The CU2 for Exchange 2013 RTM was released today. It can be downloaded here:
Installation instructions and a list of changes can be found on the Exchange Team Blog:
A schema update is also necessary. As usual, the CU2 is the complete Exchange package, so almost 1.4 GB must be downloaded.
Das muss ich morgen gleich mal installieren.
mal sehen wie das bei den einzeln Rollen so abläuft.