- kubeadm: `kubeadm upgrade node` now supports `addon` and `post-upgrade` phases. Users can use `kubeadm upgrade node phase addon` to execute the addon upgrade, or use `kubeadm upgrade node --skip-phases addon` to skip the addon upgrade. If you were previously skipping an addon subphase on `kubeadm init` you should now skip the same addon when calling `kubeadm upgrade apply` and `kubeadm upgrade node`. Currently, the `post-upgrade` phase is...

        final SearchEngineClient searchEngineClient = ComponentUtil.getSearchEngineClient();

        if (logger.isDebugEnabled()) {
            logger.debug("Adding document: url={}", dataMap.get(fessConfig.getIndexFieldUrl()));
        }

        //   required check
        final Object urlObj = dataMap.get(fessConfig.getIndexFieldUrl());
        if (urlObj == null) {

        if (smbAuthentications != null) {
            for (final SmbAuthentication smbAuthentication : smbAuthentications) {
                if (logger.isDebugEnabled()) {
                    logger.debug("Adding SmbAuthentication: {}", smbAuthentication);
                }
                holder.add(smbAuthentication);
            }
        }
        smbAuthenticationHolder = holder;
    }

    @Override

3. Make focused commits
4. Add tests
5. Format code (`mvn formatter:format && mvn license:format`)
6. Run tests (`mvn test`)
7. Open Pull Request

---

## Common Development Tasks

### Adding a Protocol Client

1. **Implement `CrawlerClient`**:
```java
public class MyClient extends AbstractCrawlerClient {
    @Override
    public ResponseData execute(RequestData request) { /* ... */ }

        final Matcher matcher = pattern.matcher(content);
        if (matcher.find()) {
            return matcher.group(1);
        }
        return null;
    }

    /**
     * Gets a duplicate URL by adding or removing a trailing slash.
     *
     * @param requestData the request data to create a duplicate for
     * @return the request data with the duplicate URL
     */

  - [Changelog since v1.33.3](#changelog-since-v1333)
  - [Important Security Information](#important-security-information)
    - [CVE-2025-5187: Nodes can delete themselves by adding an OwnerReference](#cve-2025-5187-nodes-can-delete-themselves-by-adding-an-ownerreference)
  - [Changes by Kind](#changes-by-kind-3)
    - [API Change](#api-change)
    - [Feature](#feature-3)
    - [Bug or Regression](#bug-or-regression-3)

              return oldValue;
            }
          } catch (ArithmeticException overflow) {
            throw new IllegalArgumentException(
                "Overflow adding " + occurrences + " occurrences to a count of " + oldValue);
          }
        } else {
          // In the case of a concurrent remove, we might observe a zero value, which means another

- Bumped addon manager to use `kubectl` version `v1.32.2`. ([#130548](https://github.com/kubernetes/kubernetes/pull/130548), [@Jefftree](https://github.com/Jefftree)) [SIG Cloud Provider, Scalability and Testing]

    public ExecJob useLocalFesen(final boolean useLocalFesen) {
        this.useLocalFesen = useLocalFesen;
        return this;
    }

    /**
     * Enables remote debugging for this job execution.
     * Adds JVM options for remote debugging on localhost:8000.
     *
     * @return this ExecJob instance for method chaining
     */
    public ExecJob remoteDebug() {

        if (logger.isDebugEnabled()) {
            logger.debug("Loaded QueryCommand: {}", name);
        }
        queryCommandMap.put(name, queryCommand);
    }

    /**
     * Adds a filter to the processing pipeline.
     * After adding a filter, the filter chain is recreated to include the new filter.
     *
     * @param filter the filter to add to the processing pipeline
     */