With the release of Exchange Server 2016 RTM edition that mark the product as production ready I decided to write a post about the process of upgrading my Exchange Server 2016 Preview edition to RTM edition which is current version.
To step the process, download the software from the link below and run the Install on your Exchange Server.
As you can see below, the build number before the upgrade Is 225.17.
To find out how to check your exchange Server version check the post I published a few days ago.
In the upgrade screen click Next and follow the prompts
When setup Is done, Click Finish
After the upgrade the build number Is set to 255.42
As you can see Microsoft made a great work In making the upgrade process extremely smooth.