* Fix OpenAPI/JSON Schema generation for two functions with the same name (in different modules) with the same composite bodies.
    * Composite bodies' IDs are now based on path, not only on route name, as the auto-generated name uses the function names, that can be duplicated in different modules.
    * The same new ID generation applies to response models.

- The rules for incrementing `metadata.generation` of custom resources changed: ([#69059](https://github.com/kubernetes/kubernetes/pull/69059), [@caesarxuchao](https://github.com/caesarxuchao))
  - If the custom resource participates the spec/status convention, the metadata.generation of the CR increments when there is any change, except for the changes to the metadata or the changes to the status.

- [`KT-59548`](https://youtrack.jetbrains.com/issue/KT-59548) FIR2IR: inconsistent generation of dispatch receiver for object methods
- [`KT-55072`](https://youtrack.jetbrains.com/issue/KT-55072) K2: False positive "suspension point is inside a critical section"

- Fixes conversion error in multi-version custom resources that could cause metadata.generation to increment on no-op patches or updates of a custom resource. ([#88995](https://github.com/kubernetes/kubernetes/pull/88995), [@liggitt](https://github.com/liggitt)) [SIG API Machinery]

* Fixes fake client generation for non-namespaced subresources ([#60445](https://github.com/kubernetes/kubernetes/pull/60445), [@jhorwit2](https://github.com/jhorwit2))
* `kubectl delete` with selection criteria defaults to ignoring not found errors ([#63490](https://github.com/kubernetes/kubernetes/pull/63490), [@deads2k](https://github.com/deads2k))

- Restore --verify-only function in code generation wrappers. ([#123261](https://github.com/kubernetes/kubernetes/pull/123261), [@skitt](https://github.com/skitt)) [SIG API Machinery]

- `etcd_request_latencies_summary` -> `etcd_request_latency_seconds`
- `transformation_latencies_microseconds` -> `transformation_latencies_seconds`
- `data_key_generation_latencies_microseconds` -> `data_key_generation_latencies_seconds`

## Notable Features

*   Development of Kubernetes Federation has moved to [github.com/kubernetes/federation](https://github.com/kubernetes/federation). This move out of tree also means that Federation will begin releasing separately from Kubernetes. Impact:
    *   Federation-specific behavior will no longer be included in kubectl
    *   kubefed will no longer be released as part of Kubernetes

- `kubectl wait` ensures that observedGeneration >= generation to prevent stale state reporting. An example scenario can be found on CRD updates. ([#97408](https://github.com/kubernetes/kubernetes/pull/97408), [@KnicKnic](https://github.com/KnicKnic))

### Documentation

- The go version defined in `.go-version` is now fetched when invoking test, build, and code generation targets if the current go version does not match it. Set $FORCE_HOST_GO=y while testing or building to skip this behavior, or set $GO_VERSION to override the selected go version. ([#115377](https://github.com/kubernetes/kubernetes/pull/115377),...