diff --git a/migrations/44-50/new-features.md b/migrations/44-50/new-features.md
index bb92a20c..e77e57d4 100644
--- a/migrations/44-50/new-features.md
+++ b/migrations/44-50/new-features.md
@@ -11,3 +11,10 @@ Any changes in best practice.
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 :::
+
+#### Model states are a new class
+
+File: libraries/src/MVC/Model/State.php
+Description: The state of a model is not anymore a `CMSObject`. Instead of, it is a new class libraries/src/MVC/Model/State.php which inherits from a `Registry`. Like that are all functions available a state registry should have. The class itself is deprecated as only features from the registry should be used. In version 7.0 we are going to remove the state class all together and use then only the registry class.
+
+For backwards compatibility, the state class supports direct property access though magic methods which will throw a deprecated warning when used.