diff --git a/CHANGES.md b/CHANGES.md
index cec4505..9edf8e3 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -7,6 +7,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### [0.4.2] - 2024-07-08
+
+* Change "manual" allocation and property key to "manual_allocation".
+
 ### [0.4.1] - 2024-07-07
 
 * Add capability for property-based allocation  to not be normalized by production amount
diff --git a/multifunctional/__init__.py b/multifunctional/__init__.py
index ff8f9ae..ba1aadc 100644
--- a/multifunctional/__init__.py
+++ b/multifunctional/__init__.py
@@ -9,7 +9,7 @@
     "generic_allocation",
 )
 
-__version__ = "0.4.1"
+__version__ = "0.4.2"
 
 # Follows guidance from https://loguru.readthedocs.io/en/stable/resources/recipes.html#configuring-loguru-to-be-used-by-a-library-or-an-application
 # For development or to get more detail on what is really happening, re-enable with: