Rebase Huawei serving commits onto new-serving-2.20

.bazelversion

@@ -1,2 +1,2 @@
-7.4.1
+7.7.0
 # NOTE: Update Bazel version in tensorflow/tools/ci_build/release/common.sh.oss

.github/bot_config.yml

@@ -15,7 +15,6 @@
 
 # A list of assignees
 assignees:
-   - tilakrayal
    - Venkat6871
 # A list of assignees for compiler folder
 compiler_assignees:

.github/dependabot.yml

@@ -31,14 +31,6 @@ updates:
       - dependency-name: "*"
         update-types: ["version-update:semver-major", "version-update:semver-minor"]
 
-  - package-ecosystem: docker
-    directory: /ci/official/containers/linux_arm64
-    schedule:
-      interval: monthly
-    ignore:
-      - dependency-name: "*"
-        update-types: ["version-update:semver-major", "version-update:semver-minor"]
-
   - package-ecosystem: docker
     directory: /tensorflow/tools/gcs_test
     schedule:

.github/workflows/arm-cd.yml

@@ -52,12 +52,12 @@ jobs:
         run: find /home/ubuntu/actions-runner/_work/tensorflow/tensorflow/. -name . -o -prune -exec sudo rm -rf -- {} + || true
       - name: Checkout repository for nightly (skipped for releases)
         if: ${{ github.event_name == 'schedule' }}
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           ref: 'nightly'
       - name: Checkout repository for releases (skipped for nightly)
         if: ${{ github.event_name == 'push' }}
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Build and test pip wheel
         shell: bash
         run: |

.github/workflows/arm-ci-extended-cpp.yml

@@ -50,12 +50,12 @@ jobs:
         run: find /home/ubuntu/actions-runner/_work/tensorflow/tensorflow/. -name . -o -prune -exec sudo rm -rf -- {} + || true
       - name: Checkout repository for nightly (skipped for releases)
         if: ${{ github.event_name == 'schedule' }}
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           ref: 'nightly'
       - name: Checkout repository
         if: ${{ github.event_name == 'push' }}
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Build binary and run C++ tests
         shell: bash
         run: |

.github/workflows/arm-ci-extended.yml

@@ -51,12 +51,12 @@ jobs:
         run: find /home/ubuntu/actions-runner/_work/tensorflow/tensorflow/. -name . -o -prune -exec sudo rm -rf -- {} + || true
       - name: Checkout repository for nightly (skipped for releases)
         if: ${{ github.event_name == 'schedule' }}
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           ref: 'nightly'
       - name: Checkout repository
         if: ${{ github.event_name == 'push' }}
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Build binary and run python tests on nightly for all python versions
         shell: bash
         run: |

.github/workflows/arm-ci.yml

@@ -47,7 +47,7 @@ jobs:
         shell: bash
         run: find /home/ubuntu/actions-runner/_work/tensorflow/tensorflow/. -name . -o -prune -exec sudo rm -rf -- {} + || true
       - name: Checkout repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Build binary and run python tests
         shell: bash
         run: |

.github/workflows/cffconvert.yml

@@ -30,7 +30,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Check out a copy of the repository
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
 
       - name: Check whether the citation metadata from CITATION.cff is valid
         uses: citation-file-format/cffconvert-github-action@4cf11baa70a673bfdf9dad0acc7ee33b3f4b6084 # v2.0.0

.github/workflows/issue-on-pr-rollback.yml

@@ -33,9 +33,9 @@ jobs:
       startsWith(github.event.head_commit.message, 'Rollback of PR #')
     steps:
       - name: Checkout repo
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       - name: Create a new Github Issue
-        uses: actions/github-script@60a0d83039c74a4aee543508d2ffcb1c3799cdea # v7.0.1
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
         with:
           github-token: ${{secrets.GITHUB_TOKEN}}
           script: |

.github/workflows/osv-scanner-scheduled.yml

@@ -28,7 +28,7 @@ permissions:
 jobs:
   scan-scheduled:
     if: github.repository == 'tensorflow/tensorflow'
-    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v2.0.1"
+    uses: "google/osv-scanner-action/.github/workflows/osv-scanner-reusable.yml@v2.2.4"
     with:
       scan-args: |-
         --lockfile=requirements.txt:./requirements_lock_3_9.txt

.github/workflows/pylint-presubmit.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout code
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Get file changes
       id: get_file_changes
       uses: trilom/file-changes-action@a6ca26c14274c33b15e6499323aac178af06ad4b # v1.2.4
@@ -38,7 +38,7 @@ jobs:
       run: |
         echo Changed files: ${{ steps.get_file_changes.outputs.files }}
     - name: Set up Python 3.9
-      uses: actions/setup-python@a26af69be951a213d495a4c3e4e4022e16d87065 # v5.6.0
+      uses: actions/setup-python@e797f83bcb11b83ae66e0230d6156d7c80228e7c # v6.0.0
       with:
         python-version: "3.9"
     - name: Install Python dependencies

.github/workflows/release-branch-cherrypick.yml

@@ -45,7 +45,7 @@ jobs:
     if: github.repository == 'tensorflow/tensorflow' # Don't do this in forks
     steps:
     - name: Checkout code
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       with:
         ref: ${{ github.event.inputs.release_branch }}
     - name: Get some helpful info for formatting

.github/workflows/scorecards-analysis.yml

@@ -41,12 +41,12 @@ jobs:
 
     steps:
       - name: "Checkout code"
-        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+        uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
         with:
           persist-credentials: false
 
       - name: "Run analysis"
-        uses: ossf/scorecard-action@f49aabe0b5af0936a0987cfb85d86b75731b0186 # v2.4.1
+        uses: ossf/scorecard-action@4eaacf0543bb3f2c246792bd56e8cdeffafb205a # v2.4.3
         with:
           results_file: results.sarif
           results_format: sarif
@@ -55,7 +55,7 @@ jobs:
       # Upload the results as artifacts (optional). Commenting out will disable uploads of run results in SARIF
       # format to the repository Actions tab.
       - name: "Upload artifact"
-        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4.6.2
+        uses: actions/upload-artifact@330a01c490aca151604b8cf639adc76d48f6c5d4 # v5.0.0
         with:
           name: SARIF file
           path: results.sarif
@@ -64,6 +64,6 @@ jobs:
       # Upload the results to GitHub's code scanning dashboard (optional).
       # Commenting out will disable upload of results to your repo's Code Scanning dashboard
       - name: "Upload to code-scanning"
-        uses: github/codeql-action/upload-sarif@28deaeda66b76a05916b6923827895f2b14ab387 # v3.28.16
+        uses: github/codeql-action/upload-sarif@0499de31b99561a6d14a36a5f662c2a54f91beee # v3.29.5
         with:
           sarif_file: results.sarif

.github/workflows/stale-issues.yml

@@ -31,7 +31,7 @@ jobs:
       pull-requests: write
     steps:
       - name: Awaiting response issues
-        uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639 # v9.1.0
+        uses: actions/stale@5f858e3efba33a5ca4407a664cc011ad407f2008 # v10.1.0
         with:
           #Comma separated list of labels that can be assigned to issues to exclude them from being marked as stale
           exempt-issue-labels: 'override-stale'
@@ -59,7 +59,7 @@ jobs:
           close-pr-message: "This PR was closed because it has been inactive for 14 days since being marked as stale. Please reopen if you'd like to work on this further."
           repo-token: ${{ secrets.GITHUB_TOKEN }}
       - name: Contribution issues
-        uses: actions/stale@5bef64f19d7facfb25b37b414482c7164d639639 # v9.1.0
+        uses: actions/stale@5f858e3efba33a5ca4407a664cc011ad407f2008 # v10.1.0
         with:
           #Comma separated list of labels that can be assigned to issues to exclude them from being marked as stale
           exempt-issue-labels: 'override-stale'

.github/workflows/update-rbe.yml

@@ -30,7 +30,7 @@ jobs:
     if: github.repository == 'tensorflow/tensorflow' # Don't do this in forks
     steps:
     - name: Checkout code
-      uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+      uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
     - name: Update the RBE Configs
       run: |
         function map() {

README.md

@@ -56,7 +56,7 @@ $ pip install tensorflow
 ```
 
 Other devices (DirectX and MacOS-metal) are supported using
-[Device plugins](https://www.tensorflow.org/install/gpu_plugins#available_devices).
+[Device Plugins](https://www.tensorflow.org/install/gpu_plugins#available_devices).
 
 A smaller CPU-only package is also available:
 
@@ -87,16 +87,16 @@ b'Hello, TensorFlow!'
 ```
 
 For more examples, see the
-[TensorFlow tutorials](https://www.tensorflow.org/tutorials/).
+[TensorFlow Tutorials](https://www.tensorflow.org/tutorials/).
 
 ## Contribution guidelines
 
 **If you want to contribute to TensorFlow, be sure to review the
-[contribution guidelines](CONTRIBUTING.md). This project adheres to TensorFlow's
-[code of conduct](CODE_OF_CONDUCT.md). By participating, you are expected to
+[Contribution Guidelines](CONTRIBUTING.md). This project adheres to TensorFlow's
+[Code of Conduct](CODE_OF_CONDUCT.md). By participating, you are expected to
 uphold this code.**
 
-**We use [GitHub issues](https://github.com/tensorflow/tensorflow/issues) for
+**We use [GitHub Issues](https://github.com/tensorflow/tensorflow/issues) for
 tracking requests and bugs, please see
 [TensorFlow Forum](https://discuss.tensorflow.org/) for general questions and
 discussion, and please direct specific questions to
@@ -110,9 +110,9 @@ open-source software development.
 Follow these steps to patch a specific version of TensorFlow, for example, to
 apply fixes to bugs or security vulnerabilities:
 
-*   Clone the TensorFlow repo and switch to the corresponding branch for your
-    desired TensorFlow version, for example, branch `r2.8` for version 2.8.
-*   Apply (that is, cherry-pick) the desired changes and resolve any code
+*   Clone the TensorFlow repository and switch to the appropriate branch for
+    your desired version—for example, `r2.8` for version 2.8.
+*   Apply the desired changes (i.e., cherry-pick them) and resolve any code
     conflicts.
 *   Run TensorFlow tests and ensure they pass.
 *   [Build](https://www.tensorflow.org/install/source) the TensorFlow pip
@@ -121,7 +121,7 @@ apply fixes to bugs or security vulnerabilities:
 ## Continuous build status
 
 You can find more community-supported platforms and configurations in the
-[TensorFlow SIG Build community builds table](https://github.com/tensorflow/build#community-supported-tensorflow-builds).
+[TensorFlow SIG Build Community Builds Table](https://github.com/tensorflow/build#community-supported-tensorflow-builds).
 
 ### Official Builds
 
@@ -159,8 +159,8 @@ Build Type                    | Status
 *   [TensorFlow Code Search](https://cs.opensource.google/tensorflow/tensorflow)
 
 Learn more about the
-[TensorFlow community](https://www.tensorflow.org/community) and how to
-[contribute](https://www.tensorflow.org/community/contribute).
+[TensorFlow Community](https://www.tensorflow.org/community) and how to
+[Contribute](https://www.tensorflow.org/community/contribute).
 
 ## Courses
 

RELEASE.md

@@ -1,4 +1,4 @@
-# Release 2.20.0
+# Release 2.21.0
 
 ## TensorFlow
 
@@ -9,9 +9,6 @@
 * <DOCUMENT BREAKING CHANGES HERE>
 * <THIS SECTION SHOULD CONTAIN API, ABI AND BEHAVIORAL BREAKING CHANGES>
 
-* The `tensorflow-io-gcs-filesystem` package is now optional, due its uncertain, and limited support.
-  To install it alongside `tensorflow`, run `pip install "tensorflow[gcs-filesystem]"`.
-
 ### Known Caveats
 
 * <CAVEATS REGARDING THE RELEASE (BUT NOT BREAKING CHANGES).>
@@ -22,44 +19,58 @@
 
 *   <IF RELEASE CONTAINS MULTIPLE FEATURES FROM SAME AREA, GROUP THEM TOGETHER>
 
+* `tf.lite`
+    * Adds int8 and int16x8 support for SQRT operator.
+    * Adds int16x8 support for EQUAL and NOT_EQUAL operators.
+    * Adds support for int2 type.
+    * Adds support for int2/int4 in tfl.cast .
+    * Adds support for SRQ int2 in tfl.fully_connected.
+    * Adds support for int4 in tfl.slice.
+
 ### Bug Fixes and Other Changes
 
 * <SIMILAR TO ABOVE SECTION, BUT FOR OTHER IMPORTANT CHANGES / BUG FIXES>
 * <IF A CHANGE CLOSES A GITHUB ISSUE, IT SHOULD BE DOCUMENTED HERE>
 * <NOTES SHOULD BE GROUPED PER AREA>
 
-## Keras
+* `tf.data`
+    * Adds `NoneTensorSpec` to the public API so that `None`s in `element_spec`
+      can be identified via `isinstance(..., tf.NoneTensorSpec)`.
 
-<INSERT SMALL BLURB ABOUT RELEASE FOCUS AREA AND POTENTIAL TOOLCHAIN CHANGES>
+## Thanks to our Contributors
 
-### Breaking Changes
+This release contains contributions from many people at Google, as well as:
 
-* <DOCUMENT BREAKING CHANGES HERE>
-* <THIS SECTION SHOULD CONTAIN API, ABI AND BEHAVIORAL BREAKING CHANGES>
+<INSERT>, <NAME>, <HERE>, <USING>, <GITHUB>, <HANDLE>
 
-### Known Caveats
+# Release 2.20.0
 
-* <CAVEATS REGARDING THE RELEASE (BUT NOT BREAKING CHANGES).>
-* <ADDING/BUMPING DEPENDENCIES SHOULD GO HERE>
-* <KNOWN LACK OF SUPPORT ON SOME PLATFORM, SHOULD GO HERE>
+## TensorFlow
 
-### Major Features and Improvements
+### Breaking Changes
 
-* `tf.data`
-    * Adds `autotune.min_parallelism` to `tf.data.Options` to enable faster
-      input pipeline warm up.
+* The `tensorflow-io-gcs-filesystem` package is now optional, due its uncertain, and limited support. To install it alongside `tensorflow`, run `pip install "tensorflow[gcs-filesystem]"`.
 
-### Bug Fixes and Other Changes
+### Major Features and Improvements
 
-* <SIMILAR TO ABOVE SECTION, BUT FOR OTHER IMPORTANT CHANGES / BUG FIXES>
-* <IF A CHANGE CLOSES A GITHUB ISSUE, IT SHOULD BE DOCUMENTED HERE>
-* <NOTES SHOULD BE GROUPED PER AREA>
+* `tf.data`
+    * Adds `autotune.min_parallelism` to `tf.data.Options` to enable faster input pipeline warm up.
+* `tf.lite`
+    * LiteRT announced a [new release](https://developers.googleblog.com/en/litert-maximum-performance-simplified/) at Google IO ‘25 that improves upon TFLite, particularly in terms of NPU and GPU hardware acceleration and performance for on-device ML and AI applications. The APIs are available in Kotlin and C++.
+    * Additionally, LiteRT code base will decouple from TensorFlow repository, and `tf.lite` will be removed in future TensorFlow Python package. More details to follow in future release notes.
+    * Migrate to LiteRT for continued updates; the new repo can be found at https://github.com/google-ai-edge/LiteRT.  For more information and NPU EAP signup, reach out to the team at: [g.co/ai/LiteRT-NPU-EAP](https://g.co/ai/LiteRT-NPU-EAP).
 
 ## Thanks to our Contributors
 
 This release contains contributions from many people at Google, as well as:
 
-<INSERT>, <NAME>, <HERE>, <USING>, <GITHUB>, <HANDLE>
+1ndig0, 372046933, abhinav, afzpatel, Akhil Goel, Alain Carlucci, Aleksei, Alen Huang, Alex, Amrinfathima-Mcw, Aravindh Balaji, Armand Picard, Aseem Athale, Ashiq Imran, Assoap, Chao, Chase Riley Roberts, Chenhao Jiang, chunhsue, chuntl, Chunyu Jin, Corentin Kerisit, Crefeda Rodrigues, dependabot[bot], Dragan Mladjenovic, Elen Kalda, Felix Thomasmathibalan, gabeweisz, Gauri Deshpande, Georg Stefan Schmid, Guozhong Zhuang, Harsha H S, Harshith_N, Hugo Mano, Ian Tayler Lessa, Jack Wolfard, James Ward, Jane Liu, Jaroslav Sevcik, JD, Jerry-Ge, Jian Li, Jinzhe Zeng, jiunkaiy, Johannes Reifferscheid, johnnkp, junweifu, Kanvi Khanna, Kasper Nielsen, Linzb-Xyz, Luke Hutton, Mahmoud Abuzaina, Mathew Odden, Michael Platings, misterBart, Mitchell Ludwig, Mmakevic-Amd, mraunak, NamanAgarwal0905, Namrata-Ibm, Neuropilot-Captain, nhatle, Nicholas Wilson, Nikhil Shinde, Olli Lupton, Patrick J. Lopresti, Pavel Emeliyanenko, Pearu Peterson, pemeliya, Peng Sun, Philipp Hack, Pratham-Mcw, RahulSudarMCW, RakshithGB, Rakshithgb-Fujitsu, RuslanSemchenko, Ruturaj Vaidya, Sachin Muradi, sandeepgupta12, SaoirseARM, Sergey Kozub, Sevin Fide Varoglu, Shanbin Ke, Shaogang Wang, Shraiysh Vaishay, Siddhartha Menon, spiao, Swatheesh Muralidharan, Tai Ly, Terry Sun, Thibaut Goetghebuer-Planchon, Thomas Dickerson, Tilak, Tj Xu, Trevor Morris, tyb0807, vfdev, Wei Wang, wokron, wondertx, Xuefei Jiang, Yaowei Zhou, Zentrik, Ziyun Cheng, Zoranjovanovic-Ns
+
+# Release 2.19.1
+
+### Bug Fixes and Other Changes
+
+* Fix save_model.save for Serving embedding and add SparseCore Reshard.
 
 # Release 2.19.0