On February 28, 2006 IBM announced the latest planned upgrade of its stalwart mainframe operating system, z/OS. IBM has announced some interesting new functionality for the new version, V1.8. Planned are improvements in scale, availability, security, and resource optimization. Also, there is an increased focus on simplification to make z/OS easier to use.
The actual IBM announcement can be read here.
Further details can be found in this handy summary of z/OS futures planning put together by Jim Schesvold, a technical editor for IBM Systems Magazine.
IBM plans for z/OS V1.8 to be available in September 2006.