We have now published most of the information from this blog post as a part of our official documentation, You can find it here: Exchange Server update FAQ.
It is very important to keep updatin...
Updated Nov 27, 2023
Version 9.0
Blog Post
Yes, it can be difficult and frustrating keeping MS Exchange up to date. The quarterly updates seem to come round so quickly.
In March and April, I was in the process or migrating from Exchange 2016 Hybrid to Exchange 2019 Hybrid, something that had been meticulously planned and scheduled. First there was the March CUs, then the March SUs and then the April SUs. All important updates that had to be promptly installed and tested, in the correct order. All this while deploying Exchange 2019 Hybrid and decommissioning Exchange 2016 Hybrid. I guess bad timing on my part, but all completed now. Hopefully things will be a bit quieter now, until the next round of CUs in June/July.