The Exchange Team released Cumulative Update 9 for Exchange Server 2013 (KB3049849). This update raises Exchange 2013 version number to 15.0.1104.5.
Cumulative Update reintroduces configuration of sent items for shared mailboxes, as was possible in Exchange 2010 but wasn’t available in Exchange 2013 yet. More information here.
Next to a security fix for MS15-064, this Cumulative Update contains the following fixes:
- KB2983216 Category setting on an item in Outlook jumps the selection to the top of the list in an Exchange Server 2013 environment
- KB2988660 Role assignment with custom write scope fails in an Exchange Server 2013 environment
- KB3003978 Email messages are displayed with incorrect format in Outlook in an Exchange Server 2013 environment
- KB3006849 GSSAPI-based Kerberos authentication protocol is not offered to IMAP clients in Exchange Server 2013
- KB3009631 Advanced Find against the Sent Items folder in Outlook returns no result in Exchange Server 2013
- KB3032153 Recurring events in Calendar over DST are not adjusted on all ActiveSync devices in all Exchange Server environments
- KB3040681 MapiExceptionTimeout error during a hierarchy synchronization process of multiple public folders in Exchange Server 2013
- KB3040683 System WLM overrides do not work when you do on-premises installations in Exchange Server 2013
- KB3049081 OwaDeepTestProbe probe fails intermittently on a server that installs the Mailbox server role in Exchange Server 2013
- KB3049771 Outlook Web App logon page takes longer time than expected to time out in an Exchange Server 2013 environment
- KB3050825 EdgeTransport.exe starts to crash when PriorityQueuingEnabled is set to “True” in Exchange Server 2013
- KB3050877 Emails that are sent as a secondary mailbox are not saved in the delegate’s Sent Items folder in Exchange Server 2013
- KB3055940 “Object reference not set to an instance” error when you install cumulative update in Exchange Server 2013
- KB3056045 “Cannot find Template User object” error when you find contacts that use a consumer domain in Exchange Server 2013
- KB3056133 Exchange Server 2013 Activation time of transport rule is not displayed in UTC time
- KB3056413 SMTP connection fails when you log on with a child domain account and use NTLM authentication in Exchange Server 2013
- KB3056817 Update adds the Let me select the message option in Outlook Web App in an Exchange Server 2013 environment
- KB3056822 Dynamics CRM 2013 stops synchronizing items from mailbox in an Exchange Server 2013 environment
- KB3060825 The MSExchangeDelivery service crashes when you receive an email message from a specific sender in Exchange Server 2013
- KB3064393 “Bad Command. 12″ error and IMAP CAPABILITY commands are not offered in an Exchange Server 2013 co-existence environment
- KB3068681 RPC encryption requirement is re-enabled for RPC Client Access Service after you upgrade server in Exchange Server 2013
- KB3069060 Recurring meetings are accepted when their time conflicts on the same room mailbox in Exchange Server 2013
- KB3069501 Duplicate folders are created after a mailbox move in Exchange Server 2013 Enterprise
- KB3071427 Outlook Web App still downloads web beacon contents when you forward email messages in Exchange Server 2013
- If the new Set-Mailbox parameters for Sent Items configuration, i.e. MessageCopyForSentAsEnabled and MessageCopyForSendOnBehalfEnabled, are not available after installing this CU, run Setup /PrepareAD /IAcceptExchangeServerLicenseTerms explicitly.
- When using Exchange hybrid deployments or Exchange Online Archiving (EOA), you are required to stay current.
- Previously released CU7 introduced changes to prevent restoration of pre-CU7 databases. Pre-CU7 users are advised to perform a full backup post-upgrade to CU7 or later.
- Previously released CU7 added support for hierarchies containing 250,000 modern public folders. Consult this article for co-existence scenarios.
This Cumulative Update does not include schema or Active Directory changes when compared to Cumulative Update 7. If you have deployed a version earlier than CU7, make sure you run PrepareSchema /PrepareAD. If you want to speed up the Cumulative Update installation process, you can temporarily disable certificate revocation checking as described here.
Note that Cumulative Updates can be installed directly, i.e. no need to install RTM prior to installing Cumulative Updates. Note that once installed, you can’t uninstall a Cumulative Update nor any of the installed Exchange server roles. The order of upgrading servers is irrelevant, unlike with previous generations of Exchange.
Finally, and I can’t emphasize this enough: For any Hotfix, Rollup, Service Pack or Cumulative Update, I’d recommend to thoroughly test this in a test and acceptance environment first, prior to implementing it in production. When you lack such facilities, hold out a week or two and monitor the comments on the release article or TechNet forum for any issues.