# Release 2.21.0

## TensorFlow

<INSERT SMALL BLURB ABOUT RELEASE FOCUS AREA AND POTENTIAL TOOLCHAIN CHANGES>

### Breaking Changes

* <DOCUMENT BREAKING CHANGES HERE>
* <THIS SECTION SHOULD CONTAIN API, ABI AND BEHAVIORAL BREAKING CHANGES>

### Known Caveats

* <CAVEATS REGARDING THE RELEASE (BUT NOT BREAKING CHANGES).>
* <ADDING/BUMPING DEPENDENCIES SHOULD GO HERE>
* <KNOWN LACK OF SUPPORT ON SOME PLATFORM, SHOULD GO HERE>

 *
 * When merging `releaseX` branch into `master`, we should only use the release note from the `master` branch,
 * but sometimes changes on release notes.md was brought to master and merged unnoticed,
 * e.g https://github.com/gradle/gradle/pull/25825
 *
 * This script is to check if there is any merge commit that brings changes from release branch to master.
 * Usage: groovy CheckBadMerge.groovy <commit1> <commit2> ...

    - [Other notable changes](#other-notable-changes)
- [v1.10.12](#v11012)
  - [Downloads for v1.10.12](#downloads-for-v11012)
    - [Client Binaries](#client-binaries-1)
    - [Server Binaries](#server-binaries-1)
    - [Node Binaries](#node-binaries-1)
  - [Changelog since v1.10.11](#changelog-since-v11011)
    - [Other notable changes](#other-notable-changes-1)
- [v1.10.11](#v11011)

    - [Other notable changes](#other-notable-changes)
- [v1.5.7](#v157)
  - [Downloads for v1.5.7](#downloads-for-v157)
    - [Client Binaries](#client-binaries-1)
    - [Server Binaries](#server-binaries-1)
    - [Node Binaries](#node-binaries-1)
  - [Changelog since v1.5.6](#changelog-since-v156)
    - [Other notable changes](#other-notable-changes-1)
- [v1.5.6](#v156)

            return false;
        }
        refresh();
        return true;
    }

    /**
     * Stores all elevate words in the suggest index.
     *
     * @param apply true to apply the changes immediately.
     */
    public void storeAllElevateWords(final boolean apply) {
        deleteAllElevateWord(apply);

    - [Dependencies](#dependencies-7)
      - [Changed](#changed-7)
      - [Unchanged](#unchanged)
      - [Removed](#removed-7)
      - [Detailed go Dependency Changes](#detailed-go-dependency-changes)
        - [Added](#added-7)
        - [Changed](#changed-8)
        - [Removed](#removed-8)
- [v1.16.0-rc.2](#v1160-rc2)
  - [Downloads for v1.16.0-rc.2](#downloads-for-v1160-rc2)
    - [Client Binaries](#client-binaries-17)

      - [Other Notable Changes](#other-notable-changes-15)
  - [Changes to Cluster Provisioning Scripts](#changes-to-cluster-provisioning-scripts)
    - [AWS](#aws-1)
    - [Juju](#juju)
    - [libvirt CoreOS](#libvirt-coreos)
    - [GCE](#gce-1)
    - [OpenStack](#openstack)
    - [Container Images](#container-images)
    - [Other Notable Changes](#other-notable-changes-16)
  - [Changes to Addons](#changes-to-addons)

     * This class handles the process of writing changes to a temporary file
     * and then replacing the original file upon successful commit.
     */
    protected class SynonymUpdater implements Closeable {

        /** A flag indicating whether the changes have been committed. */
        protected boolean isCommit = false;

        /** The temporary file to write changes to. */
        protected File newFile;

-   Linux, MacOS, and Windows machines (these pool definitions are internal)
-   x86 and arm64
-   CPU-only, or with NVIDIA CUDA support (Linux only), or with TPUs

## How to Test Your Changes to TensorFlow

You may check how your changes will affect TensorFlow by:

1. Creating a PR and observing the presubmit test results
2. Running the CI scripts locally, as explained below

    - [Container Images](#container-images-1)
  - [Changelog since v1.23.15](#changelog-since-v12315)
  - [Changes by Kind](#changes-by-kind-1)
    - [API Change](#api-change)
    - [Feature](#feature-1)
    - [Bug or Regression](#bug-or-regression-1)
  - [Dependencies](#dependencies-1)
    - [Added](#added-1)
    - [Changed](#changed-1)
    - [Removed](#removed-1)
- [v1.23.15](#v12315)
  - [Downloads for v1.23.15](#downloads-for-v12315)