CU8 to CU13

I'm trying to determine some of the prep work I need to do before CU8 to CU13.  Based on the documentation, I'm assuming I need to run the following commands on the DC prior to the upgrade.  Can someone confirm?

setup.exe /PrepareSchema /IacceptExchangeServerLicenseTerms
setup.exe /PrepareAD /IacceptExchangeServerLicenseTerms
setup.exe /PrepareDomain /IacceptExchangeServerLicenseTerms

Thanks