Today, Microsoft released Cumulative Update 5 for Exchange 2013 and Update Rollup 6 for Exchange 2010.
Exchange 2013 Cumulative Update 5
Next to a ton of bug fixes, Microsoft made changes to a few components including:
- Offline Address Book generation
- Hybrid Configuration Wizard
Except for the above changes, it looks like CU5 will mostly consist of fixes. By the looks of it and as Tony Redmond already pointed out CU5 promises to be a stable release. Whether it will stay that way is something only time will tell…
Installing Cumulative Update 5
Installing CU5 is no different from older versions. You can also immediately upgrade from any previous version of Exchange 2013 to CU5. There is no requirement to install SP1 (a.k.a. CU4) first.
After installation, Microsoft warns there might be a Managed Availability probe which went into overdrive and repeatedly restarts a newly added service called the Microsoft Exchange Shared Cache Service. However, this service isn’t used in CU5 (planned for the future?) and as such there is no impact at all.
However, if you are worried about your application log filling up with events from Managed Availability, you can disable the probe. More information can be found here.
This update also includes Active Directory changes, so you will be required to extend the AD schema. Given that you’re used to it by now, this shouldn’t present much of a problem. For more information on how to deploy a Cumulative Update, I suggest you have a look at the following article by ExchangeServerPro:
Exchange 2010 Update Rollup 6
This update seems mainly to be a routine update to Exchange 2010. As expected, there are no major revelations except for a bunch of updates and fixes:
2960652 Organizer name and meeting status field can be changed by EAS clients in an Exchange Server 2010 environment
2957762 “A folder with same name already exists” error when you rename an Outlook folder in an Exchange Server 2010 environment
2952799 Event ID 2084 occurs and Exchange server loses connection to the domain controllers in an Exchange Server 2010 environment
2934091 Event ID 1000 and 7031 when users cannot connect to mailboxes in an Exchange Server 2010 environment
2932402 Cannot move a mailbox after you install Exchange Server 2010 SP3 RU3 (KB2891587)
2931842 EWS cannot identify the attachment in an Exchange Server 2010 environment
2928703 Retention policy is applied unexpectedly to a folder when Outlook rule moves a copy in Exchange Server 2010
2927265 Get-Message cmdlet does not respect the defined write scope in Exchange Server 2010
2925273 Folder views are not updated when you arrange by categories in Outlook after you apply Exchange Server 2010 Service Pack 3 Update Rollup 3 or Update Rollup 4
2924592 Exchange RPC Client Access service freezes when you open an attached file in Outlook Online mode in Exchange Server 2010
2923865 Cannot connect to Exchange Server 2010 when the RPC Client Access service crashes
You can download Rollop Update 6 from here.
Microsoft’s original release announcements can be found here.