4.0 release notes updated with API incompatibility notice about GEO.
4.0 release notes updated with API incompatibility notice about GEO.

JRHZRD/swapdb,JRHZRD/swapdb,JRHZRD/swapdb,JRHZRD/swapdb,JRHZRD/swapdb,JRHZRD/swapdb,JRHZRD/swapdb,JRHZRD/swapdb