During Exchange 2013 upgrade to CU9 was required to use commands:
setup.exe /PrepareSchema /IAcceptExchangeServerLicenseTerms
setup.exe /PrepareAD /IAcceptExchangeServerLicenseTerms
setup.exe /PrepareDomain /IAcceptExchangeServerLicenseTerms
Are they all needed also during upgrade to CU11 or CU12?