Dive into the biggest news from Microsoft Build and learn how to start building with it today 👇
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Go beyond the scoreline.
Inside the Game: Developer Hackathon is open for registration.
Build with AI, football data, and Microsoft technologies to reimagine how the game can be understood and experienced.
Register by Oct. 20: msft.it/6016aY5LY
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Our team spent 10 years teaching machines to read documents.
LLMs improved language understanding, but reliable document extraction still depends on the system around the model.
Here’s what we learned building Azure Content Understanding 🧵
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Grounding ties extracted values to source evidence. Confidence scores flag uncertainty. A developer-defined JSON schema gives your app structured output.
Together, they help you validate results or route them for review before your app or agent acts.
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Applying LLM reasoning selectively can also reduce token usage.
With recent contextualization work, pre-built analyzers in the current preview cut LLM token consumption by up to 99%.
Read Cha Zhang’s full breakdown of the work and lessons.
commandline.microsoft.com/az…
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WSL containers is now generally available.
Build, run and deploy Linux containers directly on Windows with the WSL containers CLI and API 🧵
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WSL containers API
Access functions to run Linux containers programmatically in your native Windows apps – unlocking scenarios like running local AI workloads or using cloud-based containerized applications locally.
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The release also includes new commands and capabilities, partner and community integrations, and enterprise manageability.
To try it out, simply run wsl --update in your terminal or download the latest release from GitHub.
github.com/microsoft/wsl/rel…
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Save the date: October 7 at 10:00 AM PT. Windows. @Surface. @NVIDIARTXSpark. Come see what's next.
Tune in on YouTube: msft.it/6014alDuy
ALT "10.07" in large white numbers above a Surface Laptop Ultra with a dark abstract wallpaper.
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GPT-6.1 Sol from OpenAI is now available in GitHub Copilot and Microsoft Foundry.
In early testing, it completed tasks with fewer tokens and steps than earlier models in the GPT-6 and GPT-5.6 families, making it more affordable to build and run agents at scale.
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When an agent’s guardrail says “deny,” the action needs to stop.
Agent Hooks gives builders a shared control contract and conformance tests to verify enforcement across frameworks. Explore the spec, five SDKs, and no-key demos. msft.it/6015a9m3v
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Introducing run-assert-eval.
With a single prompt in @code, the skill identifies risks specific to your agent, measures how often they occur, generates runtime policy based on those findings, and reruns the same eval to see whether the policy worked.
commandline.microsoft.com/ru…
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The skill ships in the ASSERT repo with seven worked domains and 14 risk suites: github.com/responsibleai/ASS…
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Claude Opus 5.5, Anthropic’s newest Opus model, is now available in GitHub Copilot and Microsoft Foundry.
In early testing, Opus 5.5 resolved tasks comparably to Claude Opus 5 while using significantly fewer steps and tokens.
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Build agentic apps with the GitHub Copilot SDK, without implementing the agent loop yourself.
Join this beginner-friendly livestream to learn how to use sessions, tools, MCP servers, streaming events, and more to embed Copilot’s agent runtime in your apps. Plus, check out specific sessions for .NET and Java development.
No prior SDK experience required. Register for English, Chinese, Portuguese, Spanish, Japanese, or Korean 👇
gh.io/letslearn
ALT Let's Learn GitHub Copilot SDK
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Yes or YES?
Get your #GitHubUniverse pass 👇
githubuniverse.com/?utm_sour…
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never starred two repos so fast
Developers are buzzing. We thought these were pretty fly... 🪰
github.com/nftechie/doomfly
github.com/mattyhempstead/fl…
ALT Screenshot of DOOMFLY
ALT Screenshot of Fly / Wirehead
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