Update documents for 0.19.0 release.

PiperOrigin-RevId: 591006295
Change-Id: I185060a39cef048af1d13be8bee4543a0abb407f

README.md

@@ -176,6 +176,7 @@ but can have issues due to upstream libraries being in flux. The table below
 lists the version(s) of TensorFlow that align with each TF Agents' release.
 Release versions of interest:
 
+  * 0.19.0 supports tensorflow-2.15.0.
   * 0.18.0 dropped Python 3.8 support.
   * 0.16.0 is the first version to support Python 3.11.
   * 0.15.0 is the last release compatible with Python 3.7.
@@ -186,6 +187,7 @@ Release versions of interest:
 Release | Branch / Tag                                               | TensorFlow Version | dm-reverb Version
 ------- | ---------------------------------------------------------- | ------------------ | -----------
 Nightly | [master](https://github.com/tensorflow/agents)             | tf-nightly         | dm-reverb-nightly
+0.19.0  | [v0.19.0](https://github.com/tensorflow/agents/tree/v0.19.0) | 2.15.0           | 0.14.0
 0.18.0  | [v0.18.0](https://github.com/tensorflow/agents/tree/v0.18.0) | 2.14.0           | 0.13.0
 0.17.0  | [v0.17.0](https://github.com/tensorflow/agents/tree/v0.17.0) | 2.13.0           | 0.12.0
 0.16.0  | [v0.16.0](https://github.com/tensorflow/agents/tree/v0.16.0) | 2.12.0           | 0.11.0

docs/overview.md

@@ -32,7 +32,7 @@ $ pip install --user tf-agents[reverb]
 # Use this tag get the matching examples and colabs.
 $ git clone https://github.com/tensorflow/agents.git
 $ cd agents
-$ git checkout v0.18.0
+$ git checkout v0.19.0
 ```
 
 If you want to install TF-Agents with versions of Tensorflow or
@@ -98,6 +98,7 @@ but can have issues due to upstream libraries being in flux. The table below
 lists the version(s) of TensorFlow that align with each TF Agents' release.
 Release versions of interest:
 
+  * 0.19.0 supports tensorflow-2.15.0.
   * 0.18.0 dropped Python 3.8 support.
   * 0.16.0 is the first version to support Python 3.11.
   * 0.15.0 is the last release compatible with Python 3.7.
@@ -108,6 +109,7 @@ Release versions of interest:
 Release | Branch / Tag                                               | TensorFlow Version | dm-reverb Version
 ------- | ---------------------------------------------------------- | ------------------ | -----------
 Nightly | [master](https://github.com/tensorflow/agents)             | tf-nightly         | dm-reverb-nightly
+0.19.0  | [v0.19.0](https://github.com/tensorflow/agents/tree/v0.19.0) | 2.15.0           | 0.14.0
 0.18.0  | [v0.18.0](https://github.com/tensorflow/agents/tree/v0.18.0) | 2.14.0           | 0.13.0
 0.17.0  | [v0.17.0](https://github.com/tensorflow/agents/tree/v0.17.0) | 2.13.0           | 0.12.0
 0.16.0  | [v0.16.0](https://github.com/tensorflow/agents/tree/v0.16.0) | 2.12.0           | 0.11.0

tf_agents/version.py

@@ -17,7 +17,7 @@
 
 # We follow Semantic Versioning (https://semver.org/)
 _MAJOR_VERSION = '0'
-_MINOR_VERSION = '19'
+_MINOR_VERSION = '20'
 _PATCH_VERSION = '0'
 
 # When building releases, we can update this value on the release branch to
@@ -26,7 +26,7 @@
 # release branch, the current version is by default assumed to be a
 # 'development' version, labeled 'dev'.
 _DEV_SUFFIX = 'dev'
-_REL_SUFFIX = 'rc0'
+_REL_SUFFIX = ''
 
 # Example, '0.10.0rc0'
 __version__ = '.'.join([