IBM have announced that DB2 for z/OS will be withdrawn from marketing from 6th July 2015. This means that DB2 10 along with DB2 10 VUE and the DB2 10 Utility Suite will no longer be available to order. This gives organisations just over 10 months to make the move to DB2 10.
We have a wealth of information on our website about migrating to DB2 10:
More information is available at the IBM Software Support Lifecycle page