Microsoft released Exchange Server 2016 CU6 a few days ago.
In this tutorial we will go through the steps of running the upgrade. For a list of fixes etc. you can refer to the link below:
Take note that there is a Schema update in this CU. Let’s proceed..
We have included a number of screenshots, not all of them but you can see in Step 1 the install the Organization Preparation is done (Schema Update). You should run the command setup /PrepareAD and /PrepareSchema before proceeding with the installation. We ran the PrepareAD command already but wanted to show you the install does the Schema upgrade before it proceeds.
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6a-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6b-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6c-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6d-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6e-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6f-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6g-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6h-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6i-1.png)
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6j.png)
After about 1.5 hours the upgrade completed.
Post installation, opening outlook and my test client successfully connected without issue:
![Exchange 2016 - upgrade to cu6 Exchange 2016 - upgrade to cu6](https://www.collaborationpro.com/wp-content/uploads/2017/07/EX2016CU6k.png)
Hope it helps.