diff --git a/README.md b/README.md
index c0f467526..f841b040a 100644
--- a/README.md
+++ b/README.md
@@ -45,10 +45,12 @@ For information on use cases and background material on causal inference and het
 
 # News
 
-**June 25, 2021:** Release v0.12.0b3, see release notes [here](https://github.com/Microsoft/EconML/releases/tag/v0.12.0b3)
+**July 9, 2021:** Release v0.12.0b4, see release notes [here](https://github.com/Microsoft/EconML/releases/tag/v0.12.0b4)
 
 <details><summary>Previous releases</summary>
 
+**June 25, 2021:** Release v0.12.0b3, see release notes [here](https://github.com/Microsoft/EconML/releases/tag/v0.12.0b3)
+
 **June 18, 2021:** Release v0.12.0b2, see release notes [here](https://github.com/Microsoft/EconML/releases/tag/v0.12.0b2)
 
 **June 7, 2021:** Release v0.12.0b1, see release notes [here](https://github.com/Microsoft/EconML/releases/tag/v0.12.0b1)
diff --git a/econml/__init__.py b/econml/__init__.py
index d66aa6d70..67647f215 100644
--- a/econml/__init__.py
+++ b/econml/__init__.py
@@ -26,4 +26,4 @@
            'dowhy',
            '__version__']
 
-__version__ = '0.12.0b3'
+__version__ = '0.12.0b4'