re-enable `black` formatting checks for Python 3.7. PR [#229](https://github.com/tiangolo/fastapi/pull/229) by [@zamiramir](https://github.com/zamiramir).

* `cluster/update-storage-objects.sh` now supports updating StorageClasses in etcd to storage.k8s.io/v1. You must do this prior to upgrading to 1.8. ([#46116](https://github.com/kubernetes/kubernetes/pull/46116), [@ncdc](https://github.com/ncdc))

* fix network setup in hack/local-up-cluster.sh (https://github.com/kubernetes/kubernetes/pull/60431) ([#60633](https://github.com/kubernetes/kubernetes/pull/60633), [@pohly](https://github.com/pohly))
    * better error diagnostics in hack/local-up-cluster.sh output

### Feature

- Add option to enable leader election in local-up-cluster.sh via the LEADER_ELECT cli flag. ([#127786](https://github.com/kubernetes/kubernetes/pull/127786), [@Jefftree](https://github.com/Jefftree)) [SIG API Machinery]

  - build: Update to k/repo-infra@v0.1.1 (supports go1.15.2)
  - build: Use go-runner:buster-v2.0.1 (built using go1.15.1)
  - bazel: Replace --features with Starlark build settings flag
  - hack/lib/util.sh: some bash cleanups
    
    - switched one spot to use kube::logging
    - make kube::util::find-binary return an error when it doesn't find
      anything so that hack scripts fail fast instead of with '' binary not

tion-S3-Sealed-Key":"IAAfAPGLrk2nmFraRIF2/EGNyA==","X-Minio-Internal-Server-Side-Encryption-Seal-Algorithm":"DAREv2-HMAC-SHA256","content-type":"application/octet-stream"}},{"Bucket":"buck1","Name":"go_113/src/cmd/vendor/golang.org/x/sys/unix/mkall.sh","UserDef":{"X-Minio-Internal-Server-Side-Encryption-Iv":"fC3xVFiyP7QQh/5eFv7TTUY9NwVEOKGtld=","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id":"my-minio-key","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key":"IAAfAN4Ybiyd84if6QtN/...

- Integration testing now takes periodic Prometheus scrapes from the etcd server.
  There is a new script ,`hack/run-prometheus-on-etcd-scrapes.sh`, that runs a containerized Prometheus server against an archive of such scrapes. ([#106190](https://github.com/kubernetes/kubernetes/pull/106190), [@MikeSpreitzer](https://github.com/MikeSpreitzer)) [SIG API Machinery and Testing]

  The Dormouse again took a minute or two to think about it, and
then said, `It was a treacle-well.'

  `There's no such thing!'  Alice was beginning very angrily, but
the Hatter and the March Hare went `Sh! sh!' and the Dormouse
sulkily remarked, `If you can't be civil, you'd better finish the
story for yourself.'

  `No, please go on!' Alice said very humbly; `I won't interrupt
again.  I dare say there may be ONE.'

* Support vSphere SAML token auth when using Zones ([#75515](https://github.com/kubernetes/kubernetes/pull/75515), [@dougm](https://github.com/dougm))
* Fix empty array expansion error in cluster/gce/util.sh ([#76111](https://github.com/kubernetes/kubernetes/pull/76111), [@kewu1992](https://github.com/kewu1992))