Nope, it's pretty easy... it's just that there's not much to put into it for service releases (such as the 4.0 series). Seeing "Fixed NullPointerException in javax.swing.RepaintManager", "Fixed ConcurrentModificationException in ...", "Ignored IllegalStateException in...", etc... isn't all too exciting. There'll be changes once we start work on 4.1 / 4.2.