Cumulative Update

Cumulative Update 12 for Exchange Server 2013 - Microsoft Support

: Each new update contains every fix from previous packages. cumulative update

A cumulative update is a single software package that bundles multiple previously released updates—including security patches, bug fixes, and system improvements—along with new fixes into one installation. Instead of requiring users to install dozens of individual patches chronologically, a cumulative update allows a system to reach the most current state in a single step. How Cumulative Updates Work Cumulative Update 12 for Exchange Server 2013 -

: In some enterprise software, like Exchange Server 2013 , uninstalling a cumulative update may remove the entire product rather than reverting to a previous version. How Cumulative Updates Work : In some enterprise

: A user can install the latest update (e.g., CU19) even if they missed several prior versions (e.g., CU5 through CU18).