* kubeadm: reset raises warnings if it cannot delete folders ([#85265](https://github.com/kubernetes/kubernetes/pull/85265), [@SataQiu](https://github.com/SataQiu))

- Fix a bug that preempting a pod may block forever. ([#65987](https://github.com/kubernetes/kubernetes/pull/65987), [@Random-Liu](https://github.com/Random-Liu))
- fixes the errors/warnings in fluentd configuration ([#67947](https://github.com/kubernetes/kubernetes/pull/67947), [@saravanan30erd](https://github.com/saravanan30erd))

  as deprecated and print a warning if it is used directly; it will be removed in
  a future release. Add a replacement sub-phase ''enable-client-cert-rotation''.' ([#124419](https://github.com/kubernetes/kubernetes/pull/124419), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

- kubeadm: fix a potential panic if kubeadm discovers an invalid, existing kubeconfig file ([#79165](https://github.com/kubernetes/kubernetes/pull/79165), [@neolit123](https://github.com/neolit123))
- kubeadm: treat non-fatal errors as warnings when doing reset ([#80862](https://github.com/kubernetes/kubernetes/pull/80862), [@drpaneas](https://github.com/drpaneas))

- The apiserver will now return warnings if you create objects with "invalid" IP or
  CIDR values (like "192.168.000.005", which should not have the extra zeros).
  Values with non-standard formats can introduce security problems, and will

  Don't use these flags. Using deprecated flags causes the server to print a warning. Using a removed flag causes the server to abort the startup.

* The following deprecated flags were removed from `kubelet`:

  * `api-servers` - add apiserver addresses to the kubeconfig file instead.

  Don't use these flags. Using deprecated flags causes the kubelet to print a warning. Using a removed flag causes the kubelet to abort the startup.

        } else if (platformSystemProperty == JDK8_ALPN_PROPERTY) {
          if (!isAlpnBootEnabled()) {
            System.err.println("Warning: ALPN Boot not enabled")
          }
        } else if (platformSystemProperty == JDK8_PROPERTY) {
          if (isAlpnBootEnabled()) {
            System.err.println("Warning: ALPN Boot enabled unintentionally")
          }

    @Override
    public boolean isWarnEnabled() {
        return logger.isLoggable(Level.WARNING);
    }

    @Override
    public void warn(final String message) {
        logger.logp(Level.WARNING, sourceClass, null, message);
    }

    @Override
    public void warn(final String message, final Throwable t) {
        logger.logp(Level.WARNING, sourceClass, null, message, t);
    }

    @Override

ol-file.is-warning~.warning-feedback,.form-control-file.is-warning~.warning-tooltip{display:block}.form-check-input.is-warning~.form-check-label{color:#ffc107}.form-check-input.is-warning~.warning-feedback,.form-check-input.is-warning~.warning-tooltip{display:block}.custom-control-input.is-warning~.custom-control-label{color:#ffc107}.custom-control-input.is-warning~.custom-control-label::before{border-color:#ffc107}.custom-control-input.is-warning~.warning-feedback,.custom-control-input.is-warni...

            // Should not throw exception but log warning
        } catch (Exception e) {
            fail("writeThreadDump should handle invalid paths gracefully: " + e.getMessage());
        }
    }

    public void test_writeThreadDump_withNullPath() {
        try {
            ThreadDumpUtil.writeThreadDump(null);
            // Should not throw exception but log warning
        } catch (Exception e) {