Update to use TF version `2.6.0`.

PiperOrigin-RevId: 394327712

README.md

@@ -80,49 +80,6 @@ Please be sure to review the
 [contribution guidelines](CONTRIBUTING.md#code-style-guidelines-and-best-practices)
 for guidelines on how to contribute.
 
-## Compatibility
-
-### TensorFlow
-
-The following table describes the compatibility between the TensorFlow Federated
-and TensorFlow Python packages, meaning that a version of the TensorFlow
-Federated package was tested against a version of the TensorFlow before it was
-released. It is possible that a newer version of the TensorFlow Federated
-package will not work with an older version of the TensorFlow package and vice
-versa.
-
-TensorFlow Federated                                                  | TensorFlow
---------------------------------------------------------------------- | ----------
-[0.19.0](https://github.com/tensorflow/federated/tree/v0.19.0)        | [tensorflow 2.5.0](https://pypi.org/project/tensorflow/2.5.0/)
-[0.18.0](https://github.com/tensorflow/federated/tree/v0.18.0)        | [tensorflow 2.4.0](https://pypi.org/project/tensorflow/2.4.0/)
-[0.17.0](https://github.com/tensorflow/federated/tree/v0.17.0)        | [tensorflow 2.3.0](https://pypi.org/project/tensorflow/2.3.0/)
-[0.16.1](https://github.com/tensorflow/federated/tree/v0.16.1)        | [tensorflow 2.2.0](https://pypi.org/project/tensorflow/2.2.0/)
-[0.16.0](https://github.com/tensorflow/federated/tree/v0.16.0)        | [tensorflow 2.2.0](https://pypi.org/project/tensorflow/2.2.0/)
-[0.15.0](https://github.com/tensorflow/federated/tree/v0.15.0)        | [tensorflow 2.2.0](https://pypi.org/project/tensorflow/2.2.0/)
-[0.14.0](https://github.com/tensorflow/federated/tree/v0.14.0)        | [tensorflow 2.2.0](https://pypi.org/project/tensorflow/2.2.0/)
-[0.13.1](https://github.com/tensorflow/federated/tree/v0.13.1)        | [tensorflow 2.1.0](https://pypi.org/project/tensorflow/2.1.0/)
-[0.13.0](https://github.com/tensorflow/federated/tree/v0.13.0)        | [tensorflow 2.1.0](https://pypi.org/project/tensorflow/2.1.0/)
-[0.12.0](https://github.com/tensorflow/federated/tree/v0.12.0)        | [tensorflow 2.1.0](https://pypi.org/project/tensorflow/2.1.0/)
-[0.11.0](https://github.com/tensorflow/federated/tree/v0.11.0)        | [tensorflow 2.0.0](https://pypi.org/project/tensorflow/2.0.0/)
-[0.10.1](https://github.com/tensorflow/federated/tree/v0.10.1)        | [tensorflow 2.0.0](https://pypi.org/project/tensorflow/2.0.0/)
-[0.10.0](https://github.com/tensorflow/federated/tree/v0.10.0)        | [tensorflow 2.0.0](https://pypi.org/project/tensorflow/2.0.0/)
-[0.9.0](https://github.com/tensorflow/federated/tree/v0.9.0)          | [tf-nightly 2.1.0.dev20191005](https://pypi.org/project/tf-nightly/2.1.0.dev20191005/)
-~~[0.8.0](https://github.com/tensorflow/federated/tree/v0.8.0)~~ <sup>[1](#footnote1)</sup> | [tf-nightly 1.15.0.dev20190805](https://pypi.org/project/tf-nightly/1.15.0.dev20190805/)
-[0.7.0](https://github.com/tensorflow/federated/tree/v0.7.0)          | [tf-nightly 1.15.0.dev20190711](https://pypi.org/project/tf-nightly/1.15.0.dev20190711/)
-[0.6.0](https://github.com/tensorflow/federated/tree/v0.6.0)          | [tf-nightly 1.15.0.dev20190626](https://pypi.org/project/tf-nightly/1.15.0.dev20190626/)
-[0.5.0](https://github.com/tensorflow/federated/tree/v0.5.0)          | [tf-nightly 1.14.1.dev20190528](https://pypi.org/project/tf-nightly/1.14.1.dev20190528/)
-[0.4.0](https://github.com/tensorflow/federated/tree/v0.4.0)          | [tensorflow 1.13.1](https://pypi.org/project/tensorflow/1.13.1)
-[0.3.0](https://github.com/tensorflow/federated/tree/v0.3.0)          | [tensorflow 1.13.1](https://pypi.org/project/tensorflow/1.13.1)
-[0.2.0](https://github.com/tensorflow/federated/tree/v0.2.0)          | [tensorflow 1.13.1](https://pypi.org/project/tensorflow/1.13.1)
-[0.1.0](https://github.com/tensorflow/federated/tree/v0.1.0)          | [tensorflow 1.13.0rc2](https://pypi.org/project/tensorflow/1.13.0rc0/)
-
-### Python
-
-See the `Programming Language` classifiers on the PyPI
-[tensorflow-federated](https://pypi.org/project/tensorflow-federated/) project
-for information about the compatibility between TensorFlow Federated and Python
-versions.
-
 ## Issues
 
 Use [GitHub issues](https://github.com/tensorflow/federated/issues) for tracking
@@ -133,8 +90,3 @@ requests and bugs.
 Please direct questions to [Stack Overflow](https://stackoverflow.com) using the
 [tensorflow-federated](https://stackoverflow.com/questions/tagged/tensorflow-federated)
 tag.
-
-<sup id="footnote1">1</sup> TensorFlow Federated
-    [0.8.0](https://github.com/tensorflow/federated/tree/v0.8.0) fails to pip
-    install `pip install tensorflow-federated==0.8.0` because it requires
-    `tf-nightly==1.15.0.dev20190805`, which is no longer available.

tensorflow_federated/tools/python_package/setup.py

@@ -70,7 +70,7 @@ REQUIRED_PACKAGES = [
     'semantic-version~=2.8.5',
     'tensorflow-model-optimization~=0.5.0',
     'tensorflow-privacy~=0.7.2',
-    'tensorflow~=2.5.0',
+    'tensorflow~=2.6.0',
     'tqdm~=4.28.1',
 ]