Microsoft Developer

Catch up on all the news from @GitHub Universe

[Microsoft Developer @msdev]

Nine engineers. 1,211 pull requests in a day.

Go behind the scenes of building Copilot Cowork for six lessons on engineering with agents, including how the team moved its runtime from Python to Rust while the product was live.
https://t.co/Fveq4kRXal

[Microsoft Developer @msdev]

Claude Fable 5.2, Anthropic’s newest Fable model, is now generally available in GitHub Copilot and Microsoft Foundry.

In early testing, Fable 5.2 solved more tasks than 5.1 with fewer steps and tool calls.

[Microsoft Developer @msdev]

Jump in and start building 👇
https://t.co/UIvpf65VIu

[Microsoft Developer @msdev]

We just released a free course: GitHub Copilot app for Beginners. It includes 7 chapters and a hands-on project that walks through core agent-development concepts.

[Microsoft Developer @msdev]

@fal https://t.co/M65u9khWVQ

[Microsoft Developer @msdev]

.@fal is coming to Microsoft Foundry.

This partnership brings video models including Kling, LTX, and MiniMax to Foundry Models, giving developers more choice for building video and multimodal experiences.

[Microsoft Developer @msdev]

https://t.co/sApZOfCLED

[Microsoft Developer @msdev]

Moonshot AI’s Kimi K3.1 Pro is available in Microsoft Foundry. Build coding, research, and document agents with an open-weight model featuring text and image understanding and up to 1M tokens of context.

[Microsoft Developer @msdev]

@pierceboggan Happy building 😎

[Microsoft Developer @msdev]

@Azure We're looking forward to it! 🥳

[GitHub @github]

It’s time to make SHIFT happen. 🕹️

The theme for GitHub Game Off 2026 is SHIFT.

Shift gears. Shift perspectives. Shift reality. Or make a game controlled by the Shift keys. Your call.

You’ve got November to make something weird and wonderful.
https://t.co/jR269OD4JR

[Microsoft Developer @msdev]

GitHub Universe Day 2 Keynote https://t.co/aenshDSrFJ

[Chubby♨️ @kimmonismus]

This is one of the most interesting reveals today: Copilot Fusion on GitHub Copilot.

It offers roughly the intelligence of Opus 5.5 at 50% less cost. A truly impressive achievement. Kudos @github

[Microsoft Developer @msdev]

More on the Microsoft Copilot harness and how to get started.

https://t.co/tVjCW1LCha

[Microsoft Developer @msdev]

The @github engineering team built a best-in-class, truly multi-model harness, which we've implemented across Microsoft products.

Introducing Microsoft Copilot harness in Foundry Agent Service, a simpler way to build agents without rebuilding the execution layer.

It handles orchestration, tools, context, and controls so you can focus on your agent’s skills and outcomes.

Watch @jeffhollan's demo to see it in action.

[GitHub @github]

Frontier performance at a fraction of the cost.

In the @ArtificialAnlys Coding Agent Index, Copilot Fusion Max scored within two points of Claude Code with Opus 5.5 Max at about half the API cost per task.

Get 30% off through Nov. 30. Try it now. ⬇️ https://t.co/c0k5alLKqD

[Microsoft Developer @msdev]

GitHub Universe Day 1 Keynote https://t.co/iOdvixGfWE

[Marlene Mhangami @marlene_zw]

Last week in Cologne I showed how you can use the GitHub Copilot App and Foundry to build an agent you can deploy across Teams, Outlook or an app of your choice.

I also showed how you can integrate our new Decision 1 model for intent classification. I'm interested in agents that can recognise intent and then take action independetly if they decide they can be helpful, so this was fun to show!

[Microsoft Developer @msdev]

@Azure Elastic capacity + less orchestration overhead is a win. 👏

[Microsoft Developer @msdev]

@Azure The coolest part of cloud computing? The cooling 😜