- [Additional Notable Feature Updates](#additional-notable-feature-updates)
  - [Known Issues](#known-issues)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST read this before you upgrade)](#no-really-you-must-read-this-before-you-upgrade)
      - [API Machinery](#api-machinery)
      - [Apps](#apps)
      - [Auth](#auth)
      - [AWS](#aws)
      - [Azure](#azure)
      - [CLI](#cli)

    - [Node Binaries](#node-binaries-10)
- [Kubernetes 1.11 Release Notes](#kubernetes-111-release-notes)
  - [Urgent Upgrade Notes](#urgent-upgrade-notes)
    - [(No, really, you MUST do this before you upgrade)](#no-really-you-must-do-this-before-you-upgrade)
  - [Major Themes](#major-themes)
    - [SIG API Machinery](#sig-api-machinery)
    - [SIG Auth](#sig-auth)
    - [SIG CLI](#sig-cli)

func validateUpgradeDowngradeClusterIPs(oldService, service *core.Service) field.ErrorList {
	allErrs := make(field.ErrorList, 0)

	// bail out early for ExternalName
	if service.Spec.Type == core.ServiceTypeExternalName || oldService.Spec.Type == core.ServiceTypeExternalName {
		return allErrs
	}
	newIsHeadless := isHeadlessService(service)

### API Change

- Added the feature gates `StrictCostEnforcementForVAP` and `StrictCostEnforcementForWebhooks` to enforce the strct cost calculation for CEL extended libraries. It is strongly recommended to turn on the feature gates as early as possible. ([#124676](https://github.com/kubernetes/kubernetes/pull/124676), [@cici37](https://github.com/cici37)) [SIG API Machinery, Auth, Node and Testing]

    <magic priority="40">
      <match value="function [a-zA-Z][A-Za-z0-9_]{0,62}[\\r\\n]" type="regex" offset="0"/>
    </magic>
    <!-- Two matlab-style comments fairly early in the file -->
    <magic priority="25">
      <match value="%" type="string" offset="0">
         <match value="\n%" type="string" offset="2:120"/>
      </match>
      <match value="%" type="string" offset="0">

	// 2. configMapRef and proto tag 1 were used by the API to refer to a configmap,
	//    but used a generic ObjectReference type that didn't really have the fields we needed
	// All uses/persistence of the NodeConfigSource struct prior to 1.11 were gated by alpha feature flags,
	// so there was no persisted data for these fields that needed to be migrated/handled.

type Constraint ~int         // illegal: ~int is not in a type parameter list
</pre>

<!--
We should be able to simplify the rules for comparable or delegate some of them
elsewhere since we have a section that clearly defines how interfaces implement
other interfaces based on their type sets. But this should get us going for now.
-->

<p>
The <a href="#Predeclared_identifiers">predeclared</a>

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  Use \`browserslist\` key in \`package.json\` or \`.browserslistrc\` file.

  Using \`browsers\` option can cause errors. Browserslist config can
  be used for Babel, Autoprefixer, postcss-normalize and other tools.

  If you really need to use option, rename it to \`overrideBrowserslist\`.

  Learn more at:
  https://github.com/browserslist/browserslist#readme
  https://twitter.com/browserslist