Tag Archives: CU9

Exchange 2016 CU9 and Exchange 2013 CU20 released

March 21, 2018 jaapwesselius Leave a comment

On March 20, 2018 Microsoft has released two new quarterly updates:

Exchange 2016 Cumulative Update 9 (CU9)
Exchange 2013 Cumulative Update 20 (CU20)

There aren’t too many new features in these CUs. The most important ‘feature’ is that TLS 1.2 is now fully supported (most likely you already have TLS 1.2 only on your load balancer). This is extremely supported since Microsoft will support TLS 1.2 ONLY in Office 365 in the last quarter of this year (see the An Update on Office 365 Requiring TLS 1.2 Microsoft blog as well).

Support for .NET Framework 4.7.1, or the ongoing story about the .NET Framework. The .NET Framework 4.7.1 is fully supported by Exchange 2016 CU9 and Exchange 2013 CU20. Why is this important? For the upcoming CUs in three months (somewhere in June 2018) the .NET Framework 4.7.1 is mandatory, so you need these to be installed in order to install these upcoming CUs.

Please note that .NET Framework 4.7 is NOT supported!

If you are currently running an older CU of Exchange, for example Exchange 2013 CU12, you have to make an intermediate upgrade to Exchange 2013 CU15. Then upgrade to .NET Framework 4.6.2 and then upgrade to Exchange 2013 CU20. If you are running Exchange 2016 CU3 or CU4, you can upgrade to .NET Framework 4.6.2 and then upgrade to Exchange 2016 CU9.

Schema changes

If you are coming from a recent Exchange 2013 CU, there are no schema changes since the schema version (rangeUpper = 15312) hasn’t changed since Exchange 2013 CU7. However, since there can be changes in (for example) RBAC, it’s always a good practice to run the Setup.exe /PrepareAD command. For Exchange 2016, the schema version (rangeUpper = 15332) hasn’t changed since Exchange 2016 CU7.

As always, check the new CUs in your lab environment before installing into your production environment. If you are running Exchange 2013 or Exchange 2016 in a DAG, use the PowerShell commands as explained in my earlier EXCHANGE 2013 CU17 AND EXCHANGE 2016 CU6 blog.

More information and downloads

Exchange 2016 CU9 download: https://www.microsoft.com/en-us/download/details.aspx?id=56718
Exchange 2016 CU9 KB article: https://support.microsoft.com/en-us/help/4055222/cumulative-update-9-for-exchange-server-2016
Exchange 2016 CU9 UM Language Pack: https://www.microsoft.com/en-us/download/details.aspx?id=56715
Exchange 2013 CU20 download: https://www.microsoft.com/en-us/download/details.aspx?id=56717
Exchange 2013 CU20 KB article: https://support.microsoft.com/en-us/help/4055221/cumulative-update-20-for-exchange-server-2013
Exchange 2013 CU20 UM Language Pack: https://www.microsoft.com/en-us/download/details.aspx?id=56716
Exchange 2013 CU20 Released – https://blogs.technet.microsoft.com/rmilne/2018/03/20/exchange-2013-cu20-released/
Released: March 2018 Quarterly Exchange Updates – https://blogs.technet.microsoft.com/exchange/2018/03/20/released-march-2018-quarterly-exchange-updates/
Upgrade Paths for CU’s & .NET – https://eightwone.com/2017/12/21/upgrade-paths-for-cus-net/

Exchange

MessageCopyForSentAsEnabled and MessageCopyForSendOnBehalfEnabled not available in CU9

July 30, 2015 jaapwesselius 4 Comments

You have Exchange 2013 CU9 running in your environment and you want to configure the option to store sent messages in the shared Mailbox instead of the user’s mailbox as described in my blogpost Exchange 2013, Shared Mailbox and Sent Items.

But when you open the Exchange Management Shell and try to change the Mailbox settings using the Set-Mailbox cmdlet, the options -MessageCopyForSentAsEnabled and -MessageCopyForSendOnBehalfEnabled are not available.

To solve this you can run the setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms command from the CU9 installation media.

But why wasn’t this run during installation of Exchange 2013 CU9 in the first place?

You might expect that when running the setup application (either using the GUI or using setup.exe /mode:upgrade) that the upgrade of the Active Directory Configuration partition automatically takes place.

However, this is not always the case. It turns out that when there are no Schema changes during the upgrade process, which is the case when upgrading from Exchange 2013 CU7 or CU8 to Exchange 2013 CU9, the preparation of the Configuration Partition in Active Directory is automatically skipped by the setup application.

This is a bit annoying and nothing will break (except the fact you’re missing some new functionality) and can be solved by running the Setup.exe /PrepareAD later on.

Exchange

Install Exchange 2013 Cumulative Update 9

June 17, 2015 jaapwesselius 33 Comments

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.

Continue reading Install Exchange 2013 Cumulative Update 9 →