There is an update to the CU2 regarding a Public Folder Permissions Loss.
Please read the below post for further details :
Exchange 2013 RTM CU2 (712.22) Issue - Public Folder Permissions Loss After PF Mailbox Move - Exchange Team Blog - Site Home - TechNet Blogshttp://blogs.technet.com/b/exchange/archive/2013/07/12/e2013-rtm-cu2-issue-public-folder-permissions-loss-after-pf-mailbox-move.aspx
The donwload link for the CU2 package remains the same as below and we have changed this part, for your information and quick check on the file and build version :
Yesterday we have released the Exchange Server 2013 RTM Cumulative Update 2.
I urge you to read all the details at the Exchange Team Blog page :http://blogs.technet.com/b/exchange/archive/2013/07/09/released-exchange-server-2013-rtm-cumulative-update-2.aspx
Major improvement is that we increased the per-server database support from 50 databases to 100 databases in the Enterprise Edition of the product.
Please note that this architectural change may not provide any additional scalability as CPU may be a bottleneck, thereby limiting the number of mailboxes you can deploy per-server.
You can get the Cumulative Update 2 for Exchange Server 2013 (KB2859928) from Official Microsoft Download Center here :http://www.microsoft.com/en-us/download/details.aspx?id=39609
I like the exchange, however one major critical update is required. The web mail interface really needs some modernizing as well as options of being able to add signatures in html.
Gordon @ flowerstation.co.uk