diff --git a/CHANGES.txt b/CHANGES.txt
index d60d05ef..9bb96d1d 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,3 +1,6 @@
+10.4.0 (Aug 1, 2025)
+- Added a new optional argument to the client `getTreatment` methods to allow passing additional evaluation options, such as a map of properties to append to the generated impressions sent to Split backend. Read more in our docs.
+
 10.3.0 (Jun 17, 2025)
 - Added support for rule-based segments. These segments determine membership at runtime by evaluating their configured rules against the user attributes provided to the SDK.
 - Added support for feature flag prerequisites. This allows customers to define dependency conditions between flags, which are evaluated before any allowlists or targeting rules.
diff --git a/splitio/version.py b/splitio/version.py
index 8d2afd7b..9858bdcf 100644
--- a/splitio/version.py
+++ b/splitio/version.py
@@ -1 +1 @@
-__version__ = '10.3.0'
\ No newline at end of file
+__version__ = '10.4.0'
\ No newline at end of file