Edit: Update Rollup 18 is now available for Exchange 2010 SP3 see the post Exchange 2010 SP3 Update Rollup 18 installation tips.
On 9th December Microsoft released the Exchange 2010 SP3 Update Rollup 8, the update was subsequently pulled and then re-released as Update Rollup 8 v2 a few days later.
See my post regarding the issues: Exchange 2010 SP3 Update Rollup 8 released and then pulled!
The Update Rollup 8 v2 for Exchange Server 2010 SP3 contains the fixes for the security issue that is described in KB2986475.
Update Rollup 8 v2 for Exchange Server 2010 SP3 resolves the issues that are described in the December 2014 security update, and the following Microsoft Knowledge Base (KB) articles:
3004235 Exchange Server meetings in Russian time zones as well as names of time zones are incorrect after October 26, 2014
3009132 Hybrid mailbox moves to on-premises environment but finishes with CompletedWithWarnings status
3008999 IRM restrictions are applied to incorrectly formatted .docx, .pptx, or .xlsx files in an Exchange Server 2010 environment
3008370 Group members are not sorted by display name when HAB is used with OAB in Exchange Server 2010
3008308 Public folder database migration issue in a mixed Exchange Server environment
3007794 Hub Transport server cannot deliver messages when a database fails over to a cross-site DAG in Exchange Server 2010
3004521 An Exchange server loses its connection to domain controllers if a public folder server is down in Exchange Server 2010
2999016 Unreadable characters when you import ANSI .pst files of Russian language by using the New-MailboxImportRequest cmdlet
2995148 Changing distribution group takes a long time in an Exchange Server 2010 environment
2992692 Retention policy is not applied to Information Rights Management protected voice mail messages in Exchange Server 2010
2987982 Issues caused by ANSI mode in Exchange Server 2010
2987104 Email message is sent by using the “Send As” instead of “Send on Behalf” permission in Exchange Server 2010
2982017 Incorrect voice mail message duration in Exchange Server 2013 and Exchange Server 2010
2977279 You cannot disable journaling for protected voice mail in Exchange Server 2013 and Exchange Server 2010
The update can be downloaded from here.
I’ve installed this on my test SBS 2011 server, it took just 12 minutes from start to finish, and my test SBS server isn’t very powerful. So I wouldn’t expect this to take much longer than this in production.
The new update has been available for a week now, and I have not seen any issues reported with it so I suspect it is safe to deploy in your production environment, although the week before Christmas you will probably want to wait until the new year!
While looking for others experience of installing the update rollup I’ve come across a few suggestions that might help speed the install up and a few best practice tips.
1. Reboot the server prior to installing the update rollup. If it has been up for a while a reboot will make sure it is in a know good state.
2. Run the update from an elevated command prompt.
3. In Internet Explorer, deselect “Check for Publisher’s certificate” and “Check for server certificate revocation”, from Internet Options, Advanced tab, Security options.
4. Disable antivirus software.
5. Have a full backup and a system state backup of the server.
6. Make sure the SBS console is closed if installing the update on SBS 2011.
7. Backup any OWA customisations you have in place.
While the update is installed it will automatically stop Exchange and IIS services, and restart them again once complete.
Once the update has finished, remember to undo the changes made in steps 3 and 4 above.
The Microsoft support kb http://support2.microsoft.com/?kbid=2986475 and Technet http://technet.microsoft.com/en-us/library/ff637981.aspx are a couple of useful articles you may want to check out for further reading prior to installing the update rollup.