Platform HTTP docs updates

components/camel-platform-http/src/main/docs/platform-http-component.adoc

@@ -84,4 +84,13 @@ Platform HTTP component can act as a reverse proxy. In that case, some headers a
 
 At this moment, this feature is only supported for Quarkus implemented in `camel-platform-http-vertx` component.
 
+=== File Attachments handling
+
+Since Apache Camel 4.10, multipart file uploads are easier and harmonized across all runtimes. When a single file is uploaded, the Apache Camel framework provides the following:
+
+* The Apache Camel message contains:
+** The uploaded file in the message body
+** The file name in the "CamelFileName" message header
+** The file's content type in the "Content-Type" message header
+
 include::spring-boot:partial$starter.adoc[]