* Docker 1.10.3 contains [backports provided by RedHat](https://github.com/docker/docker/compare/v1.10.3...runcom:docker-1.10.3-stable) for known issues
  * Support for Docker version 1.9.x has been removed
* rkt version 1.23.0+
  * known issues with the rkt runtime are [listed in the Getting Started Guide](http://kubernetes.io/docs/getting-started-guides/rkt/notes/)
* etcd version 3.0.17
## Changelog since v1.6.0-rc.1

CSI Service Account Token feature moves to Beta in 1.21. This feature improves the security posture and allows CSI drivers to receive pods' [bound service account tokens](https://github.com/kubernetes/enhancements/blob/master/keps/sig-auth/1205-bound-service-account-tokens/README.md). This feature also provides a knob to re-publish volumes so that short-lived volumes can be refreshed.

### CSI Health Monitoring

- Features:

  - The following features are now GA, and the associated feature gates are deprecated and will be removed in v1.17:
    - `GCERegionalPersistentDisk` (since 1.15.0)
    - `CustomResourcePublishOpenAPI`
    - `CustomResourceSubresources`
    - `CustomResourceValidation`
    - `CustomResourceWebhookConversion`

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1257          ; disallowed                             # NA   <reserved-1257>
1258          ; valid                                  # 3.0  ETHIOPIC SYLLABLE QHWA
1259          ; disallowed                             # NA   <reserved-1259>
125A..125D    ; valid                                  # 3.0  ETHIOPIC SYLLABLE QHWI..ETHIOPIC SYLLABLE QHWE

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background-color: var(--bs-modal-bg);\n  background-clip: padding-box;\n  border: var(--bs-modal-border-width) solid var(--bs-modal-border-color);\n  border-radius: var(--bs-modal-border-radius);\n  outline: 0;\n}\n\n.modal-backdrop {\n  --bs-backdrop-zindex: 1050;\n  --bs-backdrop-bg: #000;\n  --bs-backdrop-opacity: 0.5;\n  position: fixed;\n  top: 0;\n  left: 0;\n  z-index: var(--bs-backdrop-zindex);\n  width: 100vw;\n  height: 100vh;\n  background-color: var(--bs-backdrop-bg);\n}\n.modal-backdrop.fade {\n...