added release notes for v4.0.3 (#72)

* added release notes for v4.0.3

* Update 403_openbanking_relnotes.md

update format to be consistent with previous Release Notes

---------

Co-authored-by: Anuj Kumar <[email protected]>
Co-authored-by: lbadenhop <[email protected]>

Author: 3 people

content/en/docs/Release-Notes/403_openbanking_relnotes.md

@@ -0,0 +1,23 @@
+---
+title: "Open Banking 4.0.3 Release Notes"
+linkTitle: "Open Banking 4.0.3"
+weight: 12
+date: 2025-07-31
+---
+
+This update contains several new features and enhancements.
+
+## Consent management update
+
+* The consent admin dashboard now displays the **terms and conditions version** information.  
+  This provides administrators with improved visibility into the terms and conditions version the customer authorized.
+
+## API update
+
+* A new **FDX Fraud API** endpoint is available for consumers to notify data providers of suspected fraud incidents.  
+  This supports fraud prevention and compliance requirements in FDX implementations.
+
+## Authorization Server update
+
+* The authorization server now supports **external custom login page redirection**.  
+  This allows you to set up the authorization server to redirect customers to data provider's custom login page. This feature is particularly useful when there is no OIDC/SAML compatible Identity Provider available to connect with.