DiscountRequirement Plugins for 4.1

I am in the process of upgrading to 4.1, and only see one DiscountRule plugin - DiscountRules.CustomerRoles

What happened to the other ones? Here is the list that we have in 4.0:

DiscountRules.HadSpentAmount
DiscountRules.HasAllProducts
DiscountRules.HasOneProduct
DiscountRules.PurchasedAllProducts
DiscountRules.PurchasedOneProduct

I checked the github repo but didn't see anything.

https://github.com/nopSolutions/nopCommerce/tree/develop/src/Plugins

Please advise

Those plugins are no longer part of the core.  I see links to the source on this page
https://github.com/nopSolutions

(If you don't need source, you can get the run-time plugins in the Marketplace)