- Fewer candidates are enumerated for preemption to improve performance in large clusters. ([#94814](https://github.com/kubernetes/kubernetes/pull/94814), [@adtac](https://github.com/adtac))
- Fix conversions for custom metrics. ([#94481](https://github.com/kubernetes/kubernetes/pull/94481), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery and Instrumentation]

## Changes by Kind

### Bug or Regression

- Fixes a regression in 1.27.0 that resulted in "missing metadata in converted object" errors when modifying objects for multi-version custom resource definitions with a conversion strategy of `None`. ([#117305](https://github.com/kubernetes/kubernetes/pull/117305), [@ncdc](https://github.com/ncdc)) [SIG API Machinery]

re-enable deprecated legacy behavior of treating the CommonName of X.509 serving certificates as a host name. This behavior has been disabled by default since Kubernetes 1.19 / go 1.15. Serving certificates used by admission webhooks, custom resource conversion webhooks, and aggregated API servers must now include valid Subject Alternative Names. If you are running Kubernetes 1.22 with `GODEBUG=x509ignoreCN=0` set, check the `apiserver_kube_aggregator_x509_missing_san_total` and `apiserver_webhooks_x5...

- Kubernetes 1.24 is built with go1.18, which will no longer validate certificates signed with a SHA-1 hash algorithm by default. See https://golang.org/doc/go1.18#sha1 for more details. If you are using certificates like this in admission or conversion ([#109024](https://github.com/kubernetes/kubernetes/pull/109024), [@stlaz](https://github.com/stlaz))

new(field.Element).Negate(xx) xx = xx.Select(xxNeg, xx, int(x[31]>>7)) v.x.Set(xx) v.y.Set(y) v.z.One() v.t.Multiply(xx, y) // xy = T / Z return v, nil } func copyFieldElement(buf *[32]byte, v *field.Element) []byte { copy(buf[:], v.Bytes()) return buf[:] } // Conversions. func (v *projP2) FromP1xP1(p *projP1xP1) *projP2 { v.X.Multiply(&p.X, &p.T) v.Y.Multiply(&p.Y, &p.Z) v.Z.Multiply(&p.Z, &p.T) return v } func (v *projP2) FromP3(p *Point) *projP2 { v.X.Set(&p.x) v.Y.Set(&p.y) v.Z.Set(&p.z) return v } func (v *Point)...