Cumulative Update 3 for Exchange 2013 is available for direct download from Microsoft site. It contains a total of 23 documented fixes.
The most notable fix is that Internet Explorer 11 no longer loads OWA Light instead of OWA Premium.
Additional notable fixes are:
- KB2874216 Security issue that is described in Security Bulletin MS13-061 is resolved by an Exchange Server update
- KB2888315 Event 2112 or 2180 is logged when you try to back up a database in an Exchange Server 2013 environment
- KB2902938 You cannot preview Office documents in shared folders by using Outlook Web App in an Exchange Server 2013 environment
- KB2902929 You cannot forward an external meeting request in an Exchange Server 2013 environment
- KB2890814 No redirection to the Outlook Web App URL for Exchange Online users in an Exchange hybrid deployment
- KB2883203 Exchange Server 2013 restarts frequently after Cumulative Update 2 is installed
CU3 also adds the following new features and improvements to Exchange 2013
- Rights Management Connector
- Groups enhancements
- Viewing the administrator audit log
- Improved Admin Audit Logging
Download: Cumulative Update 3 for Exchange Server 2013 (KB2892464)
Download: Exchange Server 2013 CU3 UM Language Packs
View: Description of Cumulative Update 3 for Exchange Server 2013
View: Release Notes of new features for Exchange 2013 CU3
View: Exchange Blog post about Exchange 2013 CU3