CRM and Exchange integration (Update Rollup 13 for Exchange Server 2010 Service Pack 3)

Hi,

Question from a CRM newbie……………….we are running CRM 2013 SP1 UR3 and Exchange 2010 SP3 UR 10. I have told the CRM consultant that I will update Exchange with the latest UR 13. The answer from the CRM consultant is that he can not guarantee that the CRM/Exchange integration will not function without problems after UR13.

My question is: Is Exchange 2010 SP3 UR13 not supported in CRM 2013 SP1 UR3 ?