With the introduction of the Linux on System z "Development Stream" the older streams (which were based on a backlevel kernel) are no longer being enhanced.
To keep the existing information available and to prevent our Linux on System z developerWorks navigation-bar from overflowing, the old streams are kept available with the "old" navigation-bar.
To return to the "new" Linux on System z developerWorks-pages go to "What's new" or "Linux on System z" in the navigation bar.
