US Payroll Colorado 2021 tax update notice

I received a Sage City forum update saying that Colorado Income Tax Withholding has been updated for 2021.  The announcement just says it's for Sage 300.  How do I know whether it is for Sage 300 CRE or Sage 300 ERP?  It states the CO update was not inculed in the Q4 SR1 2020 US Payroll Tax Update.  Is this update for Sage 300 ERP only?  My CRE tax updates were for 20.2 and 20.3.