- `kubeadm join --experimental-control-plane` now automatically adds a new etcd member for `local etcd` mode, further simplifying required tasks for HA clusters setup.
- Improvements were made to `kubeadm reset` related to cleaning  etcd and notifying the user about the state of iptables.
- kubeadm commands now print warnings if input YAML documents contain unknown or duplicate fields.

     *
     * @return the configuration object
     */
    protected Configuration getConfig() {
        return this.config;
    }

    @Override
    public void reset() {
        this.flags = 0;
        this.digest = null;
        this.sessionId = 0;
        this.treeId = 0;
    }

    /**
     * @return the command
     */
    @Override

                            }
                        }
                    } catch (final Exception e) {
                        logger.warn(e.getLocalizedMessage());
                    }
                    buf.reset();
                } else {
                    buf.write(b);
                }
            }
        }));
    }

    /** The charset used for encoding and decoding. */

   - In version 1.8, enable this behavior by setting the
     `--horizontal-pod-autoscaler-use-rest-clients` flag to `true`.

   - In version 1.9, this behavior will be enabled by default, and must be explicitly
     disabled by setting the `--horizontal-pod-autoscaler-use-rest-clients` flag to `false`.

### Cluster Lifecycle

- Removed local etcd members from the etcd cluster when `kubeadm reset` ([#74112](https://github.com/kubernetes/kubernetes/pull/74112), [@pytimer](https://github.com/pytimer))

* kubeadm: reset: use crictl to reset containers ([#54721](https://github.com/kubernetes/kubernetes/pull/54721), [@runcom](https://github.com/runcom))

    - [kubectl delete: < v1.4.0 client vs >=v1.4.0 cluster](#kubectl-delete--v140-client-vs-v140-cluster)
    - [DELETE operation in REST API](#delete-operation-in-rest-api)
  - [Action Required Before Upgrading](#action-required-before-upgrading)
- [optionally, remove the old secret](#optionally-remove-the-old-secret)

        String nameWithSpaces = "COMPUTER";
        byte[] nameBytes = new byte[16];
        System.arraycopy(nameWithSpaces.getBytes("US-ASCII"), 0, nameBytes, 0, nameWithSpaces.length());
        // Fill rest with spaces (0x20)
        for (int i = nameWithSpaces.length(); i < 15; i++) {
            nameBytes[i] = 0x20;
        }
        nameBytes[15] = 0x00; // Last byte for hex code position

    }

    @Test
    @DisplayName("resolveInContext builds relative paths with and without share")
    void testResolveInContext() {
        // Context without share: first element becomes share, rest path
        SmbResourceLocatorImpl base = locator("smb://server/");
        SmbResourceLocator context = mock(SmbResourceLocator.class);
        when(context.getShare()).thenReturn(null);

     * Property {@code jcifs.smb.client.strictResourceLifecycle} (bool, default false)
     *
     * If enabled, SmbFile instances starting with their first use will hold a reference to their tree.
     * This means that trees/sessions/connections won't be idle-disconnected even if there are no other active
     * references (currently executing code, file descriptors).
     *