- A new sleep action for the `PreStop` lifecycle hook was added, allowing containers to pause for a specified duration before termination. ([#119026](https://github.com/kubernetes/kubernetes/pull/119026), [@AxeZhan](https://github.com/AxeZhan))

* Hook up kubeadm against the BootstrapSigner ([#41417](https://github.com/kubernetes/kubernetes/pull/41417), [@luxas](https://github.com/luxas))

    * Fix kubernetes-master charm starting services before TLS certs are saved

    * Fix kubernetes-worker charm failures in LXD

    * Fix stop hook failure on kubernetes-worker charm

    * Fix handling of juju kubernetes-worker.restart-needed state

    * Fix nagios checks in charms

* fluentd-gcp addon: Fixed bug with reporting metrics in event-exporter. ([#60126](https://github.com/kubernetes/kubernetes/pull/60126), [@serathius](https://github.com/serathius))

* Avoid hook errors when effecting label changes on kubernetes-worker charm. ([#59803](https://github.com/kubernetes/kubernetes/pull/59803), [@wwwtyro](https://github.com/wwwtyro))

- Fix rounding of volume storage requests. ([#100100](https://github.com/kubernetes/kubernetes/pull/100100), [@maxlaverse](https://github.com/maxlaverse))
- Fix runtime container status for `PostStart` hook error. ([#100608](https://github.com/kubernetes/kubernetes/pull/100608), [@pacoxu](https://github.com/pacoxu))

- Fixed restricted debug profile. ([#117543](https://github.com/kubernetes/kubernetes/pull/117543), [@mochizuki875](https://github.com/mochizuki875))
- Fixed the `preStop` hook. This will now block the pod termination grace period. ([#115835](https://github.com/kubernetes/kubernetes/pull/115835), [@HirazawaUi](https://github.com/HirazawaUi))

* apiservers: add synchronous shutdown mechanism on SIGTERM+INT ([#50439](https://github.com/kubernetes/kubernetes/pull/50439), [@sttts](https://github.com/sttts))
* Fix kubernetes-worker charm hook failure when applying labels ([#50633](https://github.com/kubernetes/kubernetes/pull/50633), [@Cynerva](https://github.com/Cynerva))

- go.opencensus.io: v0.21.0
- golang.org/x/mod: 4bf6d31
- gopkg.in/airbrake/gobrake.v2: v2.0.9
- gopkg.in/errgo.v2: v2.1.0
- gopkg.in/gemnasium/logrus-airbrake-hook.v2: v2.1.2
- gopkg.in/mcuadros/go-syslog.v2: v2.2.1
- gotest.tools/gotestsum: v0.3.5
- honnef.co/go/tools: v0.0.1-2019.2.2

#### Changed

- cloud.google.com/go: v0.34.0 → v0.38.0

  <mime-type type="application/vnd.font-fontforge-sfd"/>
  <mime-type type="application/vnd.framemaker">
    <glob pattern="*.fm"/>
    <glob pattern="*.frame"/>
    <glob pattern="*.maker"/>
    <glob pattern="*.book"/>
  </mime-type>
  <mime-type type="application/vnd.frogans.fnc">
    <glob pattern="*.fnc"/>
  </mime-type>
  <mime-type type="application/vnd.frogans.ltf">
    <glob pattern="*.ltf"/>
  </mime-type>

### Feature