### Other notable changes

- Register/Deregister Targets in chunks for AWS TargetGroup ([#101592](https://github.com/kubernetes/ku...

	register["A0"] = riscv.REG_A0
	register["A1"] = riscv.REG_A1
	register["A2"] = riscv.REG_A2
	register["A3"] = riscv.REG_A3
	register["A4"] = riscv.REG_A4
	register["A5"] = riscv.REG_A5
	register["A6"] = riscv.REG_A6
	register["A7"] = riscv.REG_A7
	register["S2"] = riscv.REG_S2
	register["S3"] = riscv.REG_S3
	register["S4"] = riscv.REG_S4
	register["S5"] = riscv.REG_S5
	register["S6"] = riscv.REG_S6

* GCE bring-up: Differentiate NODE_TAGS from NODE_INSTANCE_PREFIX ([#29141](https://github.com/kubernetes/kubernetes/pull/29141), [@zmerlynn](https://github.com/zmerlynn))
* hyperkube: fix build for 3rd party registry (again) ([#28489](https://github.com/kubernetes/kubernetes/pull/28489), [@liyimeng](https://github.com/liyimeng))

- **Overhauled metrics**: Kubernetes has previously made extensive use of a global metrics registry to register metrics to be exposed. By implementing a metrics registry, metrics are registered in more transparent means. Previously, Kubernetes metrics have been excluded from any kind of stability requirements.

public abstract class DriverManagerUtil {

    /**
     * Do not instantiate.
     */
    protected DriverManagerUtil() {
    }

    /**
     * Registers a JDBC driver.
     *
     * @param driverClassName
     *            The class name of the JDBC driver to register. Must not be {@literal null} or an empty string.
     */
    public static void registerDriver(final String driverClassName) {

Some symbols, such as <code>R1</code> or <code>LR</code>,
are predefined and refer to registers.
The exact set depends on the architecture.
</p>

<p>
There are four predeclared symbols that refer to pseudo-registers.
These are not real registers, but rather virtual registers maintained by
the toolchain, such as a frame pointer.
The set of pseudo-registers is the same for all architectures:
</p>

<ul>

<li>

     */
    protected int maxClientFactorySize = 10000;

    /**
     * Registers a CrawlerClientFactory with this creator.
     * All existing client mappings will be loaded into the new factory.
     * @param crawlerClientFactory The CrawlerClientFactory to register.
     */
    public synchronized void register(final CrawlerClientFactory crawlerClientFactory) {

  In Linux containers, this means setting the FQDN in the hostname field of the 
  kernel (the nodename field of struct utsname).  In Windows containers, this
  means setting the this means setting the registry value of hostname for the registry key HKEY_LOCAL_MACHINE\\SYSTEM\\CurrentControlSet\\Services\\Tcpip\\Parameters to FQDN. 

     * For other types of values, they are registered directly.
     *
     * @param data the RenderData object to register the value in
     * @param key the key to associate with the value
     * @param value the value to register; can be null, Entity, Collection, or any other object
     */
    public static void register(final RenderData data, final String key, final Object value) {
        if (value == null) {
            return;
        }