News items:
https://blog.myheritage.com/2026/10/new-confirm-known-relationships-with-dna-matches-on-myheritage/
Ancestry’s 2026 Update, SideView 2.0 update, and their new regions by grandparent feature:
https://www.ancestry.com/c/ancestry-blog/dna/ancestral-regions-by-grandparent
https://help.ancestry.com/hc/en-us/articles/53933424726547-SideView-Update
https://www.ancestrycdn.com/support/images/Ethnicity2026_white_paper.pdf
https://www.ancestry.com/c/dna/ancestry-dna-ethnicity-estimate-update
https://www.ancestry.com/c/ancestry-blog/dna/ancestrydna-2026-origins-update
https://help.ancestry.com/hc/en-us/articles/53933347292051-Regions-by-Parent-and-Grandparents
Reference Panels:
https://support.ancestry.com/s/article/AncestryDNA-Reference-Panel
https://customercare.23andme.com/hc/en-us/articles/212169298-23andMe-Reference-Populations-Regions
https://help.familytreedna.com/hc/en-us/articles/4401981569423-Population-Clusters#h_01JC65JBD30B644TB9AWKN0NKJ
https://www.myheritage.com/wiki/Reference_Populations
Tree Completeness:
https://blog.dnapainter.com/blog/eight-ways-you-can-use-ancestral-trees-at-dna-painter/
https://thegeneticgenealogist.com/2015/08/11/how-much-of-your-family-tree-do-you-know-and-why-does-that-matter/
Inheritance:
https://support.ancestry.com/s/article/Ethnicity-Inheritance
https://help.ancestry.com/hc/en-us/articles/53933270317971-Unexpected-Ancestral-Regions
https://www.legacytree.com/blog/surprising-ethnicity-results
https://thegeneticgenealogist.com/2009/11/10/qa-everyone-has-two-family-trees-a-genealogical-tree-and-a-genetic-tree/
White Papers and guides:
https://www.ancestrycdn.com/support/images/Ethnicity2026_white_paper.pdf
https://www.ancestrycdn.com/support/us/2024/09/ancestraljourneyswhitepaper2024.pdf
https://www.23andme.com/ancestry-composition-guide/
https://blog.familytreedna.com/myorigins-3-0-white-paper/
https://blog.familytreedna.com/recent-and-ancient-origin-results/
DNA Painter and Chromosome Painters:
https://blog.dnapainter.com/blog/painting-your-populations/
https://blog.dnapainter.com/blog/new-ancestrydna-chromosome-painter-segments/
https://dnapainter.com/blog/can-ancestrydnas-new-origins-segments-help-identify-ancestral-lines/
23andMe’s latest update:
https://blog.23andme.com/articles/ancestry-composition-version-7-is-here
https://www.23andme.org/blog/articles/introducing-premium-parental-inheritance/
MyHeritage’s latest update:
https://blog.myheritage.com/2025/02/introducing-ethnicity-estimate-v2-5-improved-dna-ethnicity-model/
Ancient Origins and Historical Matches:
https://blog.myheritage.com/2025/02/introducing-ancient-origins-trace-your-origins-back-10000-years/
https://blog.familytreedna.com/recent-and-ancient-origin-results/
https://help.familytreedna.com/hc/en-us/articles/4415445549711-ancientOrigins-Guide
https://www.23andme.org/blog/articles/23andmes-historic-matches/