Microsoft has released security updates for vulnerabilities found in:
Exchange Server 2013
Exchange Server 2016
Exchange Server 2019
All versions (Cumulative Update levels) are impacted. ...
Updated Aug 05, 2021
Version 15.0
Blog Post
Hello everybody.
Does anyone have an idea, what should be the path for Schema Update in our configuration?
Exchange 2013 CU23 - June2021 SU
We are running Hybrid scenario with EXO/O365
Because there is a plan to upgrade and migrate to Exchange 2019, schema was already updated by Exchange 2019 CU9 binaries - rangeUpper 17002 (yea, I know latest is CU10).
But only schema was updated, there is none Exchange 2019 server yet.
So that we will go with installing July 2021 SU for exchange 2013 CU23. but then what? I guess we should not run schema update from current Exch2013, or am I wrong? I'm really confused here. Does it mean that we need to install the first Exchange 2019 in order to be fully safe?
Thank you
urbandan