val response1 = client.newCall(request).execute()
    val source = response1.body.source()
    assertThat(source.readUtf8()).isEqualTo("ABC")

    // OpenJDK 6 fails on this line, complaining that the connection isn't open yet
    val cipherSuite = response1.handshake!!.cipherSuite
    val localCerts = response1.handshake!!.localCertificates
    val serverCerts = response1.handshake!!.peerCertificates

- kube-scheduler dropped support for configuration files with apiVersion `componentconfig/v1alpha1`. Ensure kube-scheduler is configured using command-line flags or a configuration file with apiVersion `kubescheduler.config.k8s.io/v1alpha1` before upgrading to 1.13.
- kubectl

encounter "failed to get service accoount token attributes" errors. Reverts the `ServiceAccountNodeAudienceRestriction` feature to disabled in v1.32. Refer to https://github.com/kubernetes/kubernetes/issues/129935 for more details. If you're using in-tree inline volumes or in-tree persistent volumes whose CSI drivers depend on service account tokens, do not enable this feature in the 1.32 release. ([#130015](https://github.com/kubernetes/kubernetes/pull/130015), [@aramase](https://github.com/aramase)) [SIG...

- Introduced a feature gate mechanism to `client-go`. Depending on the actual implementation, users can control features via environmental variables or command line options. ([#122555](https://github.com/kubernetes/kubernetes/pull/122555), [@p0lyn0mial](https://github.com/p0lyn0mial))

## Changelog since v1.26.2

## Changes by Kind

### API Change

- Volumes: `resource.claims` gets cleared for PVC specs during create or update of a pod spec with inline PVC template or of a PVC because it has no effect. ([#115928](https://github.com/kubernetes/kubernetes/pull/115928), [@pohly](https://github.com/pohly)) [SIG API Machinery, Apps and Storage]

### Feature

to attach them to the start of each source file to most effectively
state the exclusion of warranty; and each file should have at least
the "copyright" line and a pointer to where the full notice is found.

    <one line to give the program's name and a brief idea of what it does.>
    Copyright (C) <year>  <name of author>

    This program is free software: you can redistribute it and/or modify