Microsoft delivers first cumulative update to Exchange 2013
On April 2, Microsoft announced availability of Exchange 2013 Cumulative Update 1 (CU1), which provides both bug fixes and new feature updates to Microsoft's latest on-premises Exchange release.
Unlike previous versions, cumulative updates do not use the rollup infrastructure. Instead, under the new Exchange servicing model, "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," the team explained in a new blog post with instructions for installing CU1.
