Last week was a big week for Exchange 2016. Microsoft released Cumulative Update 11. At this time no updates were released for Exchange 2013 or Exchange 2010. Exchange 2013 entered extended support back on April 10th, and Microsoft announced in June that cumulative update 21 was the last planned update for Exchange 2013.
As always, test these updates in a lab first! I recommend checking out this 7-part guide on configuring Exchange in your lab. It doesn’t take much to get one going.
The updates are as follows:
So, what’s new in these Cumulative Updates?
Cumulative Update 11 now officially supports .NET Framework 4.7.2. Framework 4.7.2 is only optional at this point and will not become mandatory until the June 2019 updates. Due to no quarterly update scheduled for December, it is expected that CU13 will be the first version to enforce 4.7.2 as a requirement.
Support for 4.7.2 has been officially added to Exchange 2013 CU21, which was released back in June. 4.7.2 will also be a requirement for Exchange 2019. However, 4.7.2 is preinstalled with Windows Server 2019, so it will not require a separate download. For a great resource on navigating which .NET update goes with which CU I recommend reading Upgrade Paths for CU’s & .NET by Michel de Rooij.
In the June updates, it was stated that all Exchange roles would require Visual C++ 2013. Microsoft has since clarified this statement to the following:
- Mailbox role will require both Visual C++ 2012 & Visual C++ 2013
- Edge & Management tools only require Visual C++ 2012
Cumulative Update 11 will now perform prerequisite checks to confirm the necessary versions of Visual C++ are installed.