val call = proxyConfig.connect(server, client, url)
    assertContent("this response comes via a secure proxy", call.execute())
    val connect = server.takeRequest()
    assertThat(connect.requestLine, "Connect line failure on proxy")
      .isEqualTo("CONNECT android.com:443 HTTP/1.1")
    assertThat(connect.headers["Host"]).isEqualTo("android.com:443")
    val get = server.takeRequest()

- 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

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

// dell : Dell Inc.
// https://www.iana.org/domains/root/db/dell.html
dell

// deloitte : Deloitte Touche Tohmatsu
// https://www.iana.org/domains/root/db/deloitte.html
deloitte

// delta : Delta Air Lines, Inc.
// https://www.iana.org/domains/root/db/delta.html
delta

// democrat : Dog Beach, LLC
// https://www.iana.org/domains/root/db/democrat.html
democrat

// dental : Binky Moon, LLC

- 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))

* E2E tests no longer add command line flags directly to the command line, test suites that want that need to be updated if they don't use HandleFlags ([#75593](https://github.com/kubernetes/kubernetes/pull/75593), [@pohly](https://github.com/pohly))

    <glob pattern="*.xtest"/>
    <glob pattern="*.xweb"/>
    <glob pattern="*.xwelcome"/>
  </mime-type>

  <mime-type type="text/prs.fallenstein.rst"/>
  <mime-type type="text/prs.lines.tag">
    <glob pattern="*.dsc"/>
  </mime-type>
  <mime-type type="text/red"/>
  <mime-type type="text/rfc822-headers"/>
  <mime-type type="text/richtext">
    <glob pattern="*.rtx"/>
  </mime-type>

ryption-S3-Sealed-Key":"IAAfAOSb83gNedzpMWYJ/6uzxH1eBs0WYVvf89fvP==","X-Minio-Internal-Server-Side-Encryption-Seal-Algorithm":"DAREv2-HMAC-SHA256","content-type":"application/octet-stream"}},{"Bucket":"buck1","Name":"go_113/src/cmd/internal/objabi/line.go","UserDef":{"X-Minio-Internal-Server-Side-Encryption-Iv":"NmYqFwNI//UPoufHXAf5rJVmOJQJmx=","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Key-Id":"my-minio-key","X-Minio-Internal-Server-Side-Encryption-S3-Kms-Sealed-Key":"IAAfAOWqwxPi3cMm0zn4+...

* ACTION REQUIRED: kubeadm: the mixture of "--config" and "--certificate-key" is no longer allowed. The InitConfiguration and JoinConfiguration objects now support the "certificateKey" field and this field should be used instead of the command line argument in case a configuration file is already passed. ([#78542](https://github.com/kubernetes/kubernetes/pull/78542), [@neolit123](https://github.com/neolit123))