We have just released the Cumulative Update 7, CU7, and the CU7 UM Language Packs.
You can read about all the details on :
There you can read, and I quote :
" Exchange Server 2013 Cumulative Update 7 includes updates which make migrating to Exchange Server 2013 easier. These include:
- Support for Public Folder Hierarchies in Exchange Server 2013 which contain 250,000 public folders
- Improved support for OAB distribution in large Exchange Server 2013 environments
Customers with Public Folders deployed in an environment where multiple Exchange versions co-exist will want to read Brian Day’s post for additional information.
Cumulative Update 7 includes minor improvements in the area of backup. We encourage all customers who backup their Exchange databases to upgrade to Cumulative Update 7 as soon as possible and complete a full backup once the upgrade has been completed. These improvements remove potential challenges restoring a previously backed up database. "
If this is not enough info and you still want to know what this Cumulative Update fixes, please check this link .
To get the CU7 you can go ahead and browse to this page :
To get the latest UM Language Packs for CU7 check this link :