Voice of the Whirlwind — Walter Jon Williams

Steward is a clone. A beta.. His memories are fifteen years old, because his alpha never did have a brain-scan update. And in those fifteen. years, the entire world has changed: The Orbital Policorp which held his allegiance has collapsed; dozens of his friends died in an off-planet War which he survived; an alien race has established relations with humanity; both his first and second wives have divorced him.

And someone has murdered him.