Forum Discussion
Office 365, Hybrid, On-Prem CU Upgrade.Exchange 2016.
Hey Guys,
This evening we are supposed to upgrade our on-prem exchange servers to CU 8. They are currently running CU1 (so pretty old). Due to the .net requirements of the various Exchange CUs I am going to apply CU4 then install .net 4.7.2 then Apply CU8. This is for Exchange 2016.
The Schema has already been updated, however before I start the process, is there any thing I should be aware of before upgrading the exchange servers specifically as it relates to office 365? I have performed dozens of CU installs on Exchange Servers, but when those servers had office 365 hybrid configured.
Our Autodiscover records are pointed to the cloud. We have all of our mailboxes in the cloud. however we do have dynamic distro groups.
Thanks,
Robert
Hi Robert,
Since you do not have nothing pointing to Exchange, you can do the upgrade without any downtime.
See the upgrade paths in the below requirements.
If you're upgrading to Exchange 2016 CU4 from Exchange 2016 RTM, CU1, or CU2, is recommended that you install Exchange 2016 CU4 before .NET Framework 4.6.2 or .NET Framework 4.6.1 and its related post-release fixes.
After this install Exchange 2016 CU8 and then .NET Framework 4.7.1
Please see the requirements https://technet.microsoft.com/library/bb691354(v=exchg.160).aspx and here also https://technet.microsoft.com/library/aa996719(v=exchg.160).aspx.
11 Replies
Hi Robert,
Since you do not have nothing pointing to Exchange, you can do the upgrade without any downtime.
See the upgrade paths in the below requirements.
If you're upgrading to Exchange 2016 CU4 from Exchange 2016 RTM, CU1, or CU2, is recommended that you install Exchange 2016 CU4 before .NET Framework 4.6.2 or .NET Framework 4.6.1 and its related post-release fixes.
After this install Exchange 2016 CU8 and then .NET Framework 4.7.1
Please see the requirements https://technet.microsoft.com/library/bb691354(v=exchg.160).aspx and here also https://technet.microsoft.com/library/aa996719(v=exchg.160).aspx.
Thanks Nino. I meant to put 4.6.2 in my original post. I am actually going to upgrade to that version of .net and not 4.7.1. (The 4.7 version will come later).
Thanks,
Robert
- Ok Robert. Keep in mind that you now also have CU9 available to install.
