The Exchange team is announcing the availability of our latest quarterly update for Exchange Server 2013 as well as updates for Exchange Server 2010 Service Pack 3 and Exchange Server 2007 Service ...
Updated Jul 01, 2019
Version 2.0
Blog Post
"Cumulative Update 11 does not include updates to Active Directory Schema, but may add additional RBAC definitions to your existing configuration. PrepareAD should be executed prior to upgrading any servers to CU11."
I have already installed Exchange 2016 Mailbox server, AD Schema and domain have been prepared for Exchange 2016 (objectVersion on Configuration Naming context = 16210).
https://technet.microsoft.com/EN-US/library/bb125224(v=exchg.160).aspx
TechNet: Exchange 2013 CU11 objectVersion on Configuration Naming context = 16130.
https://technet.microsoft.com/en-us/library/bb125224(v=exchg.150).aspx
Exchange 2013 CU11 Prepare AD: setup /PrepareAD /IAcceptExchangeServerLicenseTerms
Setup encountered a problem while validating the state of Active Directory: The Active Directory organization configuration version (16210) is higher than Setup's version(16130). Therefore, PrepareAD can't be executed. See the Exchange setup log for more information
on this error. For more information, visit: http://technet.microsoft.com/library
http://technet.microsoft.com/library(EXCHG.150)/ms.exch.setupreadiness.AdInitErrorRule.aspx
Can this be safely ignored because of Exchange 2013 - 2016 coexistence?