Microsoft is making GitHub a part of its CoreAI division following GitHub CEO Thomas Dohmke's resignation, which Dohmke announced earlier this week.

Microsoft to integrate GitHub more closely with its CoreAI unit after key executive’s departure - SiliconANGLE

Microsoft is moving GitHub even more closely into its CoreAI team, following the resignation of GitHub CEO Thomas Dohmke today. After nearly four years as CEO, Dohmke is leaving GitHub to “become a startup founder again,” and pursue opportunities outside of Microsoft and GitHub.