Microsoft has released Cumulative Update 3 for Exchange Server 2013.
From the Microsoft Exchange Team blog:
We would like to call attention to an important fix in Exchange Server 2013 Cumulative Update 3 which impacts customers who rely upon Backup and Recovery mechanisms to protect Exchange data. Cumulative Update 3 includes a fix for an issue which may randomly prevent a backup dataset taken from Exchange Server 2013 from restoring correctly. Customers who rely on Backup and Recovery in their day-to-day operations are encouraged to deploy Cumulative Update 3 and initiate backups of their data to ensure that data contained in backups may be restored correctly. More information on this fix is available in KB2888315.
In addition to the customer reported fixes in Cumulative Update 3, the following new enhancements and improvements to existing functionality have also been added for Exchange Server 2013 customers:
- Usability improvements when adding members to new and existing groups in the Exchange Administration Console
- Online RMS available for use by non-cloud based Exchange deployments
- Improved admin audit log experience
- Windows 8.1/IE11 no longer require the use of OWA Light
Cumulative Update 3 includes Exchange related updates to Active Directory schema and configuration. For information on extending schema and configuring the active directory please review the appropriate TechNet documentation. Also, to prevent installation issues you should ensure that the Windows PowerShell Script Execution Policy is set to “Unrestricted” on the server being upgraded or installed. To verify the policy settings, run the Get-ExecutionPolicy cmdlet from PowerShell on the machine being upgraded. If the policies are NOT set to Unrestricted you should use the resolution steps in KB981474 to adjust the settings.
Cumulative Update 3 is available for download here.
For deployment steps refer to this guide to installing cumulative updates for Exchange Server 2013.