What is the replacement of enum 'RetailCustomerOrderType'

[RethaLam]

I'm compiling my custom against v10.0.44 and I saw that the enum 'RetailCustomerOrderType' is marked as obsolete.
I also found that Microsoft is still using it in their code e.g. RetailTransactionServiceTransactions.fillSalesOrderDetails() and fillquoteDetails(). It is also the enum that RetailParameters table field DefaultOrderType extends from.

So if it is obsolete, then there must be another enum to use to differentiate between a quotation and a sales order

I cannot change my custom not to use it if I do not know what enum to replace it with.