## 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]

### Promoted Server Side Unknown Field Validation to Beta

- Kube-apiserver: openapi schemas published for custom resources now reference standard ListMeta schema definitions ([#92546](https://github.com/kubernetes/kubernetes/pull/92546), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

BSD-style // license that can be found in the LICENSE file. package fips140 import "io" // Hash is the common interface implemented by all hash functions. It is a copy // of [hash.Hash] from the standard library, to avoid depending on security // definitions from outside of the module. type Hash interface { // Write (via the embedded io.Writer interface) adds more data to the // running hash. It never returns an error. io.Writer // Sum appends the current hash to b and returns the resulting slice. //...

// ipad = 0x36 byte repeated for key length // opad = 0x5c byte repeated for key length // hmac = H([key ^ opad] H([key ^ ipad] text)) // marshalable is the combination of encoding.BinaryMarshaler and // encoding.BinaryUnmarshaler. Their method definitions are repeated here to // avoid a dependency on the encoding package. type marshalable interface { MarshalBinary() ([]byte, error) UnmarshalBinary([]byte) error } type HMAC struct { // opad and ipad may share underlying storage with HMAC clones. opad,...