You can maintain this mode for an indefinite period of time, or you can immediately complete the upgrade to Exchange 2013 by moving all resources from Exchange 2010 to Exchange 2013, and then decommissioning the Exchange 2010 servers. You have a coexistence scenario if the following conditions are true:
Definition of serene. 1a : clear and free of storms or unpleasant change serene skiesb : shining bright and steady the moon, serene in glory â Alexander Pope. 2 : august âused as part of a title His Serene Highness. 3 : marked by or suggestive of utter calm and unruffled repose or quietude a serene smile.
A serene moment. A serene moment. The definition of serene is untroubled, or is the title for a high-ranking member of royalty. 1  An example of something serene is a calm day spent floating in a boat.2  The sleeping cat is an example of something serene. 3  Referring to Queen Elizabeth as Her Serene Highness is an example of serene.he definition of serene is untroubled, or is the title for a high-ranking member of royalty. 1  An example of something serene is a calm day spent floating in a boat. 2  The sleeping cat is an example of something serene.