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diff --git a/pages/develop/guides/csharp/core/main-loop.md.txt b/pages/develop/guides/csharp/core/main-loop.md.txt
index 8d91e1b4d..a398a2091 100644
@@ -9,6 +9,10 @@ The EFL is event-driven. This means that execution usually takes place within an
EFL manages timers and user interface events amongst many other things and even provides a simple mechanism for applications to perform conventional data polling if required.
+| | WARNING | |
+| --- | ------- | --- |
+| ![NOTE](/_media/note-important.png) | **The C# bindings are currently in BETA state**<br>They should only be used for experimenting and **NOT** for any product development.<br>The source code for the tutorials is subject to change in the future. | ![NOTE](/_media/note-important.png) |
## Prerequisites ##
* Read the [Hello World in C#](/develop/tutorials/csharp/hello-world.md) tutorial to learn how to instantiate EFL objects.