the request already contains an `Accept` header.

 *  Fix: Don't crash with a `NullPointerException` if a server sends a close while we're sending a
    ping. OkHttp had a race condition bug.


## Version 4.6.0

_2020-04-28_

 *  Fix: Follow HTTP 307 and 308 redirects on methods other than GET and POST. We're reluctant to

016D          ; valid                                  # 1.1  LATIN SMALL LETTER U WITH BREVE
016E          ; mapped                 ; 016F          # 1.1  LATIN CAPITAL LETTER U WITH RING ABOVE
016F          ; valid                                  # 1.1  LATIN SMALL LETTER U WITH RING ABOVE
0170          ; mapped                 ; 0171          # 1.1  LATIN CAPITAL LETTER U WITH DOUBLE ACUTE

- Creating a PVC with DataSource should fail for non-CSI plugins. ([#97086](https://github.com/kubernetes/kubernetes/pull/97086), [@xing-yang](https://github.com/xing-yang)) [SIG Apps and Storage]

- Locked `CSIMigrationvSphere` feature gate. ([#116610](https://github.com/kubernetes/kubernetes/pull/116610), [@xing-yang](https://github.com/xing-yang))
- Made `apiextensions-apiserver` binary linking static (also affects the deb and rpm packages). ([#114226](https://github.com/kubernetes/kubernetes/pull/114226), [@saschagrunert](https://github.com/saschagrunert))

- Added support to restore a volume from a volume snapshot data source.  ([#67087](https://github.com/kubernetes/kubernetes/pull/67087), [@xing-yang](https://github.com/xing-yang))

* Fixes API compatibility issue with empty lists incorrectly returning a null `items` field instead of an empty array. ([#39834](https://github.com/kubernetes/kubernetes/pull/39834), [@liggitt](https://github.com/liggitt))
* Re-add /healthz/ping handler in genericapiserver ([#38603](https://github.com/kubernetes/kubernetes/pull/38603), [@sttts](https://github.com/sttts))

  // More info: https://examples.k8s.io/volumes/cephfs/README.md#how-to-use-it
  // +optional
  optional string user = 3;

  // secretFile is Optional: SecretFile is the path to key ring for User, default is /etc/ceph/user.secret
  // More info: https://examples.k8s.io/volumes/cephfs/README.md#how-to-use-it
  // +optional
  optional string secretFile = 4;

around a Firefox/IE bug where the transparent `button` background\n// results in a loss of the default `button` focus styles.\n//\n// Credit: https://github.com/suitcss/base/\nbutton:focus {\n  outline: 1px dotted;\n  outline: 5px auto -webkit-focus-ring-color;\n}\n\ninput,\nbutton,\nselect,\noptgroup,\ntextarea {\n  margin: 0; // Remove the margin in Firefox and Safari\n  font-family: inherit;\n  @include font-size(inherit);\n  line-height: inherit;\n}\n\nbutton,\ninput {\n  overflow: visible; //...

pkg crypto/x509, type PEMCipher int
pkg crypto/x509, type SystemRootsError struct
pkg crypto/x509, type VerifyOptions struct, KeyUsages []ExtKeyUsage
pkg crypto/x509, var IncorrectPasswordError error
pkg database/sql, method (*DB) Ping() error
pkg database/sql, method (*DB) SetMaxIdleConns(int)
pkg database/sql/driver, type Queryer interface { Query }
pkg database/sql/driver, type Queryer interface, Query(string, []Value) (Rows, error)

around a Firefox/IE bug where the transparent `button` background\n// results in a loss of the default `button` focus styles.\n//\n// Credit: https://github.com/suitcss/base/\nbutton:focus {\n  outline: 1px dotted;\n  outline: 5px auto -webkit-focus-ring-color;\n}\n\ninput,\nbutton,\nselect,\noptgroup,\ntextarea {\n  margin: 0; // Remove the margin in Firefox and Safari\n  font-family: inherit;\n  @include font-size(inherit);\n  line-height: inherit;\n}\n\nbutton,\ninput {\n  overflow: visible; //...