Merge pull request #7551 from Calinou/csharp-export-limitations

Document C# currently not being supported on Android, iOS and Web

tutorials/export/exporting_for_android.rst

@@ -13,6 +13,11 @@ Exporting for Android
 Exporting for Android has fewer requirements than compiling Godot for Android.
 The following steps detail what is needed to set up the Android SDK and the engine.
 
+.. attention::
+
+    Projects written in C# using Godot 4 currently cannot be exported to Android.
+    To use C# on Android, use Godot 3 instead.
+
 Install OpenJDK 11
 ------------------
 

tutorials/export/exporting_for_ios.rst

@@ -13,6 +13,11 @@ These are the steps to load a Godot project in Xcode. This allows you to
 build and deploy to an iOS device, build a release for the App Store, and
 do everything else you can normally do with Xcode.
 
+.. attention::
+
+    Projects written in C# using Godot 4 currently cannot be exported to iOS.
+    To use C# on iOS, use Godot 3 instead.
+
 Requirements
 ------------
 

tutorials/export/exporting_for_web.rst

@@ -15,6 +15,11 @@ This requires support for `WebAssembly
 `SharedArrayBuffer <https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/SharedArrayBuffer>`_
 in the user's browser.
 
+.. attention::
+
+    Projects written in C# using Godot 4 currently cannot be exported to the
+    web. To use C# on web platforms, use Godot 3 instead.
+
 .. important:: Use the browser-integrated developer console, usually opened
                with :kbd:`F12`, to view **debug information** like JavaScript,
                engine, and WebGL errors.