- JSON log output is configurable and now supports writing info messages to stdout and error messages to stderr. Info messages can be buffered in memory. The default is to write both to stdout without buffering, as before. ([#104873](https://github.com/kubernetes/kubernetes/pull/104873), [@pohly](https://github.com/pohly))

### Other (Cleanup or Flake)

- Client-go: reduce verbosity of "Starting/Stopping reflector" messages to 3 again ([#102788](https://github.com/kubernetes/kubernetes/pull/102788), [@pohly](https://github.com/pohly)) [SIG API Machinery]
- Update the Debian images to pick up CVE fixes in the base images:

- The `--quiet` option to `kubectl run` now suppresses resource deletion messages emitted when the `--rm` option is specified. ([#73266](https://github.com/kubernetes/kubernetes/pull/73266), [@awh](https://github.com/awh))

    * Some refactoring of error/status messages and functions to align with new approach.
* This PR will leverage subtests on the existing table tests for the scheduler units. ([#63661](https://github.com/kubernetes/kubernetes/pull/63661), [@xchapter7x](https://github.com/xchapter7x))
    * Some refactoring of error/status messages and functions to align with new approach.

### Feature

- Modified log messages that were logged with `"v":0` in JSON output although they were debug messages with a higher verbosity. ([#106978](https://github.com/kubernetes/kubernetes/pull/106978), [@p...

  logs to populate the termination message if the user does not write to the
  termination message log file. The termination message file is now properly
  readable for end users and has a maximum size (4k bytes) to prevent abuse.
  Each pod may have up to 12k bytes of termination messages before the contents
  of each will be truncated.

- [`KT-57738`](https://youtrack.jetbrains.com/issue/KT-57738) K2: unresolved class fields and methods in kotlin scripts
- [`KT-59449`](https://youtrack.jetbrains.com/issue/KT-59449) K2: Diagnostic messages contain debugging-style rendered FIR
- [`KT-59849`](https://youtrack.jetbrains.com/issue/KT-59849) K2: IllegalArgumentException: List has more than one element

- Fixes the flooding warning messages about setting volume ownership for configmap/secret volumes ([#92878](https://github.com/kubernetes/kubernetes/pull/92878), [@jvanz](https://github.com/jvanz)) [SIG Instrumentation, Node and Storage]

- Migrate some log messages to structured logging in `pkg/volume/plugins.go`. ([#101510](https://github.com/kubernetes/kubernetes/pull/101510), [@huchengze](https://github.com/huchengze))