A notification stating the API layer that is used by the client. You should use your current layer and take notice of the layer used on the other side of a conversation when sending messages.
===17=== decryptedMessageActionNotifyLayer#f3048883 layer:int = DecryptedMessageAction;
|layer||int||Layer number, must be 17 or higher (this constructor was introduced in Layer 17).|
Below you will find information on schema changes. For more details on the use of layers, see Invoking API methods.