AncestryDNA Plans Update to Matching Algorithm

AncestryDNAAncestryDNA is making several changes to its matching algorithm in the next week or two (an exact time is not yet available). You may recall an announcement that was made earlier this month entitled “New Advances in DNA Science Coming Your Way” (pdf) in which they stated the following:

“These advancements are expected to deliver more-precise predictions of whom you are related to, and how closely, among the million-plus others in the AncestryDNA database.”

There were no specifics in the announcement, however. Last night, AncestryDNA provided additional information about the changes that we will be seeing in our match lists in the next week or two.

Before I launch into the specifics, here is a very high-level summary, based on the information we were provided:

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