diff --git a/NEWS-pre b/NEWS-pre
index ada9db46..03da2090 100644
--- a/NEWS-pre
+++ b/NEWS-pre
@@ -12,7 +12,9 @@
     in Java. In order to do so, a .java file has to be created in a directory
     where Ruby files reside (ex. `app'). The basename of the .java file should
     be the name of the class to extend, and its content will be copied inside
-    the class definition. (ex. `public int foo() { return 42; }').
+    the class definition. (ex. `public int foo() { return 42; }'). The basename
+    can also use the underscore-based notation, and the build system will then
+    translate it to the actual class name (ex. `my_service.rb' -> `MyService').
   * Added Array#{*, count, pop, shift, reverse, reverse!}.
   * Fixed Array#{first, last} in order to take an argument.
   * Fixed a bug in the runtime when calling ambiguous Java methods where a