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

* 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))

- 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))

// 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

    <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>

* 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))