Tag Archives: Maintenance Mode

Exchange

Install Exchange 2013 Cumulative Update 9

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Microsoft has released Exchange 2013 CU9, three months after the release of CU8. Microsoft has made a solid Cumulative Update this time (just like CU8 by the way) and during testing not much issues were found.

There aren’t any new features in this Cumulative Update, and personally I don’t expect any new features anymore in future Cumulative Updates either. All development efforts at Microsoft are currently targeted towards Exchange Server 2016.

The official announcement of CU9 can be found on The Exchange Team Blog, CU9 itself can be downloaded from the Microsoft Download Center, just as the accompanying CU9 UM Language Packs.

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Exchange

Install Exchange 2013 Cumulative Update 8

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On March 17 Microsoft released the 8th Cumulative Update for Exchange Server 2013, 98 days after the release of CU7 which is nicely in line with the quarterly release cadence of Cumulative Updates. This Cumulative Update is called CU8, not a word about Service Pack 2, so SP1 still continues to be the officially supported Service Pack.

There are some new features in CU8 that are worth noticing.

  • With CU8 there are improvements for mobile clients in a Hybrid Configuration. When a Mailbox is moved the Outlook client will automatically detect and reconfigure accordingly. This was not the case with Mobile clients. This behavior has changed in CU8. When a mobile client connects the local Exchange server and the Mailbox is moved to Exchange Online an additional check for the TargetOWAUrl on the Organization Relationship object is performed. This will return an HTTP/451 redirect to the mobile client which in turn will be redirected to this new URL. This feature will be available to all EAS compatible devices that can handle the HTTP/451 redirect option. Unfortunately this feature is only available for onboarding customers (i.e. to Office 365) and not for offboarding (from Office 365) customers.
  • There an improved migration for Public Folders migration, now supporting batch migrations. This is faster (supports multiple jobs), more reliable and provides an easier migration management.
  • CU8 supports viewing calendar and contact types of modern Public Folders in OWA

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Exchange

Upgrade to Exchange Server 2013 RTM CU2

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Now that Microsoft has released Exchange Server 2013 RTM CU2 it’s time to have a closer look at installing this Cumulative Update.

In contrast with the previous Update Rollups as we’ve seen in Exchange 2007 and Exchange 2010, which were only a set of hotfixes bundled together, a Cumulative Update is a full version of the product. So, it is now possible to install an Exchange 2013 server from scratch using the CU2 download.

Another advantage of a CU is that Microsoft can bundle new functionality into the product, even Schema changes are possible (as a matter of fact CU2 does include a number of Schema changes) but also the Configuration container in Active Directory can be changed.

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