The existing method signatures have been made obsolete in favor of something slightly simpler and more deterministic.
The new methods accept a bool isLiveMode flag instead of the DataFeedEndpoint.
The GetSource method returns a new type: SubscriptionDataSource, which combines the source string and the SubscriptionTransportMedium.
Existing sub-types of BaseData have been updated with the new signatures. IBaseData has not been touch as it is mostly unused by LEAN infrastructure.
snugs