diff --git a/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md b/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md
index 2da8017c..5e4e7791 100644
--- a/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md	
+++ b/app/MindWork AI Studio/wwwroot/changelog/v26.3.1.md	
@@ -5,6 +5,7 @@
 - Added the ability to format your user prompt in the chat using icons instead of typing Markdown directly.
 - Added the ability to load a system prompt from a file when creating or editing chat templates.
 - Added a start-page setting, so AI Studio can now open directly on your preferred page when the app starts. Configuration plugins can also provide and optionally lock this default for organizations.
+- Added pre-call validation to check if the selected model exists for the provider before making the request.
 - Added math rendering in chats for LaTeX display formulas, including block formats such as `$$ ... $$` and `\[ ... \]`.
 - Released the document analysis assistant after an intense testing phase.
 - Improved the profile selection for assistants and the chat. You can now explicitly choose between the app default profile, no profile, or a specific profile.