- The issuer of the certificate was unknown (`x509.UnknownAuthorityError`)
  - The requested name did not match the set of authorized names (`x509.HostnameError`)

- Fixed a bug that prevents kubectl to validate CRDs with schema using x-kubernetes-preserve-unknown-fields on object fields.
  Fix kubectl SchemaError on CRDs with schema using x-kubernetes-preserve-unknown-fields on array types. ([#96562](https://github.com/kubernetes/kubernetes/pull/96562), [@gautierdelorme](https://github.com/gautierdelorme)) [SIG API Machinery and Testing]

* Fixes a bug in openapi published for custom resources using x-kubernetes-preserve-unknown-fields extensions, so that kubectl will allow sending unknown fields for that portion of the object. ([#79636](https://github.com/kubernetes/kubernetes/pull/79636), [@liggitt](https://github.com/liggitt))

  - The issuer of the certificate is unknown (x509.UnknownAuthorityError)
  - The requested name does not match the set of authorized names (x509.HostnameError)

                        }
                    }
                }
            }

            this.isExists = true;

        } catch (final UnknownHostException uhe) {
            log.debug("Unknown host", uhe);
            // Cache negative result for host resolution failures
            this.attrExpiration = currentTime + Math.min(getContext().getConfig().getAttributeCacheTimeout(), 30000);
            return false;

- Kubeadm: improve the strict parsing of user YAML/JSON configuration files. Next to printing warnings for unknown and duplicate fields (current state), also print warnings for fields with incorrect case sensitivity - e.g. `controlPlaneEndpoint` (valid), `ControlPlaneEndpoint` (invalid). Instead of only printing warnings during `init` and `join` also print warnings...

            )
        else:
            for r in router.routes:
                path = getattr(r, "path")  # noqa: B009
                name = getattr(r, "name", "unknown")
                if path is not None and not path:
                    raise FastAPIError(
                        f"Prefix and path cannot be both empty (path operation: {name})"
                    )

                        indexName = configIndex.replaceFirst(Pattern.quote(LOG_INDEX_PREFIX), name);
                    } else {
                        throw new FessSystemException("Unknown config index: " + configIndex);
                    }
                    final boolean exists = existsIndex(indexName);
                    if (!exists) {
                        createIndex(configIndex, indexName);

* Introduce new generator for apps/v1beta1 deployments ([#42362](https://github.com/kubernetes/kubernetes/pull/42362), [@soltysh](https://github.com/soltysh))

### Node
* Set all node conditions to Unknown when node is unreachable ([#36592](https://github.com/kubernetes/kubernetes/pull/36592), [@andrewsykim](https://github.com/andrewsykim))

### Pod

  - The issuer of the certificate is unknown (x509.UnknownAuthorityError)
  - The requested name does not match the set of authorized names (x509.HostnameError)