- Mark Job onPodConditions as optional in pod failure policy ([#120210](https://github.com/kubernetes/kubernetes/pull/120210), [@mimowo](https://github.com/mimowo)) [SIG API Machinery and Apps]

### Feature

- Update the Event series starting count when emitting isomorphic events from 1 to 2. ([#119376](https://github.com/kubernetes/kubernetes/pull/119376), [@dgrisonnet](https://github.com/dgrisonnet)) [SIG API Machinery and Testing]

## Dependencies

### Added
_Nothing has changed._

### Changed

- API server's deprecated `--experimental-encryption-provider-config` flag is now removed. Adapt your machinery to use the `--encryption-provider-config` flag that is available since v1.13. ([#108423](https://github.com/kubernetes/kubernetes/pull/108423), [@ialidzhikov](https://github.com/ialidzhikov)) [SIG API Machinery]

	}

	appdir := filepath.Join(tmpdir, "gotest.app")
	os.RemoveAll(appdir)

	if err := assembleApp(appdir, os.Args[1]); err != nil {
		return 1, err
	}

	// This wrapper uses complicated machinery to run iOS binaries. It
	// works, but only when running one binary at a time.
	// Use a file lock to make sure only one wrapper is running at a time.
	//
	// The lock file is never deleted, to avoid concurrent locks on distinct

      - [Alpha](#alpha)
      - [CLI Improvements](#cli-improvements)
      - [Misc](#misc)
    - [API Changes](#api-changes)
    - [Other notable changes](#other-notable-changes-5)
      - [API Machinery](#api-machinery)
      - [Apps](#apps)
      - [Auth](#auth)
      - [CLI](#cli)
      - [Cloud Provider](#cloud-provider)
      - [Cluster Lifecycle](#cluster-lifecycle-1)
      - [Instrumentation](#instrumentation)

    - [Client Binaries](#client-binaries-10)
    - [Server Binaries](#server-binaries-10)
    - [Node Binaries](#node-binaries-10)
  - [Known Issues](#known-issues)
  - [Major Themes](#major-themes)
    - [SIG API Machinery](#sig-api-machinery)
    - [SIG-autoscaling](#sig-autoscaling)
    - [SIG-Azure](#sig-azure)
    - [SIG-cli](#sig-cli)
    - [SIG-cloud-provider](#sig-cloud-provider)
    - [SIG-cluster-lifecycle](#sig-cluster-lifecycle)

  - [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)
      - [Lifecycle](#lifecycle)
      - [Network](#network)
      - [Node](#node)

  - [WARNING: etcd backup strongly recommended](#warning-etcd-backup-strongly-recommended)
  - [Introduction to 1.9.0](#introduction-to-190)
  - [Major themes](#major-themes)
    - [API Machinery](#api-machinery)
    - [Apps](#apps)
    - [Auth](#auth)
    - [AWS](#aws)
    - [Azure](#azure)
    - [Cluster Lifecycle](#cluster-lifecycle)
    - [Instrumentation](#instrumentation)
    - [Network](#network)

### SIG API Machinery

[SIG API Machinery][] is responsible for all aspects of the API server: API registration and discovery, generic API CRUD semantics, admission control, encoding/decoding, conversion, defaulting, persistence layer (etcd), OpenAPI, third-party resources, garbage collection, and client libraries.

  - [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)
    - [SIG Cluster Lifecycle](#sig-cluster-lifecycle)
    - [SIG Instrumentation](#sig-instrumentation)
    - [SIG Network](#sig-network)