CDO>  CHANGE CONTEXT DEVELOPMENT_CONTEXT
  cont>   DESCRIPTION IS "ARCHIVING THIS CONTEXT"
  cont>   "VERSION 5.0 DEVELOPMENT COMPLETED"
  cont>   NOTOP
  cont>   DEFAULT_ATTACHMENT IS SPECIFIC_VERSION.

      In this example, the CHANGE CONTEXT command modifies the
      DEFAULT_ATTACHMENT clause, the description text, and the TOP
      clause in the DEVELOPMENT_CONTEXT context.