From the Exchange Team.
We know a lot of you have been waiting for this, and so it is with great excitement that we announce that Exchange Server 2013 RTM Cumulative Update 1 (CU1) has been released to the web and is available for immediate download! This is the first release using the new servicing model for Exchange Server 2013. In addition to this article, the Exchange 2013 RTM CU1 release notes are also available.
More information can be found here; as always please read the comments section prior to downloading!!
Server Deployment Updates and Changes (Read First)
Once the preparatory steps are completed, you can then deploy CU1 and start your coexistence journey. If this is your first Exchange 2013 server deployment, you will need to deploy both an Exchange 2013 Client Access Server and an Exchange 2013 Mailbox Server into the organization. As explained in Exchange 2013 Client Access Server Role, CAS 2013 is simply an authentication and proxy/redirection server; all data processing (including the execution of remote PowerShell cmdlets) occurs on the Mailbox server. You can either deploy a multi-role server or each role separately (just remember if you deploy them separately, you cannot manage the Exchange 2013 environment until you install both roles).
If you already deployed Exchange 2013 RTM code and want to upgrade to CU1, you will run setup.exe /m:upgrade from a command line after completing the Active Directory preparatory steps or run through the GUI installer. Deploying future cumulative updates will operate in the same manner.
Notes:
- Unlike previous versions, in Exchange 2013, you cannot uninstall a single role from a multi-role server. For example, if you deploy the CAS and MBX roles on a single machine, you cannot later execute setup to remove the CAS role; you can only uninstall all server roles.
- When you deploy the first Exchange 2013 Mailbox server in an existing Exchange organization, a new default Offline Address Book is created.
- If your environment contains only Exchange 2007, and you upgrade to Exchange 2013, keep in mind you cannot deploy Exchange 2010 in that environment at a later time. If you foresee a need to deploy Exchange 2010 servers into your environment, deploy an Exchange 2010 multi-role server (with all four servers roles) prior to executing Exchange 2013 setup.exe /PrepareAD
- Unlike previous versions, cumulative updates do not use the rollup infrastructure; cumulative updates are actually full builds of the product, meaning that when you want to deploy a new server, you simply use the latest cumulative update build available and do not necessarily need to apply additional Exchange Server updates.
- As you start migrating your mailboxes to Exchange 2013, one thing you may notice is that your mailboxes appear to be larger post move. Our improved space calculations may result in a mailbox’s reported size increasing on average of 30% when the mailbox is moved from a legacy version of Exchange to Exchange 2013.
For example, if a mailbox is reported as 10GB in size on Exchange Server 2010, then when the mailbox is moved to Exchange 2013, it may be reported as 13GB. This does not mean that migrating to Exchange 2013 will increase your capacity footprint by 30% per mailbox; it only means that the statistics are including more data about the space the mailbox consumes.
New Functionality Included in Cumulative Update 1
- Address Book Policy Routing Agent has been included in Exchange 2013 RTM CU1.
- Exchange 2013 RTM CU1 groups can once again be owners of groups for membership management.
- Public Folder Favourites Access through Outlook Web App
- Exchange Admin Center (EAC) has been enhanced and now includes Unified Messaging management.
High Availability and Monitoring Enhancements
- The Best Copy Selection algorithm now honors MaximumActiveDatabases.
- Auto-reseed now supports disks that have Bitlocker encryption.
- Many probes, monitors, and responders have been updated and improved over the RTM release.
- Get-HealthReport cmdlet has been streamlined and its performance has been optimized.
- Exchange 2013 RTM CU1 will support the Exchange Server 2013 Management Pack for System Center Operations Manager (SCOM).
***Scott (beam me up) Schnoll has posted an update on High Availability Changes in Exchange Server 2013 CU 1
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