### **Cluster Federation**
#### Placement Policy
* [alpha] The federation-apiserver now supports a SchedulingPolicy admission controller that enables policy-based control over placement of federated resources. For more information, see [Set up placement policies in Federation](https://kubernetes.io/docs/tasks/federation/set-up-placement-policies-federation/).

#### Cluster Selection

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                                              TF_Operation* input);

// Request that `desc` be co-located on the device where `op`
// is placed.
//
// Use of this is discouraged since the implementation of device placement is
// subject to change. Primarily intended for internal libraries
TF_CAPI_EXPORT extern void TF_ColocateWith(TF_OperationDescription* desc,
                                           TF_Operation* op);

        mean.

*   TF Core:

    *   `tf.custom_gradient` can now be applied to functions that accept
        "composite" tensors, such as `tf.RaggedTensor`, as inputs.
    *   Fix device placement issues related to datasets with ragged tensors of
        strings (i.e. variant encoded data with types not supported on GPU).
    *   'experimental_follow_type_hints' for tf.function has been deprecated.

### StatefulSet

* Fix zone placement heuristics so that multiple mounts in a StatefulSet pod are created in the same zone ([#40910](https://github.com/kubernetes/kubernetes/pull/40910), [@justinsb](https://github.com/justinsb))

        <constraint name="__context__" within="" contains="" />
        <constraint name="src" within="" contains="" />

    public void manageArtifact(Artifact artifact, Artifact replacement) {
        String msg = indent + artifact;
        msg += " (";
        if (replacement.getVersion() != null) {
            msg += "applying version: " + replacement.getVersion() + ";";
        }
        if (replacement.getScope() != null) {
            msg += "applying artifactScope: " + replacement.getScope();
        }
        msg += ")";

     * @throws NullPointerException if {@code replacement} is null
     */
    @CanIgnoreReturnValue
    public Builder addEscape(char c, String replacement) {
      checkNotNull(replacement);
      // This can replace an existing character (the builder is re-usable).
      replacementMap.put(c, replacement);
      return this;
    }

    /** Returns a new escaper based on the current state of the builder. */
    public Escaper build() {

  /**
   * Creates a new ArrayBasedUnicodeEscaper instance with the given replacement map and specified
   * safe range. If {@code safeMax < safeMin} then no code points are considered safe. This
   * initializer is useful when explicit instances of ArrayBasedEscaperMap are used to allow the
   * sharing of large replacement mappings.
   *
   * <p>If a code point has no mapped replacement then it is checked against the safe range. If it