Unity-Technologies · maryamziaa · Jul 10, 2025 · Jul 11, 2025 · Jul 11, 2025 · Jul 11, 2025
diff --git a/DevProject/Packages/packages-lock.json b/DevProject/Packages/packages-lock.json
@@ -90,7 +90,7 @@
       "depth": 0,
       "source": "local",
       "dependencies": {
-        "com.unity.ml-agents": "3.0.0",
+        "com.unity.ml-agents": "4.0.0",
         "com.unity.modules.physics": "1.0.0"
       }
     },

diff --git a/Project/Packages/packages-lock.json b/Project/Packages/packages-lock.json
@@ -116,7 +116,7 @@
       "depth": 0,
       "source": "local",
       "dependencies": {
-        "com.unity.ml-agents": "3.0.0",
+        "com.unity.ml-agents": "4.0.0",
         "com.unity.modules.physics": "1.0.0"
       }
     },

diff --git a/com.unity.ml-agents.extensions/package.json b/com.unity.ml-agents.extensions/package.json
@@ -5,7 +5,7 @@
   "unity": "6000.0",
   "description": "A source-only package for new features based on ML-Agents",
   "dependencies": {
-    "com.unity.ml-agents": "3.0.0",
+    "com.unity.ml-agents": "4.0.0",
     "com.unity.modules.physics": "1.0.0"
   }
 }
diff --git a/docs/Readme.md b/docs/Readme.md
@@ -44,7 +44,7 @@ See our [ML-Agents Overview](ML-Agents-Overview.md) page for detailed
 descriptions of all these features. Or go straight to our [web docs](https://unity-technologies.github.io/ml-agents/).
 ## Releases & Documentation
 
-**Our latest, stable release is `Release 22`. Click
+**Our latest, stable release is `Release 23`. Click
 [here](Getting-Started.md)
 to get started with the latest release of ML-Agents.**
 
@@ -65,10 +65,10 @@ under active development and may be unstable. A few helpful guidelines:
 - The `com.unity.ml-agents` package is [verified](https://docs.unity3d.com/2020.1/Documentation/Manual/pack-safe.html)
   for Unity 2020.1 and later. Verified packages releases are numbered 1.0.x.
 
-|        **Version**         | **Release Date** | **Source** | **Documentation** | **Download** | **Python Package** | **Unity Package** |
-|:--------------------------:|:------:|:-------------:|:-------:|:------------:|:------------:|:------------:|
-| **Release 22** | **October 5, 2024** | **[source](https://github.com/Unity-Technologies/ml-agents/tree/release_22)** | **[docs](https://unity-technologies.github.io/ml-agents/)** | **[download](https://github.com/Unity-Technologies/ml-agents/archive/release_22.zip)** | **[1.1.0](https://pypi.org/project/mlagents/1.1.0/)** | **[3.0.0](https://docs.unity3d.com/Packages/com.unity.ml-agents@3.0/manual/index.html)** |
-| **develop (unstable)** | -- | [source](https://github.com/Unity-Technologies/ml-agents/tree/develop) | [docs](https://unity-technologies.github.io/ml-agents/) | [download](https://github.com/Unity-Technologies/ml-agents/archive/develop.zip) | -- | -- |
+|      **Version**       | **Release Date**  |                                  **Source**                                   | **Documentation** |                                      **Download**                                      | **Python Package** |                                    **Unity Package**                                     |
+|:----------------------:|:-----------------:|:-----------------------------------------------------------------------------:|:-------:|:--------------------------------------------------------------------------------------:|:------------:|:----------------------------------------------------------------------------------------:|
+|     **Release 23**     | **July 11, 2025** | **[source](https://github.com/Unity-Technologies/ml-agents/tree/release_23)** | **[docs](https://unity-technologies.github.io/ml-agents/)** | **[download](https://github.com/Unity-Technologies/ml-agents/archive/release_23.zip)** | **[1.1.0](https://pypi.org/project/mlagents/1.1.0/)** | **[4.0.0](https://docs.unity3d.com/Packages/com.unity.ml-agents@4.0/manual/index.html)** |
+| **develop (unstable)** |        --         |    [source](https://github.com/Unity-Technologies/ml-agents/tree/develop)     | [docs](https://unity-technologies.github.io/ml-agents/) |    [download](https://github.com/Unity-Technologies/ml-agents/archive/develop.zip)     | -- |                                            --                                            |
 
 
 
@@ -122,47 +122,43 @@ We have also published a series of blog posts that are relevant for ML-Agents:
 - (May 5, 2021)
   [ML-Agents v2.0 release: Now supports training complex cooperative behaviors](https://blogs.unity3d.com/2021/05/05/ml-agents-v2-0-release-now-supports-training-complex-cooperative-behaviors/)
 - (December 28, 2020)
-  [Happy holidays from the Unity ML-Agents team!](https://blogs.unity3d.com/2020/12/28/happy-holidays-from-the-unity-ml-agents-team/)
+  Happy holidays from the Unity ML-Agents team!
 - (November 20, 2020)
   [How Eidos-Montréal created Grid Sensors to improve observations for training agents](https://blogs.unity3d.com/2020/11/20/how-eidos-montreal-created-grid-sensors-to-improve-observations-for-training-agents/)
 - (November 11, 2020)
   [2020 AI@Unity interns shoutout](https://blogs.unity3d.com/2020/11/11/2020-aiunity-interns-shoutout/)
 - (May 12, 2020)
-  [Announcing ML-Agents Unity Package v1.0!](https://blogs.unity3d.com/2020/05/12/announcing-ml-agents-unity-package-v1-0/)
+  Announcing ML-Agents Unity Package v1.0
 - (February 28, 2020)
   [Training intelligent adversaries using self-play with ML-Agents](https://blogs.unity3d.com/2020/02/28/training-intelligent-adversaries-using-self-play-with-ml-agents/)
 - (November 11, 2019)
   [Training your agents 7 times faster with ML-Agents](https://blogs.unity3d.com/2019/11/11/training-your-agents-7-times-faster-with-ml-agents/)
 - (October 21, 2019)
   [The AI@Unity interns help shape the world](https://blogs.unity3d.com/2019/10/21/the-aiunity-interns-help-shape-the-world/)
 - (April 15, 2019)
-  [Unity ML-Agents Toolkit v0.8: Faster training on real games](https://blogs.unity3d.com/2019/04/15/unity-ml-agents-toolkit-v0-8-faster-training-on-real-games/)
+  Unity ML-Agents Toolkit v0.8: Faster training on real games
 - (March 1, 2019)
-  [Unity ML-Agents Toolkit v0.7: A leap towards cross-platform inference](https://blogs.unity3d.com/2019/03/01/unity-ml-agents-toolkit-v0-7-a-leap-towards-cross-platform-inference/)
+  Unity ML-Agents Toolkit v0.7: A leap towards cross-platform inference
 - (December 17, 2018)
-  [ML-Agents Toolkit v0.6: Improved usability of Brains and Imitation Learning](https://blogs.unity3d.com/2018/12/17/ml-agents-toolkit-v0-6-improved-usability-of-brains-and-imitation-learning/)
+  ML-Agents Toolkit v0.6: Improved usability of Brains and Imitation Learning
 - (October 2, 2018)
-  [Puppo, The Corgi: Cuteness Overload with the Unity ML-Agents Toolkit](https://blogs.unity3d.com/2018/10/02/puppo-the-corgi-cuteness-overload-with-the-unity-ml-agents-toolkit/)
+  Puppo, The Corgi: Cuteness Overload with the Unity ML-Agents Toolkit
 - (September 11, 2018)
-  [ML-Agents Toolkit v0.5, new resources for AI researchers available now](https://blogs.unity3d.com/2018/09/11/ml-agents-toolkit-v0-5-new-resources-for-ai-researchers-available-now/)
+  ML-Agents Toolkit v0.5, new resources for AI researchers available now
 - (June 26, 2018)
   [Solving sparse-reward tasks with Curiosity](https://blogs.unity3d.com/2018/06/26/solving-sparse-reward-tasks-with-curiosity/)
 - (June 19, 2018)
-  [Unity ML-Agents Toolkit v0.4 and Udacity Deep Reinforcement Learning Nanodegree](https://blogs.unity3d.com/2018/06/19/unity-ml-agents-toolkit-v0-4-and-udacity-deep-reinforcement-learning-nanodegree/)
+  Unity ML-Agents Toolkit v0.4 and Udacity Deep Reinforcement Learning Nanodegree
 - (May 24, 2018)
-  [Imitation Learning in Unity: The Workflow](https://blogs.unity3d.com/2018/05/24/imitation-learning-in-unity-the-workflow/)
+  Imitation Learning in Unity: The Workflow
 - (March 15, 2018)
-  [ML-Agents Toolkit v0.3 Beta released: Imitation Learning, feedback-driven features, and more](https://blogs.unity3d.com/2018/03/15/ml-agents-v0-3-beta-released-imitation-learning-feedback-driven-features-and-more/)
+  ML-Agents Toolkit v0.3 Beta released: Imitation Learning, feedback-driven features, and more
 - (December 11, 2017)
-  [Using Machine Learning Agents in a real game: a beginner’s guide](https://blogs.unity3d.com/2017/12/11/using-machine-learning-agents-in-a-real-game-a-beginners-guide/)
+  Using Machine Learning Agents in a real game: a beginner’s guide
 - (December 8, 2017)
-  [Introducing ML-Agents Toolkit v0.2: Curriculum Learning, new environments, and more](https://blogs.unity3d.com/2017/12/08/introducing-ml-agents-v0-2-curriculum-learning-new-environments-and-more/)
+  Introducing ML-Agents Toolkit v0.2: Curriculum Learning, new environments, and more
 - (September 19, 2017)
   [Introducing: Unity Machine Learning Agents Toolkit](https://blogs.unity3d.com/2017/09/19/introducing-unity-machine-learning-agents/)
-- Overviewing reinforcement learning concepts
-  ([multi-armed bandit](https://blogs.unity3d.com/2017/06/26/unity-ai-themed-blog-entries/)
-  and
-  [Q-learning](https://blogs.unity3d.com/2017/08/22/unity-ai-reinforcement-learning-with-q-learning/))
 
 ### More from Unity
 

diff --git a/utils/make_readme_table.py b/utils/make_readme_table.py
@@ -142,6 +142,7 @@ def pypi_link(self):
     ReleaseInfo("release_20", "2.3.0", "0.30.0", "November 21, 2022"),
     ReleaseInfo("release_21", "3.0.0-exp.1", "1.0.0", "October 9, 2023"),
     ReleaseInfo("release_22", "3.0.0", "1.1.0", "October 5, 2024"),
+    ReleaseInfo("release_23", "4.0.0", "1.1.0", "July 11, 2025"),
     # Verified releases
     # ReleaseInfo("", "1.0.8", "0.16.1", "May 26, 2021", is_verified=True),
     # ReleaseInfo("", "1.0.7", "0.16.1", "March 8, 2021", is_verified=True),