TL;DR:
• GitHub CEO Thomas Dohmke resigned to return to startup life, ending GitHub's independence at Microsoft
• Microsoft won't replace the CEO role - GitHub now reports directly to CoreAI team led by former Meta exec Jay Parikh
• CoreAI aims to build an "AI agent factory" platform for enterprises, consolidating Microsoft's developer tools strategy
• Transition continues through 2025 as Microsoft reshapes its $7.5B GitHub investment into AI-first architecture
Microsoft just ended GitHub's seven-year run as an independent subsidiary. CEO Thomas Dohmke resigned today to "become a startup founder again," triggering a complete organizational restructuring that absorbs the $7.5 billion acquisition into Microsoft's new CoreAI division. The move signals Microsoft's aggressive push to dominate enterprise AI tooling.
The developer world's biggest platform just lost its independence. GitHub CEO Thomas Dohmke announced his resignation today in a memo to employees, marking the end of the coding platform's run as a separate entity within Microsoft. After nearly four years leading the company, Dohmke is departing to "become a startup founder again" - potentially creating new competition for his former employer's AI ambitions.
The leadership vacuum isn't getting filled. Microsoft made the strategic decision not to replace Dohmke's CEO position, instead folding GitHub entirely into its CoreAI organization. This represents the most significant restructuring since Microsoft's $7.5 billion acquisition in 2018, when the tech giant promised to maintain GitHub's independence - a promise that officially expires with this reorganization.
"GitHub and its leadership team will continue its mission as part of Microsoft's CoreAI organization, with more details shared soon," Dohmke wrote in his farewell memo. He's staying through the end of 2025 to manage the transition, leaving "with a deep sense of pride in everything we've built as a remote-first organization spread around the world."
The move puts GitHub squarely under Jay Parikh, the former Meta executive who now leads Microsoft's CoreAI team. Parikh's division represents Microsoft's newest engineering powerhouse, combining the platform and tools division with Dev Div teams to create what he calls an "AI agent factory." In , Parikh outlined his vision for transforming how enterprises build AI-powered applications.
