## Changelog since v1.23.15

## Changes by Kind

### API Change

- Kubernetes 1.23 is now built with go1.19.4. To match behavior of previous Kubernetes 1.23 patch releases:
  - `kube-apiserver` defaults the GOGC setting to 63, to approximate go1.17 garbage collection memory performance in heavily loaded API servers

	/*1215*/ uint16(xSetOp), uint16(STR),
	/*1217*/ uint16(xArgR32M16),
	/*1218*/ uint16(xMatch),
	/*1219*/ uint16(xSetOp), uint16(STR),
	/*1221*/ uint16(xArgR64M16),
	/*1222*/ uint16(xMatch),
	/*1223*/ uint16(xSetOp), uint16(LLDT),
	/*1225*/ uint16(xArgRM16),
	/*1226*/ uint16(xMatch),
	/*1227*/ uint16(xSetOp), uint16(LTR),
	/*1229*/ uint16(xArgRM16),
	/*1230*/ uint16(xMatch),

                  any applicable header modification configuration) MUST forward this
                  header unmodified to the backend. \n Valid values for Hostnames
                  are determined by RFC 1123 definition of a hostname with 2 notable
                  exceptions: \n 1. IPs are not allowed. 2. A hostname may be prefixed
                  with a wildcard label (`*.`). The wildcard label must appear by

* 🌐 Add Japanese translation for `docs/ja/docs/tutorial/body-fields.md`. PR [#1923](https://github.com/tiangolo/fastapi/pull/1923) by [@SwftAlpc](https://github.com/SwftAlpc).
* 🌐 Add German translation for `docs/de/docs/tutorial/index.md`. PR [#9502](https://github.com/tiangolo/fastapi/pull/9502) by [@fhabers21](https://github.com/fhabers21).

// CHECK:           %[[DIVISOR:.*]] = "mhlo.reduce_window"(%[[ALL_ONES]], %[[ZERO]])
// CHECK-SAME:        padding = dense<{{\[\[}}0, 0], [0, 0], [0, 1], [1, 1]]>
// CHECK-SAME:        window_dimensions = dense<[1, 1, 2, 3]>
// CHECK-SAME:        window_strides = dense<[1, 1, 4, 4]>
// CHECK:           ^bb0(%[[ARG1:.*]]: tensor<f32>, %[[ARG2:.*]]: tensor<f32>):
// CHECK:             %[[SUM1:.*]] = mhlo.add %[[ARG1]], %[[ARG2]] : tensor<f32>

- Modify DNS-1123 error messages to indicate that RFC 1123 is not followed exactly ([#94182](https://github.com/kubernetes/kubernetes/pull/94182), [@mattfenwick](https://github.com/mattfenwick)) [SIG API Machinery, Apps, Auth, Network and Node]

* Restored the pre-1.10 behavior of the openstack cloud provider, which uses the instance name as the Kubernetes Node name. This requires instances be named with RFC-1123 compatible names. ([#63903](https://github.com/kubernetes/kubernetes/pull/63903), [@liggitt](https://github.com/liggitt))

  // externalName is the external reference that discovery mechanisms will
  // return as an alias for this service (e.g. a DNS CNAME record). No
  // proxying will be involved.  Must be a lowercase RFC-1123 hostname
  // (https://tools.ietf.org/html/rfc1123) and requires `type` to be "ExternalName".
  // +optional
  optional string externalName = 10;

	IPFamilyPolicy *IPFamilyPolicy

	// ExternalName is the external reference that kubedns or equivalent will
	// return as a CNAME record for this service. No proxying will be involved.
	// Must be a valid RFC-1123 hostname (https://tools.ietf.org/html/rfc1123)
	// and requires Type to be ExternalName.
	ExternalName string

	// ExternalIPs are used by external load balancers, or can be set by

	"externalName":                  "externalName is the external reference that discovery mechanisms will return as an alias for this service (e.g. a DNS CNAME record). No proxying will be involved.  Must be a lowercase RFC-1123 hostname (https://tools.ietf.org/html/rfc1123) and requires `type` to be \"ExternalName\".",