The Exchange team today announced the availability of Update Rollup 6 for Exchange Server 2010 Service Pack 3. RU6 is the latest rollup of customer fixes available for Exchange Server 2010. The release contains fixes for customer reported issues and previously released security bulletins.  For example, the security issue that was addressed in Exchange 2010 SP3 RU4 is contained in RU6. 

This is build 14.03.0195.001of Exchange 2010, and KB2936871 has the full details for the release

Note that this is for the Service Pack three branch of Exchange code.  Why?  Exchange 2010 SP2 exited out of support on the 8th of April 2014 and will no longer receive updates. 

Updates Of Particular Note

• 2932402 Cannot move a mailbox after you install Exchange Server 2010 SP3 RU3 (KB2891587)
• 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

Issues Resolved

• 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

Important Notes

Now, before we rush off to download and install this there are a couple of items to mention!

• Test the update in your lab before installing in production.  If in doubt test…
• If the Exchange server does not have Internet connectivity then this introduces significant delay in building the Native images for the .Net assemblies as the server is unable to get to http://crl.microsoft.com.  To resolve this issue, follow these steps:
  1. On the Tools menu in Windows Internet Explorer, click Internet Options, and then click the Advanced tab.
  2. In the Security section, click to clear the Check for publisher's certificate revocation check box, and then click OK.
  We recommend that you clear this security option in Internet Explorer only if the computer is in a tightly controlled environment. When setup is complete, click to select the Check for publisher’s certificate revocation check box again.
• Update Internet facing CAS servers first
• Backup any OWA customisations as they will be removed
• Test (yes technically this is in here for a second time but it is important!)

Cheers,

Rhoderick