There’s no confusing the lead story today: OpenAI’s Codex agentic coding app is now available on Windows.
To say Codex has been a hit for OpenAI would be an understatement, reports TNS’s Frederic Lardinois. The Codex App for Mac, which launched in early February, was downloaded more than 1 million times in the first week alone, and weekly active users now stand at 1.6 million. And there will likely be quite a bit of demand for the Windows version, too: OpenAI says more than 500,000 developers were on the waitlist.
As OpenAI stresses, the Windows version wasn’t just built to be compatible with Microsoft’s operating system but “for real Windows developer environments,” as an OpenAI spokesperson put it in an email to The New Stack.
The app was built to offer native sandboxing and workflows, so that developers on Windows can use the tools they are already familiar with. By default, the app uses its own native Windows sandbox, but there is an option to use the Windows Subsystem for Linux and its tools as well.
A programming note: We’re continuing our send-time test all week. Reply to this email to let us know if you prefer to receive it in the morning or in the evening. Thanks to TNS Daily readers Caroline, Makayla, Caleb, and more, for writing in on Wednesday.
Three more interesting TNS links for your Thursday morning:
◘ GSMA Open Gateway offers developers one API for 300+ mobile networks
◘ The AI Shift: Why RISC-V is poised to challenge Arm and x86
◘ AerynOS is a Linux distribution geared toward performance and bulletproof updates
From around the web:
◘ From our friends at the Cautious Optimism newsletter: Why Anthropic’s going to dominate the AI race this year
◘ From the geniuses at Towards Data Science: Escaping the prototype mirage: Why enterprise AI stalls
◘ And here’s a step-by-step guide to becoming a Claude Code expert in 2026 from the teachers at roadmap.sh
