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Ok, can I migrate from CU 3 to CU 7 direct?
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Ok, can I migrate from CU 3 to CU 7 direct?

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CU stands for cumulative update; you can go from 3 to 7<br />
no need to go to 4, 5, or 6 first
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CU stands for cumulative update; you can go from 3 to 7
no need to go to 4, 5, or 6 first

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<div class="content wysiwyg-content">
Hi All,<br />
<br />
&nbsp; I have two exchange 2013 CU3 in DAG, I use Hardware load balancer &nbsp;KEMP, I need to do the below<br />
<br />
Upgrade both servers to CU6 without downtime &nbsp;or with a very less mail disturbance .<br />
<br />
can I migrate direct from CU 3 to CU6 or I need CU6?<br />
<br />
Thanks
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</div>


Hi All,

  I have two exchange 2013 CU3 in DAG, I use Hardware load balancer  KEMP, I need to do the below

Upgrade both servers to CU6 without downtime  or with a very less mail disturbance .

can I migrate direct from CU 3 to CU6 or I need CU6?

Thanks

Update Two Exchange 2013 CU3 in DAG to CU6

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

Within Internet message handling services (MHS), a message transfer agent or mail transfer agent (MTA) or mail relay is software that transfers electronic mail messages from one computer to another using a client–server application architecture. A MTA implements both the client (sending) and server (receiving) portions of the Simple Mail Transfer Protocol (SMTP). The terms mail server, mail exchanger, and MX host may also refer to a computer performing the MTA function. The Domain Name System (DNS) associates a mail server to a domain with mail exchanger (MX) resource records containing the domain name of a host providing MTA services.

Email Servers

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.