Check Only Data Sources allow cross-object matching between Standard Objects (Lead, Contact etc.). The ability to validate new leads against existing contact data and block duplicates is a key use case for this new functionality.
v1.26 “Spring 17” Release Notes UpdatePosted 20 Feb 2017
v1.26 Release Notes Update.
Automated record-level flag management plus additional distributed data stewarding enhancements.
v1.25 Release Notes UpdatePosted 02 Feb 2017
v1.25 Release Notes Update.
New De-centralised MDM features (e.g. Selective Child Record Re-parenting) plus a new in-memory API matching operation intended for distributed MDM point-of-entry matching.