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We have inherited a multi tenet exchange environment on windows server 2012 that is currently not running any CU on it. <br />
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I would like to know if there is any expert out there that knows if there is a proven update path to CU10 straight from Release or do we have to install CU1 through CU10 to get it there?
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We have inherited a multi tenet exchange environment on windows server 2012 that is currently not running any CU on it. 

I would like to know if there is any expert out there that knows if there is a proven update path to CU10 straight from Release or do we have to install CU1 through CU10 to get it there?

Exchange 2013 Upgrade to CU10

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.